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Tech - Spec`S - Hoshizaki America, Inc.

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1. BK BLACK W BK WHITE BLACK 115 120 60 1 BROWN W BR WHITE BROWN THERMAL COMP BU BLUE W BU WHITE BLUE t PROTECTOR _ gy N DBU DARK BLUE W O WHITE ORANGE lt gt GY GRAY W R WHITE RED LBU LIGHT BLUE BR 0 ORANGE RUN C PINK wM T R RED START CAP VIOLET 189 227 WHITE ONLY 5 BR AIR COOLED BR FAN MOTOR tay MODEL 0 1 MOTOR THERMAL PROTECTOR PROTECTOR GEAR MOTOR gt DBU 9 24MFD qo T2 BR i R AER POWER SWITCH HEATER CONTROL BK RELAY noon i POWER 11 8 PROTECT GEAR MOTOR GEAR MOTOR RELAY PROTECT RELAY AGITATING MOTOR AGITATING MOTOR BK DISPENSING MOTOR DBU BR SOLENOID z NOISE KILLER LBU IAM TRANS O R FUSE 24v Jov 1BU DISPENSE 105 WATER VALVE FUSE 05 DBU KILLER HEATER THERMOSTAT cwm LBU FLUSH WATER VALVE NOISE KILLER En BK SWITCH CONTROL ERES
2. on 115 120 60 1 L N an BK POWER SWITCH BR PUMP DOWN x10 SOLENOID VALVE 1 e w o 3 29 4 n sy wo 5 4 26 al 8 w 4 R INTERNAL Len PROTECTOR w BR wo wo FUSE EVAP HEATER BK T1 7 SEE TABLE GEAR n wW 4 MOTOR 2 BK CT c GY GEAR MOTOR SEE TABLE CONTROL TRANSFORMER pui BR 12 INLET BR wo wo jater x VALVE BR BR WIR CONTROL SWITCH war BIN CONTROL o OPEN ICE TNFRARED T SENSOR afaa CLOSED DRAIN ks si CONTROL BOARD w o w o BK o Y ilo K6 1 4 1654 1 7 Sete 52 WIR 1R LBU FLOAT SWITCH UPPER LOWER wid 0 w o xrPUWP POWWSoLENOTD vary MODEL GEAR MOTOR GEAR MOTOR FUSE WIRE COLOR CODE X10 COMPRESSOR CONTROL RELAY 5 1001 1 BR BROWN GEAR MOTOR PROTECT RELAY gt 3 BU BLUE DBU DARK BLUE FS 1500MLH C _ 65 7A GR GREEN GY GRAY SI DIP SWITCH SETTING
3. 2 067 10 018772 WOOT 119 u D 6 T t a 5 t ij PE EM to su ELE am ask AO 3 perm 8 4 n je 4 1 ie o9 or WM 0 lo 1 Em n 1 Hus on x Li DINS al i rors jo 010 BA lo UL 00 4 4 8 or 9 m q 4 4 3 sm ELS Is 5 OE a ol i 40 an rj aes 12 fo OX TWIREL 5 lop 4 Le Ti RR 9 mg wow ya 96s T y 0 0 aji 5 5 107 le i MISIR awe 5 0408 m 40 wi X 0 0 a z 7 vol 3504 LI
4. gt B sse 5 as z EE a ZEE 3 ES L9 9 9 0 9 0 2 55 Sha 2 9 9 9 9 Oe ges zl z Ei E E smes E o t 358 ae lt S 2 MC gt xL al Sis 4 1 0 Cu Qe id 7 Be 5 e 22 29 5 3 M 5556 n s a ITT H _ el x Z4 s High Pressure Switch Thermostat Switch Cut out 426 PSIG Cut out 266 F 9 F 130 5 C Cut in 341 22 PSIG Cut in 239 F 9 F 115 C 5 C Note Generic diagram SRK 7H uses 30MFD run capcitor SRK 14J has 2 HGV s All other SRK s have 1 HGV Start capacitor on all but SRK 14J is 145 174MFD 228 m 10 1 15 KMS 822MLH amp SRK 10H
5. ASH maoa 9 910 4 644 682 uno DTG wo 0 9 0 01 4 6 4 992 8 1 EBD To qne Qu d aem E AYER JAWA NIV OLX Nd d n NN BW 00 3NW 0 M4 191 191 CL EUN DISd 22 amp umno ND 0 4 010 N 1 HSVM 3 3 0 1n x 3 j Noua 18 DVE 0 300 8010 fo n 6 n 1 1 T 2 4 700 007 al p at a rj 4 BH x Fil 3900 d d a 4 4 0 ig a t A by to af s T 08 wo 3674 to 0018 TWIN o 19 019 0 y X toe SW 1 i T to 0 D i x T i 1 x qu gt 10 1 15 229 KMS 830MLH amp 5VDC SRK 8H Transformer Output 10 5V at 115V
6. gt 2 Qe 2l 5 85 d tit 88 208 ETT SER ee _ c L Oo E T E E v 5 5 c c Es c Lu T c Discharge Line Thermostat Switch 266 F 9 F 130 5 C 239 F 9 F 115 5 High Pressure Switch 42622 PSIG 341 22 PSIG 250 10 1 15 BIN CONTROL RR KM 2000SWH3 SRH3 KM 2100SWH3 SRH3 KM 2400SRH3 KM 2500SRH3 CONTROLLER BOARD Ho K2 03 T INTER QC SW THERMISTOR I FLOAT SH MS mew TRANSFORMER HOTGAS VALVE RI VALVE R SW LIN 3A2394 010 CRANKCASE HEATER CONTACTOR 9 BK AN BR gt
7. 115 12076071 1 b WIRE COLOR CODE R BK BLACK BR BROWN 0 DBU DARK BLUE GY GRAY BR a ese t polt 4 LBU BLUE s m ch 243 2820 P PINK rg R RED gi cm hwa 7 VIOLET xax TR M MHITE y r UR 2 525 Y YELLOW Fe W BK WHITE BLACK e enm 1 W BR WH1TE BROWN Bo gag W BU WHI BLUE W O WHITE ORANGE yx 7 W R WHITE RED 1 2 1 e m SE Dm BC 7 BK Motor yo yo PLN yo 5 o 0 P Dau Bk i D R Lau E ___ dirt yALYE wo id 18u is como sures We xpo yum 08 yr quen Bic Yun BR R 12345 1 73 DICIT TEVAC n ye yn E KI R e 5 ua MUN SAC E c Noise FILLER INI CONTROL BOARD t E ut BK BK 3 iore i 1 F 180 WDC 1 50 5 ist ute jue e320 1 81 5 0 x 2 mk T Br E
8. Note 1 Some models use mechanical bin control instead of thermostatic bin control with fuse as shown 2 Generic Diagram See unit service manual or wiring diagram chart for capacitor ratings 222 LBu LIGHT BLUE 10 1 15 KM 630MAH MWH KM 650MAH MWH KM 900MAH MWH KM 901MAH MWH 1300 03100 MIV A INO ELEM X8 OL0 SLZSVE MOTIA IWA A 3076 xava 300 8010 3 IM nfi o Zot bof Puy y al Pari 90 fy SLAMS emen mU Seat 0 812 m 5 dv 1815 T H mm o bin control with fuse instead of mechanical bin control 2 Generic diagram See unit service manual or wir ing diagram chart for capacitor ratings by model 3 Production after February 09 uses G board and mechanical bin control with no resistors in wiring harness n toire g 191 On lo 5 HOLIMS 5 T fo m X o a yg Ease Y T 8 08 Nd ASH 803 38IM 09 022 902 Note 1 Some production models will include thermostatic 10 1 15 223 Q KM 630MRH KM 650MRH KM 900MRH KM 901MRH
9. THERMAL BR BROWN PROTECTOR N BU BLUE xd S DBU DARK BLUE M GY GRAY m RESISTOR CAP LBU LIGHT BLUE 25MFD 0 i 1 START 89 227 RED ITAP i AIR COOLED BR FAN MOTOR BR WHITE 1 MODEL SRE BR See MOTOR PROTECTOR PROTECTOR GEAR MOTOR e e 124 PP TIS BR R 4 POWER SWITCH HEATER CONTROL BK RELAY door swiTcH PROTECT GEAR MOTOR RELAY PROTECT RELAY LAMP mmi MOTOR AGITATING MOTOR BK DISPENSING MOTOR DBU BR SOLENOID 0 NOISE KILLER Lau TRANS 0 0 FUSE Bk LBU WATER DISPENSE 105V W DISPENSING SWITCH WATER VALVE FUSE 05 BR COM NO K HEATER NO ILLER THERMOSTAT lt FLUSH WATER VALVE aay NOISE KILLER SWITCH BO CONTROL m MAKNG gg WATER VALVE 1 amp 5 KILLER K1 KUH E TU E SS 2 TIMER BOARD IBI s BU Ji8i KILLER PRESSURE SWITCH BK ggg Te R DISPENSING 1 lov WATER CONTROL 0 ICE MAKING BIN CONTROL SWITCH SWITCH LBU 3A1530 011 371 10 1 15 DCM 750BAH OS DCM 750BWH OS WIRE COLOR CODE
10. voti pomo MTJ A A A 8 9 1 1 19 5 3018 n 5 OK ES E M M ze WD 1 SL qp anna nn 3M DNY 0 RI oe ii lo NMOMG 9 300 4010 ali 0 1 fo 6 m 9 ate ny FORESTS s AVI zw OLX Hen nis SAVIU 4 1S3AUVH o fo x x om M A i 70 qu NIB 1 i 5 Www 3n 10 1 15 240 11 ISV 4 0 49 Serial Code UO and before HH KM 1301SRH3 8 mE 8 VM TE He gt lt m me Ec EX D 104190 LL 9 5 Bs aS o ned MS 1v013 adr to le w CD V quM 50580 asd 10 1 15 241 ll KM 1301SRH3 Serial Code U1 and after eal Goa E Big st 2
11. eur JOVEN 19 U Jeurens 02 4 5 Addns 100 eqni 1110002 5 yuel 19M Jojeiode 3 10 1 15 119 __ e UoISuedx3 f UNMS 12014 Jojo TITIO o o aun 3612429 d tag oo eo 1055940 SoG S SORS 3 j ON 520 P LN 93 68 J9peoH 3E mei uonons Jojsieur H 5 5 mea amp _ 0 oje3odeA3 Jesuepuo adiq JE M _ mmm SAEA jeje 195190155 10 1 15 120 92991 y 029 SI ejep 1 55 44 Ove 906 591 0 0 0 6c 0 8 00 0 ooz 191 0c Sc LT EE vE 6v
12. 308 14911 MOTHA 11014 3118 1380W 031002 AINO o AvU JONVUO TROT WEE 59005 JLIHM ORR NMOUE W 300 4010 5 rS Tow NS 0 12 IE Eu tais 4 lo fo t to 70606 So go de 19 8 asl 0499 D 5 5 bo lt 0 j Ms NOH amp i jd M te vo reeg lo 1 Y i ens 013140 80108 03 09 ayin 20199889 LT 71041407 NIG WOS OEZ 10 1 15 215 88 108MFD start capacitor and no run ca instead of thermostatic bin control with fuse pacitor as shown 2 Generic Diagram KM 630MAH E Has Note 1 Some models use mechanical bin control KM 320MAH MWH KM 461MAH MWH KM 501MAH MWH KM 515MAH MWH KM 600MAH 1 les e er gt lt el eats oe 151 i 1 9 oj 19 000000 lt 5 ee I m Ez 5 t 2 gt 2o BIN CONTROL 5 re al gs a STA Q t m 8 o ge
13. ADH 21 uedo shou m AMG AMA 1 AMA pam E AMA senunuoo sezib1ouo A11 0 6 AMH dwog 41 0 senumnuoo pop ASH 09S 01 10 2 senunuoo HW rem uL pezib1eue YNWA 9as 9 2 2 4 senunuoo dwog 21 Wd Aejap 5 51 x29uo 5 51 peso 5 41 99 05 1 _ 1 01 0 suni ul 1041u09 ulJojsiuuau gt pue 295 40 1901 sdois owp pesn 4201 00 L SW 10 1194 1 22299 9zeaJj 1 Sojnului 2 1
14. jou seop 5 ES 25 1 pue 19391 14 298 06 spuooes 2 104 suado eui sseid 558440 01 14 seso S N ueuw jejes 9 o 2 4 1215 221 2 U9IIMS Melseu 9 INOH Z jeuondo ees eouenbes 4nou zL 404 dip 18 si sunoy ejnuiui 01 J 1 ured 2 jeuondo 7 p pue yeys 4 10sues 28 5 4 10 1 15 senuguoo senuguoo W9 senunuoo AM senunuoo SI Sd senuguoo dwog senuguoo dwog uo senuguoo HO AM AM uo sesop 5 4 senuguoo W9 senumguoo SINS 29 06 yo 14 295 06 peueis 14 W9 Jo AM senuguoo AM AM dwog uo HOM HOM uo YOM Jo yo 564 pepeeoxe 14 yo AM pasoj 5 4 40 6 41 uo SINS AM s 4n yo IND yo dwog uedo s 4n 47 uedo s 4n uo dwog 6 41
15. D YOLSIWYJHL 5 0 081802 8 A9 4 HOLIMS Oc 30055 HJLIMS dv 18915 31815 N3349 9 ama 1 9 97 7300W 031002 MOTIBA 1310 3118 d AVD AD 39 40 0 035 DV 18 8 ALIHM M 039 88 3002 80102 EIZ 49014 1 09 61 1055949109 High Pressure Switch Air Cooled Model Water Cooled Model 384228 PSIG 284 21 8 PSIG 4124218 PSIG Cut out Cutin 327 21 8 PSIG 10 1 15 218 L DKM 500BAH CONTROL BOARD BN CONTROL VALVE R MAGNETIC CONTACTOR 8 E COLOR CODE BR BROWN W BK R RED 0 ORANE GY GRAY P OBU DARK BLUE Y MET Y YELLOW LBU LGHT BLUE CR REEN Note DKM 500BAH units with serial UxxxxxA and before have a single winding pump motor without a capacitor 189 227MFD start and 25MFD run capacitor 219 10 1 15 KMD 530M H KMD 460MAH MWH 100
16. 1 1838 11 6 10 1959 Y SA Juin 1035919109 Jejew MO pepeeu se uos zeo Aq sejejedo 19e M 7295 seziDjeue 1285 29S 06 HEJS pue p z 291 suejs 10559491105 jojul JoMod uo zx eje1 josseJduioo spes 1 yoe g 10 Jeoc sesop YMS jeo 4 doy SI 193e M t 4 YOUMS JaMOg 391 UI YAMS spuooes 9 06 54 J9 E dN LUVLS b L0 L6SG Vt 10 0 60 2 10 pyepuejs eyg e uenbes Jaye 4 10 1 15 287 10 1 15 1 deis 0109 dn uejs 1 BU Kejal 1 JO pue uwop inus pleoquo p 9 4 seziBieue J9 EAA suedo pezi amp ueue ep kejas 04409 101959 peJojseJ 187E M sdojs ue 10 0 sdojs JosseJduio Buuejue OU Y
17. soueng eur uonong 529 young ainsseid UBiH udo HOL YS uosuedx3 dig YOUMS S89 10H 1eurens Cony epis uonong eur pinbry senen eowies eur Jojo URL soyesodeng eye eqni Addng jeje 10 1 15 111 KMS 830MLH w SRK8H Jojejnuinooy onejsouueu 10 dung 10 V iy jno duing 1 dund No Xo oum eur
18. 2 4 dwa quaiquiy sod 541 0 82 2 2 199 09 062 802 98e3oA VIVA 39NVIAOd33d 769 ajoway 10559494109 8101 HSIALO9L INM 8282 BY si eJnssaJd 82824 301 310 94155944 apis 94155944 1S9AJeEH ap A5 92994 7901 1071 8611 8971 8971 LOST c 06 test 60 sost 8551 epet pest 9551 cyst esst 12 0 541 TIST LOST 6LET LYST ESST 1551 SST 7951 1551 2971 01 05 ur 44 ajoway JV 13M AV D A bs 8 001 c 06 Lc 08 15 04 5 4 dwa Tz c 04 06 LEYT OT TZ 04 0 HMS 10 uonduinsuo 1 3 sod 54 0776 42 Jed 921 VE TI 8 21 VI 7T VST 1055919409 8 jezo ASTT 404 1 09 022 807 8 Ajddns VLVG H SL09L IAM 10 1 15
19. Gear Motor Internal Auger Flaker Sequence of Operation DCM Sequence of Operation Flaker Timer Flaker Fill Flaker Sequence Flow Chart F A Board Sequence Flow Chart DCM Sequence Flow Chart F A Board DCM Flow Chart Component Checks Dual Float Gear Motor SealBolts L Auger Bearings Mechanical 5 Water 5 Auger Inspection Bearing Replacement F DCM Production Diagnostic Tips Water 2 Electrical Refrigeration Evaporator frost Maintenance Preventative Maintenance Cleaning Sanitizing Procedures 10 1 15 Flake
20. S0 05 00 L TWA 404 6 LSC VWI AEOPTASY puejodog HV800 INDG 9972014 38 161 51140 uuo WAS VAT Med PPO ees peo Buiuuny v Ts eouejsisey uns YMY jueiquie Japun euojsjeeuM uy peJnseeui si exuejsisey 74 06 ueedoun3 3 eouejsisey HES YMS esn esn 10104 3007 eseoyueJo seu uoiuw JosseJduloo 20 esn 0553 4 109 ejeq 2214499 10 1 15 266 ma rene TT eme sem ee 011 TWA 404 961 68 Pue odo 10 0069 V 0 1001 4 011 404 GIZ VVO ATISSSU puepdo 10 h81 Vb 008 4 4 011 TWA 104 650 507 Is VVO ATI EPSU Puedo 10 00E7Vs mos q O 4V 80061 00801 404 LT XTOLAN 10 S81PVP 0JHV80EC HI 92 70 4 98164 YMS VNT suonipuoo juerquie Japun euojsjeauM uy si eoueuuojed ees ZU 06 ueedoun3 3
21. gt n 5 wat Y ar e SRK SINGLE PHASE START RELAY H 8 43 8 y zxz eee E dig s5sZg2zu E gt BK Discharge Line Thermostat Cut out Cut in 266 9 130 C 5 C 239 F 9 F 115 C 5 C yf MAGNETIC CONTACTOR 7 230 SRK 3 PHASE BK 10 1 15 X KM 900MRH3 KM 901MRH3 x Eg eam lt 58555 522 loool 99999999 5 ao 2 5 eT 4 e CRANK CASE HEATER FUSE 10 UN BK MAGNETIC CONTACTOR REMOTE C
22. IN HASSOOF 5 102 1 IN HAASOOF I A I U st TV4 HOd LOTT 0 MUS LOE TWO 06 CHVIATOG GTAOH 48 aOd 20 8 10 1 00 1 06 TVA HOd ore Tl 9y9 c 19180 Pueredo 3 HVSIO T 00 I ADI 0 HVIAOO6 ADI 2014 suryo 342 d L TO GWO AMS eoueuuojied ees ZU 06 ueedoun3 08 10 3 peo Buluuny yTy BurpurM uelis esn 19410 esn lt Seles H suonipuoo uaque euojsjeeuM si eouejsises eouejsises uns YAY 10104 4907 Jejeeu eseoxueJo seu YOIUM 20 esn spun HOSS3HdlNOD Teel s 081 1 Teel s Teel s Teel s Teel s Teens 9 V V CIZA 404 404 404 404 404 TVd 404 178 0 404 suu o ed t 65870 9urpoj sor O T SAL APALTSO Pueredo r0 98tbVt HASO0SC ADI c9 9ST 9ST 156 ees peo B
23. Water Tank Pump Motor SRK 12H 3 Condenser Q Fans d Headmaster E Receiver Check Valve Hot Gas Valve High Pressure Switch Strainer Liquid Line Valve Strainer Discharge Line Thermostat Discharge Line Accumulator Compressor 113 10 1 15 KMS 1230MLH w SRK13H KMS 1400MLH w SRK14H KMS 1401MLH amp J w SRK14H amp J 3 uoisuedx3 105594909 Joyeinuinooy 49949 4 eur X 29 10H YOUMS 0 juens M eunsseJg T ur 2 ejgisn Jj N 4 4 41ND SO 4 Joules i i NT Sec 9A EA 2 AT 7 4 N S HYV MHS JOVEN c V V V
24. Tc c 0 06 807 OL Tc OS OZ HMM 40 sod 0 sq epAo 4 9 uononpoud v9 s VO S VE S 4 3 v9 v9 9 uv 10sseJduio5 eSejeduuy eor 40 1 09 022 802 8 Ajddns INOS9 INM 10 1 15 153 92994 y 5 9 155944 1S9AJeH 828944 EOL 310 59 59 09 85 06 Long 19 09 8S 66 95 66 SG es ot 05 lt 96 987 22 08 TZE STE o6z 657 297 652 757 9 z ot 05 6 67 QT Eme 67 67 g g a a sura g g L 6 ot 05 Ob 8 SE 76 06 8 LE vt ais 67 ot 05 60 95 905 86 106 56 105 96 019 0L 209 019 029 59 ot 05 uononpoJd AV AV AV AV 8 00T 06 45 08 04 2 4 dwa sod 0 59 2 2 198 231 Ajddns 39NVIAHO 3d VZ S 9 uv 1055919409 jezo 99 10 1 15 154 92991 y SAINUILU 51 eJnssaJd 1s9AJeH
25. VS TT tv 10559 05 e8eJaduuy 2701 INOSE TIAM IQON 10 1 15 134 9299 BY si aJnssaJd 1S9AJeH 828344 9p 2701 310 95 c9 9 65 56 66 86 55 9S ZS SG 55 SS c 06 uong 55 9S 15 55 SS 94 tS 56 05 0 aunssaid 15 05 05 55 8t 0T 0S S8c SSE v9E 847 EEE 64c OTE TTE 586 186 c 06 apis 414 STE 8 04 OTE 0 lt 887 S82 692 196 ESZ 0 aunssaJd cL v8c 692 196 ESZ 692 176 9894 Ovc 8 8cc 07 05 35 979943 sve 541 5 pz 4 19 0 1 AV 86 001 827 12 26 04 06 6 77 0 2 06 04 4 HAN 10 uonduinsuo sod 096 59 amp 194 uononpoug 921 vL9 4 3 YSTI VC ET HIY v18 10559494109 10 Ajddns H TION V1VG 10 1 15 135 09 6t 9v OSC 0 6c 9c STE ELE viv 1 3 8 00T epo 92994 941 0294 SI e3ep aJnssaJd c9 SG 6t 266 ove 0c 0c vc Ot 6 LST 9 Jy 06
26. eqn Keds H NOOFPL SINM 10 1 15 114 T KM 1300MAH MWH KM 1340MAH MWH Hegulating Valve Condenser Spray Tube Line Valve Strainer Hot Gas Valve Bar SCORE N Cleaning Valve Check Valve Pressure Switch Hich Float Switch a Access Discharge Line _ Compressor Access Vaive Refrigerant Circuit Water Circuit Expansion Valve 115 10 1 15 U KM 1300SAH 3 SWH 3 KM 1301SAH 3 SAH E SWH 3 KM 1400SWH M 3 KM 1600SAWH 3 KM 1601SAH 3 SWH 3 KMH 2000SWH 3 Water Regulating Valve 2 9 So 9 2 A Expansion Valves N Water Supply Inlet Water Val 2 Spray Tubes 116 10 1 15 V KM 1300MRH KM 1340MRH KM 1600MRH 3 KM 1601MRH 3 Condensing Pressure Regulator Water Valve Check Valve Refrigerant Circuit Water Circuit KM 1300SRH 3 KM 1301SRH 3 KM 1600SRH 3 KM 1601SRH 3 KMH 2000SRH 3 Condenser Water Supply Inlet Water Valve H Service Valve Headmaster Drier Spray Tubes Valve Fusible
27. 183 16005 H3 sse rne 184 1601 sse rene 185 KM 1601MRH 9 iiec ns pesa td 186 1601 5 Elie terne eka 187 16015 188 18005 iiie ete reden ren 189 18005 190 19005 4 22 191 19005 3 2 4 2 1 192 20005 3 2 193 20005 194 KMS 2000MLH 4 SRK 20H 4 3 195 21005 H3 iacuit 196 24005 53 11 197 25008 ice en tec ens 198 10 Pin Board 199 Wiring Diagram Reference 200 Remote Condenser Capacitor Chart 206 Mechanical Bin Control w Resistor Harness 207 KM Wiring 252 F DCM Products 253 255 Warranty Information REGISUAUOM 256 Coverage sce hui colds 256 F DCM Installation General 5 257 Plumbing Requirements 257 pre 258 Flow Rates 259
28. HMaSSz W HvgsSe IWM JO OL pue aeu pesn Sdois MES 22294 9z99JJ uj8ue ay 10 9 AMH 9 242 97994 s uu 9 jseAJeu 2 151 Jo pug 9 2 9 29914 sdejs 2 2 uoneJedo jueuoduio pue eyg e2uenbes HM amp aSSZ INM pue HYASSZ LSZ NM surap pue jnodumd 54048 dumd 151 101 19 ALON pf 03 5 pue 58015 405591102 uado 51 5 44 pezibieus ap AT pazibaua ap W4 uado 5 4 gt 5015 01293019 7295 02 01 4615 5 20 uayy abus p Md n Jas ZJOjpaziBiaua ap Wd Ad 8101 10 UA S S pazibiaua W4 9 6 4 SaydeaL pazibieua pazibiaua ADH 0 2 4 9 0 sdoap Wd aumjeaduiay 1ojstuuau pan6ieus ywa 9999 5 2 sonunuoo 10 5 1 L pazibioua ap AM 1 dwo gt sauidxa AM
29. 05 086 8901 SOTT ELIT c 06 THTT 9TT 9071 LSCT 12 04 541 1571 9971 9671 05 821109 ve 9joulay 9joulay 2 3 sqi 3y dui9 8 001 9 4 dwa juaiquiy 026 2 26 0 06 899 OT TZ 05 0 Jasuapuo HMS 10 uonduinsuo sod QtvT 91 T OE 9 22 uononpoud 921 VOT 6 V9 7T tv 10559294109 ASTT 20 09 06 802 SO00 L INM IQON 10 1 15 170 Spo 92994 941 SI 91155944 85 SS 95 cs vs SS vs TS cs 15 cS 6v 6 15 6t 8v 15 SOE SOE SLC VLC L8C 156 9vc LLC VLC 0 0 0 cec cc T 0 2 LE Tv EE LE 6 0T 2601 9001 SYTT SECT 9cT 6 lt 1 cScT Occ S9cT 66cT ajoway Jaen ajoway ajoway 322244 2121 E301 310 05 05 uonong 15 67 8t 91055914 05 8 Ly 782 962 17 0 2 657 91155944 9 35 Cv E 923944 06 0 ESTIT 7921 5971 541 7521 OZET sInou vc
30. sod 09 sq OT 21 12 Jed 231 8 00T siqpz e5 195 1c c 04 06 lt 6 5 6 ASTT 10 09 055 805 8 Ajddns 0 ve OT TZ 05 0 768 VES 756 Vs 6 uv 2 dwa HMIN 40 lt v8 20559494109 10 WO009 1W 10 1 15 148 10 1 15 BY papsodai si eJnssaJd 15 328214 JWI JAD 2701 310 uoyons aunssaid apis 91055914 9 9944 149 54 sJnou pz d sqi 3y 04 06 siugc Jeo OT TZ 06 0 HMIN 10 uonduinsuo 1 3 sod 08 sq ejAo Jad 821 V 8 V6 8 20559294109 e30 ASTT 10 4 09 062 802 07 HMIAO09 TIAM viva 39NVIAHOHH3d 2 22994 JY SAINUIW si e3ep 1S9AJeH 22994 BWI 2701 310 05 05 6v 77 87 8v 55 vv 8v LV
31. 5590004444 950 123455 1 83 10 1 23 OPEN ICE m c 2avac Li isvact CLOSED DRAIN KI TE PT XI w BK si CONTROL BOARD BIN CONTROL INFRARED us Sof tt SENSOR K5 KT 5VDC 24VAC 41 SWITCH guis Bre sede 7 rote 5 se wo 060 BK BU WIR WIR RT LBU LBU UPPER BK GY Loner FLOAT SWITCH 8 BIN CONTROL 2 MECHANICAL W O w o w o 0 390 2 F 2000MWH C F 2000MRH C 208 230 60 1 3 WIRE WITH NEUTRAL FOR 115V WIRING COLOR CODE BT 6 ORANGE MAGNETIC CONTACTOR LM BROWN P PINK COM JBU BLUE R RED 3Y GRAY 819 STARTER LIGHT BLUE W WHITE LW 2 219 START CAP 8K 189 227 FD bi COMPRESSOR o C BR 021 tala 2 OTO 4 H R BK RUN CAP 40 MFD R THERMAL GEAR MOTOR FUSE PROTECTOR 1 65 MFD PrP BR v 12 W BRI W T VENTILATOR GEAR MOTOR 1 SEATED PROTECTOR RELAY L EVAP HEATER FOR HS 2121 AND 5 2122 AND CUBLET MODELS ONLY
32. as Ss Bex ge s nus ololo ge E 4 S 5 5 Bs 2 oS 2 0 gt ONLY AIR COOLED MODEL 10 1 15 210 766 KM 1301SRH 3019 onvo ngd d AyD 40 0 y v18 M 50 aol ge 12 1 17 17 be DENT Jj SEHE m n lie id wam alam 5 P sm WI C T 4 A 9 2 19 a L Jo 6 fo n f it a eg e X I 300 T DEUS TE nji 5 ks AMT 3 o aji yo TE vk anf sau o um Yo WULAN SM ET 47097062 B02 10 1 15 239 Serial Code U1 and after GG KM 1301SRH LINA 83543040 310830 ba AS OL J yndyno jeuuojsuei
33. 68 12 22 04 06 524 sq 8 aj9A9 Jed 44 T 09 STT 8 Ajddns 42 08 5 2 05 0 v9 9 15 92994 E301 310 0 Vs V0 8 cs 8v Sy 196 LEC 9 Lt 0 6c LC 88 STV ze 06 16 04 01 05 ze 06 16 04 01 05 ze 06 16 04 01 05 ze 06 16 04 01 05 ze 06 16 04 01 05 2 43 dwa uoyons aunssald apis 8 91155914 35 97994 sai sJnou pz uononpoJd sqi 3y 2 4 dwa 1 05 HMIN 10 uonduunsuo 4055 4 2 101 INOLE CINM IQON 10 1 15 136 epo 92991 991 1 9 155914 10 1 15 25 328214 2 9 EOL 310 s d 09 sq 99 2 Jad 231 8 V9 6 V9 OT v9 09 65 SS 85 SS es zs 6v 06 05 95 95 8v zs 9 0L 05 9p 87 9p 17 17 05 965 09 062 OSE 682 9 982 62 6 06
34. REMOTE CONDENSER UNIT BN CONTROL E FAN MOTOR 5 0 2 6 3 GY EH CRANKCASE HEATER SPOUT INDICATOR 0 1 GY CIRCUIT PROTECT RELAY BR 17 8 POWER SWITCH KCN R a 5 RANSFORMER PRESSURE SWITCH FUSE VS BK WATER CONTROL RELAY RIT 180 EE FLUSH 18 Con No SWITCH BK 7 8 0 DBU _ INC FLOAT SWITCH D FLUSH R coy TIMER SPT CONTROL R DU cy GY WATER VALVE p FLUSH WATER VALVE 22221 4 BR ya P 0N Z 3 OF Org m Q K SPOUT Sswid SPOUT CONTROL RELAY t 1 CONTROL TIMER BR BK 343515 01 1 391 10 1 15 F 2000MWH3 C WIRING COLOR CODE AA 208 230 60 3 F 2000MRH3 C 12 13 MAGNETIC CONTACTOR BK BLACK 0 ORANGE LLL BR BROWN P PINK BR B B DBU DARK BLUE RED E GY V VIOLET 210 COMPRESSOR LBU LIGHT BLUE m No TRANSFORMER BK com JBK VOLTA
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37. esst eataa aai 259 General 260 Cubelet on 260 Remote Applications Condenser 261 Use of Non OEM Condensers 261 Remote Lines 262 Line Set Application Chart 262 mE 5 10 1 15 R 404A Refrigerant System Information Flaker DCM Charge Heat Load for amp Cooling Tower Flaker amp DCM Heat Load Chart Component Technical Data Compressor Water Cooled Head Pressure Controls High Pressure Safety Switch Pressure Switch Bin Controls c Flaker Control 5 F A Control Switch 5 F A Board F A Board DCM Control 5 Control 7 0 2 22 Evaporator Barrel 5 Control
38. ierra 151 631 _ e 152 KM 650M El tiit ete 153 650 154 KMD 700M H aiite tenet 155 KMS 750MLH amp SRK 7H 156 KMS 822MLH amp SRK10H suus 157 KMS 830MLH amp SRK8H amp 3 158 KMD 850M irure tocius 159 KM 900M H eee 160 9 i tta deett 161 90 50 162 KMD 900M H aii rere teres 163 164 90 eren teri eet dee 165 KMD 901M Hissesi ear ene ree tutos 166 KMS 1122MLH SRK8H amp 3 167 KMS 1230MLH SRK 13H 168 KM 1300M El eerie date ret ens 169 KM 1300S JH iier rer eerie en 170 KMe 13008S JAS rentem tacet 171 KM 1300S AEEE rer tice 172 KM 13015 E uicit rt olere tee 173 irons 174 KM 13015 bre eerte reduce 175 IKM 1940M te x etis 176 KM 1400SWH M amp 177 KMS 1400MLH SRK 14H 178 KMS 1401MLH SRK 14H 4 3 179 4 10 1 15 KMS 1401MLJ 8 SRK 14J 4 3 180 1600 2 4 181 1600 3 182 16005
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40. 10 295 06 1521 991 10 pue 21 51 295 06 15 jo ujBue sejnuiui 9 5 eum AMH Sojnulul9 159 19 10 19S 01024 91040 114 gt lt sdeis 2 L 3ueuoduio pue H INLOT L 00t L O Z L 0S Z SWM 9 2 2 2 9 2 2 1 72 10 1 15 65 Basic Check Out Procedure E amp H Boards The 10 minute check out procedure is a sequence check that can be used at unit start up or for system diagnosis Using this check out procedure will allow you to diagnose electrical system and component failures in approximately 10 minutes under normal operating conditions of 70 F or warmer air and 50 F or warmer water temperatures Before conducting a 10 minute checkout 1 Check for correct installation and proper supply voltage 2 Adequate water supply and clean evaps and condenser 3 Control board dips 7 amp 8 in correct position As you go through the procedure check to assure the com ponents energize and de energize correctly If not those components and controls are suspect 10 Minute Check Out Procedure 1 Turn power OFF gain access to unit control box 2 Turn power ON place control switch in ICE position Note A 5 second delay occurs due to board sa
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43. CONDENSING UNIT PRESSURE SWITCH CONDENSING PRESSURE REGULATOR RECEIVER TANK CONDENSER FAN MOTOR INSULATION COMPRESSOR WATER CIRCUIT REFRIGERATION CIRCUIT 323 __ ACCESS VALVE 10 1 15 FS 1001MLH C FS 1022MLH C F 1501MLH C U9yIMS ensseJq wo1 LS YMS eJnsseJd Mo17 01005 1055 PRNO YOUMS SON ainssald YBIH 5 gist 7 anen il jug 92 aur uonons ED pinbr BEEN I i SeNEA jeureng PIS UDIH umoq dwind ewe uoisuedx YAMS 12014 Jasuapuog ous 54 10 1 15 324 FD 650MAH C FD 1001MAH C F 1001MAJ C F 1501MAH C Inlet Water Valve a Spout Evaporator Condensate Float Drain Pan Drip Pan Wate
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45. azem E 22 4 sx sqi 8y c 06 Lc 1 08 Tc 0L 2 3 7461 Tc c 04 06 5 9 186 01 7 08 0 gt HAN 10 uonduinsuo 10559444109 eSe1eduuy 6101 INO007 4 10 1 15 358 6c uoyons 6 91155919 6c 992 992 EEZ 997 LTT 997 Occ 992 06 apis 992 EEZ 9c 177 9c Occ 292 12 0 eunsseJd 992 coc EEZ 792 LUZ 297 Occ c9c 01 05 VT VT vt c 06 VT OT VT OT vt 12 0 MNO VT OT VT OT e 0 04 SZZT 0 71 SLET 0571 SEVT SEST SYST OEST ST9T 0597 0291 00271 ZE 06 84 O8ET 6871 6251 0671 0951 0851 0951 Ov9T S89T 0991 Tc OL OTST STST OOST S8ST 5651 0191 62 1 O6ZT 07 05 22 J9jeM 1 3 2 4 sq 3y 8 001 c 06 Lc 08 0 2 Jualquiy siQpc Jeo 5911 07 06 saqpc Jeo SEZ OT TZ 05 04 2 10 uonduinsuo V6 V9 8T v9 s v8 OT 9 V8 OT 09 0 2 802 ASTT 404
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49. EI 2 2 ER ed Bown ene ned iri E 7 5 THERMSTOR FLOAT SW nee o 5 e R R 500075 utes ONLY AIR COOLED MODEL x FUSE BIN CONTROL DO GND 208 230 60 3 L 9 R VOLTAGE TAP SN TRANSFORMER qan imm QV 115 237 10 1 15 KM 1301SAH3 KM 1301SWH3 EE Serial Code U1 and after 238 8 5 gt 52 g EE 55 ec lt lt gt 252 555 eo 2 56 5 gu s E 2 gf cm EI gt om lores 5 E ex 22 Bem pe es EI 16 155 9911199
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52. no es amp 5 5 25 5 050 gt ONLY REMOTE AIR COOLED MODEL 10 1 15 55 KMS Wiring Harness Connections go ATI Ti aNd Gee ias gl c Ke eo T di 1729 M 40129J yun 4912951 SWA p nbil A17 191081009 104 ASH GE ouo2 g93 M QO QO OH e 6 1 yuld q ueaJ uo UMOIQ Hg 10105 M eee pe1oeuuoo pjalj 2 Note 50 foot long wiring harness is provided and precon nected to the SRK condensers It must be properly routed to the MLH unit and connected per the field connections on this illustration 10 1 15 252 TM TECH SPEC S TECHNICIAN S HANDBOOK R 134A amp R 404A H Models Flaker DOM amp Dispenser Section Hoshizaki Technical Support 618 Highway 74 South Peachtree City Georgia 30269 Phone 770 487 2331 Fax 770 487 3360 253 10 1 15 TECH SPEC S Technician s Handbook 480050C This section of
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55. EZ OL 0 S09 669 SZS 589 ZZL TOZ TLL v8L 867 198 748 016 ze 06 89 299 ETZ 051 8v 208 908 veg 206 5 8 156 tz oz 54 659 coL 149 94 791 YES 828 1 8 066 068 076 0 06 ajoway JV JV JV of dwal 8 001 zt 06 2 08 12 0 29 4 juaiquiy 9 267 TZ ZE 07 06 siypz leD 0 OT TZ 05 0 2 10 uondunsuo 6ST VC VT 1 3 8 A ddns VC TI YZST 10559 05 2401 INTOOT d 10 1 15 349 Ot SE VE 6 96 VE 96 SE ze 06 enone 6 SE LE vE 8 VE SE vE 4 6 SE Ot LE VE LE SE SE VE 05 S6Z 695 STE 997 195 19 695 595 062 795 oez 72 06 585 895 SOE 957 992 992 595 Scc 595 cc 12 04 9 7 897 S6Z 9 5 992 592 SEC 595 795 ozz 595 etz 01 05 8c Sc 11 LC EZ vc 97 vc EZ 6T ZE 06 8z vc 9 LC Sc EZ TZ 8t 12 0 8c vc Sc 97 44 Sc 0c EZ 8T 0 05 SG 009 SZS 059 199 579 024 414 TEL 161 OLL
56. PIS 787 o8z 082 TTE 082 9 7 87 787 082 9 7 082 0 7 082 08 0T 05 0 0 0 0 97 vc 67 9 06 0 0 0 0 17 0L LL 97 17 87 S E OE OT 05 Sc 8c vc c EZ Sc 44 EZ ous j 44 97 44 97 vc 44 0L E Tc 44 0c 0c 0c ot 05 YSE ZOE v8 8 85 ESE I8 ze 06 607 107 9 C 196 80 vov tz oz 590 LTY 06 877 vov 677 ot os 500472 uononpoJd AV AV AV 22 53 sqi 3y 8 001 c 06 45 08 Tc 0L 2 4 juaiquiy 514 120 vT9 Tc c 07 06 siupz Je9 556 OT TZ 06 0 HMIN 10 18 105594909 6101 H IQON epo 92994 941 51 sJnssaJd 35 92984 WI 921 E301 310 sod ZEY sq 6 91210 ad 1 09 lt Ajddng 8 58 39NVIAHOd33d v9 8 VO OT uiv 65 19 85 09 15 85 15 95 c 06 15 65 15 65 95 15 95 SS TOI OE inesi 95 SG 95 5 SG 75 SG ES 05 18 GSE 887 c 06 apis ysl vic STE 792 01 in LL 782 01 05 0 0 c 06 0 02 1
57. Refrigerant Circuit Water Circuit Expansion Valve Note KMD 700 MAH MWH has 1 expansion valve 109 10 1 15 N KM 900MRH 3 KM 901MRH 3 Condenser Headmaster Spray Tubes Access Inlet Water Valve Valve Water Supply Receiver Tank High Pressure Switch Strainer Evaporator Hot Gas Valve Thermistor Liquid Linc I Cleaning Valve ve is Valves Access Valve M Float Switch Access Valve ischarge Line ration Circuit Compressor Y I asion Valves Check Valve Note KM 900MRH 3 has 1 expansion valve KMD 850MRH KMD 901MRH Condensing Pressure Regulator Drain Water Circuit Condenser Unit Receiver Tank Connecting Pipe Spray Tube Access Valve Fusible Plug Strainer Water Valve Water Evaporator Hot Gas Valve Supply Cleaning Insulation Tube Check Valve Thermistor Line Valve Suction Line Fioat Switch Drain Valve Pressure Switch Hign Discharge Line Pump Motor Freeze Pump Out Compressor Access Valve Refrigerant Circuit Water Circuit Expansion Vaive 110 10 1 15 KMS 750MLH w SRK7H KMS 822MLH w SRK 10H Jossaiduiog eui
58. SUCTION LINE W BU WHITE BLUE v W W O WHITE ORANGE WIR WHITE RED BK wl BK BK EVAPORATOR HEATER CUBLET MODELI ak BK 00 an W fe F wow 0 3 Ti BK BIO FAN 1 CABINET FAN MOTOR 7 w o w o 3 1 ce F 200IMLH MODEL _ i 1 g We COMPRESSOR CONTROL RELAY GEAR MOTOR INTERNAL Cl PROTECTOR FUSE GY ROA p lo 5 0 W 0 0 1 115 Bk w we 4 WR R TRANSFORMER FUSE PAVAC LBU LBU LBU LBU LBU 4 DRAIN WR INLET WATER 54 VALVE c VALVE BK BK Y W BU 0 0 BK 4 WIR WR WIR WIR CONTROL SWITCH 5 c BK 1 2345678910 23 OPEN ICE 1 SACO CLOSED DRAIN 4 F 2001MLH M y LBU MODEL itas X p W BK 1 BIN CONTROL i 115 BIN CONTRI S CONTROL BOARD W BK SENSOR cle ers press BR KT Hs 24vAC 9VDC T Ty SWITCH 1 506 9X6 slo W O 1 anges 816524232 1 876543 21 0 0 K 1 eo BU 8 WIR WIR R 1 1 LBU 180 a 4 UPPER GY GY Lower FLOAT SWITCH lt lt BIN CONTROL 2 MECHANICAL ua ECHANICAL so wo SI DIP SWITCH SETTING 5 F 1001MLJCC OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF F 2001MLH ON OFF OFF OFF OFF OF
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60. 2136 to lo uvod 213 KM 280MAH MWH 0L0 EL7CVE T3004 03100 AINO T3004 03100 AINO ae et umnoj 1 1 Wid c 1D 19 9 009 DND 0 G _ 4 K A m 0 A ne x regi 9 NOYE 0 ME is S 300 9010 Sl E au Pu d fou a re 0 Lor 4 T d 2 lo E Eol E 9 Lott lop ato be 1994 Im VOL DH QW 3515 1138 __ 708109 NIG 10 1 15 manual or wiring diagram chart for capacitor 214 instead of thermostatic bin control with fuse ratings by model as shown 2 Generic Diagram See unit service Note 1 Some models use mechanical bin control KM 280MAH E KM 500MAH E KM 630MAH E
61. V6 tv 10559 05 101 S3rHVINO 9 INM IQON VIVA 10 1 15 epo 979941 y 5 1 eJnsSaJd 159 92994 9uJl 210 310 8 79 Tv vs 91155944 9 LE Ly 62 SSZ LSE apis 31 6 vez Tec vec ESZ CE NE oum 9p vc 44 12 912914 02 vc 6T 6T oz 98 ZES Oct 9 5 819 16 591 lt 09 119 EvS sanoy Vc uononpoJd 193 8 001 OSL TZ ZE 04 06 52 89 87 OL Tc OS OL esuapuo HAN 104 uonduinsuo 1 sod ogr 591 6 9 2 Jad 9 8 4 VI 9 V8 9 79 uv 10559494109 2701 ASTT 404 T 09 0EZ 807 Ajddns H INLE9 TINM T3QONN 3 303439 25 9299 y papJo2ei 51 aJnssaJd 1s9AJeH 3282344 9 2A 6101 310 e uoyons 91055919 2 apis 91155914 SEZ E 929914 euin 12 c9v 905 EZS 966 SS 715 165 591 86 165 109 419 SANOY ve sqi 3 2 4 dwa
62. YUMS 19MOg dnyeis 10 1 15 293 19JUl AM uej uos s4n pezibjeua m Mens a TOUN uleip 1 ul 5 IN j ureap 1959 IGZIL Ul L 7 129301d 1 culos p z 61 u P WD pazibjaua ap W4 WD utq 5g UIW OL pezibiaua dwo gt 14 pu 6 7 dip 15 5 Jayewad t 01 ep abing 221 sejeniu 18 1 12 5 zL Ut L pebebuesip ajpped 101enj e 28 peso g 2 sjueuoduuo 41 0 ajpped J01enj2e 28 3 DAD 221 295 01019 110152479 1013409 1401594 1942495 SO H 8LS7 IW2G yeys 4 e uenbes 5 4 10 1 15 294 Component Checkout Dual Float Switch Hoshizaki float switch part number 435490 01 can be used as a universal replacement on any Hoshizaki or model in the field excluding the C
63. iB aC 79 MOTOR rm mus 1 PROTECTOR c3 W BK CONTROL 0 SWHp 4 7 STARTER e e e PRESSURE 0 WIR SWITCH 4 7 8 E es Ew Y ost he 4 VALVE 1 4 WO D RELAY2G 991190 W BR W BK BR Wo Y opens 2 2 udin FLOA ve SWITCH Oe BK RELAYXE CONTROLLER CONTROL BOARD WATER VALVE W BU DBU 377 10 1 15 DA BLACK UNAINUL BR BROWN P 115 120 60 1 DBU DARK BLUE R RED GRAY V VIOLET N LBU LIGHT BLUE W WHITE POWER BR Y YELLOW SWITCH START CAP SRR _ 23 292 HED DBU i 2 RUN 51 15 MFD MOT PROTECTOR 53 180 e TRANS 470V gt 2000 FUSE LBU CONTROL WATER VA FLUSH SWITCH 0 io 6 85 R ii FLUSH TIMER BR RELAY BR FLUSH WATER VALVE m O 04 6 7 FLOAT SWITCH CIRCUIT PROTECT RELAY PESE ie BR GEAR MOTOR PROTECT RELAY m T9 sg 161 83 5 97 R Zi ONTROL TIMER 0 ES 58
64. 1 eS8ejeduuy 6101 S0091 INM lt 6 YTT v6 5 6 VIVO ep o 92994 991 034 pap40294 SI 55 15 928244 WI 921 E301 310 6 c 06 lv lv LE 12 07 2155814 LE LE 07 06 182 TEZ c 06 5 YSZ STZ 12 07 2155214 LTZ ooz 0T 05 ec ze 06 8 9 12 07 aun L E S 0T 0S 0 97 ze 06 92994 vc 12 07 aun vc EZ 0T 05 171 6 ze 06 541 8651 12 04 sanoy pz 6vvT 80ST OT 0S ajoway ajoway ajoway ajoway vsvx Sq 3y 8 001 c 06 45 08 04 2 3 dwa sod Sq 8 62 Jed 921 9 8 9 11 ASTT 40 09 0 8 Ajddns 20559494109 101 H8IALO9L INM 10 1 15 185 epo 97994 941 5 0294 S aJnssaJd ajoway 8 001 ze 06 ajoway 17108 10 1 15 1S9AJeH 22994 BWI 2 9 0 310 ajoway Tc 0L uoyons aunssald 91055914 35 P J 97994 186 591 51 0 pz uononpoJd sqi 8y
65. BN Discharge Line Compressor Pump Moto Float Switcl Access Valve F KM 280MAH MWH KM 280MAH E MWH E KM 320MAH MWH E High Pressure Switch Supply Cleaning Valve Strainer Hot Gas Discharge Line LL Refrigerant Circuit Expansion Valve Water Circuit Water Regulating Condenser Valve Note E models do not have a cleaning valve Drain dp gt Water Supply 10 1 15 G KMD 410MAH MWH Water Regulating Condenser Valve High Pressure Condenser Switch Harvest Water Valve Spray Tube Cleaning Valve Freeze Water Evaporator Valve Drier Insulation Tube Suction Line Access Valve Strainer Hot Gas Valve oO Cube Guide Water Tank 1 Discharge Deflector hd oa Drain Thermistor Compressor Switch _ v Access Valve Refrigerant Circuit Water Circuit Expansion Valve 104 10 1 15 H KMD 450MAH MWH KMD 460MAH MWH KMD 530MAH MWH Water Regulating Condenser Water Supply Condenser High Pressure Switch Insulation Tube Thermistor Heat Exchanger Strainer Pump Motor Valve F
66. 10 1 15 50 4 668 0 541 1932052 10 6605 0 9877 10 9 E 51 10 6L0SVP 710 POOVS 10 ZLOPVP 10 8105 0 51 T S VVO HIOErSU Ot 9cLIVY 8 00VS L0 9CLTVT 10 00 IO CLCTVY 10 5915 0972044 uro AMA 540 AMS VAT Joquinu yed 10 8 jueiquie sapun euojsjeeuM peJnseau si ZU 06 ueedoun3 06 10 3 Joyed ees peo1 v TH eouejsisey HEIS YMS esn sJeujo esn uM sjepojN seues H eouejsises uny YMY eBeieduy Jojo 07 YHT Jojeou aseoyues seu Josse1duloo 20 esn syun NO 1 3170201 1494 SLNLILSENS 303 MOT38 NOLLVINHOHNI ISN SENS 405534409 4 VLVd ALNLILSANS 10 1 15 51 Water Cooled Head Pressure Controls An adjustable Pressure Modulated water regulating valve is installed on the water cooled condenser outlet This is unique to Hoshizaki water cooled products and maintains cleaner operation and instant cooling at start up A V46 Johnson Controls Penn valve is used The Penn valve is ide
67. 531015 9p 92 pue 50 2 ueuM IT spuoras 06 Suejs 14 729506 spunos uuejedaaq Y gt 14 28506 2 W9 W4 pazibieua pezibjeua AM pazibiaua udW5 295 06 534845 14 pazibieua W9 uado 5 1 pazibieue W4 uedo 540 pazibieua duio5 spuoras 06 4 1 uonejado jaye seog 1 wus LS spuodas Z 10 sezibjeue 24 2994 _ Jeuondo 3461599 2 5 1 295 e uanbes 2 gt zL Ut L 104 51 ZL UI L e s eui SO H 81SZ W2Q pue lt 9502 54 pazibiaua AM spunos deaq 14 79506 lt 143 AM sejeuluJa 14 pesop 540 WO p so 5 1 5 gt 06 5 4 sues WD uonnq 35IAH3S ay 55244 ssed q 4 e z 9p 5 cL ut L Y jeu 4 aduanbas ouo 4 285 06 531845 14 pezibieue AM q31 30 83MOd pasop YMS 4321 Q21IMS 01300
68. 566 887 apis 48 997 S8c 082 a M 6vc c8c 082 ele lela von 0 vt vt LV 8 322214 6 2 vt t He 817 ELV m 687 875 591 795 065 pz ajoway ajoway ajoway 1 1 2 4 00T 2 3 544 169 966 0 06 5 56 0 2 06 0 4 SU PUOJ HMIN 104 uonduunsuo 1348M sod oz4 59 91212 Jed 221 V9 5 6 v9 vs 9 v9 vs L Jv 205 949 4109 10 ASTT 10 1 09 0 2 80c IN0 9 INM IQON V1VG 10 1 15 150 9799411 991 SI 9 155914 S MEH 32824 2 9 EOL 310 vS ES cS uonons cS cS TS TS aunssadd TS TS 05 05 OLE 958 60 apis 1273 Ove 8 162 9155914 16 162 982 0 2 8 6 5 8 6 eui LS TS Lv ev 92994 vb Ot GE LE GE GE LSE 907 59 025 591 Ltv 097 ETS 9 5 pz 896 9 5 85 779 AV AV AV AV vsi x sqi 3y 8 007 c 06 Lc 1 08 Tc 0L 10 1 15 151 sod Qz4 sq aj9A0 Jad 44 221 T 0s Otc ozc
69. AM pazibiaua Wd 2299 ypaup 5 4 Aejap IMS 4 5 3 lt lt posop 5 3 TE Ee 5 T T 095 0610 0601 OF dmuejs 894 uus dip v dip IS 104405 du 283 04 01 10 Suni 0402 up aW 03402 081 dip 15 22 4 04 gt Ut JojstuJau gt 10 9045 Wd QZ suus 013 6 dip 15 1905 S dip 15 jo Jeu 2299 IUI ezeaJj J9A9U2IUM 8 9 YUMS 15 29 0610 OE OL Kaana 10 195 sejnulu 6 94 929944 0 5 Jo eui 10 9 AM PAD 7 sdays gt gt gt gt H 8092 19 51021 02 eo 4 51021 02 AT 5 47 BAJEA 1S9AJEU AMH II AMA 100 HINA UIEJp AMG JossaJduioo dwog ADH 1210 pue 58015 10ssa4duioo uado s 5 47 JI
70. NOTE Dip switch settings should remain on the factory set ting for proper operation with exception to switches 1 2 amp 3 hich adjust the bin control shut down ice level 276 10 1 15 F A Control Board Label The POWER OK LED indicates proper control voltage and will remain on unless a control voltage problem occurs Board part 242649 01 Energized Sequence Step ad Com ponent Min Max Fill Cycle WTRIN E Ice Purge Cycle GM GM FM FMR 5 min 5 min Freeze Cycle with refill GM WTRIN refill GM Comp On until UFS closes COMP FM FMR LLV Alarm sounds after SLV WV refill 90 sec Drain Cycle FLUSH Drain 2 sec 10 min The built in alarm safeties shut down the unit No of Beeps every 5 sec Type of Alarm Reset Options Low Water Safety UFS open gt 90 seconds after WV energized Automatic reset once water supply is restored and UFS closes Control Switch In DRAIN position longer than 15 minutes High Pressure Switch First and second activation in 1 hour Automatic reset once the control switch is moved to the ICE position Automatic reset once pressure drops below the high pressure threshold and the high pressure switch closes High Pressure Switch Third activation in 1 hour Call for service To avoid possible catastrophic failure it is recommended to leave the icemaker off until this alarm is resolved Manual reset
71. 10 SO0087 INM sod Q9TZ 541 9 ejo o 921 09 0 Z 807 8 Ajddns V ST aqjoway 39NVIAHOHH3d 10 1 15 198 HZHHWJ 9 ISHAWVH 6 uduogproq onuo 0 STI hi ADH 11 Cua 5 Z HZHHWd jour ue OUT OVA STI 2 2 E VAENE ozoorj 8 19M OVA STI pex Y 110 9 o4 dung 01 OVA STI Cng G 9 SABA OOVA STI 9 preog 10109 0 OVA 11 HZHTdWI 9 ISHAWVH 203281000 10901 OVA STI 8 prog 104109 0 11 iagrams D iring 10 1 15 199 sisouDeip 40 e se asp sjno e jueuoduioo pue y swous SIUJ 310N SQHVOS 9 8 3 HOLO3NNOO Nid 01 some cases because they can represent several models Hoshizaki provides a specific wiring label on every unit for electrical diagnosis You will also find wiring diagrams in the service manual by model See the following wiring diagram The wiring diagrams on the following pages are generic in chart for your model and capacitor information W s ewN o a 310499 leues HWW HVIALSE T
72. 109 900 901 IN is 110 0 850 901 110 KMS 750MLH w SRK 7H KMS 822MLH 5 10 111 KMS 830MLH 5 8 Quis 112 KMS 1122MLH 12 113 KMS 1230MLH w SRK 13H KMS 1400MLH w SRK 14H KMS 1401MLH amp J w SRK 14H amp J 3 114 1300 1340 115 KM 1300 1301SAH 3 SWH 3 KM 1400SWH M 3 KM 1600SWH 3 KM 1601SWH 3 20005 3 116 1300 1340 1600 1601 117 KM 1300 1301 1600 1601SRH 3 20005 117 KM 1800 1900SAH 3 SWH 3 KM 2000SWH3 KM 2100S8WH3 118 KMS 2000MLH w SRK 20H 119 1800 1900 2000 2100 2400 25005 5 3 2 22 eie 120 99 ERES 10 1 15 AM 50BAE Capillary Tube Accumulator Spray Assembly Water Tank Ice Storage Bin Heat Exchanger Hot Gas Valve Compressor Water Circuit KM 61BAH KM 101BAH Refrigeration Circuit Water Inlet Pump Motor Flo
73. 72 06 809 969 065 289 207 969 Sv 04 797 S28 884 698 tz oz 64 629 159 919 969 00 00 TLL 004 L6L ove 06 01 05 AV ajoway ajoway AV 2 3 8 001 c 06 Lc 08 Ic 0L 2 3 dwa 1 04 06 siqpc Je5 202 04 0 5 2 HMIN 40 VZ TT VC TT YZST uv 40sse4du105 8 10 y y 2 INTOOT 4 Viva 10 1 15 350 9 L LT 4 0 Uey ssa ou 10 9164 ZE S Sune n8ay y 10 844395 A1032e4 dn3es 15 5 2412995 ay uo sainssaid 35 pue uononpoud 9154 ZTE aunssaid uonons pue 51546720 epis 3 e YUM Jo gt e Buisn Aq s pepi oJd 3 0N SE 0 9c c 06 SE 0 9c Ic 0L SE 0 9c 0S 991 06 epis 991 90T Ic 0L sist 991 90T 05
74. 8 00T c 06 45 08 04 0 4 dwa sod Sq T OE 4 221 1 05 072 02 7 YEOT VS TT Atv 405594909 eSe1aduuy eo SrHVSLOEL WM IAOW 92 2 22994 BY papJo2a S eJnssaJd 1S9AJeH 228214 WI 2121 101 310 09 uoyons ES 55 apis uSIH 136 ainssaid VET ce 6 ep 979944 96 886 qi 9971 s1nou HZ 4 JV ajoway 197M JV JV 2 4 28 dua sq s Lc 08 04 22 53 dwa juaiquiy siupc eo LYST 2 26 04 06 58 OT TZ 05 04 2 EHMS 10 5 Jae sod SAI 2 26 9 921 WZ 9 VZ OT 9 VIZ VS 6v 21055949109 e301 09 0 c 80c Ajddns SLO I INM IQON 10 1 15 175 y OU 1S9AJeH 32824 301 310 94155944 apis 94155944 1S9AJEH ap A5 929914 ap A5 SLOT O TT 00T 6STT 1801
75. AM uo AM UO NJ Jo AM SPunos uueje jo YIND pepeeoxe 14 014 99506 payes 14 uo ATI 14 14 208 06 lt 115 JI AM AM S 4n 6 41 uo dio IND pesop s 4n 905 06 uo 14 senunuoo uueje s 4n pesop s 41 uedo s 4n uo UO 6 41 uo AM ejo o eBing 291 Z pue 59501 6 4 1 4 po Pesoxs 14 Coes 06 Jo 14 Spuooes 06 06 suiBeq Ld 295 06 G37 SI uo 31 S YAMS 18 Spunos d q jou seop 1eye uoyng ES aed 14 995 06 Spuooes 10 Jnou suedo ay ssaid ssed q oL 391 U OUD Mayes z 14 291 2 YMS dnes INOH Z euondo ees 4nou z 404 y 18 si 5 ejnuiu 0 j ejoA2 2 jeuondo M pue yeys e uenbeg 10sues 28 Jo1ju02 4 10 1 15 289 10 1 15 Kejap 998 OF ON
76. GEAR MOTOR 24MFD BELET MODEL SERV ICE 1 zm m 5 2028 ONLY OR AIR COOLED MODEL ONLY Note Drawing shown is F 801MAH MWH 4A3311 010 BR For F 800MAH MWH start capacitor is 187 277MFD run capacitor is 25MFD 380 F 1001MAH C MWH C MRH C BK BLACK 0 Ogu DARK BLUE RR U DARK BLU 208 230 60 1 3 WIRE WITH NEUTRAL FOR 1157 _ ET LBU SLIGHT BLUE W WHITE YELLOW WIR WHITE RED L1 NEUT 12 W BU WHITE BLUE W BR WHI TE BROWN BR BK HEATER W BK WHITE BLACK W O WHITE ORANGE AW ze POWER SWITCH PROVIDED ONLY FOR BR BK REMOTED AIR COOLED MODEL COMP START 1 RUN 108 130MF L 250 DBU Tr 0 R STARTER 1 DBU FUSE 24V LBU 1 CONTROL BR WATER VALVE FLUSH SWITCH BU 0 o FLUSH TIMER 4 7 4 l WIR 1 FLUSH WATER VALVE BR DBU 4 FLOAT SWITCH INPRESSURE SWI Y P 4 THERMAL PROTECTOR RSE BR 0 GEAR MOTOR 24MFD 1 Tm E a UN 22
77. __ REMOTE CONDENSER UNIT CONDENSER FAN MOTOR 1 1 7 MC FOR REMOTE AIR COOLED MODEL ONLY 2A1972 011 381 DS 10 1 15 FD 1001M H C with F A Board WIRING COLOR CODE ORANGE GY GRAY GREEN DBU DARK BLUE PINK LBU LIGHT BLUE BLACK W BR WHITE BROWN BROWN W B WHITE BLACK 208 230 60 1 3 WIRE WITH MEUTRAL FOR 11501 WHITE W O WHITE ORANGE RED L1 BR POWER SWITCH _ Ww GND GR BR START BR REMOTE ONLY 108 130MFD CRANKCASE RUN HEATER START RELAY d 5 6 4d CIRCUIT PROTECT RELAY GEAR MOTOR BR AIR COOLED ONLY REMOTE ONLY BR a CAP 1 5 ly 24MFD FUSE P 72 FAN MOTOR FAN MOTOR THERMAL ipee eme 2 TB PROTECTOR bd HEATER BK CONTROL TRANSFORMER BANA BK 24V CUBELET C ONLY 1 LBU 4 eo BRI W BR
78. ajoway 929914 165 591 SJnou pc uononpoJd Wed sqi sy 2 4 auaiquuv V6 S yZ 105594909 0 HSIAL06 INM IQON 979941 y OJU 5 5 15 228244 WI 921 E301 31ON ze 06 uonns 6 0L 91055914 96 05 8 ze 06 apis 48 TSZ 0L anis TEZ 05 8 ze 06 0 05 8T ze 06 LT Tc 0L 9T 05 EZL 08 ze 06 86 798 12 0 sqi 068 01 0S ajoway ajoway 2 3 501 3 8 00T c 06 5 8801 1z c amp 04 06 5 65 OT TZ 04 0 10 uonduunsuo Jaze s d pz9 sq ZT 2 2 0 Jad 921 0 4 dwa 964 VOT v9 9 8 1 3 V8 OT uiv 1 1055914 05 2301 INLO6 QIAP ASTT 10 e33n8U M 09 0 80 8 VIVA 10 1 15 166 92991 y OJU 5 SI 55 1S9AJeH 328944 10 310
79. gol 6 96 D 9 2 fo 33095 3392 v o o 0 0 HOLIMS ian palro fu E vor 9 asna ps 4 lacow ane to 10 ANO BuHM 22119 io POLSINYSHL quvoa D 10 1 15 220 KM 461MRH KM 501MRH KM 515MRH r wt 185 gt Iss ee BS N c Tr lt m a E os 2 et 2t Sa amp id E Su Sg gt LL E 5 fi 5 m xm 5 ul gt 5 o z T 2 al v mm 5 Sl a 5 EO gt E 5 AT 2x a g 29 t lt se M Le 1 a SE lt 2 Ug 72 pw c
80. of po fp T efeuosiq f seg JOH i O m lt C a o Jeueng aomas 4 c Se910H We yams H lt uonong ensseig uBiH lt pinbr des d X095 n M M 4 Ew Buca 4 epe eur pinbr1 A a IlU N 10jelodeA3 Jasuapuog x Aiddng 1eye eqni 1eureng H8 MYS H INO 8 SINM 10 1 15 112 Evaporator Float Switch Drain R KMS 1122MLH w SRK12H Water Suppl KMS 1122MLH dp Spray Tube Drain Valve Hot Gas Cleaning Valve Valve P EN T Heat Exchanger Liquid Line Thermistor Valve Thermostatic Expansion Valves Shutoff Valves
81. vivd HOSS3HdWOO 10 1 15 268 Water Cooled Head Pressure Controls An adjustable Pressure Modulated water regulating valve is installed on the water cooled condenser outlet This is unique to Hoshizaki water cooled products and maintains cleaner operation and instant cooling at start up A V46 Johnson Controls Penn valve is used The Penn valve is identified by a label on the valve housing HIGHER PENN VALVE ADJUSTMENT CONTROLS CW lower pressure and outlet water temperature with higher water flow higer pressure and outlet water pressure with lower water flow CONDENSER OUTLET WATER TEMPERATURE RANGE Ifthe water cooled unit has been in operation for a long period of time adjusting the water regulating valve may not allow proper pressures In this case the water cooled condenser likely contains an exorbitant amount of scale and requires cleaning An acid based condenser cleaner should be circulated using an acid pump in reverse flow through the coil until the inner tube is free of scale Once the scale is removed the water regulating valve should be adjusted to maintain the range and pressure listed above 10 1 15 High Pressure Safety Switch An automatic reset high pressure safety switch is utilized on all Hoshizaki ice makers The typical high pressure switch is anautomaticreset switch Both capillary and stub style switches are used depending on the model and serial The part numbers amp
82. 101 ASTT 104 09 067 802 8 Aj ddng H INTOST d 10 1 15 uoyons SZZ STZ 06 Spie sii SZZ STZ 16 0 SZZ STZ 0 2 OTZ 07 05 EZ 6T 9 9T c 06 EZ 6T 9 9T Iz OL 6T 9 9T 01 05 S76 0901 9201 SSTT LOOT 8501 YSTI v6TT ze 06 591 2001 066 668 0211 9601 066 8811 6601 04 sanoy pz 2101 768 2801 ECCT 8STT SYTT SEET 8021 OOET OT 0S uononpoJg ajoway AV J91e A AV AV AV 2 3 vsv X duajjejeM 91 8 8 001 c 06 0L 2 3 dwa juaiquiy Lc 08 VE 6 6 0 06 ASTT 40 T 09 0EZ 80Z 8 Ajddns 2 40 uonduunsuo 1948M 18 1055919109 8301 2 H IWIOSI siupz eo 219 OT TZ 05 04 V 6 V9 ST lv 3 3033394 10 1 15 6 96 vE 06 6 96 vE 0 9JnssaJd 6 96 vE 05 ELC apis ELZ
83. SCE 692 apK PAD 979944 sc Med uononpoJd JV 2 3 sqi 3y dual 193 8 001 3 3 dwa quaiquiy s d sq v 9 240 Jad 221 04 0 2 022 8 Ajddns VS IV 1055949109 6101 3 HVIAO8C INM IAOW 10 1 15 991 S aJnssaJd 928944 101 31ON 9JnssaJd 91155944 9 A5 229914 12 132 591 5 pz 2 3 sqi 8y 825 TZ ZE 07 06 776 01 1 05 0 HMIN 10 uonduunsuo sod 098 91 7 4 Jed 921 vc 8 VL V 6 JV 10559494109 210 9 ddns H VIVO 39NVIAHOHH3d 10 1 15 ejo o y Papsoo a S S9AJeH 928344 301 310 uonong 91155944 80 910 ze 06 apis 867 966 897 Sec 04 anssaJd EEC SET 0T 05 Sc EC Sv
84. T 09 0EZ 80Z 8 Ajddns V1VG 10559494109 eSe1aduuy 101 D H 0002 4 10 1 15 359 62 ec 8c zz 92 8c 92 92 82 sc lt lt 82 06 6c ec LC zz 92 Lt 92 9c Lt 52 lt lt LZ 1 0 6c ec 9c 47 9c 92 92 92 97 sc sc 92 01 05 710 597 855 697 oez oec 697 612 692 06 apis 147 717 E97 E97 oez E97 2 0 ainsseja 719 797 792 oez oec 792 612 792 0 06 9T 71 9T 71 eT 91 YT 21 NO 9T vT 21 0771 0051 01971 5651 0521 O ZT 5681 0881 5251 5191 8091 2651 S641 lt 0561 0261 0451 0591 00 1 5891 Sv8T 5281 0102 0661 D 4918 22 04 bs sqi 3y 8 001 c 06 Lc 08 Ic 0L 0 4 Juaiquiy 44 1 9 v T TZ ZE 07 06 siupz leED T86 0 2 05 0 48suapuo 2 HMIN 104 uonduunsuo V6 8 V6 6T V6 9T Jae1eM 1055949409 8 e301 09 0 2 807 ASTT 404 T 09 0
85. a 7 lt gt z i 4 a ee 5 ge a T 8 0 1 BR W ud a tg 85 Zn 5 a gt gt w S gt NOTE 1 Generic diagram See unit serv manual wiring diag chart for cap ratings by model 2 Production of KM 320 515M after Feb 09 uses G board and mechanical bin con trol with no resistors in wiring harness 3 Line Valve is also used on KM 461 515 air and KM501 515 remote 0 216 10 1 15 KMD 410MAH MWH x 0112 4 2 1116 13007 411002 INO s eg a a D send p M _ no 1 6 bol T F 1 wna 1 agg a 2 aM neo i ag ni zon L 19 gg 5 uvis IBN Llo els 1 1 1 401231084 1 1 1 a 2113N9VN 4A01134 83389 1 9 3349 9 4310014 3119 18911 97 3m8 Mav 8d Wiid d 1989 49 0 434 4 X8 A 038 8 3002 0102 IIA N 1 09 021 11 10 1 15 217 KMD 450MAH MWH ye il 57
86. orina eto one 321 FS 1001MLFI GC enacted credet coin Jets 322 F 1900MREL tenete perse nee ee 323 FS 1001MLH C FS 1022MLH C 1501 324 FD 650MAH C FD 1001MAH C F 1001MAH C F 1501MAH C 325 FD 650MWH C FD 1001MWH C F 1001MWH C F 1501MWH C F 2001MWH F 2001MWH C IN ente 326 FD 650MRH C FD 1001MRH C F 1001MRH C F 1501MRH C F 2000MRH F 2001MRH C 327 F 2000MWH F 2000MRH C Pasce 328 F 2000MLH hanh recens o E 329 F 2001MLENG Lc acit tette coute deca acm P 330 These drawings are found in the unit service manual by model 312 D 10 1 15 101 Inlet Water Valve Water Inlet Evaporator Condensate Drain Pan Drip Pan Water Level Float Switch Water Reservoir L Overflow Hose Evaporator Condensate Gear Drain Pan Drip Pan Hose Motor Evaporator Water Supply Hose Drain Valve Drain Valve Drain Hose B To Bin Bin Drain Hose Gear Motor Gear Motor Drain Pan Hose Drain Pan To Drain Capillary Tube Condenser Condenser Fan Motor Suction Discharge Compressor Drawing is current production Gear mot
87. v8 amp 8 Ud VE OT 1055919109 e8ejeduiy jezo ssausey 8 JYS Aq perjddns T 09 STT 8 Ajddns V1VG 39NVIA3OHH3d Er 8 FVL MYS 9 CTAOTL SINM 9799 4 941 SOJNUIW 2 1 SI 5 10 1 15 1S9AJeH 828244 SWI ep 2701 310N 0S CLE ec LC Sc aloway 001 87 97 686 196 6 0 TV 6c LC vc ze 06 vv Tv LLC YSZ 9 oE SE 8c 9c vc OLCT 68 vv cv Ot 45 08 lt 04 ze 06 0 91055919 6 0S apis 91055919 929914 181 sa sanoy pz uononpoJqd sqi 8y 2 4 1 3 0 4 dwa quaiquiy 10 T 09 0EZ 80Z 8 Ajddns sod 591 9 87 2 2 Jed uononpoaug 221 V9 8T V8T 39NVIARNO33d 10559494109 H IN009L INM 10 1 15 9299 BY papJ0234 si aJnssaJd 1S9AJeH 828944 BWI 21 EOL 310 LV 07 c 06 uoyons Ov LE 16 0 91155914 8 LE LE SE 05 STE
88. 205594909 0 5 8 H TIN0007 SIAM 10 1 15 195 97994 y OJU S N UIW SI 9 155914 1S9AJeH 928244 SWI E30 310 zs 15 IS 0S 05 8v 6t ze 06 sepsis 6 6 6 8t 10 04 8t 0S 90 962 682 817 Ua SZZ 790 2 06 api usi plz 595 042 857 ESZ vSc EEZ 8v 10 04 gez SSZ EEZ 872 176 LTZ 0S ve 17 6c 9 9 0 2706 S E gE TE Le 6v v 12 0 gE 67 o s vs 6v 0S 2 9 BE LE ze 06 arsi 9 SE 62 10 04 awu o 6c o 6c 6c 87 0S 2991 0191 YEST 0081 1761 ze 06 v9LT 005 OTST osoz 2881 S902 8961 802 01 591 8061 lt 002 8961 805 7861 9802 7207 960 ot os Mou re uononpoJd 310Ul8y 2 4 vS X 501 37 001 lt 06 17 08 12 04 2 3 dway quarquiy saupz e9 8v6T sod 09 591 8 9 9 212 Jed 921 2 09 022 80 0 06 egeyoA Ajddns Vc 6 21 5 OT TZ 0 lt 0 EHMS 10 uonduinsuo V6 VS OT 1 3 1 5
89. BR s xn o INFRARED 5 23258785930 1 23 SENSOR BIN 2 K2 CONTROL CONTROL Een ek H W BK 5 k CONTROL BOARD HI PRESS SWITCH K9 Y BR J Jepun RIRI 7 DBU W O R Bk m DBU GY GY MECH BIN FLOAT SWITCH CONTROL 0 382 R F 1001M J C SI DIP SWITCH SETTING 1 2 3 4 5 6 T 8 9 10 F 1001M J C OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF 115 60 1 w j N BK 5 POWER BK mm ees CRANKCASE HEATER SWITCH P BK HEATER w REMOTE MODELS 6 FAN MOTOR REMOTE MODELS OD FIELD BR BROWN IRING BU BLUE BK DBU DARK BLUE BR ge FAN MOTOR LBU LIGHT BLUE m AIR COOLED MODELS 0 ORANGE P PINK w R RED m T HEATER EVAPORATOR HEATER Y YELLOW TT MODELS wW TEMI pedem W BU WHITE BLUE P BK
90. E ETES 1 e 3 void 5 SN T E ___ 588 Pressure Switch Air Cooled Model Water Cooled Model 412 213 PSIG 384 213 PSIG 327 21 3 PSIG 284 21 3 PSIG Note 1 Some models use mechanical bin control instead of thermostatic bin control with fuse as shown 2 Generic Diagram See unit service manual or wiring diagram chart for capacitor ratings by model 212 10 1 15 KM 251BAH BWH KM 255BAH BWH WO E77EVE 1713001 931000 AINO IME unam 3n Cg quo d AYO 19 8 8 icu 04407 zm 15 Hr 8 o PES 553 Be pee n og 300 4010 IN lo aso N 2 DIIS t 5 E J D 9 m to 1 n WE 0 0 1 mo 6 4 4 A 71 35 9 tp to 8 i Sh o M 5 5 o 1 TO uim E SH
91. LU 1 1 199 9 eg Orgy 2 9 610 CONTROL FUSE 0208 P ab gee 0 Z iom GEAR BR MOTOR RELAY 0 CONDENSER FAN MOTOR BR L BK 5 MD BR R AIR COOLED 227 3A4622 010 DEL ONLY 378 10 1 15 FD 650MAH C FD 650MWH C FD 650MRH C BR 115 60 1 i CRANKCASE R HEATER BR REMOTE 2 tra Ul 3 INTERNAL y 4 W PROTECTOR START M 2 jp RA V 211 10 4 RUN Y 5 pb 317 0 E Gr L 3 BR al BR COMPRESSOR GEAR MOTOR INTERNAL CONTROL RELAY BR PROTECTOR cap GY ner FUSE 20MED BK 20 R 180 alba W 0 0 4 1744 EA MOTOR 000 UN BR H E E EET FIELD BR IUE MERING 2 CONTROL BR WR R loro TRANSFORMER FUSE 1 t LBU LBU 24YAC Leu LBU INLET DRAIN
92. deis pasn s uos ueuM 930N senunuoo senunuoo ATT senunuoo AT1 W4 W4 senunuoo W9 Jo A11 senumnuoo W9 W9 9 Spes HO ATT senunuoo W4 pue yo Wa yo dwog dwog dwog 95015 S 4N ueuM HO 10 W9 uo AM owg uueje Jo AM uo AM uo Jo AM 5 uueje jo pepeeoxe 14 4014 99S 06 payes 14 uo ATI uo HO 14 14 96 06 lt 115 JI senunuoo AM uo AM S 4M uo AM 6 41 uo uo W9 s 4n 298 06 uo 14 uedo s 4n 8 41 uedo s 4n uo uo HIND pesop 5 47 uo AM Seu 14 Coes 06 yo 14 e spuooes 06 Spuooes 06 spuooes 06 esoe G31 SI M r dnes Li Li uo 451 ueei S Sues suiDeq Ld 295 06 13 31949 89
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94. 09 M eos _____ spuooes 06 1 0099509 aouanbas uwopinus 295 061 Y NS gt nues 1 suibeq eouenbes uwopinus puooes 061 14 7295 06 lt Ayayes 19 e AA M01 9 o 2 2 44 n ees sinoy 02 10 suedo 12 2 m 2 0 264 VZ 80S4 00S 00 INDG J8 EM AM eja1 HOM yams 120 s 4n 6 41 Aejas seab W9 Kaes 14 Jojoui 5 SW ureup 1055 dwog Jonuoo 29 uonisod eui 0 YOR yams y uay uorisod NIV HO 941 uos eui 440 eui 0 5 amod y eouenbes uwopinus puooes 061 eui ssed q 240 pesay UMOP NYS seyeuruue eouenbes uwopinus puooes 061 eui jun 2 6 zou seop AI ezeeJj y Buunp uonisod 9u 0 ueuM JI0AI6S81 Jezniues pue Jeueejo si Hun
95. 1 wwe ppp o o 1 ooo uw o KMS 2 2000MLH 3 o s o o a 5 o o E PE Ed E ew 4 o polo wzm fo polo o 10 1 15 Control Board Functions An instruction label explaining the E board features is in cluded on the unit It can be found either on the control box cover inside of the front panel or under the top panel A stick on label is included with the service replacement board If you are replacing an E board be sure to place the new label over the original label This will advise anyone performing future service that the original board has been replaced and explain the application switch as outlined below The 241410 02 replacement board has an application Switch between relays X3 amp X4 that is not included on the original factory board supplied with the unit This application Switch allows the replacement board to be used on older C and Alpine control board models The application switch has 2 positions C amp ALP On R 404A models this switch must be in the ALP position If the switch is left in the C position the compressor contactor will energize
96. As ice forms on a cuber evaporator chlorine outgases and settles to the lowest point in the bin This gas sticks to wet surfaces and around the door opening of the bin to form hydrochloric acid If this acid remains on the stainless steel rust colored corrosion occurs With enough exposure the corrosion can pit and damage the stainless If rust colored corrosion is found it should be cleaned thoroughly with a non abrasive cleaner and protected with a stainless steel polish Heavy corrosion will require some effort to remove and may require the use of a cleaning agent like Brasso or non abrasive powdered cleaner like Zud or Bon Ami Care should be taken so as not to scratch the stainless during the cleaning process 10 1 15 Cleaning Sanitizing Procedure A maintenance label that details the step by step cleaning sanitizing procedure is located somewhere in the unit It is generally located on the inside front panel or under the top panel These instructions are also provided in the Instruction Manual shipped with each unit Follow these instructions to conduct a thorough cleaning and sanitizing of the water system Annual cleanings are recommended More frequent cleanings may be required in bad water areas Cleaners Hoshizaki recommends Hoshizaki Scale Away or a similar ice machine cleaner however any FDA approved ice ma chine cleaner with a 28 30 phosphoric acid solution is acceptable If you carry a nicke
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98. TM TECH SPEC S TECHNICIAN S HANDBOOK R 134A amp R 404A H Models Cuber Flaker DCM Dispenser Hoshizaki Technical Support 618 Highway 74 South Peachtree City Georgia 30269 Phone 770 487 2331 Fax 770 487 3360 80050B TECH SPEC S Technician s Handbook 480050C This technicians handbook has 2 sections The first sec tion covers general information for all Hoshizaki H Series cuber ice maker models Additional technical information full parts and service manuals are available for review and download on the Tech Support page ofthe Hoshizaki web site The second section covers F DCM auger products See www hoshizakiamerica com support for manuals Tech Tips and additional technical information on Hoshizaki products See Tech Spec s 80024 purple pocket guide for older models using R 12 502 refrigerant See Tech Spec s 80021 green pocket guide for E Series models using R 22 See Tech Spec s 80045 orange pocket guide for F and early H series ice maker models These guides can be downloaded from the Hoshizaki web site or purchased through your local Hoshizaki Distributor A print out ofthe guides will be on a 3 5 x 7 format Set printing preference if larger format is needed FOR FACTORY SUPPORT CONTACT HOSHIZAKI TECHNICAL SUPPORT AT 1 800 233 1940 E Mail techsupport hoshizaki com 10 1 15 TABLE OF CONTENTS PAGE Model Number Identification Code
99. VYT VEZ VYT VST 4936 1 1055914 05 101 H S0091 INM 1300 2661 Tz c 07 06 sod 591 6 0 2 2 Jed 44 921 ASTT 09 0 80 8 Ajddns 9799411 JY S ejep 55 15 328214 2 9 2701 31ON 10 1 15 184 lv 9y 37 uonns Ov 6 9155914 6 e 8 8 Tv LE Ov G62 082 8 7 8 7 197 9 7 75 VLC apis 8 797 9 7 097 617 ELZ SEZ Tc 9155914 SEC Tc EEZ Tc Scc 0 7 0 17 ec L 8 t 1s9AJeH 67 vc 0 Sz 8 t 8 6 ve 87 6 v S S 0 5 8c 6c LZ 6c 97 97 979944 LZ 97 LZ 97 97 Sc 97 Sc 97 Sc 97 Sc Sc vc Sc vc ELET T6ZT 9571 TIET 6961 541 SSET 9751 SLET 1751 0vT ZEST 7151 6071 LvT 7157 OTST T9vT 0051 J91eM J913eM J913eM 9joulay J913eM vS X sqi 3y 8 001 06 17108 16 04 5 0721 Tc c amp 04 06 SOOT 2 05 0 jesuepuo HMS 104 uonduinsuo 1 s d sq 6 06 2 2 Jad 921 09 0 Z 802 8
100. d AYUD 19 0 034 4 8 JLHM M _088 89 300 80102 LINN 33543040 310039 AWA INWA H3lVM D 9 NS 19014 5 o L ay an HOLINS 04094 69 1104140 NB 89 9 M 403 E to 09 0 2 802 e MOLSWHSHL 3803 ol 10 1 15 227 2 KMD 700 900M use E board and resistor wiring harness 1 KM 900MRH has 30MFD run capacitor Note Generic diagram U KMS 750MLH amp SRK 7H KMS 1230MLH amp SRK13H KMS 1400MLH amp SRK 14H KMS 1401MLH amp SRK14H H3 KMS 1401MLH amp SRK 14J J3 7 CONTROL BOARD Ki Control Transformer Output 10 5V at 115V 1 1 i 3 t 0 9 4 1 4 5 4 3 1 1 1 1 3 Y R K Y R R R TRANSFORMER TAA aK BK ak E 500007 BIN CONTROL 180 os FLOAT SW BR R P IHOT GAS VALVE HI i 88 THERHISTOR R P Y P 0 Xi T 1
101. el i d 2 e IZ zs E e ean 47 9 29 259 5 00000 E BK BK FLOAT SW Li Nr L H 1 BIN CONTROL SWITCH HOTGAS VALVE VR ui ws ud 356 8 Ss gr Ew oF a olo H za 25 5 9 lt 0007 e E 5 gt e 5 gt lt gt zm 2 Ez mA ma e A Ea L 4 2 1 1 1 E c lt 1 E 5 5 amp Sp _ jo E 2 glo ne 4 mi m x 5 5 2 2 ul 5 Ey 5 x ps a Boe tus SzH 52 SEzZUESIECTU uj p pep ean i EP 85 BL Note 1 Generic diagram See unit service manual wiring diagram for capacitor ratings by model Some production medels will include mech BC instead of thermostiatic BC Later production after February 09 uses G board and mech BC with no resistors in wiring harness KM 900MRH before M2 have different numbering on cont
102. 0 8 OT TZ 05 04 gt EHMS 10 uonduunsuo sod Q9TZ 91 2 Jad 221 Vs V6 OT 6 VIT IV viTH 1055818 05 09 0 2 80Z Ajddns S008L INM V1VG 10 1 15 190 Spo 92991 941 So1nuiuJ SI e3ep 55 1S9AJeH 828244 SWI ep 0 310N lt aJnssaJd 66c1 4 98 1 8 001 St 9 Tv 6v S Tv vt vt vv 8 t 9191 saupz e9 ZEST sod 09 541 21212 221 07 06 EM 2201 OT TZ 05 04 91055919 979944 541 5 pz uononpoJd Oii Sq 8 1 3 0 4 dwa quaiquiy uesuapuo HMS 40 uonduunsuo 4 3 VI IT VS 7T yTy 1055949109 jezo ASTT 10 T 09 0 Z 80Z Ajddns 39NVIA3OHH3d S0061 INM 10 1 15 191 97994 941 1 SOINUILW gt SI 55 1S9AJeH
103. 065 st9 059 05 7 79476 JV JV 2 4 uononpoJd dwa saem 757 54 8 8 001 06 47 08 04 22 54 ogv 07 06 eoe OT TZ 05 04 HMIN 104 uonduinsuo V6 OT VEZ VETT 10559444109 0 1 09 S11 2 WOS9 G4 10 1 15 342 It 8 8 LE SE ct 06 6E LE 8E SE 8 8 LE SE 05 892 982 Soc YSZ 992 ct 06 692 982 992 YSZ 792 SPERM 492 982 492 YSZ 592 05 Ic ec 6T Ic 06 c 6T 8I LT 02 EZ ec 8T 9T 05 SSS 029 SES 0S9 019 089 00 ct 06 S6S 06v 479 S S 099 0 9 lt 69 OEZ Ic 0L 409 015 079 585 0 9 599 024 09 01 05 sanoy pz uononpoJd 493A 1 3 m m ES vSt X Sq 8y wal 8 001 ct 06 Lc 08 04 2 3 quaiquiy 9 TZ ZE 04 06 gt 5 sov OT TZ 05 04 PUCD HMW 40 uonduinsuoo Je3eM V8 OT Vc 6 VLTT uv 1055949109 8
104. 0S 38 92984 BWI 30 31ON uonons aunssaid epis 8 aiNssald 15 9 929914 9p ze 06 16 0 oT 05 2 3 59 S1nou pz Sq 3 sod 097 54 lt 6 2 2 Jad 221 T 0Ss Ovc Occ Ajddns 3 4 dwa juaiquiy ve s uiv v8 2055944109 e8e1eduuy 101 3rHVIAOOS IAM IQON VIVA 10 1 15 143 979941 y 5 5 15 92994 BWI 2 9 E301 310 c 06 uong 17 12 04 enssaJq oT 05 9 7 6 06 apis YSZ TZ 04 eunssaJd SEC 01 05 9 E 06 15 6 12 04 awy oT 05 42 22 06 92984 6c 8c Tc 0L Lc 9c oT 05 TLE c 06 591 717 sanoy 727 9 867 OT 0S AV AV 2 4 vst sqi 3y 8 001 06 2 dwa 1 049 04 06 siqpz e9 066 OT TZ 04 0 HMIN 40 uonduunsuo Je1e sod 089 541 5 6 a p Ao Jed uononpoud 921 YTT VOT VOT VII VET 14 21055949109 2701 T 0
105. 187 9289 BY si eJnssaJd 92824 2701 310 uonong aunssaid apis aunssaid 929914 ap A5 7901 8801 9651 7971 9971 ETET c 06 9EST 60 T 5951 SYET SEST COST 8 6951 8551 ECHT lt 04 541 0251 LOST 6LET 9ST 8557 89ST LSST 5851 SSST 9SpT 01 05 ajoway ajoway JV ajoway 1M 2 4 sqi 3y 8 00T c 06 Lc 08 0L 2 3 dwa juaiquiy 016 2 26 04 06 5951 OT TZ 04 0 Jesuepuo 10 uondunsuo sod Sq 210 1ed VEL V6 V 6 4916M v 6 uv 40ss24du102 101 09 0 Z 80Z Ajddns V1VG 39NVIA3OHH3d SL09L INM 10 1 15 188 ajoAo 92991 y SOINUIW SI e3ep 5 1S9AJeH 92994 1 12 1210 31ON 09 8t 0S 8S 06 Z 06 95 Sy 05 SG v 0S TESOL d 74 05 IS lv 05 01 05 c 06 apis OL 91155914 05 c 06 d
106. 2401 1 09 511 Ajddns H 008 3 10 1 15 343 Sv 8E Tv 8E LE SE ZE 06 Sv 8E 8E LE SE IC 0L 6 Sv 8 Tv 8 8 LE SE 05 apis USIH 197 91155944 ez 505 SSY 0 5 Sev 509 019 0 9 00 06 055 06 065 SLS lt 19 0 9 059 72 Ic 0L 591 095 OTS 065 585 509 599 049 094 01 05 sinou yz uoyonpold 4 3 4 3 AV AV pied sqi 3y 001 c 06 17 08 01 0 4 1uerquuv 9 TZ ZE 04 06 gt 86 OT TZ 04 0 2 40 uonduunsuoo 1 726 V8 OT VETT uv vu 10559494109 jezo T 09 STT Ajddns 2 008 4 V1VG 10 1 15 344 di uoyons 91155944 apis 2 9155914 S97 0 065 095 591 ELS s1nou pz uononpoJd 2 4 sqi 3y 1 3 8 001 0 4 dwa 2 26 04 06 saupc eo 90 2 05 0 02 40 uonduunsuo 1 6 W1y 10559494109 10 H INT08 3 42936 T 09 ST
107. 4 Leak check evacuate and charge with 15 to 30 PSI vapor charge using the correct refrigerant 6 Re insulate the connection areas 5 Make the connections to the condenser and head follow ing the standard connection process 10 1 15 R 404A Refrigerant System Information System Charge The ice machine head and URC condenser are shipped with enough refrigerant charge for up to 66 ft of line set length The maximum line set length is 100 equivalent feet from the head to the condenser for most remote models The maximum for KMS models is 66 equivalent feet For applications longer than 66 ft up to the maximum 100 ft length additional refrigerant must be added For any length over 66 ft add 0 4 oz per foot For units utilizing 3 8 L L line size change is needed For units utilizing 1 4 L L and 3 8 D L the line size should be increased to 3 8 L L and 1 2 D L for the entire length of the run then add 16 5 0 4 oz per foot over 66 foot Note 1 Recommended line sizes are the same as listed in the line set application chart Older models utilize R 502 refrigerant or R 22 refrigerant Always check the unit nameplate for the correct refrigerant type DO NOT mix refrigerants DO NOT connect components using different type refrigerants 3 If refrigerant is added due to extended line set length mark the correct total charge on the unit nameplate for future reference 4 When routing and inst
108. 65 ES 8v sv 91155944 LC LEZ apis BEC 91055919 261 061 a si Lc IL P J s ie 9799134 o K 28 IL P J 258 786 2701 4 v901 vLOT 9seud 9seud 15 aseud MO 2 3 8 00 c 06 B pm Lc 08 16 04 sqi 3y 2 3 1 sod 088 ZT 24 uononpoug VS OT Ud VZLZ vTH 1055949109 8 1 ssauJeu 3uuiM JYS Aq 1 09 511 8 Ajddns VIVA H82INHS 1 5 10 1 15 167 Spo 979941 y 5 eJnssaJqd apis apis 8 00T c 06 2 08 10 1 15 15 92994 BWI 2 9 E301 310 apis 04 uoyons aunssald 91055914 35 97994 168 591 51 0 pz uononpoJd sqi 8y 2 4 0 4 dwa quaiquiy 520 88771 SQI pz 242 199 ssauJeu Aq 9 8 Ajddns 39NVIAHOHH3d VOT YST 1055949109 0 H L MHS 8 H IINO C L SINM 9
109. 66 Board 15 Minute Check 68 Reservoir Flush System Pump Out Check Valve 7O KML 70 61 101 151 Drain Cycle 71 KM Control 72 Control Board 72 Control Board Fuse 73 Component Checks Float Switch 74 77 Control 77 Board 78 Bin Control 79 80 KM Control 82 Pump Assemblies 82 Smaller 5 83 Larger KM 84 Refrigeration Solenoid Valves 84 Inlet Water 85 CKD 86 Invensys EATON other Valves 87 Water Valve 87 KMS Serenity ioco 88 KM Evaporator PEE 89 Diagnosing Water 91 Freeze Up Check Lists rne 93 Preventative 95 Cl
110. 8 Serial 9 10 Warranty Information 11 COVE AGS 11 KM Installation General Specs 12 Plumbing Requirements All 12 Condensate Drain 13 Flow Rates 14 pem 14 Electrical Connections 15 Transformer Application optional 16 Remote Applications Condenser Chart n diapers 17 Remote Lines 18 Line Set Application 18 Remote Cond Installation Diagram 19 Line Set Installation 22 20 21 R 404A Refrigerant System Information System Charge esie eec ta einsam e paca 22 Cuber Charge 23 URC Charge Chart Refrigerant Heat Load for AC amp Cooling Tower 28 Cuber Heat Load 28 Condenser Heat Load 30 Component Technical Data E Control Board Adjustment Guide 31 E Board Dip Switch Settings 32 amp Board Adjus
111. Always check to assure they are secure when conducting preventative maintenance mn 299 MEE 10 1 15 Seal Bolts The extruding head is secured in the outlet of the evapora tor barrel with seal bolts The seals are important to main tain a leak free evaporator assembly The seal will com press when the bolts are properly tightened and prevent leaks The seals are one time use The seal bolts should be replaced and properly torqued if removal or replace ment of the auger extruding head is required Seal leaks will result in visible scale trails from the bolt heads Extruding Head Evaporator Condensate Drain Pan Seal Bolts Evaporator Assembly Bolt Torque Spec in ft In N M Cutter Seal Housing Gear mo bolt bolt bolt tor bolt C 100 101B F 300 7 4 10 11 1 15 1 3 8 5 2 7 4 10 330 450 500B M DCM 240 270B DT 400B F FD FS 650 800 801 7 4 10 11 1 15 1 7 4 10 14 8 20 1 1001 1022M DCM 450 500 750 751B F 1500 2000 2001M 9 62 13 1 25 8 35 14 8 20 1 14 8 20 1 DCM 750B Extruding head bolts must be torqued to 25 8 ft Ib twice with at least 2 minutes between application to compensate for seal relaxation Order seal bolts by part number and keep spares on hand if you service auger products C 100 101B DCM 240 270 300 450 500 751B P01768 02 F 300 330 450 500 800 801 1000 1001B M FD 650 801 1001M FS 1001 1022M DT 400B F 1500 1501 2000 2001M DCM 750B FS 1500M 474757602
112. Turn power off and on again Freeze Timer WV off gt 30 minutes since last WV activation Manual reset Turn power off and on again Low Voltage 92 5 or less High Voltage 147VAC 5 or more Gear Motor CCR contacts fail to close POWER OK LED turns off if voltage protection operates The control voltage safeties automatically reset when voltage is corrected Manual reset Turn power off and on again IS BC1 fails CB S1 dip switch 7 on MBC BC2 actuator paddle engaged Manual reset Turn power off and on again Legend CB control board CCR compressor control relay Comp compressor DV drain valve FM fan motor FMR fan motor remote GM gear motor IS BC1 infrared sensor 2 mechanical bin control LLV liquid line valve MLH model SLV suction line valve model UFS upper float switch WV inlet water valve To reset a control board manual alarm Turn power off and on again If an Alarm occurs check the following 4 beeps 5 beeps 6 beeps 7 beeps 8 beeps Check external filters plugged inlet W V screen intermittent Auto W V operation or water control circuit issues i e sticking float switch or control board relay issues educate customer refrigeration issue conditions or defective bin control 277 Check drain switch position switch contacts or circuit and or Check for high ambient or water
113. WATER VALVE 3 3i T NOISE KILLER 1 1 Gel KR 2 2 DCM TIMER BOARD FLOAT Sn 1 K5 A 31355 4043535283 DBU ane NOISE KILLER SWITCH fap gg BR R e WBR BK Reo es 4 WATER CONTROL RELAY WR SR m CHANGE SWITCH eO 0 ICE MAKING n BIN CONTROL SWITCH SWITCH LBU 3A256 372 DCM 751BAH DCM 750BWH H 11512078071 1 7 WIRE COLOR CODE BK BLACK Sur gr BR BROWN 0 DBU DARK BLUE Moe GY GRAY BR LBU LIGHT BLUE POWER 9 E TCH i c rd PINK WB SAFETY i hn VIOLET T BR qu Wa 4 roe Y YELLOW BR 1 W BK WHITE BLACK Ee ENR W BR WH BROWN Biggs 80 W BU WHITE BLUE fiit ini W 0 WHITE ORANGE e W R WHITE RED 5 10 dm ii RELAT W RETE Aic oror E i ko
114. _ gt 247 10 1 15 FUSE 10 BIN CONTROL OO KM 1800SWH KM 1800SRH KM 1900SWH KM 1900SRH CONTROLLER BOARD K 71 Ki Transformer Output 105Vat 115V lt gt KT FLOAT SW THERMISTOR o 0 TRANSFORMER BR 2 m PT Ld 8 ate log STARTER ojoh 5 Xx 0 0 WATER MAGNETIC CONTACTOR 12 208 230 60 1 WIRE WITH NEUTRAL FOR 115V N u b 248 10 1 15 KM 1800SAH3 KM 1900SAH3 p 2 55 Bus lisi passe TRANSFORMER me Og BIN CONTROL FUSE 104 LINE n 12 0 B 2 1 240 t1 OO 1004 WATER VALVE 208 230 60 3 1 gt SE o8 F 3 4979 010 10 1 15 KMS 2000MLH amp SRK 20H 3
115. eseoxueJo seu uoIUuM 20 esn spun 10 1 15 46 euer avanoa __ 101 ss 6LC Add H95I0TSO IN00L GIADI 75009 106 91 res 0 7 9 10 9 S HVINOS9 ADI H HVINSTS IADI HANI SY TWA IN009 ADI HOd Pueredo 10 9LerVr WOES CINM INS TS ADI 201 349 dA swo AMS IMPEN Wed PPOW suonipuoo si eoueuuojed ees ZU 0G ueedounz 06 10 3 peo eoueisises ues SN esn seues H eouejsises BuipulM uns YMY 10103 1201 eseoxueJo seu 1 20 esn Vivd HOSS3HdWO2 10 1 15 47 10 1 15 304 9ST 1 eur oj ourT 541219381502 Puedo 0 S008T IADI ST09 T ADI 09 Teel Sy 50 AJdd H95I8TSO CO VEETV S008 STO9T W HAIN 09 E AD TEET SY Iva aod SA L H9SMCISO
116. the ice maker resumes operation The Dip Switches should be adjusted per the chart the unit s service manual S4 dip switch 8 must remain off 41 10 1 15 G Board Control Board Lights Alarms and Test At startup a 5 second delay occurs while the control board conducts an internal timer check A beep occurs when power is turned off The red LED indicates proper control voltage and remains on unless a control voltage problem oc cursThe green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below Note that the order of LEDs from the outer edge of the board is 1 4 3 2 Sequence Step Energized Time LEDs are on Components Avg 1 Minute Fill WV 1 minute Cycle Harvest Cycle Comp FMR 2 20 3 to 5 minutes WV HGV minutes minutes Comp FMR 0 50 sec harvest pump PM HGV seconds onds timer setting Freeze Comp FM 5 Freeze 30 to 35 Cycle FMR PM minutes timer set minutes ting Pump out Comp FMR 10 20 pump out timer PM Seconds Seconds setting HGV SR DV The built in safties shut down the unit and have alarms as listed below Harvest Pump Timer Type of Alarm High Evaporator Temp Check for harvest problem stuck HGV or relay Temperature gt 127 F hot water entering unit Stuck HM or shorted 1 53 C thermistor Harvest Backup Timer Check for open thermistor HGV not opening TXV harvest gt 20 min for or LLV leaking by low charge ineffencient Co
117. the problem may be in the gear motor relay circuit Remember that there is a time delay from the time you turn the unit on until the time it cycles up completely This time will be from 1 2 5 minutes depending on the unit model In order for the flaker to start up the reservoir must be full and both float switches must be closed This closes the control circuit to pins 3 amp 4 Do not confuse these pins with the line voltage terminals marked 3 amp 4 on the compressor relay located on the board You can check this circuit with a volt meter across the pins or by placing a jumper across them If the unit cycles up with the jumper in place the board is good and your problem is in the water relay control circuit Note In self contained models the bin control will be in series with terminals 3 amp 4 Check the bin control operation if this circuit is open and the water control relay is closed Next you should check the bin control circuit at pins 5 amp 6 Check for a closed circuit with a volt meter or place a jumper across them If the unit cycles up with the jumper in place the board is good and the bin control circuit is the problem The last circuit check is across pins 10 amp 11 These pins connect to the gear motor protect relay and will shut down the unit if the gear motor fails Check for a closed circuit with a volt meter or place a jumper across them If the unit cycles up with the jumper in place the board is good a
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119. 100BAE AD It now subs for all previous float switch numbers in our parts system Since the float switch is mounted into the water reservoir it is susceptible to scale build up The amount of scale build up will depend on the local water quality Scale on the switch shaft can cause the floats to stick This will effect the unit operation In this case the float switch should be cleaned and checked The float switch is held in place on the top cover by a twist lock bracket To remove it twist the switch flange and lift Soak the switch assembly in ice machine cleaner While it is not necessary to do so some technicians remove the floats from the shaft during cleaning If you remove them note that the blue float is on top Also itis important to clearly mark the top of the floats so that they can be replaced correctly The magnet side should always be at the top of the float when it is reassembled See drawing below Installing the floats upside down will effect the timing of the float switch opera tion Once clean rinse and wipe the cleaner off and check the switch with a good quality ohm meter This float switch has three wires the black wire is common and two separate switches Check the top switch by ohming out the black and red wires When the float is up the switch should be closed Check the bottom switch by ohming out the black and blue wires in the same manner If either switch fails the assembly should be replaced Dual F
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121. 2 Look for oil spots around joints and connections and use the proper leak detector 3 Increase the system pressure by masking the condenser or disconnecting the condenser fan motor for a few minutes during leak check 4 you find a leak you should always recover the remain ing refrigerant make your repair and change the drier Then evacuate the system and recharge to nameplate rating Note The drier should be replaced any time the sealed system is serviced THERMOSTATIC EXPANSION VALVE TXV If you suspect a TXV issue and are confident that the evapora tor and condenser are clean and the system charge is correct following is a quick check to help in the diagnosis Remember a low charge dirt and scale can cause misdiagnosis nmn 310 10 1 15 1 For a single TXV model with the unit running disconnect the TXV bulb and warm it using a cup of hot tap water Watch for the pressures to increase when the load is increased by the warm temperatures Next cool it in a cup of ice water Watch for a consistent swing of 15 to 30 psig If the pressures remain constant or are slow to change the TXV is likely bad and should be replaced 2 For a duel TXV model the swing test will not apply With the unit running check the temperature difference at the valve outlets and compare them Expect a small difference of 2 F however an excessive difference in inlet and outlet temperatures will point you to a defective TXV If one val
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130. LED These LEDs can be used as a visual check for proper bin control operation on a G board unit To electrically check a mechanical control on a G board or H board unplug the connector and use an ohm meter on the control Push the actuator paddle to the bin full position and the switch should be open b Allow the actuator to hang in the normal position and the switch should be closed 10 1 15 KM Control Transformer The KM control transformer supplies 10 5 VAC to the control board through the K2 connector This 115V 10 5V stepdown transformer is a heavy duty component with an internal ther mal overload The primary winding of this transformer will handle higher voltage without damage because the thermal overload will open to protect the winding in the case of im proper supply voltage The control board monitors the output voltage of this control transformer and provides automatic reset high and low voltage protection The Power OK LED on the control board will not light if no control voltage is supplied The 115V transformer primary circuit is supplied through the thermostatic bin control con trol switch high pressure switch and low pressure switch if included If either of these switches are open there is no control voltage at the transformer connector and the unit will not operate On some models the transformer secondary circuit includes an interlock switch at the cleaning valve If this switch is open no control
131. MOTOR 1 BK BK T WIR FYSENA 1 n 1 1 2 3 DRAN TIMER I CONTROL BOARD IW BR 1 2 1165 4 0 WB BN CONTROL SWITCH FLOAT SWITCH 7 gi 6k 229 180 CONTROL SWITCH A WR WIBU P DISPENSER WK T E 2 m T WATER CONTROL RELAY WIR 7 14 eS 10513 CONTRO RELAY 7 BI og nm DBU DBU 252 a tral L oe VALVE WATER SWITCH DISPENSE e WR 7 lt DRAN WATER VALVE 367 3A4818 01 2 10 1 15 DCM 270BAH OS WIRE CCLOR CODE BR BROWN BK BLACK T5069 DBU DARK BLUE F LBU LIGHT BLUE THERMAL CRAY 0 ORANGE P PINK R RED 4 VIOLET Y YELLOW m W BK WHITE BLACK ts W BR WHITE BROWN W BU WHITE BLUE W O WHITE ORANGE W R WHITE RED MOTOR THERMAL PROTECTOR GEAR MOTOR GEARMOTOR NE PROTECT RELAY ICE DISPENSE RELAY SOLENOID TRANS o 0 FUSE 1A 2w GR i DISPENSE hs WATER VALVE 1097 FUSE 05A WER FLUSH WATER VALVE CONTROL WATER VALVE TIMER BOARD FLOAT SWITCH 80 5 E 1 WATER CONTROL RELAY 368 10 1 15 DCM 500BAH DCM 500BWH WIRE COLOR CODE BK BLACK BR BROWN BU BLUE DBU DARK BLUE GY GRAY LBU LIGHT BLU
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134. Plug Spray Tubes Cleaning Valve Thermistor Receiver Tank Liquid Line Valve High Pressure Heat Exchanger Switch Hot Gas Valve Check Valves Strainer Water Pump 10 1 15 117 KM 1800SAH 3 SWH 3 KM 1900SAH 3 SWH 3 KM 2000SWH3 KM 2100SWH3 img dumq 22224 Jj SOA UA uan IPAD IIG sep JOH JO SIULIOU L our YMS Suruo YStH suey CHD ET Jesuepuo Ajddng 13M IWM JL 1 amp euds 7 soqny amp euds 10 1 15 118 KMS 2000MLH w SRK 20H jeisouueu eur eBreuosiq Josse1duio2 euri efueyosiq YMS eunsseJg u6iH eur SIOUIENS set 55000 Jopenunooy 5 2942 YOUMS 18014 Set 10H Jeutegs Jeug eur JO SIWOY JeBueuox3 L H
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137. The KMS series utilizes the G control board and includes the pump harvest assist features to assure that all ice is removed during harvest It also includes dual control switches A ser vice switch allows for automatic draining for cleaning and sanitation Service shut off valves are used on the head and condenser for ease of installation and to allow for refrigerant pump down during service repairs These are standard service valves that close when front seated A Hot gas valve and liquid line valve is located in both the head and the condensing unit These dual valves are used for isolation and to assure proper refrig erant flow The SRK unit also has a suction line accumulator to protect the compressor from liquid flood back during and after harvest A single power supply circuit is connected to the SRK con densing unit on the roof A 6 lead color coded wiring harness connects the SRK to the KMS head and supplies control volt age to the head The KMS system operation is common to the standard KM models See the service manual for additional information on operation and diagnosis of the additional KMS components 88 10 1 15 KM Evaporator The KM product with it s stainless evaporator plates has been in production since 1988 There have been minimal changes in the design however there are three designs of stainless KM evaporator plates used in this series since production began The additional plate designs incorpo
138. amp draw This acts as a primary safety for the gear motor A secondary internal thermal overload is included in the motor wind ings Both will work in conjunction with the protect relay to shut the unit down The gear motor current protector serves as a back up for the bin control on other models These safety s protect the Flaker or DCM models from internal failures Voltage protect relay This relay will shut the unit off in case of a voltage surge and automatically restart the unit when the voltage is correct High pressure switch All Hoshizaki ice machines include an automatic reset high pressure safety switch to shut down the unit in case of high head pressures Fuse protection A lamp buss type fuse is utilized in the control circuit Smaller units like the DCM 240 and F 300 have a fuse in the incoming power circuit mn 296 10 1 15 7 Short cycle protection timer 1 minute time delay is included in the start up sequence to protect against short cycling the gear motor or compressor Note The F A Board has a 5 minute time delay 8 Compressor protection is provided either internally or by means of an external motor circuit protector This is an automatic reset thermal type overload 9 Some F 1500 2000 have a spout safety control to shut down the unit if the bin control fails for any reason This is a manual reset safety and will notify the technician by means of a indicator light on the control box To
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140. are defective Coverage Chart ITEM PRODUCT PARTS LABOR Total Unit AM 50B 2 Years 2 Years C 101B 2 Years 2 Years Standard Bin 3 Years 3 Years from Jan 2012 DB DM 3 Year 3 Year F DCM from Sep 2010 3 Years 3 Years KM Cuber 3 Years 3 Years Upright Bin 5 Years 5 Years Compressor amp KM Cuber 5 Years 3 Years Air Cooled Cond F DCM 5 Years 3 Years Coil Evaporator Plate KM Cuber 5 Years Evaporator Auger F DCM 3 Years 3 Years Gear Motor Assy Accessory Drain Pump 1 Year Other 90 Days See Warranty Statement supplied with the unit for details Warranty valid in United States Canada Mexico Puerto Rico and U S Virgin Islands Contact factory for warranty in other countries territories or possessions 10 1 15 F DCM Installation General Specs The ice machine is not intended for outdoor use Operating Conditions ALL MODELS Rans Remote 20 122 F denser Water Supply A 45 90 F Temp Water Supply A 10 113 PSIG Pressure Allow 6 clearance at rear sides and 20 on top for proper air circulation and ease of maintenance or service Plumbing Requirements Water Supply moa All F DCM 3 8 OD 1 2 FPT Water cooled condenser units require two separate sup plies sized as per list above Drain Connections All Bins 3 4 OD 3 4 FPT C 100 101BAH 1 2 OD 1 2 FPT Flakers DCM 3 4 OD 3 4 FPT Some
141. bearings are pressed into the housing 4 and extruding head 9 The mechanical seal 6 and o ring 5 seal the lower end of the evaporator system Note that cubelet ex Flaker extruding head tuding head above has wider spacing to ex Smaller Spacing 9 trude cubelet shape trude ice Cutter makes Breaker breaks cubelets flakes and moves them and moves them toward towards spout spout 10 1 15 Flaker Sequence of Operation The Hoshizaki Flaker utilizes a solid state sequence timer board to switch the components on and off as needed This sequence of operation is accomplished through a series of timers within the solid state timer board The sequence for the standard timer board 437305 01 02 and 4A5591 01 is as follows With proper voltage and water supplied to the Flaker and the FLUSH and ICE switch is in the ICE position power is sup plied to the inlet water valve The unit will not start unless the reservoir is full and both floats on the dual float switch are closed in the up position The operation is then turned over to the bin control If the bin control is closed and calling for ice the gear motor and condenser fan motor are energized One minute later the compressor starts As the refrigera tion system cools the water in the evaporator ice will start to form within 2 to 5 minutes This depends on the inlet water temperature and ambient conditions Ice production will con
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143. dia phragm Below you will find an exploded view of the valve assembly and instructions for reassembly ofthe valve When replacing the diaphragm and re assembling the valve it is important that the plunger is in the correct position This plunger has a white plastic seal on one end and is metal on the other The white seal end of the plunger must be in contact with the diaphragm in order for the valve to work correctly CKD Valve Breakdown SCREEN PLUNGER WHITE PLASTIC SEAL MUST TOUCH DIAPHRAGM VALVE BODY 4e PLUNGER DIRECTION PLUNGER HOUSING COIL 71 DIAPHRAGM PLUNGER PLUNGER SPRING SCREWS 85 10 1 15 Note Because of the different flow rates it is important use the correct OEM water valve when servicing a Hoshizaki ice maker Use the following chart to identify the correct valve diaphragm or inlet screen CKD Valves KM 251 255B 3U0152 01 J248 662 4A3362 01 KM 201 260B 3U0150 01 J248 647 4A3362 01 KM 320M KML 351MWH KML 451M DKM 500BAH DKM 500BWH 3U0111 04 J248 072 4A3362 01 KML 250 350 351 KML450 631 KML 351MAH KM 461 501 KM 515 901M KMD 300M 450M 3U0111 03 J248 033 4A3362 01 KML 600M KM 500 KMS 830M 600 650 900 3U0111 02 J248 032 4A3362 01 KM 1340 1601M KMD 850M 901M KMS 750 822 1230 KMS 1300 1400 1800 20005 300136 01 248 106 4A3362 01 24005 1300 1600 300111 01 J248 030 4A3362
144. dtd Y 0 9 0 61 4 674 662 aie WA oa yor 3503 E 0 5 2 061 3 674 992 10 00 eur x ISYHd 1 MUS 10 1 15 232 KM 1300SAH KM 1300SWH KM 1600SWH KM 1601SWH KM 1300MWH KM 1340MAH MWH 0 S6EZVE 13004 031002 81 AINO ERO x EP Ll LEE NE igi ls ES re M i D 3M m n Wi Bii EC 5 K MOHE i 300 IN to Co EN 0 go 6o nell li f to 9 70 lo 5 4 K 80 MINIS 1 ed TENOR m to gt 2 js lt gt DEF YO IND VN oM LAGH 380A 1709 062 802 233 AA KM 1300SAH3 KM 1300SWH3 FUSE 10A W BR 208 230 60 3 INTER LOCK W ONLY AIR COOLED MODEL WIRE COLOR CODE BR BROWN W HITE BK BLACK RD 0 ORANGE GY GRAY P DBu DARK BLUE NIOLET
145. generally cause a freeze up 4 Back of Cube Melted Away a This can occur if the evaporator plate is scaled up De scaling is required b Insufficient water flow during harvest can also cause the flat side of the cube to melt away Check for a plugged inlet water valve screen plugged external filter low water pressure or a small water line size Note Either or both of these problems can cause this symptom 5 Small Cube Note Size will depend on how much water is in the reservoir a Can be caused by a low volume of water at the beginning of freeze Check for adequate water flow during harvest See item 4b b If the pump out check valve is stuck open or has a weak spring the water left in the reservoir will be pumped out during the first five minutes of freeze This results in a short cycle and slivers of ice or small cubes Any loss of water whether by leak water trail or loose stand pipe can cause this problem Note Freeze ups can be caused by 2 3 or 4 in any combination Below are the 3 most common causes 1 The number one cause however is a dirty scaled up water System or evaporator Scales reduces water flow through the water distribution system impedes heat transfer and will not allow cubes to harvest from the plates A thorough cleaning will eliminate most freeze ups Hard to remove scale will require extra effort and a stronger cleaning solution 2 The second most common reason for freeze up
146. in the factory position Settings are for thermostatic bin control models For units with mechanical bin control S7 is ON Models listed as E or H3 are individual units Models listed 3 includes single and 3 phase units Factory Dip Switch Settings Model Serial code 1 2 3 4 15 6 7 8 9 10 Kw280MAH __ __ 1 20 ojojojt titjojojojo KM 461MWH KM 501MAH KM 501MW R 1 4 KM 600 650MAH KM 500MAH E KM 515MAH E KM 515M H KM 1900SAH 3 KM 1900SWH 3 Kwe30MAR _ KmesomaHE KwesoMRH ojojojo tr1jojojoj o SWITCH CODE 1 ON 0 32 DE 10 1 15 prr 1 o KM 900M H 3 KM 1300MWH KM 1340MWH KM 1600MRH 3 KM 1601MRH 3 KM 1300MAH KM 1300S H 3 KM 1340MAH KM 1800SA WH 3 KM 2000SW RH3 bosse KM 1340MRH A C CIEL ER basso o o o o so v o Jo o eose o 66 o v v o o EEE
147. infrared sensor bin control The design incorporates the nec essary circuitry for use on other DCM models at a later date For now it is utilized on all FD FS select DCM s and future F models This board will not replace 437305 01 or 4 5591 01 F A part number 2A4296 01 includes the following alarms The alarm will repeat every 5 seconds until reset reset the manual alarms turn the power OFF and Back ON 1 1 Beep Low Water Safety This alarm will occur if wa ter supply is interrupted It will automatically reset when water supply is restored 2 2 Beep Control Switch in DRAIN position This alarm will occur if control switch is left in the DRAIN posi tion for more than 15 minutes It will automatically reset when control switch is moved to ICE 3 3 or 4 Beep High Pressure Alarm a A 3 beep alarm will occur if HP switch activates opens first or second time in 1 hour Unit will shut down and alarm will automatically reset 10 1 15 when HP switch closes b A 4 beep alarm will occur if HP switch activates third time in 1 hour The machine will shut down and must be manually reset The high pressure issue must be resolved in this case 4 5 Beep Freeze Timer Alarm This alarm will occur if lower float switch does not open to refill reservoir within 30 minutes of the upper float switch closing The machine will shut down and must be manually reset System diagnosis is required in this case 5
148. is low water flow Always check the evaporator and water flow first then go to other checks when diagnosing freeze ups 3 The third most common cause for freeze ups is a bin control that will not shut the unit off when the bin is full 10 1 15 Freeze Up Check List MODEL INSL DATE FAIL DATE Single Stacked 1 Single unit or stacked equipment YES NO 2 Condition of float switch Dirty float Are contacts opening when float is down 3 Confirm Is water pump always running during freeze cycle 4 15 thermistor properly mounted 5 Is the TXV bulb tight and insulated 6 Is water flow adequate to fill sump to overflow last 60 90 seconds of a normal harvest 7 15 the water line sized properly Small units up to KM 900 3 8 Large units 1 2 If not map 8 Do some ice cubes remain on evaporator plates when next freeze cycle starts 9 For stacked side by side units are separate water lines supplied 10 When evaporator plates are dry do you see scale Scale color Date evaporators were last cleaned 11 Will thermostatic bin control cycle unit OFF within 6 seconds when in contact with ice 12 Have you checked the bin control to assure the capillary is not touching a hot cold source 13 Are the evaporator separators blue hooks and cube guides positioned properly 14 Does Mechanical bin control cycle unit off in 6 15 second
149. is needed to address wa ter hardness or high mineral content The filtration systems provided by Hoshizaki are consid ered basic filtration with minimal water treatment capabili ties There are many possibilities for water treatment In gen eral a filter median is used for sediment dirt and trash Car bon is used for taste and odor and polyphosphate is used for scale control There are also other possibilities such as a water softener not recommended for F DCM s or in some cases reverse osmosis RO RO can be aggressive but is acceptable if the RO output has a neutral pH of 7 Contact your local Hoshizaki distributor or a water expert for the best recommendation for your area Note Filtration or treatment must be sized properly to be effective Inadequate flow rate will cause prob lems with production and operation of the ice maker 10 1 15 General Installation As always you should follow the installation instructions that are provided in the instruction manual supplied with the unit Three things are critical for a proper F DCM installation 1 The water temperature should fall within the 45 F to 90 F range Note Colder water can cause excess stress on the auger gear motor which may activate the gear motor overload 2 A filter system is very important in poor water quality areas as high mineral content can cause premature bearing wear poor production and inefficient opera tion 3 The un
150. is replaced This screen must be ordered separately when the valve body is ordered Always take care to protect the valve body and screen from excessive heat from the torch when replacing it 84 10 1 15 Inlet Water Valve Hoshizaki uses an inlet water valve solenoid to fill the reser voir for ice making This constant duty solenoid valve is very reliable however in areas of hard water and high levels of chlorine the diaphragm is susceptible to failure Water qual ity is constantly changing and local municipalities are now adding higher levels of chlorine chloramine and chlorine dioxides to the water These agents can damage rubber parts and affect the diaphragm life Newer valve diaphragms use an improved viton material to reduce deterioration The diaphragm is made of rubber and ABS with a bleed port on the inside ABS piece This port allows the pressure to balance on the top and bottom of the diaphragm so that the valve will open and close properly with the spring pres sure If the rubber becomes dry and brittle or the bleed port is plugged with trash or debris the valve will leak by In this case some valves can be disassembled for cleaning and the diaphragm and inlet screen can be cleaned or replaced It is important to remember that the warranty covers repair of defects and not cleaning Should the valve be scaled or dirty it should be cleaned and billed to the customer As noted some water valves include a replaceable
151. models have 2 drain outlets Drain lines should never be sized smaller than the factory recommendation Undersized drain lines can cause water backup and result in water damage 10 1 15 Water Cooled Condenser Outlet Flaker and DCM models have 3 8 FPT outlet The con denser drain should be piped separately Hoshizaki recommends that the ice machine drain and bin drain be piped separately to the drain connection point al lowing 1 4 per foot fall Hard pipe PVC or Copper is recommended for drain lines Flex tubing should not be used as the insert fittings tend to restrict the water flow and flex tubing is easily crimped and can cause overflow issues Vented Tee A 6 vent tee as shown in the drawing is recommended on any drain connection to allow for improved water flow This tee can also allow for ease of cleaning if the drain plugs with scale or bacterial growth Pour in Chlorine bleach routinely to clear slime and bacterial growth Reservoir Drain 3 4 POV or equivalent Note Restricting the drain size will cause water to over flow the reservoir or drain pan 258 10 1 15 Flow Rates The minimum flow rate requirements for Hoshizaki F DCM ice maker units are as follows C 100 101BAH All DCM s X 2 for ice makeup and water dispensing ELM Filtration Hoshizaki recommends that filtration be installed on our products The type of filtration will vary with local water quality In some cases treatment
152. on the rear panel of the ice maker it cannot be read when the back of the ice maker is against a wall or another piece of kitchen equipment Therefore the necessary electrical and refrigera tion information is also on the rating label found by removing the front panel of the ice maker We reserve the right to make MAR TH 5V LRA 10W 30W 15A PSI OZ changes in specifications and design without prior notice 10 10 1 15 Warranty Information Registration Warranty registration is available online and a registration card is supplied with the equipment Registration must be must be completed to initiate warranty The warranty begins on the date of installation if registration procedures are followed If registration is not completed the warranty date will be the date of sale or date of shipment from the factory respectively Warranty Coverage The warranty will cover defects in material or workmanship under normal and proper use and maintenance service as specified by Hoshizaki Coverage for parts and labor is limited to the repair or replacement of parts or assemblies that in Hoshizaki s opinion are defective Coverage Chart ITEM PRODUCT PARTS LABOR Total Unit AM 50B 2 Years 2 Years C 101B 2 Years 2 Years Standard Bin 3 Years 3 Years from Jan 2012 DB DM 3 Year 3 Year F DCM from Sep 2010 3 Years 3 Years All KM Cuber 3 Years 3 Years Upright Bin 5 Years 5 Years Compressor amp KM Cube
153. packing is used to seal the inlet water valve and dispenser valve connection Always assure that the washer is OK and in place when reconnecting the valve Inlet water dispense valve current part number Pane Washer _ C 100 101 4 5251 05 1 14 413854 03 10 25 C DCM 270 4A0865 01 22 ohms 4A0867 01 DCM 300 500 750 751 10 25 F 300 gt 1 F 330 gt A 0 F 450 500 800 801 1000 FD 1001 FS 1001 1022 F 1500 gt 1 FS 1500M gt B 0 F 2000 gt B 0 F 300 V 2 gt F 330 4A5309 01 55 ohms 413854 03 FD 650 10 25 C FD 1001M H C M J C F 1001M H J F 1500 2 gt F 2000 1 gt F 1501 2001 eck coil with an ohm meter to verity windings are OK Drain Valve part numbers 4 5530 03 1270 ohms 10 25 DCM 270 300 500 750 751 4 2772 01 46 ohms F 300 330 450 500 800 801 1000 1001 10 25 C F 1501 2001 F 1001M_J F 1501 F 2001 4A2772 02 46 ohms 10 25 10 1 15 Auger Inspection Bearing Replacement A visual inspection of the auger bearing shaft surface is rec ommended annually in poor water areas The steps for this inspection is as follows Note If heavy scale is present the auger may be difficult to remove In this case you will find it helpful to soak and clean the evaporator system following the instructions provided before you attempt to remove the auger 1 Follow steps 1 through 5 of the bearing inspection p
154. reset this safety turn the control switch OFF and back ON This re sets the holding relay circuit and turns off the light Note This feature was removed from F 1500 2000M in late 2009 production and after Additional safeties are featured in the new universal F A control board 10 During normal operation a freeze up protection will shut the unit down on the manual reset safety and sound a 5 beep alarm if the inlet water valve does not open within 30 minutes of the last activation 11 Additional gear motor protection In conjunction with the 3 gear motor safeties the unit will shut down on the manual reset safety and an 8 beep alarm will sound if the gear motor protect relay fails to energize 12 Bin control protection If the secondary mechanical bin control actuates with the bin control selector switch in the ON position the unit will shut down on the manual reset safety and a 9 beep alarm will sound 13 Short cycle protection The F A board has an au tomatic ice purge cycle which allows the gear motor to start 30 seconds after the reservoir is full and delays compressor start up for 5 minutes This allows the ice to be removed from the evaporator before the compressor starts if the bin control reactivates quickly This feature can be bypassed for diagnosis by pressing the Service button after the Gear motor starts 10 1 15 Gear Motor Checkout The following check list is designed to help you find the reason
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156. settings are as follows R404A Pressure Switch Chart Capillary type part cut out cut in Models psig 284 21 3 DCM 270BAH gt T 2 433441 05 384 DCM 500 750BWH V 2 21 SRC 10H gt A 0 C F 300BAF A 1 K F 500BAF F 450M gt V 0 F 800M H F 801MAH V 1 F 801MWH gt U 0 H F 1001M H C 1 F 1500MAH gt 0 F 1500MWH MRH V 0 F 2000MWH MRH V 1 DCM 500BAH gt V 1 433441 07 412 327 DCM 750BAH gt 0 21 3 21 3 i 3 426 341 21 3 21 3 F 330BAH 463180 01 DCM 300BAH 463180 04 412 327 DCM 500BAH V 2 214 1213 DCM 750BAH V 1 DCM 751BAH F 1001MAH MRH C2 F 2001MRH SRC 10H A 0 D gt DCM 500 750BWH V 1 463180 05 384 284 DCM 751BWH 20 921 F 300BAF A 1 L gt F 450M 1 gt F 1001MWH C 2 1500 1 gt F 1500MWH MRH V 1 F 1501M F 2001MWH F 2000M 2 gt SRC 14H 10 1 15 Bin Controls Flaker models will use one of 3 types of bin controls The type of bin control will vary depending on the unit style or model and serial number 1 Thermostatic Bin Control The thermostatic bin control TBC is optional for use with Cubelet dispenser applications Optional TBC Kit for dis penser applications available through sales It is a secondary control that operates the control board The board switches 115 volts to the components as the sequence dictates A thermostatic capillary bulb is mo
157. temperatures dirty cond cond fan circuit issue intermittent fan motor or bad capacitor water flow to W C cond water regulating valve operation refrigerant system issue H P switch cut in cut out Same as 3 beep issue must be resolved Check for sticking F S D V leaking by evaporator freeze up Check for low supply voltage loose connections or brown out Check for high supply voltage voltage spikes Check for scaled evaporator or auger bearing wear Evapora tor freeze up refrigeration issues Check G M voltage and connections G M circuit blown G M fuse control board issue Verify bin control type and dip switch setting check for sticking Manual Manual Auto Auto Manual Manual 10 1 15 F A Control Board Voltage A 24VAC control transformer is connected to the control board to operate the external control components Internal to the control board is a 5VDC supply for monitoring the following switches during the ice making process Control Switch CS High Pressure Switch HPS Float Switch FS Compressor Control Relay Gear Motor Protect Re lay CCR GMPR and Bin Control 2 mechanical stand alone or backup When 5VDC is present across any of these switches the switch is open When checking the board during operation you could measure 115VAC 24VAC or 5VDC depending on the vari ous connector pins Voltages are not noted on the con trol board Use the pictorial board diagram provided
158. the technicians handbook covers all F DCM Auger style Hoshizaki H Series ice maker models Additional technical information full parts and service manuals are available for review and download on the Tech Support page of the Hoshizaki web site See www hoshizakiamerica com for manuals Tech Tips and additional technical information on Hoshizaki products See Tech Spec s 480024 purple pocket guide for older models using R 12 502 refrigerant See Tech Spec s 80021 green pocket guide for E Series models using R 22 See Tech Spec s 80045 orange pocket guide for F and early H series ice maker models These guides can be downloaded from the Hoshizaki web site or purchased through your local Hoshizaki Distributor A print out of the guides will be on a 3 5 x 7 format Set printing preference if larger format is needed FOR FACTORY SUPPORT CONTACT HOSHIZAKI TECHNICAL SUPPORT AT 1 800 233 1940 E Mail techsupport hoshizaki com 10 1 15 Model Nameplate HOSHIZAKI ICE MAKER MODEL NUMBER DCM 750BAH SERIAL NUMBER AC SUPPLY VOLTAGE 115 120 60 1 COMPRESSOR 120V 10RLA 70LRA GEAR MOTOR 120V 3FLA 1 4HP FAN MOTOR 120V 1 0FLA 50W AGITATING MOTOR 120V 1 8FLA TOTAL 110W DISPENSING MOTOR 120V 0 9FLA 55W OTHER 120V 0 6A MAXIMUM FUSE SIZE 20 AMPS MAX HACR BREAKER USA ONLY 20 AMPS MAX CIRC BREAKER CANADA ONLY 20 AMPS MINIMUM CIRCUIT AMPACITY 20 AMPS DESIGN PRESSURE HI 460PSI LO 290PSI REFRIGERANT 404A 1 lb 7 1 oz MOT
159. thoroughly flushed prior to advancing to the sanitizing step Use additional cleaner to clean spout and removable parts Strap Packing a Proximity Switch ee lt Bin Control Shaft Assembly Mount Actuator Sanitizing The system should be sanitized using a solution of water and 5 2596 sodium hypochlorite chlorine bleach Any com mercial sanitizer recommended for ice machine application is acceptable Remember Never mix cleaner with sanitizer Recommended Sanitizing Solution Mixture C 100 101B 1 25 Fl oz 2 5 Gal F FD FS models 2 5 Fl oz 5 0 Gal 10 1 15 DIAGNOSTIC TIPS WATER SYSTEM 1 Scale buildup will impeded heat transfer and effect ice production and quality Scale will also cause sticking com ponents such as a sticking mechanical bin control or float switch In the case of poor ice production poor ice quality or intermittent MBC or F S operation do a thorough clean ing before diagnosing a failed component 2 Always check and clean the inlet water valve screen dur ing PM s 3 Check water flow and pressure to the ice maker during the reservoir fill cycle Assure good water flow to the ice maker by checking the pressure guage reading of the water flowing to the ice maker rather than just reading the static pressure on the filter 4 Replace filter cartridges routinely as needed 5 If you are loosing water and short cycling the water fill look f
160. tinue until the bin control is satisfied opens The shut down process is very simple On the F 450 801 1001 1500 2000 units the entire unit shuts down within 6 seconds after the bin control switch opens On the F 330 90 seconds after the bin control switch opens the compressor and fan motor stops one minute later the gear motor stops F A Board Features Bin Control Selection The F A board can be used with the infrared sensor bin control by placing S 7 dip switch in the ON position A mechanical bin control can be connected and used for a standard storage bin application or for DCM s The mechani cal bin control setting is S 7 dip switch in the OFF position Periodic Flush Beginning with the F 450M and larger flakers a periodic flush or drain cycle is included A 12 hour mechanical timer will cycle the unit down and open the flush valve which allows the complete water system to drain The unit will remain off for 15 minutes which allows any ice remaining in the evapo rator to melt and flush the evaporator walls and mechanical seal out The inlet water valve is not energized during this flush period The unit will automatically restart after 15 20 minutes on the flush timer The F 330B will flush drain down when the bin control is open It is important to remember this when checking a unit 10 1 15 Depending on the timing you may need to advance the mechanical timer to start the unit for checkout This feature is included
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162. voltage is supplied to the K2 connector so the unit will not operate Always check the cleaning valve position and interlock switch if the Power OK LED is off Note Because ofthe voltage protection if the control trans former fails it is important to use the correct OEM part as a replacement to provide proper control voltage KML amp Small KMD Pump Assemblies KML units use a vertical shaft single winding pump assembly The original assembly did NOT include a capacitor The most recent pump and service replacement does The assembly is NOT rebuildable and includes the mounting bracket as shown 10 1 15 KM Pump Motor Assembly The standard KM pump assembly has a dual winding PSC motor with an internal overload The motor has a cast hous ing and sealed stainless steel roller bearings No lubrication is required for these roller bearings All front end parts are available and can be replaced cracked housing broken impeller or leaking mechanical seal are the most common failure items and can be replaced Ahot pump motor will likely shut down on the internal thermal overload This can occur if the pump motor runs slow or overheats In this case allow the pump motor to cool and check the pump motor capacitor If the capacitor is good it is potentially scale a bad motor or tight bearings Always replace the pump motor capacitor if the pump motor fails See the wiring diagram reference chart for the pump motor capacitor r
163. weight X 72 24 hour production The most efficient operating conditions for an ice maker is 70 F air temperature and 50 F water temperature The performance data charts show a wide range of operating conditions For accuracy be sure to physically check the air and water temperatures at the ice maker and use these to find the expected production and operating parameters for your model on the performance data charts It is important to understand that ambient and water tempera tures affect ice maker production Ice production will decrease as ambient and water temperatures increase Good air flow around the unit is important for achieving the best efficiency 10 1 15 Preventative Maintenance Preventative Maintenance is the key to long equipment life and maximum efficiency Hoshizaki recommends preform ing the following maintenance steps annually The PM fre quency will depend on the local water quality and operating conditions Preventative Maintenance Steps 1 Clean the removable air filter Hoshizaki air cooled units include a front accessible and cleanable air filter This filter collects dirt dust and grease It can be cleaned with warm soapy water Hoshizaki recommends cleaning the air filter twice a month or more depending on conditions 2 Service the external water filter system if equipped and check and clean inlet water valve screen 3 Clean and sanitize the water system and bin A cleaning label with detailed i
164. when the bin control opens The unit should shut off within approximately 3 to 10 seconds when the control is adjusted properly If this does not occur adjust the ther mostatic control by turning the screwdriver slot Adjusting towards warmer will allow the unit to shut down quicker This adjustment should be checked at installation when diagnosing a bin control problem or if a replacement bin control is installed 10 1 15 b KM s from the KM 280 901M and KML units have a bin control mounted in the ice drop zone area KM 1300M S and larger units have a drop down bracket that must be dropped down secured and plugged in atinstallation The ice must contact the bulb to op erate the bin control Some bin applications require an optional extension bracket or relocation of the bulb mounting to allow for proper shut down Check this positioning if the control is adjusted properly and ice continues to back up into the evaporator section As sure that the extension bracket is installed The symptoms of a bad thermostatic control are STUCK CLOSED The unit continues to operate when the bin is full This allows ice to back up in the evaporator compartment and generally causes a freeze up condition This will also occur if the bin control is adjusted too cold or fully CW Check the adjustment and bulb location before you diagnose a stuck bin control STUCK OPEN The unit will not start in the ice position An easy method to
165. wire on mechanical control K4 connector 0 225 Dm 10 1 15 KMD 700MAH MWH KMD 850MAH MWH KMD 900MAH MWH KMD 901MAH MWH 300W 131002 AINO EON A 130 3778 yuva nea U3HH03SNVML 9 d i auo 048 AS AVY AD S INAO 0 E DV I8 M NMOUS 58 25 w 3002 80102 E IANYA AWA AWA bot su 4 Zot 9 e aio b doi 5 WOE 0 9o 4 NOH Lor v 59 8 8o i 5 A u N Olo 4 A Zoh 5 LVO14 2 Lo 2 ol suis 3 L dv 15 06 DUNS T Lo 17041802 t E 1 E 9 VOL 09 0 2 802 i YOLSINYSHL 3504 YOLIVINOD JITSNSVW i oH ug V Gf 5370812 10 1 15 226 wiring harness run capacitor 2 Line valve only used on KMD 901M Note 1 Generic diagram KMD 900M has 35MFD 3 KMD 700 900M use E board and resistor KMD 700MRH KMD 850MRH KMD 900MRH KMD 901MRH 00 0677 MOTIJA A 1370 A INW 3 0 90 3SY Nyu
166. you lower the evaporator Do not use mineral oil as it may damage the o ring material Be sure to use new seal bolts and torque them properly 304 10 1 15 Flaker DCM Production Check Performing a production check is an excellent way to prove proper F DCM operation A production check on these mod els is a simple process To check the production you will need a small trash bag dish tote bucket or pan to catch the ice and a set of scales to weigh the ice For best results you should always check production on a unit that has a cold evaporator After the unit has operated for 10 to 20 minutes catch the ice production directly from the evaporator for 10 full minutes Weigh the ice to establish the batch weight Multiply the batch weight by 144 for the total production in 24 hours Some technicians prefer to catch the ice for 20 minutes and multiply the weight by 72 for a more realistic production check It is true that a longer catch is more accurate how ever it doubles your test time and may only show a 1 to 296 difference in total production Once you know the 24 hour production check it against the unit specifications for your ambient and inlet water conditions on the performance data chart provided in this handbook If the production is within 1096 of the data on the chart the unit is operating within spec Formula for 10 minute catch Ice weight X 144 24 hour production Formula for 20 minute catch Ice
167. your gear motor failure occurred 1 Normal Amperage The amperage for gear motor should be listed on the nameplate Answer the following questions to discover the possible cause for your failure 1 Is Ambient Temperature above 45 degrees F Cold water 2 Note causes GM stress and higher amp draw Does the unit have the wrong Extruding Head Check the Extruder Type Is it a Flaker or Cubelet style The cubelet style head will have smaller openings for the ice to extrude Does the unit have the wrong Cutter The cutter should match the extruding head style Flake or Cubelet Do you have a Damaged Extruder Look for the follow ing imperfections A Dents B Fins Bent C Scale D Other Resistance A dirty or scaled up evaporator increases stress and can cause the gear motor overload to trip or fuse to blow 5 6 Does the unit have the Correct Auger 1 the auger a dual flight auger Double Spirals Check the parts breakdown for the correct auger style Check the Voltage Supply and circuit amperage Is this unit on it s own dedicated circuit The supply voltage should be within 10 of the rated voltage when the unit is making ice 7 Check the Running Voltage at the gear motor While 8 9 the unit is making Ice Inspect bearings for wear Use bearing gauge Are the bearings OK If the upper bearing is worn both bearings should be replaced Check Evaporator Cylinder Barrel for sign
168. 00MLH w 11 Ibs R404A SRC 14H Heat Load for AC amp Cooling Tower The heat of rejection information provided by model number in the following chart should be used for sizing air conditioning equipment or water cooled cooling tower applications _ 264 10 1 15 gt Flaker amp Load Chart r Water Cooled DCM 270B DCM 300BAH DCM 500B 5 438 DCM 750B 7 945 DCM 751B 8 500 DKM 450 6 900 DT 400B C 100BAE AD F 330BAH C F 450MAH C F 800M H C 6 270 F 801M H C 5 155 F 1001M H J C 9 100 7 110 F 1500 1501M H C 15 323 10 100 F 2000M H J C 15 530 FD 650M H C 6 800 4 500 FD 1001MAH C 8 800 FD 1001M J 9 100 7 110 models 1 400 FS Condenser Heat Load Chart BTU hr SRC 10H 10 500 SRC 14H 17 700 Figures shown are at 90 F air temp 70 F water temp conditions For water cooled applications always allow for a pressure differential of 10 psi across the water cooled condenser This means that the inlet pressure must be at least 10 psi higher than the outlet pressure to allow for proper water flow through the water regulating valve and condenser 10 1 15 __ 6 101 2 2 owe 9 e pedo 60 80 0 waaoa
169. 01 Replacement Water Valve Gasket The replacement rubber gasket or packing valve washer for all valves is 413854 03 This gasket must be in place or the inlet water valve will leak Replacement Water Valve Screen Replacement screen for all CKD valves SP9200010 This is an 80 mesh screen designed to catch debris from the water System It should be checked during regular maintenance and replaced if damaged 86 DE 10 1 15 Invensys EATON and Other Valves 500 4 1176 03 1268160 Non replaceable KMD 700M 900M KM 630 M E 4A1176 01 126757 0 Non replaceable KM 900M50 1601 18005 4A1176 04 26144 Non replaceable 1900 2100 2501 KM 1300S E 4A1176 02 126756 0 Non replaceable KM 1301S E 5 1122 1401 1122 1401M 4A5251 08 Non Non replaceable 1601 19005 4A5251 04 V19 Non replaceable KM 2100 25008 KMH 2000S KMS 2000M 4A5251 02 Non replaceable Replacement screen for valves above is part number SA0019 Water Valve Coil The coil or solenoid for ALL KM water valves operates on 115 volts The coil is not replaceable on any water valves Check the coil for proper voltage during the fill cycle If the valve energizes and hums but does not open or flow check water supply check for sticking valve or plugged screen The most common problem with a water valve coil is an open winding If power is supplied orange wire and the valve does not energize check the c
170. 09 2401 T 09 STT Ajddns 2 HVINOSt J V1VG 10 1 15 341 GE VE 56 ve 55 SE VE TEE LZE 8 cee 55 ZEE LTE al dwa ANO ST ST ST ST E9Z 185 591 585 90 s1nou pz S6C oze J Ime VSt X sqi 8y 8 001 ze 06 Lc 08 04 2 3 quaiquiy T 09 STT VV OT uv 10559 05 6301 2 3 8005 4 Lv Sy v Lv Lv Ly Tv ze 06 ev v Sy lv I7 0 4 v vb Tv Sy vv Lv vv lv 6 0S 6 2 782 855 6 2 782 LZE 6 2 780 00 6 2 780 ELZ ze 06 spe um 8 6 5 7 167 5 7 595 0 702 c LEE 702 OTE 702 42 282 702 42 05 05 ET SC OT 8 Sc e 6 EZ e OT 61 76 06 uo 6 Sc e OT EZ OT 8 EZ 6 61 0 6 Sc e 6 EZ ET 6T OT 8 61 05 4 13 086 vvv 167 S6b 655 067 155 565 265 c 06 ety 9 zes ets vss 65 1 5 too 9 iz o 890 8 vsv ezv 525 06 tes 695 9 5
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172. 10 1 15 the ice in the bin rather than dispensing In this case there is nothing wrong with the ice maker Before installing a cubelet model on a dispenser call the dispenser manufacturer with the model and serial number and verify that the dispenser will dispense cubelet ice Some manufacturers can supply a kit to modify the dispenser while others make a special model or do not offer cubelet dispensing Remote Applications When installing a remote application the unit condenser combination must match with the above chart for proper unit operation and efficiency Check service amp parts manuals on web for proper model match and parts information Remote Condenser Chart Condenser Remote Model Number s Model URC 5F F 1001M FD 1001M URC 14F F 1500 1501M URC 22F F 2000 2001M SRC 10H FS 1001 1022MLH SRC 14H FS 1500MLH Model has 2 possible matches Out of production URC 6F URC 7F URC 12F URC 20F URC 21F URC 24F For out of production models parts are available Use of Non OEM Condensers Aproperly sized non OEM multi pass condenser can be used on Hoshizaki standard remote units with prior written factory approval See service bulletin SB99 00019R1 and follow the instructions for proper approval Mis matching condensers and installing remotes on a non approved remote will effect the unit operation and warranty coverage If you have a non OEM condenser application verify approval and application through Tech
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174. 2 gt 43 lt gt 25 OUI se A d 5 gt gt KM 501MRH has 25MFD run capacitor KM 501 has 243 292MFD start and 35 run capacitor 10 1 15 KML 600MAH MWH MRH KML 631MAH MWH 5 Q 5 gt 2 oe 55 a gt 2 3 EI mue oj 9909 90 9 009990999 2 5 ud 5 1 a a Su Se ez zd ez S S fe E 2 gt 5 loge ss 95 sf e gig 8 E Z 4 gs 55 5 HA o aoc gez x 0 4 EEEF w gt amp gt 5 z c 4 5 Fx 4 OVO 4 V 2 8 m Be T Slol ma mm 7 Sa s 5 7 eg 4 I e i u 5 ae See Eo lt 5 gt ge gt 5 m 29 x 4940 2 E ve 5 lt i ao 5 E B 28 5 5 S 8
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177. 2 10 1 15 Flaker Control Boards The original flaker control board below is HA part 437305 01 and was used on all flakers and the DCM 240 270B units for many years It was a simple sequence timer with no adjustments This board is no longer produced and now subs to the Lancer board HA Part 4A5591 01 437305 01 4 02 4 5591 01 is similar in size and is direct placement with a simple adjustment of the dip switches This board has LED status indicators The Power OK LED will blink when 24V control voltage is supplied The GM and CM LED s will light when the component is energized The dip switch adjustments are as follows DCM 240 270BAH OFF OFF All Flakers OFF The only 115 Volt connections on the board are the black compressor relay terminals The other terminals are 24V control voltage connections This sub board is a direct replacement once the dips switches are set for the ap plication The dip switches are used to set the control shut down time Flakers shut down in 6 7 seconds and the DCM shuts down in 6 seconds after the bin control opens 273 mE 10 1 15 Lancer Board HA 4A5591 01 F A Control Board The F A control board was developed as a universal board with additional safeties longer delay timers audible alarms and dip Switch adjustments for flexibility between models It also incorporates a power supply and connections for the
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180. 4 P ES gt 5 58 oom 80 Se Las l ge wor 208 230 60 3 T lj T m MAGNETIC CONTACTOR R 1 GU 242 10 1 15 KM 1300SRH KM 1340MRH KM 1600SRH KM 1600MRH KM 1601SRH KM 1601MRH LLO S6EZVE 7300W 037002 MIYV AINO EL ty rs ay 2981 o Dye o lo l 300 4070 0 L 6o 4 A W e to A Zo it tE oft sto y 8 Le T YOLDV NOY JI ENIA Ge 5 Han DNIS gt 9 ug lt gt W 1080 NIA aio HER ASII 804 WALNN E 11 09 0180 KK KMS 1400MLH w SRK 14H 3 10 1 15
181. 4 55810 KMS 822 830MLH HS 025125 00 5 8 Soldered connections HS 0251 35 OD HS 0252 55 KMS 2000MLH HS 0243 25 Soldered connections HS 0244 35 OD HS 0245 55 R404 20610 R404 35610 3 8 OD 5 8 R404 55610 OD Note If hard piping or fabricating a line set insulate both lines separately and use Quick Connect Kit HS 2150 except on solder connection models 10 1 15 Remote Condenser Installation on Roof Air Flow out louver Air flows into coil Allow 24 clearance for air circulation Secure Legs to Roof Curb The Remote Con denser should not be more than 33 above the ice maker or more than 10 below it Discharge These distances Line are measured from fitting to fitting Liquid Line must meet all local 277 Dia Hole in codes roof for tubing Seal after instal lation to prevent leaking An S oil trap should be in stalled on the suction line of KMS models at 16 5 if the vertical lift exceeds 20 10 1 15 Line Set Installation Universal line set adapter kits part number HS 2150 for KM and HS 0231 for certain KMS are available if you need to field fabricate your line set Both lines should be insulated separately the entire length of run The refrigerant charge for a new unit is distributed between the unit head and the URC condenser The line set has a minimal holding charge of 15 to 30 psig refrigerant vapor If
182. 5 Board Factory Dip Switch Settings S4 Block SWITCH CODE 1 0 0 2OFF KM 1900SWH 3 KM 1900SAH350 KM 2100SWH 3 KM 1900SRH 3 KM 2100SRH 3 KM 2100SWH350 KM 2100SRH350 KML 351MAH KML 351MWH 1 KML 451MAH KML 451MWH 1 KML 631M_H KMD 460MA WH KMD 530M_H KMD 850M_H KMD 901M_H KMS 830MLH 3 KMS 1122MLH 3 KMS 1401MLJ 3 KMS 750MLH KMS 1400MLH 12 1 oJo 1jir rjr o o i 5 1401 0 0 0 1 0 0 1 0 0 samne o 5 IMPORTANT DO NOT ADJUST 1 2 s 4 s _ Ai moss ie o o v KMS 1401MLJ Kw255BAH __ KMS 1230 1400 1 1401MLH 37 10 1 15 Positive Harvest Feature The small KM s KMS and 13015 3 models include the positive harvest feature This feature turns off the water valve and turns on the pump motor for the last 0 50 sec onds of harvest The G Board and additional relays are used to allow the pump to turn in the correct direction during this feature A full explanation of the sequence of operation including these relays is included in the individual service manual The H Board used on small KM s has the same feature however relays are included on the board H Board Factory Dip Switch Settings NOTE DO NOT adjust S1 3 4 7 8 9 10 or S2 from the factory setting mew ppp Pavese o o p p
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185. 591 SLYT ST9T 0751 OELT ST9T SEST 0891 5561 10 0 sanoy pz 0051 0591 5951 0971 SS T OTOZ S96T OT 05 2 ajoway J ajoway J ajoway 2 2 4 541 834 8 001 06 17108 0 2 4 quaiquy si eu Vpor u ula1s s e pe12euuoo 8 5141 1 09 511 8 Ajddns VIT 9 8 101 007 4 2 HIWO000Z 4 1 SO HM8LS WOQ HMSLSZ WOG Hv8LSZ WOG SO HM0SZ WOd SO HVg0SZ WOd uem oe ceu e a SO HM800S IN2Q 50 8005 00 e soe ul Jojyoedeo yeys IN23 J9XeI4 10 1 15 363 v 4 ton 5 Or 00t rO zsef A v 4 vC SZ 0 1 801 18 4 1005 6 SLE N 10jymede ul senjeA Jojoedeo yeys wesbeig WOG 4exel4 9 HIWLOOL SA 4 O PWLOOL 4 O HIWLOOL 4 O HHWLOOL s
186. 6 Beep Low Voltage Alarm supply control voltage drops to 92 volts 596 unit will shut down to protect the components and Power OK LED will turn off Alarm will automatically reset when voltage corrects 6 7 High Voltage Alarm f control voltage reaches 142 volts 596 unit will shut down to pro tect the components and Power OK LED will turn off Alarm will automatically reset when voltage corrects 7 8 Beeps Gear Motor Alarm Occurs if gear mo tor protect relay circuit operates compressor and gear motor will stop Manually reset after checking gear motor circuit 8 9 Beeps Bin Control Alarm Occurs if unit shuts down on bin spout control and infrared sensor is call ing for ice Manually reset and check infrared bin control operation Adjustable dip switches are provided on this control board These dip switches will allow flexibility in the board applica tion This control board will be used for other models at a later date They function as follows Normally off factory use Bin Control 1 Delay Proximity Switch Bin Control Selector Continuous Dispensing Timer DCM models only do not adjust on modular icemakers Drain Frequency Control Bin Control 2 Delay Infrared Sensor HS 2124 n 275 10 1 15 This pictorial will allow you to locate the board component locations and become more familiar with the board You will see this board used on future F DCM product
187. 83G01 for red connector Mechanical Bin Control with H Board H board has different connectors and does not require resis tors to switch the board operation The mechanical proxim ity switch will open to shut the unit down when ice fills and pushes actuator over the same as the G board operation When ice is moved the switch closes and the unit starts 59 10 1 15 KM Cuber Sequence Of Operation Note When power is supplied to the E or G Control board 10 second delay occurs at start up The board checks power for 5 seconds and the red POWER OK LED lights The board checks for alarms and 5 seconds later the unit starts The general steps in the operation sequence are as follows 1 1 Minute Fill Cycle The unit always starts with the 1 minute fill cycle When power is applied to the unit the water or refill valve is energized and the fill period begins After 1 minute the board checks for a closed float switch If the float switch is closed the harvest cycle begins If not the unit will not start without adequate water in the reservoir This serves as a low water safety The water valve will remain energized through additional 1 minute cycles until water enters the reservoir and the float switch closes 2 1st Harvest Cycle The compressor starts hot gas valve opens water valve remains open and harvest begins As the evaporator warms the thermistor located on the suction line checks for a 48 F tempe
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190. 981 1S9AJeH 328944 10 310 c 06 16 04 01 05 ajoway ajoway ajoway ajoway 8 OOT c 06 42 08 5 TZ ZE 04 06 sod 0917 59 9 2 Jad 44 921 V6 09 0 2 802 Ajddns VIVA Vs 8 5 6 2 3 uonons 9JnssaJd 55 1soAJeH P J 929944 591 sanoy pz sqi 8y 2 3 quaiquiy 796 01 12 05 0 1 EHMS 10 uonduinsuo v4 adesaduy 101 50002 44 10 1 15 193 ajaAo 92991 OU SOINUIW SI 9 1559 4 159 328944 9 2A2 10 310 25 17 Ts 9v 05 9v 6 05 Sp 6v Sp 8v Sp 8v TOPOL d 87 St 8v St 17 St Ly 17 05 88ET 0791 9181 5191 5581 2091 19 1 CL8T 61 1 5581 6261 ze 06 Ic 0Z 05 a10way aloway 2 3 94155944 929914 541 sJnou pz 54 84 10 1 15 194 2 3 dwa juaiquiy sJupz e5 LIST 01 12 05 0 jesuaepuo EHMS 10
191. A control board 2A4296 01 Interchangeability of the control boards will depend on the serial code and connections In general you must use the original control board part number unless it subs See the appropriate parts manual if you have questions about board part numbers 10 1 15 Control Switches Flaker models will have 2 control switches 1 The Power Switch controls supply power to the unit 2 The Control Switch will switch the unit from Ice mode to Drain mode A third switch is included on the larger DCM s The Dispense Mode Switch will switch the unit from con tinuous dispense ice drops as long as you dispense or 60 seconds whichever is shorter to an adjustable portion control Adjustment is made through a variable resister on the control board Continuous or Portion control is switched on by dip switches on new DCM units using the F A board Evaporator Barrel Heaters A band heater is used around the outlet of the evaporator barrel for most cubelet models This heater warms the ex truding head area to prevent ice from bridging and choking the evaporator outlet during shutdown It also reduces ice squeaking noise which can occur as the cubelet ice passes through a cold extruding head The heater is energized with the gear motor circuit Heaters by Model F 330BAH C 4 4375 01 F 801M C F 1001M C 4A2292 01 FD 1001M C FS 1001 1022M C DCM 500 751B F 1501 2000 2001M C 4A4335 01 F FD 1501M C DCM 750B H 3
192. ATER CIRCUIT REFRIGERATION CIRCUIT 320 ACCESS VALVE 10 1 15 F 1001MLH C CONTROL WATER VALVE SPOUT INSULATION FLOAT SWITCH EXPANSION EN OVERFLOW DRAIN OUTLET DRAIN PAN SOLENOID VALVE ACCESS 8 j VALVE MULTHRACK CONDENSING ACCESS UNIT VALVE SOLENOID EP REGULATOR VALVE x 2 WATER CIRCUIT lt REFRIGERANT CIRCUIT 321 10 1 15 FS 1001MLH C CONTROL WATER VALVE RESERVOIR INSULATION FLOAT SWITCH VALVE OVERFLOW lt DRAIN OUTLET DRAIN PAN SOLENOID VALVE ACCESS VALVE gt CONDENSING 1 UNIT VALVE zi WATER CIRCUIT REFRIGERANT CIRCUIT Water circuit shown for production prior to serial code 0 J SRC 10H COUPLING COUPLING SHUTOFF A VALVE n Y CONDENSER PRESSURE ACCESS SWITCH VALVES 1 CONDENSING PRESSURE REGULATOR Y CONDENSER FAN MOTOR COMPRESSOR REFRIGERATION CIRCUIT 322 SHUTOFF VALVE 10 1 15 K F 1500MRH C CONTROL WATER VALVE INSULATION 57 WATER LEVEL EVAPORATE FLOAT SWITCH OVERFLOW DRAIN OUTLET DRAIN PAN COUPLING
193. DI 3 HVIAOOS IAD 3 HVIWOBZ W HM8 HV8SSZ WX ueg uny 3163 ZUMM senjeA Jojoedeo WM 10 1 15 200 10 1 15 8 sz se ze ev ez 10 pue BUSS HWGOOS W ___ sz se ze evz ozz w H Woes dwbi H Wosr aw 262 652 22 3 HMWIHVINLSE TW 1 eves HWWIHVIN LSE TAI 2 dung ung 4 31836 ZUM PPOW senjeA 930N 10 1 15 06 06 HMIN HVIAOO6 IAM H1INO 8 SIAM HOL MYS M 8 HZ MYS M H1INOSZ SWM HHN L06 QIAM HeINOSS QIAM H3A002 QWM HMN HVIN L06 GIAD HAW HVWOSS QIAM HAAW HVIWOOZ QWM 3 HVIAOS9 IAM 3 HVIAOE9 IWNM 202 ung 3163 SUMIM HMIN HV INOS9 INM H amp 8INO 9 INM HMIN HVINOE9 INM HAW HVINLE9 1WM H 1W009 TIAM Jojoedeo s aon ____ vez EHMSO
194. E 0 ORANGE P R RED V VIOLET W WHITE Y YELLOW WIRING DIAGRAM 15 020 60 1 R WATER DISPENSE DSPENSE SWITCH WATER VALVE m Ow NOSE KLLER w MATER VALE 2 SE TAKING CONTROL NOSE KLLER EA den CAEN S NOSE KLLER DO THER BOARD i FLOAT SWITCH Li 33 n m jT BU HGH PRESSURE SWITCH gm ge BN CONTROL SWITCH CONTROL 18 369 10 1 15 DCM 500BAH OS DCM 500BWH OS WIRE COLOR CODE sn sown o ORANGE mw 4 n BR WIRING DIAGRAM 15 120 60 1 THERMAL PROTECTOR STARTER BK RESISTOR WBK WHITE BLACK doo 1 w BR WH
195. EZ 80Z 8 Ajddns H 002 4 10 1 15 360 10 1 15 uonong aanssaid apis 8 9JnssaJd 3ep ino 361 591 s1nou pz 2 3 voy x sujet Lc 08 0 0 4 juaiquiy V8 OT 61 a 0WaYy 10559194109 2 HUIATOOC 3 1300lN ASTT 404 e33n8U M T 09 0EZ 80Z 8 1 Ajddns VIVO 10 1 15 2 SC 4 YT 559 ou 10 9154 ZZ 5 ainssaig 104 1032 3 dnias waysds 22995 au WajsAs pue jenjoe 5154 10 2155919 pue 10 aunssaud epis ysiy e YUM 19 00911 Aj2edeo 8 e Sursn Aq si pepi oJd au 2 44 44 ze 06 TZ TZ TZ 04 ainssaig 9T 9T 9T 9T 0S 162 162 L6c L6c 06 apis 957 967 957 957 0L 658 061 061 061 061 0S vi vi a ze 06 E c c 0 NNO c e c OT 05 103e40de 3 OLET STST 5891 5851 56 1 0991 6161 ze 06
196. F 330BAH C CONTROL SPOUT WATER FLOAT HEATERCC MODEL ONLY SWITCH RESERVOIR OVERFLOW CAPILLARy TUBE DRIER NUR CONDENSER FAN MOTOR CONDENSER PRESSURE SWITCH ACCESS COMPRESSOR WATER CIRCUIT REFRIGERANT CIRCUIT 317 EE 10 1 15 F 500BAF CONTROL WATER SPOUT VALVE FLOAT SWITCH WATER INLET 57 WATER LEVEL RESERVOIR EVAPORATOR 9 EXPANSION VALVE GEAR OVERFLOW MOTOR FLUSH WATER DRAIN PAN MAENE DRAIN OUTLET E m DRIER A 1 1 CONDENSER CONDENSER AN MOTOR ACCESS 1 VALVE COMPRESSOR WATER CIRCUIT REFRIGERANT CIRCUIT 318 10 1 15 G F 450MAH C F 800MAH MWH C F 801MAH MWH C F 1001MAH MWH C FD 1001MAH MWH C F 1500MAH MWH C CONTROL INSULATION DRAIN OUTLET 1 DRAIN PAN 1 CONDENSER CONDENSER FAN MOTOR Y ACCESS VALVE ACCESS VALVE COMPRESSOR DRIER CONDENSER WATER COND REGULATING WATER VALVE OUTLET 319 10 1 15 H F 1001MRH C FD 1001MRH C CONTROL WATER VALVE INSULATION WATER INLET FLOAT SWITCH EXPANSION ENS DRAIN OUTLET DRAIN PAN CONDENSING UNIT COUPLING PRESSURE SWITCH CONDENSING PRESSURE REGULATOR RECEIVER TANK CONDENSER FAN MOTOR COMPRESSOR W
197. F ON ON OFF OFF GEAR MOTOR CAPACITOR FOR F 1001MLJ IS 24 MFD GEAR MOTOR CAPACITOR FOR F 2001MLJ IS SHOWN 65 MFD 385 U FS 1001 115 120 60 1 MLH C BK BLACK BR BROWN DBU DARK BL GY GRAY LBU LIGHT BL Y YELLOW W BU WHITE B UE UE 0 ORANGE R RED V VIOLET W WHITE WIR WHITE RED W BR WHITE BROWN L N power JER W BK WHITE BLACK W 0 WHITE ORANGE 080 M uve TRANS FUSE wol LBU ik BK ALVE FLUSH SWITCH BR 0 ub te Ve 3 FLUSH TIMER CONTROL v WR RELAY EH BR WIR 4 DBU WIBU 1 ormo 0760 FLUSH WATER VALVE FLOAT SWITCH 4 77 LBU t re RELAY Y 35557518 WIR GEAR MOOR 599 wn CS en i RELAY CONTROL TIMER 28 15 66 8 7 Ofm Q Ae om Gy GEAR CAP THERMAL MOTOR 290 PROTECTOR M W BK Hu wT PK HEATER AWW FOR CUBELET MODEL 01 77 343505 010 386 10 1 15 V FS 1001MLH C with F A board FS 1022MLH C FS 1500MLH C
198. GE TAP SWITCH m ky ala VOLTAGE TAP 0 R TRANSFORMER d Pug BR THERMAL GEAR MOTOR gay PROTECTOR d LAP 65 HD EM R D 180 I T2 R aR D RT VENTILATOR GEAR MOTOR i0 PROTECTOR RELAY oof 2 710 FOR HS 2121 AND 5 2122 s AND CUBLET MODELS ONLY mig REMOTE CONDENSER UN 2 CONDENSER CONT 5 FAN MOTOR __ K CRANKCASE HEATER SPOUT INDICATOR PRESSURE SWITCH GY BR POWER SWITCH lomo R 7 FUSE A RANSFORMER QU BK WATER CONTROL RELAY 09990 FLUSH Es 3 ND K icon 718 0 R a 08U FLOAT SWITCH m WATER VALVE FLUSH WATER VALVE os Con 9416 A BR 44 NC 71 193 Org DO x SPOUT CONTROL RELAY 1 iz CONTROL TIMER BR K BU 34951601 1 392 10 1 15 BB F 2000MLH C WIRING COLOR CODE BK BLACK 0 ORANGE BR BROWN P PINK L NEUT DBU DARK BLUE R RED BR GY GRAY VIOLET LBU LIGHT BLUE W WHITE SOLENOID VALVE 0 SOLENOID VALVE THERMAL ey PROTECTOR Fusecay PROTECTS H Svr t BR VENTILATOR GEAR MOTOR PROTECT RELAY aD 4 Mem amit mem BK WATER CO
199. GNETIC CONTACTOR R iNTERNAL coup 8 START CAP START ERU PROTECTOR oloo 110 BK Too ye P RUN CAP BR rg ND GY 5 RE COLOR CODE 2 BLACK LLL m LUE BK Ww W 4 v 5 VOCE CRANKCASE HEATER w REMOTE MODEL n 6 REMOTE MODEL FIELD BR WIRING 7 WIRING FVAPORATOR z an CUBLET MODEL MILI WATER 8 wo wo FAN 8K WREMOTE MODELS wW 9 gt w o 5 6 BR Iw 3 1 18 W 53 4 COMPRESSOR CONTROL RELAY GEAR MOTOR INTERNAL PROTECTOR FUSE GY 6SMED un 9 R W o 115 BR BR jm OLO T CONTROL WIR ory TRANSFORMER Be FUSE CIA 24VAC LBU IU 4 LBU LBU INLET DRAIN 5 WR WATER 55 VALVE BK BK VALVE BR BR BR Y W BU t A M BU BR WIR WIR K WIR BR _ BR BR CONTROL SWITCH 732223311 5 z 1 2345678910 1 23 OPEN ICE Li svac 2avac 7 CLOSED DRAIN KI o E A xi BIN CONTROL SESS C INFRARED EMIL CONTROL BOARD SN do WBK SENSOR 20 PRESS BR zavac SWITCH 55193132 I erosa T Sero B s ss23s9s s Bey ye 52 BUD R BK BURR WR WR LBU LBU UPPER GY Lower FLOAT SWITCH ae BIN CONTROL 2 m MECHANICAL aio w o 394 NOTES 395 m 10 1 15
200. H KMD 700MRH KMD 700MWH KMD 850MAH KMD 850MRH KMD 850MWH KMD 900MAH KMD 900MRH KMD 900MWH 10 1 15 Cuber Charge Chart continued KML 631MWH R404A KMS 750MLH R404A KMS 822MLH R404A KMS 830MLH R404A KMS 1122MLH R404A KMS 1230MLH R404A KMS 1400MLH R404A KMS 1401MLH MLJ R404A KMS 2000MLH 27 165 5 4 oz R404A Always verify total charge with nameplate amount If listed charge is different use nameplate amount 10 1 15 URC Charge Chart Condenser charge is included in total charge Refrigerant URC 5F 6F R404A URC 7F R404A URC 9F R404A URC 12F R404A URC 14F R404A URC 20F R404A URC 21F R404A URC 22F R404A URC 23F R404A URC 24F R404A SRC 10H R404A SRC 14H R404A SRK 7H R404A SRK 8H R404A SRK 10H R404A SRK 13H R404A SRK 14H R404A SRK14J R404A SRK 20H R404A Refrigerant Oil All R 404A models use Polyol Ester POE EAL oil POE oil absorbs moisture easily Extra care must be taken to reduce the possibility of moisture entering the system dur ing service If moisture contamination is suspected the oil should be changed and the liquid line drier must be replaced Changing the oil requires removal of the compressor so that the oil can be drained and replaced with the correct amount See compressor data chart for oil amount Replacement compressors are shipped with POE oil 10 1 15 Heat Load for 8 Cooling Tower The heat of rejection information listed below by model number should be used fo
201. IM uedo 80 J woog v 2 lt uoljenjis uo spuedep ulw NOLLOND AV T3H 710109 peJojseJ 4 1 M 288 1 deis uonisod 09 dn uejs jenu peziBueue usn 4 HSfY14 0 paved yms peziBieue ep usn J 5905 pue Jeac sdojs 105591909 10 1euin Jnou z 14 4 L 4 UOISIDSp I HSfY 14 HOLIMS 10 02 99 06 HSN14 HSN14 S 130OM L0 L6SG Vt JO 0 60 57 Kejap 998 OF ON deis pasn s uos ueuM 930N senunuoo senunuoo AT1 senunuoo senunuoo W4 W4 W9 Yd ND Yd IND HO A11 senunuoo senunuoo W9 Spels ejo o 291 Jo HO ATT senunuoo pue sjeseJ yo dwog dwog dwog Yd ND S 4N Jo OUD senunuoo senunuoo W9 uo YIN4 AM uueje
202. ING 1 2 3 4 5 6 1 8 9 10 F 1501 8 C ON OFF OFF OFF OFF OFF ON ON OFF OFF 208 230 60 1 3 WIRE WITH NEUTRAL wi 9 BR BK Al 80 BLUE 08 RK 2 N GND GR EE GY AY LBU Pon LI L M HITE BK W W BK WHITE BLACK REMOTE CAP W BR HITE BROWN FAN 1 W BU WHITE BLUE 2 W O WHITE ORANGE E P REMOTE MODEL WIR WHITE RED pe SWITCH i 3 6 0 E m BR AIR COOLED MODEL 1 2 p 29 1 EVAPORATOR HEATER wo 5 Bi 0n an __ o 7 18 easi ined K 8 br COMPRESSOR INTERNAL CONTROL RELAY PROTECTOR BK o BK GEAR MOTOR INTERNAL PROTECTOR FUSE w o w o CAP GY P2 R BK R W L 11 5 BR BR W Ter TRANSFORMER WIR AN MI 0000 v BK CIA LBU 2474 iau LBU DRAIN INLET EN wR WATER H VALVE VALVE BR BR BR R R T o WBU BR 4 W R WIR WR Be
203. ITE BROWN SIM TAE W BU_ WHITE BLUE Nm 243 2220 WHITE ORANGE m WHITE RED PEATE ONLY AR COOLED FAN MOTOR m um PROTI ERY 20 EUR DBU FUSE 204 35 POWER SWITCH BK 1 3 AT DOOR SWITCH Jeol LI 5 POWER PROTECT GEAR MOTOR RELAY PROTECT RELAY BR Hora 3 AGITATING MOTOR BK DISPENSNG MOTOR BR 0 LBU 0 R FUSE gk zav eki ov LBU DISPENSE bs WATER VALVE 105v FUSE 054 BR VS NOSE KLLER FLUSH DRAN LBU WATER TE XE MAKING TAN E SWITCH IE z i L a CONTROL INLET No 1 23258783 21401 BR WATER VALVE TE E M NOISE KILLER 1 x DCM TRER BOARD 1 1 I as FLOAT SWITCH 6 71456 71456789 Vey sores l 24429 1 214396785 1 s L DBU PRESSURE NOSE KILLER WITCH WATER BK IHM DISPENSE 80 SENSOR eH R 2 WBK T Y 129166159 w i uer o pd WATER CONTROL WIR R RELAY m MODE BN CONTROL SA CONTROL oy LBU 370 DCM 750BAH DCM 750BWH WIRE COLOR CODE BK BLACK 15 120 60 1
204. JV c 06 s d sq 59 0 2 2 Jed 221 T 09 STT 8 Ajddns 8c 9c coc 151 Sc 6T 9T Tv Tv 05 Jv 42 08 V1VG 39NVIAIO3H3d Vec c IV 1S9AJeH 328244 2 2 8101 310 uonong 91155944 91055914 1S9AJeH 92924 541 s1nou pz sqi 8y 9 3 2 3 quaiquiy v4 10559494109 101 3 809 10 1 15 121 2 9799411 941 OJU SI eJnssaJd 1S9AJeH 3222314 2121 EOL 310 8T LT YT ze 06 uonong 9T ST ET VI OT 01 05 S8T TLT EST SET c 06 apis 6ST SST 611 12 04 i i 611 SIT YOT 01 05 02 oz oz oz c 06 eed 0 0 cc vc 01 Suit sky cc vc vc 01 05 86 15 c 06 vU 37 6 vE 16 04 LE 0T 05 8 Is 85 c 06 8t 6 96 S9 16 04 sJnou pc 79 Sq 99 LL 0T 05 uononpoJd JV JV JV 2 3 59 83 dwa 48336 8 001 ct 06 Lc 08 0L 2 4 dway qualquiy s d 08 59 T 9pAo Jed 44 461984494 9
205. KM 2100SRH 3 KM 2100SWH350 KM 2100SRH350 19005 50 eroe o o ojo o o v o fof 0 0 0 011 1 1 1 1 0 KMD 450MAWH 0 1 111 1 1 1 0 1 KMD 460MA WH MERE KMD 530MA W R 10 1 15 2 5 6 9 70 KMD 700MAH BERE KMD 900MA RH KMD 700MW RH 1 4414 KMD 900MWH KMH 2000SWH 3 4 4 KMH 2000MRH 3 KML 250MAH KML 351MAH TO KML 250MWH KML 350MA WH KML 351MAH gt 0 E M Pie KML 600MA WH opo reme KML 631MAH 50 52 KML 631M H Remember the following when handling electronic control boards You should avoid static shock to the board Always touch the frame of the unit prior to removing a replacement board from the anti static plastic bag or handling the board Make adjustments to the control board with the power off using a small blade screwdriver or other sharp point Once adjustment is made turn power back on to initialize the change Factory settings are for maximum efficiency and proper operation Adjustments to 1 2 5 amp 6 will use additional water to flush and improve the built in cleaning 10 1 15 Board 54 Board S1 Dip Switch Adjustment Guide NOTE 1 G board part number is 2A3792 01 2 D
206. MER 10 1 15 Remote Applications Condenser Chart Condenser Remote Model Number s Model URC 5F KM 461 515M 650M F 1001M FD 1001M URC 9F KML 631M KMD 850 901M URC 14F 13015 KM 1340M F 1500 1501M URC 22F KM 1601M S 19005 21005 F 2000 2001M Out of production URC 6F URC 7F URC 12F URC 20F URC 21F URC 24F When installing a remote application the unit condenser combination must match with the above chart A non OEM multi pass condenser can be used with prior written factory approval See service bulletin SB99 00019R1 For out of production models parts are available Check unit manual on web for proper model match and parts info a 17 10 1 15 Remote Lines Hoshizaki has 3 precharged line set lengths available 20 ft 35 ft and 55 ft The line sets are available in different sizes for different models Line Set Identification Code ex R404 35610 R404 Refrigerant 35 Length In Feet 6 Liquid Line Size in 16th s 10 Discharge Line Size in 16th s Line Set Applications moas umese unc Sas KM 461 500 515 650MRH 1 4 00 3 8 600 R404 3546 2 OD R404 5546 KM 900 901MRH KM 1300 1301 1340M S 3 8 OD 1 2 KML 631MRH OD KMD 700 850 900 901MRH 1600 1601 5 3 KM 1800 1900 2000S 3 KM 2100S 3 KMH 2000SRH 3 KM 1800SRH 3 KM 2400SRH 3 KM 2500SRH3 KMS 750 1122 1230 R404 20810 1400 1401MLH R404 35810 M OBS KMS 1401MLJ R40
207. MUST remain OFF LED s The H Board can have either 7 or 9 red LED s that light up during the unit operation as indicated by the H Board operation chart The LED s are designated as follows DS1 Power OK LED a Comes on 5 seconds after the unit is switched to ICE b Indicates proper control voltage 10 5 volts from the control transformer c If the bin control is satisfied Open this LED blinks DS2 H Timer Harvest Timer a Indicates 2 long 20 minute harvest back to back b 2 beep alarm DS3 F Timer Freeze Timer a Indicated 2 long time is adjustable freeze times back to back b 3 beep alarm DS4 X6 Relay a Indicates Drain Valve DV is open b DV opens for 5 minutes when bin control opens DS5 X1 Relay a Indicates Compressor and Remote Fan Motor are energized DS6 X2 Relay a Indicates Hot gas Valve is energized b Energizes the Condenser Fan Motor when OFF 057 Relay X3 a Indicates Pump motor energized DS8 X4 Relay a Indicated Harvest Inlet Water Valve is energized DS8 X5 Relay a Indicated Refill Freeze Water Valve is energized b Service board only 44 10 1 15 052 8 w omoseusq 10 c000d HV80S IAV HV8I9 IADI x bre St HOd LST VVI AEOPTASV Pueredo rO zLccvt AVA0ST NVx 059 5 8 TVA 404 s geo 90 VOLCNOTTVO omoseusq 9 00 Gorzo la 2 AAL UMA G
208. NOID VALVE o DBU 1 SOLENOID VALVE TRANS FUSE E um USE LBU CONTROL WATER VALVE FLUSH SWITCH BR 0 FLUSH TIMER V ocu WIR y 2 BR WR FLUSH WATER VALVE DBU W BU ODDO Loose FLOAT SWITCH CIRCUIT PROTECT RELAY 7 3 Zeke Y 71636 GEAR MOTOR PROTECT RELAY CONTROL TIMER 12 HD Ota Qu THERMAL 9 PROTECTOR FUSE amp 9 pod ox BIN 0 P 0 40 CONTROL LE E SWITCH Gy P GEAR CAP MOTOR 24MFD wo 4 BR FOR CUBELI KIT H5 2028 ONLY 384 E 5 MODEL SERVICE T HEATER md 2A1973 011 10 1 15 T F 1001MLJ C F 2001MLJ C w 1157 60 1 ul N WIRE COLOR CODE BE BK BLACK BR BROWN BU BLUE DBU DARK BLUE v v v GR GREEN fou ORANGE PTS LINE P PINK VALVE 7 lh V VIOLET NEP 5 POWER W BK WHITE BLACK W BR WHITE BRORN
209. NT T E 1BU E 0 IET Bih COOL 68 BK MODE T DE FLOAT SMTOH yo Wo yo S1 DIP SWITCH S1 DIP SWITCH NO 3 4 5 6 7 8 9 10 DCM 75IB_H 0S OFF OFF OFF OFF OFF ON OFF ON OFF OFF High Pressure Switch Air Cooled Model Water Cooled Model 41237 PSIG 384 2 PSIG 327 21 PSIG 28421 PSIG 374 10 1 15 DT 400BAH OS BLACK WIR WHITE RED 15 120 60 1 BROWN WHTE BROWN L TER GND DARK BLUE W O WHTE ORANGE ROTECTOR GRAY W BU WHITE BLUE STARTER LIGHT BLUE WHTE BLACK 5 AE RESISTOR RUN CAP ORANGE TEN PINK alow V RED START CAP VIOLET 243 2928 CAP WIE OR FAN MOTOR M BR W ii TENS A POWER SWITCH E 00 BU COR SAFETY SWITCH 5 6 35 p talo sd GEAR MOTOR PROTECT RELAY 7 5o 3 LAMP oll 165
210. NTROL RELAY 180 180 4 DBU LBU BIN CONTROL CONTROL o ay FLUSH aN VALVE WATER 0 T BR Op OF BR KO oe e 53 4 BR D on SPOUT SWITCH 17 8 LEE R CONTROL TIMER IE 3 4 Toy BR 16 SPOUT CONTROL RELAY i gt 2 BK LBU 393 3A3514 010 10 1 15 CC F 2001MWH3 C MRH3 C S DIP SWITCH SETTING 1 2 3 4 5 6 1 8 9 10 ON orr oF orr orr ON ON OFF OFF 208 230 60 1 1 PHASE 3 WIRE WITH NEUTRAL FOR 1157 Br oW 208 230 60 3 3 PHASE Hi i uu Li L2 13 GND MAGNETIC gn li contactor D ook H BR BR BK BK VOLTAGE 212 TAP SW BRY cog nc BR o INTERNAL I cer PROTECTOR ov aov BR 115V E BR MAIN TRANSFORMER Ww MA
211. ONDENSER UNIT R 2 5 sm ot S WIRE COLOR CODE Note 1 Some models use thermostatic bin control with fuse instead of mechanical bin control as shown 2 Production after February 09 uses G board and mech bin control with no resistors in wir ing harness 231 10 1 15 KMS 1122MLH amp SRK 12H 3 74 n i n ASH PIER e 9 mo aa a n M a 19 ja du n a je im 1 w 0 0 bo X NEAN 0 Wor ay L 1 Ame wp DW d A y To un is m E E wn 3 4 7 n OD E yo 3504 aa T 1005 0109 tN Lm 76 urn 292 1 04 0 LL
212. OR COMPRESSOR THERMALLY PROTECTED NOT INTENDED FOR OUTDOOR USE Hoshizaki America Inc Peachtree City GA www hoshizaki com VERIFIED US LISTED SS nerg tique ICE MAKER AN 946Z VERIFIE See the Nameplate for electrical and refrigeration specifica tions This Nameplate is located on the upper right hand side of rear panel Since this Nameplate is located on the rear panel of the ice maker it cannot be read when the back of the ice maker is against a wall or another piece of kitchen equipment Therefore the necessary electrical and refrigera tion information is also on the rating label found by removing the front panel of the ice maker We reserve the right to make changes in specifications and design without prior notice 255 10 1 15 Warranty Information Registration Warranty registration is available online and a registration card is supplied with the equipment Registration must be must be completed to initiate warranty The warranty begins on the date of installation if registration procedures are followed If registration is not completed the warranty date will be the date of sale or date of shipment from the factory respectively Warranty Coverage The warranty will cover defects in material or workmanship under normal and proper use and maintenance service as specified by Hoshizaki Coverage for parts and labor is limited to the repair or replacement of parts or assemblies that in Hoshizaki s opinion
213. Pull the auger towards you and try to insert a 02 round stock or pin gauge in between the back side of the au ger shaft and bearing surface Check several locations around the auger shaft If the gauge will go in between the shaft and bearing surfaces it is time to install new bearings Both top and bottom bearings should be re placed if the top bearing is worn If there is no excessive movement in the auger shaft and the gauge does not fit the bearings are okay Replace the cutter o ring ice chute head and connectors Note Flat gauges may give a false check as they will not insert in the circumference of the barrel 10 1 15 02 Round Stock 02 Round Stock or Pin Gauge or Pin Gauge Bolt if applicable Extruding Checking bearings on evapora Checking bearings on evapora tor with original drain pan tor with new drain boot Note Do not pull upwards on the evaporator drain pan If drain pan seal is broken reseal with silicone Mechanical Seal Hoshizaki auger products utilize a heavy duty high speed ceramic to carbon mechanical seal This seal is located at the bottom of the evaporator and maintains the water seal between the barrel and hous ing If it leaks you will see a water trail from under the housing and over the gear motor assembly The seal is reusable if it is clean and not damaged Inspect the seal surfaces for cracks and pitting assure it is clean and scale free and reuse or re
214. S TOE apis 196 5 oez Ec E Ed 35 0 re Hp Ov LE 9 m SE SE Hp 8001 OTTI vert 9611 541 TSZT STET s1nou ve 2 3 vSv X sq 3 22 54 dwa juaiquy 10 1 15 173 ze 06 17 08 04 1951 12 06 02 06 sod 541 TE 2 2 wad 221 198 OT TZ 05 04 VEG YOT Vt CT IV ASTT 404 T 09 0 Z 80Z 8 Ajddns HMS 10 10559494109 2701 105 Viva 9799 4 941 034 So1nuiuJ SI 9 1559 4 10 1 15 1S9AJeH 9282344 SWI ep 2701 310N 89 79 79 19 c 06 uopons 9 09 65 85 176 0 65 85 85 15 05 08 09 91055919 462 35 Ov vv 6 c 06 Ov 8 8 SE 16 04 LE SE SE 01 05 66 168 726 766 c 06 san 6 6 vOOT 2801 0L e 2801 6801 ot 05 JV JV D sqi 3y 1 3
215. S LBU BLUE MODEL 2 4 5 7 FS I001MLH C ON OFF OFF OFF ON ON OFF OFF RED FS 1022MLH C ON OFF OFF OFF OFF OFF ON ON OFF OFF FS 1500MLH C OFF W BK WHITE BLACK W BR WHITE BROWN W BU WHITE BLUE W O WHITE ORANGE W R WHITE RED 10 1 15 SRC 10H SRC 14H Used with FS MLH models PF x 1 12 12 BR WIRE COLOR CODE BK BLACK BR BROWN START CAP RUN CAP BU BLUE DBU DARK BLUE R SEEM R a R R ot 35 LBU LIGHT BLUE LL di Ue 40 0 ORANGE DBU 5 PINK 5 BK Y OE START RELAY Y YELLOW R R WBR WHITE BROWN WBU Wem EM MAGNETIC CONTACTOR WR WHITE RED 1 bau Ho 2 R BK BK L o BK BK BR CRANKCASE HEATER fe ho P MODEL RUN START CAP SE d p SRC 10 30MFD 108 130 MF FAN MOTOR 10 330VAC o BR 5 174 MF bak 220000 BR 9 Li 9 0 E 0 0 0 CONTROL LOW SAFETY LOW HIGH PRESS PRESS SWITCH CLPS PRESS SWITCH SLPS SWITCH HPS GND Control Low Pressure Switch Safety Low Pressure Switch Manual R
216. See service bulletin 5 10 00053 for additional details 300 10 1 15 Auger Bearings Bearing Type Sleeve Alignment Bearing Material Poly Carbon The bearings are pressed into the top extruding head and lower brass housing A bearing repress program is available through the local Hoshizaki Distributor for undamaged extrud ing heads and housings The bearings should always be replaced as a set to assure correct alignment and even wear Return the extruding head and housing to your dis tributor for an exchange set or to be returned for repressing Bearing Inspections It is important to remember that bearings are a wear item Annual bearing inspections are recommended More fre quent inspections may be necessary in poor water quality areas The steps for bearing inspections are as follows 1 Gain access to the ice chute head by removing the top panel and spout connectors as necessary Use warm water to melt any ice in the evaporator if ice is present 2 Remove the thumb nuts which hold the ice chute head in place and lift it up and off of the evaporator take care to place the O ring in a safe location until you replace the ice chute head 3 Remove the stainless steel bolt holding the cutter or breaker in place and lift off to access the extruding head and auger shaft 4 Replace the bolt into the auger shaft and use it to push the auger back and forth from left to right to check for excessive movement 5
217. T Ajddns 10 1 15 345 Lv Ly t Ly Ly 106 uenans 9y vv 9y 9y 9y Tv 0L 9p tv sE Or 0c 25594 792 962 792 697 792 792 612 22 06 usi 297 297 592 297 EEZ 297 1 04 ainssaud 95 ELZ 9 95 9cc 595 002 05 NNO 1 JojeJode 3 Sgt 155 591 5 pZ JV JV pied Sq 3 193 8 001 ze 06 Lc 08 Tc 0L 2 53 dwa supz e9 coe ess 108 008 4 TZ ZE 0 06 gt eer 8te 108 008 4 01 12 05 0 02 2 104 uondunsuoo 5 7 Vs Z vi 2055929109 9 Ajddns 2 INT08 4 V1VG 10 1 15 346 9 SE EE SE ve 9 ve 8 SE vt SE EE vt ee ce 86 SE SE ze 6 05 Sez 69 ste 95 ex viz 692 vee 6 26706 Scapa sez 99 ste 95 99 vez 992 997 sez egz ste osz egz vez 68 egz
218. T 3 PHASE Black 208 230V 3phase 115V WorR 3 wire w 1150 Brown gnd Fan Control Circuit Neutral From Unit GND Note All Electrical connections must be made in accor dance with all national and local electrical codes 15 2 7 10 1 15 Transformer Application Optional All 208V 230V 3 ph models include a 115V power transformer with a 208 230V selector switch Be sure to select the position that best matches the incoming voltage prior to supplying power to the unit Voltage from the center tap to case ground will be 67 5V due to the transformer cir cuit 208 230V models include 115V controls and require a 115 208 230V circuit which has 4 wires L1 L2 dedicated neutral and ground If a dedicated neutral is not available a step down transformer can be used at the unit to provide power to the 115V compo nents saving installation time and cost if a dedicated neutral is not present Transformer 4 0817 01 or equivalent can be used for KM models The transformer should be mounted inside the compressor compartment and wired using the fol lowing generic diagram Beginning Dec 2013 some models include the trans former and are noted as 3 Wire on the carton label They require a 3 wire circuit No dedicated neutral Note Transformer 4A0817 01 has 4 wires Connect Unit L1 to incoming L1 if using 446240 01 trans former 208 230 60 1 L1 L2 _____ 115 MAIN TRANSFOR
219. Tc 0L 52 53 dwa T8T Ic ce 04 06 201 OT TZ 04 0 HMIN 10 1942M sod OET SQI 2 Jad 221 8 9 VI0 9 WZ HIY v8 1055949109 10 x x 09 e8e3joA Ajddns HV8LSL INM 10 1 15 124 2299 BY papJooaJ 1 928244 JWI 9 2A 30 310 91155944 6106 apis yay Tc 0L 91155944 0T 05 is 35 rog gt 929914 ros Lp c 06 _ 540 ot os nou ve d sqi 8y 8 001 2 3 dwa 1ueiquuv 1 977 12 26 04 06 err OT TZ 05 04 4 SU PUOJ HMIN 10 uonduinsuo J91eM sod Sq p 2 2 Jed lt 9 salem vecs vr9uv 1055910 05 ezo 1 09 S11 Ajddns H 8L0Z INX IQON V1VG 32NVIAHO333d 10 1 15 125 epo 9799411 JY OJU G S ejep eJnssaJgd 32824 21 301 31ON 59 79 79 9 9 29 69 09 ZE 06 29 29 29 29 29 19 19 65 29 19 19 65 19 6S
220. U0097 01 Heater Specs Pans vos Watts Amps Resistance Fawsrsor av row osen 4A4375 01 16W 0 66 3 6 1 8 Ohms 4A2292 01 120V 0 26A 464 23 Ohms 4A4335 01 120V 0 33A 360 18 Ohms 3U0097 01 133 6 Ohms Thermally protected 150 F 5 F 150 F open 120 F closed 10 1 15 Control Transformer Hoshizaki Flaker units include a 24 volt control transformer This transformer has a 115 volt primary and 24 volt secondary and is protected by a 1 amp control fuse The DCM has a dual output secondary of 10 5V to terminals K4 1 amp 2 with a 0 5A fuse and 24V on terminals K2 7 amp 2 with a 1A fuse The 24 volt secondary supplies power to the solid state timer board relay coils inlet water valve and flush timer circuit The flush valve will either be 24 volts AC or DC depending on the model A rectifier is provide in the flush valve circuit to convert to 24VDC Without control voltage on pins 1 and 2 the timer board will not allow the unit to start Gear Motor Protection The auger gear motor circuit includes two overload safeties The primary safety is a manual reset current type protector or slow blow fuse located in the control box This is a time delay protection which operates if high amp draw occurs The sec ondary safety is a thermal protector incorporated into the gear motor windings The current type gear motor safety has been replaced with a slow blow fuse on most models The f
221. UN CAP Pics SWITCH PWR 4 FAN MOTOR 1 GEAR MOTOR PROTECT RELAY orti 8 GEAR moron OR 006 PROTECTOR PROTECTOR CONTROL TRANSFORMER w 000076 o BR Cow x 24 uv lon 3 R ES 000090090 0 e Le Gr FUSE y 1 1BU MET 180 WATER VALVE R 2 BR 7 4 3 P low 5 6 DRAN RELAY XA 5 50 EC zu 7 8 7 3 UPPER SW LOWER SW WATER CONTROL contro RELAY 00 FLOAT SWITCH BIN CONTROL SWITCH SWITCH 0 376 10 1 15 L F 330BAH C BR BROWN 0 ORENGE W WHITE BK BLACK BU BLUE 115 120 60 1 Y YELO R RED VIOLET DBU DARKBLUE LBU LIGHTBLUE GR N P W BR W BK WHTE BLACK LAMP FOR CUBELET WHTE RED T MODEL ONLY 0 WHITE ORANGE wo HEATER P 0 t1 FAN RELAY Y6 E MOTOR RUN O 0 0 0 0 oD Tay BK BK 9 PIBK POWER MOTOR SWITCH M COMP Y 24 gi R FUSE THERMAL 1A TRANS PROTECTOR omms 0 BK START
222. Under sized drains can cause water backup and result in water damage 12 5 10 1 15 Water Cooled Condenser Outlet KM 151BWH KM 201BWH KM 260BWH have 1 2 FPT outlet All other KM KML KMD models KM 1301SWH KM 1601SWH KM 1601SWH3 KM 1900SWH KM 2100SWH3 KM 2500SWH3 have 3 8 outlet Hoshizaki recommends that the ice machine drain and bin drain be piped separately to the drain connection point al lowing 1 4 per foot fall Condensate Drain The condensate drain is generally connected to the ice machine drain for simplicity It can be piped separately to the drain exit if desired A 6 vent tee as shown in the drawing is recommended Condensate Drain n di P d Reservoir Drain 3 4 POV or equivalent Note Restricting the drain size will cause water to over flow the reservoir or drain pan 0 13 10 1 15 Flow Rates The minimum flow rate requirements for Hoshizaki KM ice maker units are as follows DKM 500B KML 250 350 450 631 KML 351MAH KM 461 501 901M All F DCM s KM 515M E 650M E KMD 410M KMD 450 700 900M KML 600M KM 500M KM 515M KM 600 630 650 900 1340 1601M KM 900M50 KM 630M E KMD 850M 901M KMS 750 1230 1300 1400 Filtration Hoshizaki recommends that filtration be installed on our products The type of filtration will vary with local water quality In some cases treatment is needed to address wa ter hardness or high mineral content The filt
223. Unplug the float switch lead from K5 and cause the unit to cycle into harvest mode 3 Replug the float switch and start timing as soon as the next freeze begins Note Remember that the evaporator compartment must be closed during the production check Removing the front cover to check the ice buildup during a production check will allow heat into the evaporator and will affect the total cycle time and actual production 10 1 15 Cuber Water Refrigeration Circuit Drawing Reference List Note Some drawings have been combined to represent more than one model MODEL DRAWING PAGE etti resi edit 100 KM 61 A04BAH rettet rri tto 100 151 eem C ener 101 KM 201BAH KM 260BAH KM 260BWH D 102 KM 251 KM 255 Eum 103 KM 280MAH MWH amp E KM 320MAH MWH amp 103 410 cd 104 KMD 450 460 530MAH MWH 105 KML 250 350 351 450 451 600MAH MWH KML 631MAH MWH DKM 500BAH BWH 106 600 63 1 Ne 106 KM 500MAH E KM 461MAH MWH KM 461 501 515 600 630 900 901MAH MWH K 107 KM 461 501 515 630 650 901MRH 0 650 700 900 Enc 108 KMD 700 850 900 901MAH MWH
224. V to case ground indicates a potential shorted transformet winding condition The most common electrical component issues are blown fuses or issues with the thermo static bin control control switches or relays REFRIGERATION SYSTEM It is important to remember that an ice maker is a close cou pled refrigeration system and has a critical refrigerant charge The only way to properly charge an ice maker is to evacuate and weight the nameplate charge back in 1 The charge should never be topped off 2 Putting gauges on the system should be the last step in diagnosing refrigeration issues Always pre check system for obvious issues prior to installing gauges 3 Scale on the evaporator and dirt on the condenser will af fect proper operating pressures The system should be clean before attempting to check pressures and diagnose a refrig eration issue 4 Good information can be gained by using the touch and feel method during the cycle Always check for unusual hot or cold spots around suspect components such as valves driers heat exchangers and the inlet and outlet of the condenser and evaporator 5 Use performance data provided in this handbook to deter mine if the refrigerant system is operating properly 6 Do not guesstimate the air and water temperatures Ac curate temperature data is needed to properly cross reference the performance data LEAKS 1 If you suspect a refrigerant leak use proper leak checking techniques
225. Valve Compressor Discharge Line X M Expansion M Check Valve Z Refrigeration Circuit Water Circuit Note KM 901 MAH MWH has 2 expansion valves and check valves at hot gas valve outlet 107 E 10 1 15 L KM 461MRH KM 501MRH KM 515MRH KM 630MRH KM 650MRH KMD 650MRH KMD 700MRH KMD 900MRH KM 901MRH KMD 900MRH S Condenser Unit Condensing Pressure F Spray Tubes Regulator Condenser Water High Pressure Switch Water Supply flo d Evaporator Receiver Tank Access Valve Fusible Plug Drier Cleaning Thermistor Valve Insulation Line Valve Ms Strainer Switch Hot Gas Refrigerant Expansion Valve Water Circuit Drain Valve Note KM 901 MRH has 2 expansion valve 10g 10 1 15 M KMD 700MAH MWH KMD 850MAH MWH KMD 900MAH MWH KMD 901MAH MWH Water Regulating Condenser Valve Drain Water Supply Condenser Fan Spray Tube Drier Line Valve Water Valve NS E Evaporator W at m Supply Tal ir 9 c Strainer DEI H H H Hot Gas Valve Cleaning Vaive A Insulation Tube Pressure Thermistor Suction Line Switch High MEC Float Switch Water Q JT Discharge Line Valve Drain Pump Motor Compressor Freeze Pump Out Access Vaive
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227. We W O WHITE ORANGE W R WHITE RED wW INTERNAL COMP START CAP PROTECTOR 340 400MFD RELAY 8k 1 DM 5 Gy R R R 4 e BK BK COMPRESSOR n COMPRESSOR p Bk w CONTROL RELAY Lo of RELAY xu 6481 BK INTERNAL 34 54 PROTECTOR FUSE cap 97 p wro wro o 24MFD GEAR MOTOR w 0 o 4 BK BK BK 115 W W CONTROL BK BK WAR R TRANSFORMER LBU NET FUSE 24VAC Leu LBU DRAIN WR INLET YX WATER H VALVE P P VALVE BK BK BK Y Y w BU 7 o W BU gk BK 4 W R WIR WR WR w BU BK BK v CONTROL SWITCH W BK W BK d L di Lo CLOSED DRAIN LBU wo diu B w 8K xi i 5 CONTROL BOARD W BK Y K7 iae svoc 3 y 41 HI PRESS 5 0 1 5 0 1 4 WO SWITCH 5 506525352 18165432 e E BU WIR WR E LBU LBU UPPER Bu LOWER FLOAT SWITCH GY e BIN CONTROL w o w o w o w o 383 5 F 1001MLH C BK BLACK 0 ORANGE BR BROWN DBU BLUE GY GRAY V VIOLET LBU LIGHT BLUE WHITE YELLOW WIR WHITE RED L N W BU WHITE BLUE W BR WHITE BROWN power W BK WHITE BLACK W O WHITE ORANGE SWITCH SOLE
228. Y ELW DE 234 10 1 15 81002 XIV 3108 ANO 3038 35 7300H 0700 310438 ANO 0H gt x BB KM 1300SRH3 09 0 2 802 10 1 15 235 CC KM 1301SAH KM 1301SWH 0810 4 I Gi VR TUN A AS 0L MAMO LI 04000 E te Lat d TEN 19 n je mo fo ig lo M i 5 p o E p E NTA 171 2M A Hn f zh wid st e ans 300 qu fe 0 8 3018 yaya Vir A E E x 3002 80102 w i 07 Ns k E ip Dn 5 lee tort 5 p iy hy 1 A Note SWH does NOT include fan 10 1 15 236 DD KM 1301SAH3 KM 1301SWH3 Serial Code UO and before
229. actor but wiring remains the same 224 10 1 15 R KM 630MAH E KM 650MAH E gt 2 9s zs 58 52 reel eue n led 5 9901090 90090 0090909909990 23 ES 59 mI Eo Ot a x amp IP 2 IE 2 B RE z e 21 x5 5 m 1 2 g ze LBU 6 1 COMPRESSOR RELAY O 3 5 Mor e BU LBU 8 _ Baws 5 8 za 3 3 E E 6 _ 5 8 x 7 5 4 79 2 1 5 z E SES 5 m E 5 SO 8 2 g m amp 914552552 52645 Em Jeja 2 2 gt 55858 E S RER aJ le ear 2 Pressure Switch Cut out 4122 PSIG Cut in 327 21 PSIG Note KM 650MAH E G board diagram 1 Prior production may have thermostatic bin control in series with fuse 2 KM 630MAH E uses E Board and resistor
230. alling remote lines always use standard refrigerant piping practices 5 Hoshizaki recommends eliminating any excess loops in a pre charged line set application as not before making the unit connections This will eliminate oil traps and possible crimps in the excess tubing A service loop can be included behind the unit as shown in the installation illustration to allow the unit to be moved away from the wall if needed 2 6 Critical Charge Amount The total system charge is critical for proper operation according to Hoshizaki specification Always weigh in the proper charge per the following charge chart Remote units show standard charge good for up to 66 ft Unit charge information is also found on the unit nameplate Cuber Charge Chart R 404A Total Charge Refrigerant Note that MRH SRH MLH models include condenser charge To convert to grams multiply oz x 28 35 Always verify total charge with nameplate amount If listed charge is different use nameplate amount 23 10 1 15 Cuber Charge Chart continued 215 15 oz R404A 24 10 1 15 Cuber Charge Chart continued KM 1601SRH 3 KM 1601SWH 3 KM 1800SAH 3 KM 1800SRH 3 KM 1800SWH 3 KM 1900SAH 3 KM 1900SRH 3 KM 1900SWH 3 KM 2000SRH3 KM 2000SWH3 KM 2100SWH 3 KM 2100SRH 3 KM 2400SRH3 KM 2500SWH 3 C1 KM 2500SWH3 DO gt KM 2500SRH3 KMD 450MAH KMD 450MWH KMD 460MAH KMD 530MAH KMD 700MA
231. aning 3 Turn power ON place control switch in ICE position Note A 5 second delay occurs due to board safety checks A 1 Minute Fill Cycle begins WV energized After 1 minute control board checks FS If FS is closed unit cycles to harvest Continue to B If FS is open unit repeats 1 minute fill cycle until water enters and FS closes low water safety protection during initial start up and at the end of each harvest Diagnosis If WV does not open check for no supply voltage at WV terminals bad coil or plugged screen or external filter no water flow If unit fails to start harvest check for open FS or bad 1 minute timer in board B Initial Harvest Cycle WV remains energized CC energizes to start C HGV amp energize FM on remote model Evaporator warms thermistor senses 48 and turns opera tion of harvest to control board defrost completion timer Timer completes counting 1 3 minutes and the unit cycles in order to freeze Note For units with the Harvest Assist feature turned on harvest re lay and S4 7 ON WV will de energize 50 seconds before the end of harvest and PM will energize to clear remaining ice Diagnosis Check to see if C is running HGV is open and WV is still open Avg harvest cycle at factory setting is 2 3 minutes How long does initial harvest last 1 5 minutes after initial harvest begins touch C discharge line Is it hot If not check refrigerant pressures and C operation If y
232. as soon as power is supplied to the unit whether the power switch is ON or OFF There are 4 green LED s which light in sequence throughout the unit operation NOTE The green LED s are not numbered consecutively is located at the edge of the board beside the K 2 transformer connection The numbering sequence from the outside edge of the board is 1 4 3 and 2 The green LED s are also used for a built in output test that can be conducted to diagnose a bad board The label ex plains the output test procedure Always assure that dip 8 is in the OFF position before doing the output test The correct lighting sequence for the output test is as follows When control switch is ON and output test switch S 3 is ON or pressed after a 5 second delay LED2 lights up 5 seconds later LED2 goes out and LED3 lights up 5 seconds later LED3 goes out and LEDA lights up 5 seconds later LED4 goes out and LED1 lights up 5 seconds later LED1 goes out and LEDA lights up to begin the normal sequence of operation If the LED s follow this sequence the board sequence is OK If any other lighting sequence occurs the board is bad A copy of the E board label is included in this handbook Review the board label thoroughly to understand the E board functions 10 1 15 Manual Reset Safeties The control board can have up to 5 manual reset safe ties They are outlined in the control board function label These safeties shut th
233. at Switch Drain Valve Drain Outlet Hot Gas Compressor Pressure Condenser 100 E 10 1 15 C KM 151BAH BWH Water Inlet Water Tank gt lt Drain Valve Drain Outlet Pressure Condenser Water Supply Water Circuit Refrigeration Circuit Water Regulating Valve 101 2 7 10 1 15 D KM 201 260BAH KM 201 260BWH Drain Water Water Regulator Supply EL Water High Pressure Switch m High Pressure Condenser Switch Water Valve EN Spray Tube Evaporator A Suction Line Drain utc ee i 1 Strainer Valve se 2 mu LP e Water Tank 5 dr 7 Discharge Line Dieng oc erotica qais Valve Cube Guid Pump Float Thermistor Motor Switch Drain Compressor Access Valve Refrigerant Circuit Water Circuit Expansion Valve Note Cleaning drain valve piping may vary slightly between models 102 m 10 1 15 KM 251BAH KM 255BAH ater Valve ior be wi dive spi High Pressure Switch Fan Freeze Evaporator Water Drier Pd Valve guration Tube E Strainer Gap Valve
234. ater Valve Spout Evaporator Condensate g Float Drain Pan Drip Pan Water Supply Switch Line Reservoir Insulation i Evaporator Overflow Thermostatic Expansion Valve Gear Motor Drain Outlet Gear Motor Drain Pan Condenser Fan Motor Remote Condenser High Pressure H Switch lt Compressor p Current production shows changes made in Water circuit FD 650MRH and F 1001MRH all production F 1001MRH from Serial C 1 H F 1501MRH from C 2 J F 2000MRH from C 0 D F 2001MRH all production 327 10 1 15 F 2000MWH F 2000MRH C Water Water Control Spout Valve Evaporator Float Reservoir Overflow Drain Outlet Condensing Unit Gear Motor Drain Pan CPR Insulation Coupling Sight Glass Condenser Fan Motor Condenser Compressor Water Circuit a Refrigerant Circuit Water Circuit shown is prior to Serial Code 0 D production Water Supp
235. ating If other failures occur the front end of the pump assembly is rebuildable If the motor fails it is easier to replace the entire assembly Following are the assembly diagram s for two generic pump assemblies Use these drawings as 1 to reassemble a pump assembly that you are rebuilding Pump Motor Assembly Diagram Smaller Style KM s sme 10 1 15 Larger Style KM s Pump Motor Assembly e T vesicae s i renee e Packing none Refrigeration Solenoid Valves Hot gas valves liquid line valves isolation valves etc are all similar in size shape and operation There are however different part numbers for these valves because they are ported differently It is important to order the correct valve for replacement Be sure to verify the correct part numbers when ordering replacement valves All Hoshizaki KM model refrigeration valves use a 115 volt coil A good coil will have a magnetic pull when energized You should be able to hear the valve snap open when volt age is applied You should also feel the magnetic pull with a small screwdriver Assure proper voltage and check for resistance in the 260 320 ohm range and replace if the coil is open You will also note that there is a bullet style screen in front of the hot gas valves This screen protects the valve port from debris and should be replaced any time a hot gas valve
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237. check for an open bin control is to flip the control switch to WASH If the pump starts the bin control is closed Mechanical Bin Control The mechanical bin control uses a moving actuator paddle to open and close a magnetic proximity switch The control is connected to the red K5 connector on the control board For E boards it connects through a resistor harness On G boards it connects through a wiring harness without resistors As the proximity switch opens or closes the switch will open and close or the resistance will change to signal the control board to start up or shut down The control board will only respond to this change during the first 5 minutes of each freeze cycle There are different styles of mechanical bin controls on various models in the field however they all work basi cally the same a When fills the bin and pushes the actuator paddle in or towards the magnetic switch the switch will open and shut the unit down b When the ice falls away from the actuator the switch closes and the unit starts Note On the E board dip switch 7 must be in the ON position for this control When dip switch 7 is ON 10 1 15 push the control paddle to the full right position and the unit should shut down within 5 seconds for the E board or 15 seconds for the G board The following 2 safeties will occur if the mechanical control fails 4 Short circuit on K5 bin control circuit 5 Beeps Open circui
238. complete cycle from the beginning of one freeze cycle to the beginning of the next freeze cycle 2 Catch all of the ice from this freeze cycle and weigh the total batch Use a dish tote large pan or plastic trash bag to catch all the ice cubes 3 Divide the total minutes in a 24 hour day 1440 minutes by the complete cycle time in minutes to obtain the number of cycles per day 4 Multiply the number of cycles per day by the cycle batch weight for the cuber production per 24 hours 1440 Total Cycle Time x Ice Batch Weight 24 Hour Production Once you calculate the production check the incoming water temperature and ambient condensing temperature at the cuber Cross reference the temperatures to performance data included in this handbook to see if the calculation falls within 1096 of the performance data specification For the most accurate production check a normal production cycle should be checked A production cycle will start at the beginning of the freeze cycle and go until the beginning of the next freeze cycle Freeze Harvest Production Cycle If the evaporator compartment has been opened for service or the unit has been cut off for a long period of time the first freeze cycle will be longer than normal because the evapo rator compartment is warm Timing this cycle can result in an inaccurate production check To avoid this 1 Start the unit and allow it to operate for 10 minutes in the freeze cycle 2
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240. dle assembly MBC is currently being implemented on larger M and S models as well For S models 1 MBC will operate both stacked heads through a wiring harness supplied with the unit The MBC assembly mounts in the ice drop zone area and will shut the unit down within 5 to 15 seconds when ice pushes the actuator paddle to the full right position away from the proximity switch Shut down will only occur during the first 5 minutes of the freeze cycle when the paddle closes magnet pivots away from the switch and the proximity switch opens If the paddle is closed and held at any other time during the sequence the unit will continue to run until the next freeze cycle occurs This feature allows for a full batch of ice every cycle so that there are no small cubes in the bin A resistor wiring harness connects the MBC to the red K4 con nector on the E control board As the proximity switch opens and closes the resistance value will change to either start up or shut down the unit a When the control paddle is hanging in the normal position the resistance red connector will be 7 9 ohms the unit will start BIN EMPTY On E Board MBC in the normal position supplies 7 9 ohms at red con nector to start unit On G Board No resistance is used Green LED marked Bin Control BC CLOSED will light Switch Closed calling for ice 10 1 15 b When the paddle is held to the right the resistance a
241. duction Clean the filter twice a month with warm soapy water to assure proper air flow Other cleaning In addition to cleaning the reservoir and water distribution system these items should be cleaned with cleaning solution and rinse thoroughly The float switch and boot should be cleaned Always drain the reservoir and clean and inspect the float switch housing and float assembly Also clean reservoir tube along with the float boot To assure proper operation also disassemble and clean the pump out check valve housing and seat and the mechanical bin control as sembly if included in your model Make sure the reservoir is thoroughly flushed prior to advancing to the sanitizing step Sanitizing The system should be sanitized using a solution of water and 5 2596 sodium hypochlorite chlorine bleach Any com mercial sanitizer recommended for ice machine application is acceptable Recommended Sanitizing Solution Mixture AM 50B KM 61 260B KML 250M 0 5 FI oz 1 0 Gal KMD 410 460 530M 0 9 Fl oz 1 8 Gal KML 350 351 450 451M KMD 450M 1 0 Fl oz 2 0 Gal KML 600 631M KMD 700 1 25 Fl oz 2 5 Gal KMD 901M KMS 822 830M DCM 270B 1 6 Fl oz 3 0 Gal KM 320M 901M KMS 750 1230 1400 1401M 2 0 Floz 4 0 Gal 13015 1340 16015 2 5 Fl oz 5 0 Gal KMS 1122 2000M KM 1800 1900 2000 2100 2400 KM 2500S KMH 2000M 3 5 FI oz 7 0 Gal 10 1 15 KM Production Check The steps for a cuber production check are as follows 1 Time a
242. e problem area Study these shapes and causes to help you diagnose water related problems 1 Normal cube No problem Average cube size 1 2 thick x 1 1 8 wide x 1 1 2 high 2 Larger than normal cube with heavy saddled edges Note Normal cube may have slight saddled edge If the float switch sticks in the up position closed the unit will have a consistent 60 minute freeze cycle This will result in heavy saddled edges and may cause pump cavitation and ice to stick on the evaporator or ice bridging see 3 Note f ice sticks due to larger edges a freeze up may QUO 3 Bridging Ice Strips a Bridging that occurs on all ribs of all evaporator plates is the result of excessive water in the reservoir This is caused by the inlet water valve leaking by Check for a plugged bleed port in the water valve diaphragm or a defective water valve b May be the result of larger than nor mal ice cubes see 2 Bridging can occur on a few ribs if some of the holes in the water distribution tubes are plugged An inspection of the ice build up on the evaporator will show some ribs with no ice and others with strips Clean the water distribution system 922 10 1 15 d Bridging on 1 or 2 plates of a multiple evaporator unit can result from water distribution problems or a refrigeration system problem Eliminate water problems first then check TXV hot gas valve charge etc Note Bridging will
243. e unit is now in the 1 minute fill cycle G Board LED s light in the following sequence during the S3 outpost test 1 4 3 2 back to 4 Note If the LED s light in a different sequence or the 5 second interval does not occur as explained the control board is bad and should be replaced If the test sequence is correct turn the control switch OFF and switch S3 OFF The S3 switch must remain in the OFF position during normal operation The components will cycle during this test 5 You have checked the board sequence and now need to check the output to each component through the K1 10 pin connector for 115 volts Follow the wiring color code on the wiring diagram or use the generic drawing in the wiring diagram section to check each component for 115 volts through out the sequence and check from each pin to a white wire Note Checking from pin to case ground can give a false reading in some instances Always choose a white neutral wire to establish a good neutral connection when checking voltages Bin Control Checkout for the bin control will vary depending on the model and control that is used a Thermostatic Bin Control The thermostatic bulb is mounted in the ice drop area to sense the ice buildup To adjust the bin control hold ice against the bulb while the unit is operating You will find it easier to place the control switch to the wash position to check the bin control operation It is easy to hear the pump motor stop
244. e unit down and assist the service technician in diagnosing the problem The safeties include the following audible and visual alarms 1 127 F 52 8 C high evaporator temperature safety 2 Beeps amp orange LED 2 consecutive 20 minute harvest cycles 3 Beeps amp yellow LED 2 consecutive maximum freeze cycles With Dip Switch 7 ON Mechanical Bin control installed 4 Beeps Short circuit on mechanical bin control circuit 5 Beeps Open circuit on mechanical bin control circuit To reset either safety Press the white reset button on the control board with the power ON Next proceed to check the items outlined on the function label The items listed on the function label represent the most common reasons that will trigger the safety Voltage Protection Built in voltage protection for the E board will automatically shut the unit down and beep to signify that a high or low voltage problem has occurred 6 Beeps Low voltage condition 7 Beeps High voltage condition A voltage alarm will automatically reset when voltage is corrected If a voltage alarm occurs check the power supply circuit to assure an independent circuit is used and that all external connections are secure If voltage alarm continues contact an electrician or the power company The high and low voltage protections are the only board alarms that automatically restart the unit This occurs when the voltage returns to normal If con
245. eaning Sanitizing Procedure 96 KM Production 98 Cuber Water Refg Circuit Reference Chart 99 Performance Data Cuber iini ect Hia 121 6 M 122 123 KM 151B Hiis 124 KM 201B 125 2 Hee 126 25 2e ioni terti erepti RES 127 255 eire et 128 26 129 2 Ea Se EERDERE EN 130 2 aiii ene ue cotes iae 131 3 10 1 15 serio 132 320 133 KML 350M Elise icri 134 35 135 KMD 410M 136 ME SOM 137 KMD 450M iiir tete conos 138 IKMESAS DM siii tenen itc tec titre 139 460 _ eere 140 461 _ rn 141 DKM 500B_H 142 50 143 KM 501M 144 515 iiie rti 145 KM 515MALEPE nitet trente 146 600 147 Mis m 148 KML 600MWH Serial LO M1 149 KM 630M H eem 150 6
246. egz 05 8c sc lt 8c 66 62 97 Sc Sc Sc GT ra m 8c LZ ez ez 97 Ez Ez vz 6T 87 97 ez ez 6T Ez Ez 6T 05 509 559 ses 002 sez 569 og sez 8 598 078 068 06 059 soz seo lt 508 sog ozs 568 0 6 2 0 5 S 9 OzL S99 ose OLL Ss ses ozs sss 066 068 0 6 or os Moute J918AA JV J918AA J918AA 22 23 dwa sagem UST X SdI Sl 8 00T c 06 47 08 0L 2 53 dwa juaiquiy 087 72 26 04 06 VOT ASTT 404 1 09 02 2 807 Ajddns 39NVIAHOHH3d Vc v VL 1 saupc eo oe OT TZ 05 04 HM 10 uonduinsuo 4 3 018 20559194109 e8ejeduuy 10 H INTOOT 3 10 1 15 347 10 1 15 Ot SE Iv LE SE 8 96 SE SE ve SE ze 06 Ov ve LE vE 8 ve SE ve ve 0 4 Ov LE 8 9 SE ve 05 S6 692 LTE 942 692 SEZ 692 ozz 692 25 06 epis 567 992 LTE 957 992 117 SEZ 992 ozz 992 12 04 S6Z LTE 957 LL SEZ 297 ozz E9Z 0 06 8c
247. es touch inlet line to the evaporator Is it hot If yes but unit is not starting freeze cycle check defrost completion timer adjustment thermistor 68 DEUS 10 1 15 for open circuit discharge line temperature C efficiency and that HGV is fully open Freeze cycle C remains energized PM LV on RS model and FM energize WV amp HGV de energize Unit is held in freeze by 5 minute short cycle protection timer After 5 minutes freeze cycle operation is transferred to FS for freeze termina tion During first 5 minutes of freeze confirm that evaporator temperature drops After 6 minutes in freeze drain water and allow FS to drop to test FS operation or remove FS lead from K5 connector Unit should switch to B Harvest after 15 seconds Diagnosis If evaporator is not cold check for HGV still open TXV not opening properly WV continuing to fill reservoir improper unit pressures and inoperative C If unit remains in freeze with FS removed replace board Normal freeze cycle will last 20 40 minutes depending on model and conditions Cycle times and pressures should follow performance data provided in Tech Specs Note At this time you have checked everything but the Pump D Out Cycle You will have to repeat B and C to check the pump out feature after the next harvest Pump Out Cycle In this 10 20 second pump out C remains energized HGV energizes FM de energizes PM stops for 2 seconds and
248. eset High Pressure Switch Cut in 2948 PSIG Cutout 384 PSIG Differential 20 13PSIG Curou 3 25 PSIG Cutin 284 22 PSIG 9 PSIG Differential 6 PSIG 388 10 1 15 lt X F 1500MAH C MWH C MRH C 208 230 60 1 3 NEUTRAL FOR 115V be NEUT CRANKCASE HEATER HEATER AW START 145 174MF lt 200 FOR REMOTE AND WATER VENTILATOR 1 389 starrer 2 05 TRANS POWER SWITCH TRANS SWITCH 24 LBU FUSE OK SPOUT INDICATOR CONTROL WATER VALVE FLUSH SWITCH n 1 2Q t FLUSH TIMER KONTROLI 1 RELAY 4 39 5 79 1 WIR 1 WIBR FLUSH VALVE DBU 545 FLOAT SWITCH CIRCUIT PROTECT RELAY Y 1 i d Kuh amp 4 BRI 4 THERMAL GEAR MOTOR PROTECTOR 1 g 65 HFD 8 4 91201 W GEAR MOTOR a RELAY 0 K TANE d SPOUT CONTROL RELA 3 4495 011 10 1 15 Y F 1501M H C SI DIP SWITCH SETT
249. euin E o 92994 01 05 NP c 06 0L 541 05 s1nou pc 4J918AA J918AA 2 4 sq 3y 8 00T 2 4 dwa 8661 TZ ZE 04 06 siupc Je5 Ov9T OT TZ 04 0 Jesuepuo HMS 104 uonduunsuo sod 0912 59 e zt 2 Jad Y6 OT lt 9 VET V8T viTH 10559 5 0 40 T 09 0EZ 80Z 8 Ajddns SO08L INM 10 1 15 189 BY si aunssaJg 82824 301 310 uonons aanssald apis 94155944 35 9799 14 a A5 CLET 149 6ZVT CELT vert TEST LOLT LOST 8191 92 1 1691 ze 06 8951 59 1 60ST 5651 8441 ZEST 8591 YO9TT 99 1 1691 0L 541 1691 1651 Cu 99 1 1691 SELT S9 1 LOLT GLLT 19 1 LSLT 0T 0S 4 3 AV ajoway ajoway ajoway 2 4 1 3 8 001 c 06 42 08 Ic 0L 5 4 dwa 5 2821 2 26 04 06
250. f harvest to allow this flushing action To extend this flush ing action adjust dip switches 1 amp 2 for longer harvest If overflow does not occur you likely have restricted water flow into the unit Check the inlet water valve screen incoming water line size or the external filter system The displacement device must be in position for proper operation If not water goes down the drain during freeze and short cycling occurs Pump Out Check Valve On standard KM models A mechanical spring amp seat check valve is located in the pump out housing If this check valve sticks open water flows down the drain during freeze and a 5 min ute freeze cycle occurs In this case check for a displaced seat trash or a weak spring Replace the spring if itis weak When reinstalling the check valve the seat always faces the pump supply An o ring seals the housing to the reservoir Pump Out Check Valve Parts KM 320 433468 01 322110 01 7611 G035 KM 515 600 650 900 901 1301 1800 1900 2000 2100 433705 01 322110 01 7611 G035 2400 2500 KM 1340 1601 433705 01 322685 01 7611 G035 KML Small KMD Pump Out The standard KM series has a dual winding pump motor that reverses direction during the pump out cycle The reverse rotation pumps sediment down the drain The KML models have a single winding pump motor that does not reverse Instead of a pump out check valve and reversing pump a drain solenoid and the pump motor are energized b
251. fety checks A 1 Minute Fill Cycle begins WV energized After 1 minute control board checks FS If FS is closed unit cycles to harvest Continue to B If FS is open unit repeats 1 minute fill cycle until water enters and FS closes low water safety protection during initial start up and at the end of each harvest Diagnosis If WV does not open check for no supply voltage at WV terminals bad coil or plugged screen or external filter no water flow If unitfails to start harvest check for open FS or bad 1 minute timer in board B Initial Harvest Cycle WV remains energized CC energizes to start C HGV amp energize FM on remote model Evaporator warms thermistor senses 48 F and turns operation of harvest to control board defrost completion timer Timer completes counting 1 3 minutes and the unit cycles in order to freeze On H models WV stops and pump starts for last 30 seconds of harvest Diagnosis Check to see if C is running HGV is open and WV is still open Avg harvest cycle at factory setting is 2 3 minutes How long does initial harvest last 1 5 minutes after initial harvest begins touch C discharge line Is it hot If no check refrigerant pressures and C operation If yes touch inlet line to the evaporator Is it hot If yes but unit is not starting freeze cycle check defrost completion timer adjustment 66 72 7 10 1 15 thermistor for open circuit discharge line tem perature C eff
252. g NOTI23NNO3 avis Us no 9919 iam TTE 140 ug 3 10810 NI DAEN 10553840 49 130 xis JAWA WIL TEN RE ug ag ug ago I TG Og 190 NIVHO IN H2LINS 1081802 10 1 15 366 B DCM 270BAH WIRE COLOR CODE 115 120V 60HZ 1 6 N BR BROWN BK BLACK DBU DARK BLUE LBU LIGHT BLUE GY GREY BK 0 ORANGE 4 P PINK POWER SWITCH R RED V VIOLET R WHITE Y YELLOW WHITE BLACK W BR WHITE BROWN W BU WHITE BLUE W O WHITE ORANGE AGITATION TIMER SOLENOID WR WHITE RED BR 60 MOTOR PROECTOR THERMAL GEAR MOTOR KB6 0 Ia GY 0807 GEAR MOTOR HGH PRESSURE PROTECT RELAY 8 WBU 6 DBU COMPRESSOR 1 COMP R BR PROTECTOR gt 0 es 1 BR KBI od STARTER DISPENSE BR Eb RELAY eie 2 3 lt 5 EE Y FAN
253. he unit down 61 n 10 1 15 duind Wd U91IMS 180 5 4 9 0UI9J SARA J9 EM jU AM se6 you 40 OW 105 14 dwog 1 14 sumaa pue sdojs 105591909 uado S 5 4 pezibieue ep senunuoo dwog 94054 pezibeue ADH pezibieue 3 spejs aw sepofo 1 uoee Wd 4019194109 15090 pezibieue 7295 02 01 10 59519 pezifueue ep AM sse 10 suuoy e c senuguoo AM uedo s ueujspuooes 210 peuinjuogejedo _ pezi amp ieue ep ADH 9 6 4 87 Seuoee pezibieue ASH Sdojs duind 929914 409 dwa pezibieue dwog pezibieu3 AM puooes pem 3 lt t 9 4 lt 9500 5 4 4 alay suibeq _ 104002 ouoo lt 10002 skeme reul 54 eupemuug awy anulu gt 10151390 p 09 92994 WNWIXEN Sejnuiui jseAreu 2 dung G 97994 9 eA eA 1 9290914 159 mco lt 54315 31049 99 pue eys 4 21529 10 1 15 10 1 15 you
254. iciency and that HGV is fully open C Freeze cycle C remains energized PM LV on RS model and FM energize WV amp HGV de energize Unit is held in freeze by 5 minute short cycle protection timer After 5 minutes freeze cycle operation is transferred to FS for freeze termination During first 5 minutes of freeze confirm that evaporator temperature drops After 7 minutes in freeze remove black FS lead from K5 connector Unit should immediately switch to pump out cycle Drain water from the reservoir to allow FS to open normally to verfy FS operation Diagnosis If evaporator is not cold check for HGV still open TXV not opening properly WV continuing to fill reservoir improper unit pressures and inoperative inefficient C If unit remains in freeze with FS removed replace board Normal freeze cycle will last 20 40 minutes depending on model and conditions Cycle times and pressures should follow performance data provided in this handbook or unit service manual D Pump Out Cycle In this 10 20 second pump out C remains energized HGV energizes FM de energizes PM stops for 2 seconds and starts in reverse rotation for 10 20 seconds This removes contaminants from the water reservoir through check valve down the drain and allows for power flush of FS Check clear tubing at check valve housing or unit drain for water flow Diagnosis If PM does not reverse check PM circuit and capacitor If water does not pu
255. in controls The type of bin control will vary depending on the unit style or model and serial number 1 Thermostatic Bin Control The thermostatic bin control TBC is the primary control that supplies 115 volts to all major components in the unit except the compressor When this control is closed 115V is supplied to the control transformer and the K1 control board connector the board switches 115 volts to the components as the sequence dictates A thermostatic capillary bulb is mounted in the ice drop zone area or on a drop down bracket which extends into the bin 54 10 1 15 cavity The TBC opens on temperature drop and closes on temperature rise When ice touches the thermostatic bulb the bulb pressure opens the bin control contacts to shut the unit down The unit will not operate in the ICE or WASH position unless the TBC switch is closed The TBC will shut the unit down at any point in the sequence of operation if ice contacts the control bulb Shut down time depends on the control adjustment This adjustment is factory set however it should always be checked at start up or after replacement to assure proper operation The factory setting is to shut off within 3 10 seconds after ice contacts the bulb NOTE High altitude areas require adjustment When ice is moved away from the bulb the unit will always restart during the 1 minute fill cycle Larger M and S models include a drop down bulb bracket Th
256. in the service manual to determine which voltages are applied to which connectors Line voltage 115V is connected to the control board on the X1 compressor relay and on K1 connector A thorough control board check out procedure is available in the unit service manual DCM Control Boards Until the F A control board was developed DCM models used a series of different control boards The introduction of the Opti serve features required additional relays and functions The F A control board includes the OS function along with the additional safeties and adjust ability result ing in a universal F DCM board Following is a brief explanation of the control board part numbers used on the DCM lineup DCM 270B used control board 4A5591 01 up to serial code 0 H After 0 J serial it uses the F A board 442649 01 The standard DCM control board used on the DCM 300 500 750B models is board 2A1592 01 10 1 15 V FLUSH 0 6 8 9 6 7 7 COUNTER O O s wur 52 51 K4 AM COMP GM u 37158000 m K2 K1 O RED WHT 2A1592 01 DCM 270BAH OS Serial code C 0 used control board 2A2867 01 P N 2 2867 01 O 0 nii a i a Ap C i 2A2867 01 or 2A2649 01 DCM 270BAH OS serial code C 1 and after used the F A control board 2A4296 01 DCM 751B_H OS also use the F
257. in the function of the F A control board The mechanical flush timer is eliminated on units that use the F A control board F A Board Flush On the F A control board the unit does not shut down to flush There are 2 setting options available By switching dip switch 4 the unit will flush drain as follows 1 5 4 OFF gt Standard setting The drain valve will open for 2 seconds every hour and the unit continues to oper ate This allows sediment to purge while maintaining ice production 2 5 4 gt Optional setting Every 12 hrs the unit will cycle down and allow for a 10 minute drain cycle F A Board Voltage Protection The maximum and minimum allowable supply voltages of this ice maker are limited by the high voltage 147 5 or more and low voltage 92 5 or less cut outs When high voltage 147 5 or more is present the ice maker automatically stops and the control board sig nals with a 7 beep alarm every 5 seconds When low voltage 92 5 or less is present the maker automatically stops and the control board signals with a 6 beep alarm every 5 seconds This safety automatically resets When the proper supply voltage is resumed the ice maker automatically restarts DCM Sequence of Operation DCM sequence for the ice making unit is similar to the F 330B with a delay of the compressor at start up and a delay of the gear motor at shut down A periodic flush is also incorporated i
258. ing or ineffenceint Comp To reset the above safties press the Alarm Reset button with the power supply ON Low Voltage Red LED turns off if voltage protection operates 92Vac 5 or less The control voltage safties automatically reset when voltage is corrected 7 High Voltage 147 Vac _ 5 or more Legend Comp compressor DV drain valve FM Fan motor FMR fan motor remote F S float switch HGV_hot gas valve HM headmaster C P R LLV liquid line valve PM pump motor TXV thermostatic expansion valve WRV water regulating valve WV1 inlet water valve 1 WV2 inlet water valve 2 if applicable To preform an output test first move the control switch to the ICE position Press the OUTPUT TEST button The correct LED lighting sequence is 5 6 7 8 9 4 Components e g compressor cycle during the test Each LED stays on for 5 seconds LED 5 stays on while LED 6 is on Following the test the ice maker resumes operation Adjust Dip Switches per the chart in the unit s service manual 43 10 1 15 H Board Dip Switch Designation S1 Dip Switch S2 Dip Switch Anti Slush Pump Timer Factory Use 5 7 amp 8 Refill Counter 3 amp 4 Pump Out Frequency Control 5 amp 6 Float Switch Selector 2 Pump Out Drain Selector 1 Pump Out Timer 3 amp 4 Harvest Timer 1 amp 2 Note S2 Dips must be set to factory setting by model DO NOT vary from Factory settings Dip 5
259. ip switches have different functions from E board 3 Do not adjust dip switches 3 4 7 amp 8 from factory setting 4 Do not adjust 5 amp 6 on KM251 255B since they have multiple fill cycles 5 If G Board is used without a mechanical bin control a jumper must be istalled on the red K4 connector Additional Dip Switches Board S5 amp Board S2 Dip switches are factory set and SHOULD NOT be adjusted SWITCH CODE seo OFF mmer o0 120 100 TIME PERIODIC PUMP OUT FREQUENCY ON YES OFF NO TEST ALWAYS OFF MAX FREEZE TIME KI minutes 75 50hz 70 50 60 60hz 35 10 1 15 we Pow 515 fo o a Peso 1 o o o Mi folo pep pp Peso pop KM 901MW RH KM 901MRH3 KM 901MAH E KM 1301SAH 3 KM 1301SWH 3 KM 1601SAH 3 pee pop 13015 10 1 __ __ 14008 WH M3 KM neseno KM 1900SAH 3 S osos WE 10 1 1
260. is bracket should be secured to the unit base and the control plug connection must be made before the unit will operate A bin control extension bracket is included with all S models It is secured to the drop down with a wire tie Be sure to install the extension bracket When installing make sure the bracket points downward with the elbow joint facing out so that the cubes will easily fall away from the bin control bulb as shown in the following illustration 10 1 15 Bin Control Extension Brackets Various bin control extension brackets are available for special applications These may be necessary in certain applications to reduce ice meltage around the bin control This can occur in applications with low usage and in dispenser applications While most are special order parts some models include an extenion bracket specifically for use on dispenser applications Application chart for various extension brackets Application Control Height 1 HS 0239 Standard Dispenser or low usage Adjust to 3 below unit on 22 KM models on bin For MBC or TBC ABS 2 3A7049 01 gt Optional for use on KM Modular units 3 4 4633 01 or HS 0239 gt Optional 4 HS 0207 Standard on certain KMD KMS models Optional for and other models 5 HS 5062 Optional 6 HS 0246 5210 02 Low usage on bin KM 901M only Optional For MBC only Relocate TBC or MBC for 7 3A8319 01 gt Optional Longer HS 0239 for dis
261. it The boot should be cleaned thoroughly during scheduled maintenance Due to age and high amounts of chlorine in the local water supply it can also deteriorate and may cup upward in the middle holding the float up In this case the boot should be replaced Order part number 426799 01 as universal replacement part and cut the tube to length as needed Universal float boot 426799 01 Cut tube to length _ 76 a 10 1 15 Thermistor Thermistor part number 429006 03 can be used as a universal replacement for all E and G board units except DKM 500B which uses longer part number 429006 06 H board thermistor P00027 01 has a unique connector For all KM Thermistors check out the thermistor mounting and check resistance versus temperature per this chart THERMISTOR TEMPERATURE RESISTANCE SENSOR TEMP F RESISTANCE K OHMS n mistor are bad ther OPEN 20 minute harvest cycle The unit will shut down on a 2 beep safety after 2 consecutive 20 min ute harvest cycles SHORTED Unit locks out on manual reset high tem perature 1 beep safety and will not reset in this case High Temperature Safety If evaporator reaches 127 F the thermistor signal 500 ohms shuts down the unit on this manual reset A 1 beep alarm will occur To reset this alarm press the Alarm Reset button on the board with power ON Then check the items listed on the control board label for a 1 beep alarm Note The Thermistor mus
262. it should be level front to back side to side to assure proper evaporator water level and maximum production This is necessary because of the gravity feed water distribution Cubelet Models The DCM product produces cubelet ice Most flaker models are also available to produce cubelet ice This requires a dif ferent extruding head and cutter at the top of the evaporator assembly and in most cases the addition of an evaporator barrel heater The flaker models which are produced as cubelet models are designated by a C at the end of the model number Example F 1001MAH C It is important to note that converting a flaker to a cubelet maker reduces the overall production by around 8 10 This drop in production is due to the compacting of the ice in the extruding head The flaker gear motor is sized to handle the extra load of producing cubelet ice with only a slight increase in the running amperage The evaporator outlet temperature and operating pressures will be similar to the standard flaker model Use the temperature and pressure information pro vided on the standard flaker performance data provided as a bench mark when diagnosing a converted cubelet C unit Installing Cubelet Models on Dispensers The cubelet models produce a hard chunklet of ice This ice will dispense well as long as the dispenser is set up for dispensing cubelet chunklet sometimes called nugget style ice Astandard dispenser will crush the cubelets and pack
263. itional refrigerant in 2 Ib increments and watch the pressures If the pressures begin to look normal the unit was undercharged In this case Leak check the system to find the leak Use normal refrigeration practices to recover repair evacuate and recharge the unit If not A bad headmaster is a possibility Check to see if the valve is stuck open by conducting temperature checks at the outlet of the headmaster Replace the headmaster as necessary Use safe refrigeration practices when removing the valve and protect the valve from overheating 10 1 15 High Pressure Safety Switch An automatic reset high pressure safety switch is utilized on all Hoshizaki ice makers The typical high pressure switch is an automatic reset switch with a long capillary tube In the future this switch will be changed to a stub style switch with a large diameter pipe instead of a capillary tube Look for this stub HP switch on recent and future production Pressure switch part numbers amp settings are as follows Pressure Switch Chart R 404A Models Capillary type part number cut out cut in psig psig All DCM water 433441 05 cooled DCM 270 and Flaker DCM 500 750BAF 433441 07 412 327 KM Air 4 Remote 21 3 21 3 Stub Type part number cut out psig KM Air amp Remote 463180 04 412 21 3 327 21 3 KM Water 463180 05 384 21 3 213 Bin Control KM cubers will use one of three types of b
264. l Board Adjustment Guide The early E boards have 8 dip switches The latest E boards have 10 dip switches E Board Dip Switch Setting Guide Switch Code 1 0 DEFROST 0 1 0 COMPLETION 0 0 1 TIMER seconds 60 90 120 PUMP OUT 3 0 1 0 TIME 4 0 0 1 Length of pump out 10 10 10 20 Min Defrost Time 150 180 120 180 Inlet Water Valve OFF OFF ON OFF PERIODIC 5 0 1 0 1 PUMP OUT pee 12 BIN CONTROL 7 OFF for thermostatic control Awwsorr MAX FREEZE Default baad ony 4 o minutes 75 5onz 70 50 60 60hz NOTE 1 TO IMPROVE BUILT IN CLEANING Adjust switches 1 amp 2 to provide for longer flush and switches 5 amp 6 to every cycle pump out 1 1 Do not adjust 1 amp 2 on KM150 250 in high ambient area 2 DO NOT ADJUST 3 4 7 8 9 amp 10 from factory setting 3 DO NOT MAKE CONNECTION to the red K 4 terminal unless a special bin control red connector is provided Dip switch 7 must be ON in this case 4 Dip switches 9 amp 10 are on improved E board only 31 10 1 15 Board 54 Switch Setting Chart The chart below reflects the factory dip switch settings for R 404A models using the E board Adjustments may be made to switches 1 2 5 amp 6 to improve the built in cleaning ability as per the DIP SWITCH SETTING GUIDE f you replace a control board match the cleaning settings with the original board Switches 3 4 7 8 9 amp 10 must remain
265. l safe cleaner it is important to note that if it contains a citric acid it is not recommended for Hoshizaki products as citric acid is can affect tin solder Remember that KM models have larger reservoirs and re quire more cleaning solution than other ice makers Recommended Cleaning Solution Mixture Cleaner AM 50B KM 61 260B 5 0 Fl oz 1 0 Gal KML 250M 6 0 Fl oz 1 0 Gal KMD 410 460 530M 9 5 Fl oz 1 8 Gal KMD 450M 9 6 Fl oz 1 6 Gal KML 350 351 450 451M 10 5 Fl oz 2 0 Gal KML 600 631M 13 5 Fl oz 2 5 Gal KMD 700 850 900 901M KMS 822 830M KM 320 901M 16 0 Fl oz 3 0 Gal KMS 750 1230 1400 1401M 22 0 Fl oz 4 0 Gal KM 1301S 1340M 1400 1601S M 27 0 Fl oz 5 0 Gal KMS 1122 2000M KM 1800 1900 2000 2100 2400 25008 20005 38 oz 7 0 Gal Note For a longer circulation time may be required if heavy scale is present Additional cleaner may added to provide a stronger solution for KM s with heavy calcium or iron scale Assure that all scale is thoroughly removed dur ing from the places during the cleaning process 96 _ 7 10 1 15 Additional Cleaning Inlet Water Valve Screen The inlet water valve includes an 80 mesh screen to protect the water system from debris Always check and clear this screen during the PM cleaning procedure Air filter A removable cleanable mesh air filter is included on self contained air cooled units A dirty air filter will cause high head pressure and reduce pro
266. le the harvest cycle begins The hot gas valve opens and the compressor continues to run The drain timer starts counting the 10 20 second pump out The water pump stops for 2 seconds and reverses taking water from the bottom of the reservoir and forcing pressure against the check valve seat allowing water to go through the check valve and down the drain At the same time water flows through the small tube to power flush the float switch When the drain timer stops counting the pump out is complete On the E amp H boards pump out always occurs on the 2nd harvest after startup These control boards allow for adjustment so pump out occurs every cycle or every 2nd 5th or 10th cycle from this point Note On G board the first pump out will vary depending on the adjustment of S4 dip switches 5 amp 6 It does not occur on the second harvest as mentioned above 5 Normal Harvest Cycle The water valve opens to allow water to assist the harvest As the evaporator warms the thermistor reaches 48 the control board receives the thermistor signal of 3 9 K ohms or less and starts the defrost timer The water valve is open during harvest defrost for a maximum of 6 minutes or the length of harvest whichever is shorter When the defrost timer completes its count down the defrost cycle is complete and the next freeze cycle starts The unit continues to cycle through sequence steps 3 4 and 5 until the bin control senses ice and shuts t
267. le pole single throw 3 position Switch 1 Placing the switch to the DRAIN position will close contacts 1 amp 2 to open the drain valve 2 Placing the switch to the CIRCULATE position will open these contacts and the pump continues to run 3 Placing the switch to the WASH position will close contacts 2 amp 3 and open the water bypass valve 71 10 1 15 Control Board Fuse Beginning in May 2002 Hoshizaki introduced a 10 Amp control fuse on KM models This feature was added to specific models as they were produced The fuse is located in a fuse holder which is mounted on the control box and connected in the circuit supplying 115V to the control board 10 pin connector through pins 10 amp 7 The purpose of this fuse is to protect the control board from damage in case of a short circuit in one of the components This fuse will also offer some protection against external wiring problems voltage spikes and surges If the fuse is blown you should isolate each individual com ponent and check for shorts and or grounded conditions with a good quality ohm meter It is important that any external wiring connections including the remote condenser circuit be checked before replacing this fuse If the problem is not corrected the fuse will blow again It is not recommended to bypass or up size the fuse as this will likely create an overheat condition and could result in a shock hazard or component damage The defective component
268. loat Switch Expansion Valve Refrigeration Circuit Water Circuit 105 10 1 15 DKM 500BAH BWH KML 250MAH MWH KML 350MAH MWH KML 351MAH MWH KML 450MAH MWH KML 451MAH MWH KML 600MAH MWH KML 631MAH MWH Condenser Spray Tube Mad High Pressure Evaporator VaM Switch Heat Exchanger Strainer Discharge Line compressor Access Valve Regulating Valve Water Supply J KML 600MRH KML 631MRH Condenser Unit Spray Tube Water m r1 Valve oss condenser High Pressure onnecting Switch Evaporator m e a Water T Supply Receiver Tank Access Valve Cleaning Valve Thermistor eH Fusible Plug Drier Drier Insulation 7 Line Valve Tub Heat Exchanger Strainer Hot Gas Valve Access Valve Discharge Line j Access Valve NExpansion Valve _ 106 Dm 10 1 15 K KM 461MAH MWH KM 501MAH MWH KM 501MAH E KM 515MAH MWH KM 515MAH E KM 600MAH MWH KM 630MAH MWH KM 630MAH E KM 650MAH MWH KM 650MAH E KM 900MAH MWH KM 900MAH50 KM 901MAH MWH Water Regulating Valve TIT f Fan 6 High Pressure Water Supply 2 oa Liquid Line Valve H KM 515MAH Heat Thermistor Exchanger Strainer Float Switch Hot Gas
269. loat Switch Red upper __ Black common Blue lower Magnet towards top Upper Float blue Spring Retainer Clip Magnet towards top Lower Float white Plastic Retainer Clip 295 10 1 15 Flaker Safety s Mechanical failures in an auger style ice machine can be time consuming and expensive repairs Hoshizaki has incorpo rated several safety s in our Flaker and DCM units which add protection against this type of failure The following safety s are included in all Hoshizaki F and DCM units 1 Low water safety Designed to protect against dry operation or possible freeze up in the evaporator due to low water flow This safety utilizes the dual float switch and a 90 second timer to shut down the unit when water flow is interrupted The unit will automatically restart when water flow is resumed Protect relay safety This safety incorporates a relay in the gear motor circuit and will not allow the refrigeration system to operate unless the gear motor is running If the gear motor fails during normal operation the protect relay shuts down the compressor to protect against evaporator freeze up Gear motor circuit safety s The gear motor has 2 additional safety s which will operate if the gear motor is subjected to excessive load or improper voltage A current type manual reset safety or slow blow fuse is located in the control box and will trip when the gear motor amperage exceeds normal
270. ly Line Condenser Drain Outlet Water Regulating Valve 328 m 10 1 15 DRAIN OUTLET SOLENOID VALVE STRAINER ACCESS ux VALVE Q F 2000MLH CONTROL SPOUT WATER VALVE FLOAT SWITCH 57 WATER LEVEL EVAPORATOR 4 RESERVOIR OVERFLOW m DRAIN PAN MULTI RACK CONDENSING ACCESS VALVE SOLENOID VALVE ETE D i 2055 wl WATER CIRCUIT lt REFRIGERANT CIRCUIT Water Circuit shown is prior to Serial Code C 2 L production 329 EP REGULATOR 10 1 15 R F 2001MLH C Inlet Water Valve Evaporator Condensate 5 Float Drain Pan Pan Water Supply Switch d Reservoir 1 Insulation Water Level Evaporator Thermostatic Expansion Valve Gear Motor Drain Outlet Gear Motor Drain Pan Liquid Line Valve gt From Rack System Evaporator Pressure Regulator EPR Valve Suction Line Valve To Rack System Current production shows changes made in Water circuit F 2000MLH from C 2 L F 2001MRH all production 330 10 1 15 c 06 uonons 12 07 enssaJd 0T 05 ZE 06 12
271. may cause squeak ing or squealing noise due to extruding the poor quality ice If there is excess scale fill the evaporator assembly and reservoir with cleaning solution per the instructions then use a clamp on the reservoir hose between the reservoir and evaporator assembly to block flow Pour additional cleaning solution over the extruding head until the evaporator as sembly is completely full This will soak all evaporator parts to loosen scale If the unit has not been cleaned or de scaled for a long period it may be necessary to pull the auger and use a Scotch brite pad Use vertical motion to remove heavy scale from the evaporator barrel surface nmn 307 2 10 1 15 Additional Cleaning Inlet Water Valve Screen The inlet water valve includes an 80 mesh screen to protect the water system from debris Always check and clear this screen during the cleaning procedure Air filter A removable cleanable mesh air filter is included on self contained air cooled units A dirty air filter will cause high head pressure and reduce production Clean the filter twice a month with warm soapy water to assure proper air flow Other cleaning In addition to cleaning the reservoir and water distribution system other items should be cleaned with cleaning solution and rinsed thoroughly The reservoir and float switch should always be cleaned Drain the reservoir and clean and in spect the float switch assembly Make sure the reservoir is
272. meter When the float is up the switch is closed When the float is down the switch is open Sticking Float Switch It is important to remember that the float switch is in the water circuit and is susceptible to scale buildup This can cause the float to stick up or down If the float switch is sticking it should be cleaned thoroughly with ice machine cleaner and checked for proper operation If the float switch is defective it should be replaced Note that a dirty float switch is not considered a warranty item Heavy scale can be difficult to remove from the float The float is available as a replacement part as well as the float pin If the housing is defective replace the complete float switch assembly The symptoms of a sticking float are UP CLOSED 60 minute freeze cycle larger cubes and pump cavitates prior to harvest T Went Tube After 2 consecutive maxi mum freeze cycles the unit will shut down on a 3 beep safety Flush Tube Shaft To reset this alarm press the Alarm Reset button on the board with power ON Float DOWN OPEN Unit shuts down on low water safety and water runs continu ously Float Float Number Retainer 4A3624F02 Retainer rod number 4A1141 01 Rubber Boot and Hose Switch Housing 10 1 15 Universal Replacement Float Switch There are two styles of KM float switches One has no hole in the outside pipe and one has a hole in the outside pipe Float switch
273. mp two cycles in a row pr WRV leaking by Freeze Timer Check for F S stuck closed up WV leaking by freeze gt freeze timer HGV leaking by PM not pumping TXV not feeding setting for two cycles properly LLV not opening low charge HM not in a row bypassing or ineffenceint Comp To reset the above safties press the Alarm Reset button with the power supply ON Low Voltage Red LED turns off if voltage protection operates 92Vac 5 or less The control voltage safties automatically reset when voltage is corrected 7 High Voltage 147 Vac _ 5 or more Legend Comp compressor DV drain valve FM Fan motor FMR fan motor remote F S float switch HGV hot gas valve HM headmaster C P R LLV liquid line valve PM pump motor SR service relay TXV thermostatic expansion valve WRV water regulating valve WV water valve To preform an output test first move the control switch to the ICE position Press the OUTPUT TEST button The correct LED lighting sequence is none 2 3 4 1 Components e g compressor cycle during the test Following the test the ice maker resumes operation The Dip Switches should be adjusted per the chart in the unit s service manual S4 dip switch 8 must remain off 42 10 1 15 H Board Control Board Lights Alarms and Test At startup a 5 second delay occurs stabilize the circuit The POWER OK LED indicates proper control voltage and remains on unless a control voltage pr
274. mp out remove housing and check clean valve assembly E Normal Harvest Cycle This is the same as Initial Harvest Cycle Return to B and unit cycles through B C amp D until bin control is satisfied or power is switched OFF Note Setting can be adjusted to skip D until every 2 5 of 10 cycles and the unit always restarts at A Legend C Compressor Contactor Coil FM Condenser Fan Motor FS Float Switch Hot Gas Valve LV Line Valve PM Pump Motor RS Remote System WV Inlet Water Valve TXV Thermostatic Expansion Valve o 67 Check Out Procedure for G Boards The G Board check out procedure requires aditional time due to different features in the sequence This sequence check can be used at unit start up or for system diagnosis Using this check out procedure will allow you to diagnose electrical system and component failures in approximately 15 minutes under normal operating conditions of 70 F or warmer air and 50 or warmer water temperatures 15 Minute G Board Check Out Procedure 1 Turn power OFF gain access to unit control box 2 Change S4 Dip switched 5 amp 6 OFF for 1 1 pumpout Note that this is the max cleaning setting Most G board units are set on 1 10 however this will allow a pumpout to occur after the 2nd freeze cycle and every cycle thereafter for checkout purposes After checking reset to factory setting or leave off for maximum flush cle
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276. n the DCM units All DCM models also have periodic agitation in the bin to eliminate ice bridging The DCM 270B model uses a solid state relay to turn the gear motor for 2 seconds every 90 minutes On DCM 500 77508 models the solid state timer board will start the agita tion motor for 0 6 seconds every 12 seconds of accumulated dispensing time A full explanation of the DCM sequence of operation can be found in the unit service manual 284 D 10 1 15 Flaker Timer Board This standard solid state timer board part 437305 01 is used on all F models and the DCM 270BAH model It is a simple electronic sequence timer In order for the board to sequence certain circuits must be closed In order to diagnose a bad timer board it is necessary to check these circuits to assure they are operating properly If you are trouble shooting a timer board the first thing you should check is the incoming control voltage Hoshizaki flakers have 24 volt control transformer The output of this transformer is protected by a 1 amp buss type fuse Control voltage comes in the timer board on pins 1 amp 2 If you do not have 24 volts at pins 1 amp 2 check the transformer and fuse After the reservoir fills check for 24 volts some models may be 120V across pins 8 amp 2 If voltage is present the timer board has cycled up to energize the gear motor circuit which indicates there is not a problem in the timer board If the gear motor does not start
277. nd the gear motor protect circuit is suspect 7 285 D 10 1 15 Water Fill System For Standard Timer Board Operation the reservoir in a Hoshizaki auger type ice maker feeds water by gravity flow into the evaporator cylinder The level of water in the reservoir is maintained by the operation of the dual float switch The dual float switch assembly is made up of two reed switches inside of a sealed shaft The reed switch contacts are oper ated by individual magnets attached inside the top of the two separate floats As ice is made and extruded from the evaporator cylinder the water level in the reservoir drops When the level drops the top float opens the top switch contacts considered a latching circuit Opening these contacts allows the bottom float switch control of the water control relay in the control circuit As the water level continues to drop the bottom float contacts open to de energize the water control relay You will note that the water control relay is now included on the F A control board circuitry however the operation is basically the same De energizing the water control relay closes a circuit to supply 24 volts to the inlet water valve solenoid This allows water to fill the reservoir It also opens a circuit to the timer board ter minals 3 amp 4 internal circuit on the F A board which starts a 90 second low water safety shutdown timer When the water supply is available the reservoir refills A
278. ng Has stainless steel extension bracket been installed on the bin control assembly 33 ICE DROP BATCH WEIGHT 94 10 1 15 Preventative Maintenance Preventative Maintenance is the key to long equipment life and maximum efficiency Hoshizaki recommends preform ing the following maintenance steps annually The PM fre quency will depend on the local water quality and operating conditions Preventative Maintenance Steps 1 Clean the removable air filter Hoshizaki air cooled units include a front accessible and cleanable air filter This filter collects dirt dust and grease It can be cleaned with warm soapy water Hoshizaki recommends cleaning the air filter twice a month or more depending on conditions 2 Service the external water filter system if equipped and check and clean inlet water valve screen 3 Clean and sanitize the water system and bin A cleaning label with detailed instructions is usually located on the inside of the front panel 4 Visually inspect the unit for loose wires oil spots water drips damage etc 5 Clean amp wipe exterior with a soft cloth and neutral cleaner Stainless Steel Cleaning Water quality is constantly changing and local municipali ties are now adding higher levels of chlorine chloramine and sometimes chlorine dioxides to reduce bacteria in the water Stainless steel is a durable metal however it can be suspectable to corrosion due to exposure to chlorine gas
279. nical Support prior to committing to repair or warranty coverage 10 1 15 Remote Lines Hoshizaki has 3 precharged line set lengths available 20 ft 35 ft and 55 ft Line sets are available in different sizes for different models Line Set Identification Code ex R404 35610 R404 Refrigerant 35 Length In Feet 6 Liquid Line Size in 16th s 10 Discharge Line Size in 16th s Flaker Model Line Set Applications F 1001MRH J 21 1 4 OD FD 650 1001MRH J 3 8 OD R404A 20410 FS 1022 1001MLH R404A 35410 R404A 55410 R404A 2068 2 F 1500 1501MRH R404A 3568 2 R404A 5568 2 FS 1500MLH ME E Ob F 2000 2001MRH 1 4 OD 5 8 OD 3 8 OD 1 2 OD If hard piping or fabricating a line set insulate both lines separately and use Quick Connect Kit HS 2150 except on sol der connection models Line sets contain a minimal refrigerant vapor charge of 15 to 30 psig to break the vacuum The fittings used on precharged line sets are one shot couplings They not re seal when disconnected Always evacuate the system before disconnecting the fittings and replace them with new sealed fittings Leaving excess line set coiled on the rooftop or in the ceiling is not recommended It can cause oil traps or be easily crimped and restricted and reflects a poor installation For installations with ex cessive line set length Hoshizaki recommends that you follow the
280. nstructions is usually located on the inside of the front panel 4 Check bearings on Flaker DCM annually for wear Pull the auger and inspect evaporator auger and bearing surfaces for wear Bearing inspections may be needed more frequently in areas with poor water quality 5 Visually inspect the unit for loose wires oil spots scale trails water drips etc 6 Clean amp wipe exterior with a soft cloth and neutral cleaner Stainless Steel Cleaning Water quality is constantly changing and local municipali ties are now adding higher levels of chlorine chloramine and sometimes chlorine dioxides to reduce bacteria in the water Stainless steel is a durable metal however it can be susceptible to corrosion due to exposure to chlorine gas As ice forms chlorine outgases and settles to the lowest point in the bin This gas sticks to wet surfaces and around the door opening of the bin to form hydrochloric acid If this acid remains on the stainless steel rust colored corrosion occurs With enough exposure the corrosion can pit and damage the stainless If rust colored corrosion is found it should be cleaned thoroughly with a non abrasive cleaner and protected with a stainless steel polish Heavy corrosion will require some effort to remove and may require the use of a cleaning agent like Brasso or non abrasive powdered cleaner like Zud or Bon Ami Care should be taken so as not to scratch the stainless during the cleaning pr
281. ntified by a label on the valve housing HIGHER PENN VALVE ADJUSTMENT CONTROLS lower pressure and outlet water temperature with higher water flow higher pressure and outlet water pressure with lower water flow CONDENSER OUTLET WATER TEMPERATURE RANGE High side pressure Ifthe water cooled unit has been in operation for a long period of time adjusting the water regulating valve may not allow proper pressures In this case the water cooled condenser likely contains an exorbitant amount of scale and requires cleaning An acid based condenser cleaner should be circulated using an acid pump in reverse flow through the coil until the inner tube is free of scale Once the scale is removed the water regulating valve should be adjusted to maintain the range and pressure listed above 52 10 1 15 Remote Head Pressure Control All remote condenser units utilize a condensing pressure regulating CPR Headmaster valve to maintain head pressure in low ambient conditions SRK 10H 12H 14H 14J LAC 4 160 URC SF 9F 14F 21F 22F SRC 14H LAC 4 190 SRK 20H 25005 URC 6F 7F 12F 20F SRC 10H LAC 4 210 SRK 7H 13H 24005 5 210 Discharge from compressor Discharge to condenser From condenser outlet The symptoms of a bad headmaster are similar to those of an undercharged unit Many valves are changed unneces sarily due to a low charge To diagnose a bad headmaster Add add
282. number 4A3624 01 can be used as a univer sal replacement on any KM unit Simply seal off the small hole in the outside tube with silicone or a seal cap from 3 8 refrigeration tubing if it is not needed This universal replacement cannot be used on some models KM 61 101 151B uses float switch number 4A3624 04 KM 201 260B uses a unique float switch number P00816 01 KMD 450M uses float switch part number 4A3624 04 DKM 500BAH uses float switch part number 4A3624 03 Dual Float Switch Some newer models use a dual float switch to operate the refill water valve This is necessary because of the size of the reservoir on some designs The switches can be checked with an ohm meter using the black lead as common and check either the red or blue circuit When the float is raised up the switch should be closed This is the same float switch used of F DCM models KM 251 255 Float Switch Part 435490 02 has 2 floats and 2 switches Red upper __ Black common Blue lower Magnet towards top Upper Float blue Spring Retainer Clip Magnet towards top Lower Float white Plastic Retainer Clip 10 1 15 KMS Float Switch Part 468264 01 has 1 float and 2 switches Black Common Blue Lower Switch Red Upper Switch Mechanical Lock Housing Lower Switch Connector Boot The float switch boot will sometimes collect scale deposits since it is in a low area of the water circu
283. oblem occurs The POWER OK LED flashes continously when the bin is full and PM and DV energize for a maximum of 5 minutes to drain the water tank LEDs 4 through 9 energize and sequence from initial startup as listed in the table below Note that the order of LEDs from the outer edge of the board is 5 6 8 9 4 7 A copy of this lable is located on the unit Sequence Step 1 Minute Fill 1 minute Cycle Energized Time LEDs are on Components Harvest Cycle Comp FMR 3 to 5 minutes HGV WV1 o mnes Harvest Comp FMR 50 sec harvest pump Pump Timer PM HGV E onds timer setting Freeze Comp FM Freeze 30 to 35 Cycle ae 9 FMR PM LLV timer set minutes at refill WV2 at refill ting Pump out TA Comp FMR 10 20 pump out 3 2 HGV DV PM Seconds Seconds timer setting The built in safties shut down the unit and have alarms as listed below Type of Alarm High Evaporator Temp Check for harvest problem stuck HGV or relay Temperature gt 127 F hot water entering unit Stuck HM or shorted 1 53 thermistor Harvest Backup Timer Check for open thermistor HGV not opening TXV harvest gt 20 min for or LLV leaking by low charge ineffencient Comp two cycles in a row pr WRV leaking by Freeze Timer Check for F S stuck closed up WV1 or WV2 freeze gt freeze timer leaking by HGV leaking by PM not pumping TXV setting for two cycles not feeding properly LLV not opening low charge in a row HM not bypass
284. ocess mn 306 62 10 1 15 Cleaning Sanitizing Procedure Cleaning and sanitizing an ice maker extends the service life and improves unit efficency Hoshizaki recommends that auger type ice makers be cleaned and sanitized at least twice a year More frequent cleaning and sanitizing may be required in some conditions A maintenance label that details the step by step cleaning sanitizing procedure is located somewhere in the unit It is generally located on the inside front panel or under the top panel These instructions are also provided in the Instruc tion Manual shipped with each unit or can be downloaded at http hoshizakiamerica com support Follow these instructions to conduct a thorough cleaning and sanitizing of the water system Cleaners Hoshizaki recommends Hoshizaki Scale Away or a similar ice machine cleaner however any FDA approved ice ma chine cleaner with a 28 30 phosphoric acid solution is acceptable If you carry a nickel safe cleaner it is important to note that if it contains a citric acid it is not recommended for Hoshizaki products as citric acid can affect tin solder Recommended Cleaning Solution Mixture Cleaner Water _ C 100 101B 1 6 Fl oz All F FD FS DCM Models 9 6 Fl oz 1 6 Gal Note Do not use a stronger solution for F DCM s Chart shows minimum solution amounts for cleaning Remember that scale impedes heattransfer Heavy scale will result in soft wet ice low production and
285. oil for an open winding infinity with an ohm meter Check other components using a good quality multimeter and normal electrical diagnostic procedures Coil resistance will be as follows CKD valves in the 1430 ohm range 1096 Invensys Eaton valves in the 1147 ohm range 1096 Drain Valves in the 4 52 M ohm range 1096 HGV Ooils in the 289 ohm range 10 87 10 1 15 5 The KMS model units designed for use with the Hoshizaki SRK remote condensers The purpose of the KMS system is to remove the noise and heat from the unit head location providing less noise for the customer and a better ambient surrounding the ice maker head The KMS head is a low side system that gets control volt age via a factory supplied wiring harness connected to the SRK unit The SRK is a true remote condensing unit which includes the compressor and is designed for outdoor rooftop installation This condensing unit is specifically for use with the KMS head and cannot be used with a standard KM re mote model Likewise the standard URC condenser cannot be used with a KMS head In general the KMS unit like the KMD was designed for ice on beverage dispenser application A mechanical bin control is used to avoid temperature shut down issues The depth of the KMS ranges from 16 5 to 24 The 24 deep models have a removable reservoir to allow for access to the dis penser bin for cleaning and service
286. or drain drain valve and water circuit piping changes were made from C 0 serial code 313 m 10 1 15 B DCM 270BAH OS CONTROL WATER VALVE FLOAT SWITCH viis WATER RESERVOIR OVERFLOW WATER VALVE DRAIN PAN gt DRIER gt CONDENSER CONDENSER FAN MOTOR ACCESS 1 55 SWITCH VALVE COMPRESSOR WATER CIRCUIT REFRIGERANT CIRCUIT 314 Water Supply C DCM 500BAH BWH OS DCM 750BAH BWH OS Float Switch Water Level Reservoir Overflow Gear Motor Air Cooled Condenser Access Valve Refrigeration Circuit Water Circuit Water Supply In Water Cooled Condenser Water Supply Out Water Regulating Valve 315 o To Drain Drain Valve Dispensing Water Valve High Pressure Switch Access Valve Compressor 10 1 15 Water Supply Inlet Water Valve Reservoir Dispensing Water Valve D DT 400BAH OS JA Transport Hose Drain Pan Water Leve N Float Switch To Drain E Evaporator Expansion Valve Drain Valve Gear Motor To Drain 9 Condenser Fan Motor High Pressure Switch Access Valve Access Valve 4 Compressor 316 10 1 15 F 300BAF
287. or ratings 1 KM 61BAH uses PTC Relay for compressor 2 Pressure switch used on KM 151BAH model only Note KM 201BAH KM 260BAH 3 40TTHL NGEYO 1 9 NR INN anid HAYU agi s hu a E lt gt EO apu mimos EmA ERO 09 6811 oM go A a 99 TES nis y 1 zoj zl E 00 TINS 38 3 1 15 211 KML 250MAH MWH KML 350MAH MWH KML 351MAH MWH KML 450MAH MWH KML 451MAH MWH 2 2 58 555 ooo 65550659005 595 5 7 amp Bo amp 1 1 2 __ 8 e a E 3 8 B olo E EE te 85 4 ra m pees a dm 5 mol _ __ 2 8 ELLA TS Saal TENS 52 52 0 Z 14 4 ze 4 VE Bled th Bley mm of
288. or water leaks from hoses drain valve leaking by or mechanical seal and o ring leaks at the base of the evapo rator barrel ELECTRICAL SYSTEM Ice makers and other refrigeration systems require a sepa rate independent power supply 1 Always check for proper voltage prior to start up or at tempting to diagnose an electrical issue 2 Loose connections will cause voltage drops and high cur rent high heat Check to assure all power supply connec tions are tight to assure proper voltage 3 Always check for loose terminal connections to various components Loose connections could allow voltage read ings but not carry the circuit load Checking the center tap neutral power transformer is unique The transformer provides the 120 volt control cir cuit on 208 230V models on 3 phase and 3 wire application units It is included to eliminate the need for a 4 wire dedi cated neutral circuit The output of this transformer should read 120V from the primary connection marked OV to the white center tap You should always check this control volt age to a white wire and not to the customary case ground If you check from the white wire to case ground you will read approximately half the control voltage 52 66V This can be confusing unless you understand that this is the charac teristic of the center tap transformer application and does not represent a defective center tap transformer Note that EE 309 10 1 15 a reading of 120
289. orS Auxilliary code 3 CorN 8 HorT 4 DorP 9 JorU 5 EorQ 10 KorV Manufacturing year by last number Example A10005F was produced in June of 2011 B20103B was produced in February 2012 C50332M was produced in December 2013 QR Code A QR code has been added to icemakers produced in Peachtree City GA from 2012 with B serial numbers and to future service lit erature You will find the QR code label in the compressor compart ment of the unit Scan the code with your smart phone for instant technical information Ice maker code is model serial specific and opens a warranty registration page with technical manuals Service literature Code will open this Tech Support web page 9 10 1 15 Model Nameplate HOSHIZAKI ICE MAKER MODEL NUMBER KM 650 SERIAL NUMBER AC SUPPLY VOLTAGE 208 230 60 1 3 WIRE W NEUTRAL FOR 11 COMPRESSOR 208 230V 6 0RLA 36 120V 0 5FLA 120V 1 0FLA 115 120V 0 MAXIMUM FUSE SIZE MAX HACR BREAKER USA ONLY MAX CIRC BREAKER CANADA ONLY MINIMUM CIRCUIT AMPACITY DESIGN PRESSURE HI 467PSI LO 230 REFRIGERANT 404A 1 LB 8 MOTOR COMPRESSOR THERMALLY PROTECTED NOT INTENDED FOR OUTDOOR USE Hoshizaki America Inc Peachtree City GA www hoshizaki com US LISTED ICE MAKER WITHOUT STORAGE MEANS ENERGY STAR 946Z COMPONENT See the Nameplate for electrical and refrigeration specifica tions This Nameplate is located on the upper right hand side of rear panel Since this Nameplate is located
290. ortant to understand the following connector information The fittings used on pre charged line sets are one shot couplings They do not re seal when disconnected Always evacuate the system before disconnecting the fittings and replace them with new sealed fittings Moving a Remote In the event that a remote unit must be moved the connec tors can be replaced or you can use this simple method to save time and effort If the existing connectors are leak free 1 Evacuate and recover the refrigerant 2 Cut the line set about 6 away from the connectors at the condenser and head and pinch the ends to seal the system 3 Move the unit to the new location and route new lines between the head and condenser that are properly sized 4 Cut the pinched ends off the condenser and head and resolder the lines together 5 Leak check re insulate lines 6 Evacuate and recharge the unit to nameplate rating This the quickest method and eliminates the need for new connectors Excess Line Set Leaving excess line set coiled on the rooftop or in the ceil ing is not recommended It can cause oil traps or be easily crimped and restricted For installations with excessive line set length Hoshizaki recommends that you follow these steps to cut out the excess line set before making the con nections 1 Recover the line set holding charge through the access schrader valves on the connectors 2 Cut out the excess line 3 Resolder the lines
291. pening TXV or LLV leaking by low charge ineffencient Comp pr WRV leaking by Yellow F TIMER LED on Check for F S stuck closed up WV leakin by HGV leaking by PM not pumping TXV not feeding properly LLV not opening low charge HM not bypassing or inef fenceint Comp Short circuit between the K4 connection on the control board and the bin control Check connec tions and replace wite Open circuit between tl harness is necessary he K4 connectionon the control board and the bin control Check connec tions and replace wire To reset the above safties press the Alarm Reset button with Low Voltage 92Vac 5 or less High Voltage 147 Vac _ 5 or more Red LED turns off if vo harness if necessary the power supply ON tage protection operates The control voltage safties automatically reset when voltage is correc ed Legend Comp compressor DV drain valve KMD KML only FM Fan motor FMR fan motor remote F S float switch HGV_hot gas valve HM headmaster C P R LLV liquid line valve PM pump motor SR service relay KMD KML only TXV thermostatic expansion valve WRV water regulating valve WV water valve To perform an output test first move the control switch to the ICE position Press the OUTPUT TEST button The correct LED lighting sequence is none 2 3 4 1 Components e g compres sor cycle during the test Following the test
292. penser or low usage on bin For MBC or TBC For 2 gt KM 1340 1601M mounted on upright bin For TBC only Dispenser or low usage on bin For T stat only For MBC only Longer HS 0207 for dispenser or low usage on bin For MBC only low usage on bin HS 0239 on KM 1340M application 56 Adjust to 6 below unit Stainless Lowers control 3 to reduce ice cavity 4A4633 01 is Stainless just to 3 below unit Stainless Adjust to 6 below unit Stainless Adjust to 6 below unit Stainless Adjustable down to 10 Hangs on side of bin Stainless 1 HS 0239 Use with TBC or MBC 2 7049 01 10 1 15 Extension Bracket Illustrations 5 5 5062 Standard 6 HS 0246 KM 901 Bracket 7 3 8319 01 Use with 7 57 7 7 10 1 15 When replacing thermostatic bin control Check the operation by holding ice against the thermostatic bulb with the control switch in the wash position The pump should stop within 3 to 10 seconds Adjustment up to 30 45 seconds is acceptable depending on the application Adjust the control CCW for a faster shut down Note Control board dip switch number 7 must be OFF for this control to operate the unit ATBC may be used on KML models 2 Mechanical Bin Control Currently KMD KMS and some M models use a mechanical bin control MBC This control includes a proximity switch and ac tuator pad
293. place as necessary To avoid damage cuased by dirt or grit clean any fingerprints off the seal surfaces and do not use lubricant when reusing or replacing the mechanical seal A second seal is the O Ring that seals the barrel to the housing it leaks you will see a trail of water running from the evaporator and down the outside of the brass housing It is recommended to replace this o ring if the barrel is separated from the housing during service Use a touch of food grade grease or silicone spray to lubricate the o ring and barrel bottom during replacement to prevent roll up There are only three size mechanical seals and o rings currently used other part numbers will sub to these depending on the barrel circumference Mechanical seal and o ring part numbers Barrel Mech Seal O Ring Size Part Part DCM 240 270 300 C 045mm 432491 01 4A4755 01 100 101B F 300 330 450 500 DCM 500 751 F FD FS 070mm 432492 01 4A4755 02 800 801 1000 1001 1022 DCM 750 F FS 095mm 432493 01 4A4755 04 1500 1501 2000 2001 302 10 1 15 Water Solenoids DCM products include three solenoid valves The inlet wa ter valve and the dispense water valve are the same part number The Drain valve is a different valve The inlet water and dispense valves have 80 mesh screens in the inlet to catch trash and debris Screens should be cleaned or replaced during preventative maintenance Replacement screen part number is SA 0019 A washer or
294. r 5 Years 3 Years Air Cooled Cond F DCM 5 Years 3 Years Coil Evaporator Plate KM Cuber 5 Years Evaporator Auger F DCM 3 Years 3 Years Gear Motor Assy Accessory Drain Pump 1 Year Other 90 Days See Warranty Statement supplied with the unit for details Warranty valid in United States Canada Mexico Puerto Rico and U S Virgin Islands Contact factory for warranty in other countries territories or possessions 10 1 15 KM Installation General Specs The ice machine is not intended for outdoor use Operating Conditions ALL MODELS Voltage Range 104 127V Ambient Temp 45 100 F Water Supply F Temp Water Supply All Pressure n general allow 6 clearance at rear sides and fop for proper air circulation and ease of maintenance or service Plumbing Requirements Water Supply On KM units the water supply line size and flow rate is critical due to the water assisted harvest and the use of a ported inlet water valve solenoid Line Size Fitina Size Nominal copper water tubing or equivalent ID Not OD Note that small connection fittings can restrict water flow Water cooled condenser units require two separate sup plies sized as per list above Drain Connections Modei Lino Sze Fengs Bins 3 4 OD 3 4 FPT All KM models 3 4 OD 3 4 FPT ome models have 2 drain outlets Drain lines should never be sized smaller than the factory recommendation
295. r DCM Water Refg Drawing Drawing Reference 312 Performance Data Flaker DCM 1 iiti tnn E 331 DCM 270BAH 332 DCM 300BAH 333 DCM 500B HCOS 2 247 oai a 334 DCM 750B cessisse crceseveesaneerenecses 335 DCM 751B H OS ss 336 ett ecce 337 338 4 5 339 2 ERE 340 5OOBAF C esser eren 341 FD 650M HG 342 OOO MA RR 343 344 F 801M ETA 345 aan eT 346 1001 347 F 1001M iet 348 E 1001M Jorr ederet s 349 F 1001M 350 1001 3C eene nii 351 5 1001 352 5 1022 352 FA500M 353 F 1500M 354 355 eee eS 356 5 1501 0022 357 2000 deti 358 2000 iiis cttm ctn ern teretes 359 F 2001M 360 200 to
296. r Supply Switch _ Reservoir Insulation Water Level Overtiow Thermostatic Valve Expansion Valve S Gear Motor E DX Drain Outlet Gear Motor Drain Pan Condenser Fan Motor T Drier pcdes Condenser High Pressure 5 3 Switch E Compressor 4 Current production shows changes made Water circuit FD 650MAH and FD 1001MAH all production F 1001MAJ all production F 1501MAH From 2 J mE 325 10 1 15 N FD 650MWH C FD 1001MWH C F 1001MWJ C F 1501MWH C F 2000MWH F 2001MWH Inlet Water Valve Spout Evaporator Condensate Water Supply Ej 7 Float Drain Pan Drip Pan Line Switch Reservoir Insulation Thermostatic Expansion Valve Gear Motor Drain Outlet Gear Motor Drain Pan Water Supply Line Condenser 9 High Pressure Switch Compressor Drain Outlet H Water Regulating Valve Current production shows changes made in Water circuit FD 650MWH F 1001MWRH all production F 1001MWH from Serial C 1 F 1501MWH from C 2 J F 2000MWH from C 2 L F 2001MWH all production 0 326 D 10 1 15 FD 650MRH C FD 1001MRH C F 1001MRH C F 1501MRH C F 2000MRH F 2001MRH C Inlet W
297. r sizing air conditioning equipment or water cooled cooling tower applications Cuber Heat Load Chart BTU hr KM 461M H KM 630M H 10 1 15 Cuber Heat Load Chart BTU hr continued Air Cooled 20 300 17 600 19 000 22 600 20 500 i 29 DS 10 1 15 KM 901M H KM 1300M H KM 1300S KM 1300S KM 1300SAH E KM 1301S H 3 KM 1301SAH E KM 1340M H KM 1400SWH M KM 1600S H KM 1600S KM 1601S KM 1601S KM 1800S H KM 1800S KM 1900S KM 1900S KM 2000S KM 2100SWH3 KM 2500SWH3 KM 410M_H KMD 450M_H KMD 460M_H KMD 530M_H KMD 700M_H KMD 850M_H KMD 900M_H KMD 901M_H KMH 2000SWH Cuber Heat Load Chart BTU hr continued Water Cooled KML 250M H 5 000 KML 350M H 5 600 KML 350MWH LO M2 _____ 5 370 KML 351M H 5 500 KML 450M H 6 180 KML 451M H 6 400 KML 600M H 9 850 Condenser Heat Load Chart BTU hr BTUhr Max BTU hr for largest unit see performance data by model application Figures shown are at 90 air temp 70 F water temp conditions Always allow for a pressure differential of 10 psi across the water cooled condenser This means that the inlet pres sure must be at least 10 psi higher than the outlet pressure to allow for proper water flow through the water regulating valve and condenser 10 1 15 Component Technical Data Contro
298. rate improvements in manufacturing durability and efficiency Recognizing and understanding the evaporator designs and differences will aide you in diagnosing and servicing these plates Care should be taken to assure that the prop er part is used in case evaporator replacement is neces sary 1 SD is the initial Small Dimple plate that has been used since the KM production began This is the standard KM design Crescent cubes should form and release separate ly on this evaporator 2 LD The Large Dimple plate used on various KM se ries models is very similar to the SD however the cube separator fins on the plate are shorter and the dimple is larger The larger dimple aides in cube release Also the ice cubes form a small bridge across each row horizontally to help the cubes release during harvest The bridge is not noticeable once the cubes harvest The LD plates produce a standard crescent cube 10 1 15 3 The Tree evaporator has a different shape due to the manufacturing process and design The cubes also bridge across the rows The cube forms a little differently how ever it still maintains a similar crescent shape with a barely noticable taper of the cube These plates are used on the small KM models up to KM 260B and the KMS 1022MLH Model mn 90 10 1 15 Diagnosing Water Problems Many common water related problems will cause cubes to look unnatural Looking at the ice in the bin will point you towards th
299. ration systems provided by Hoshizaki are considered basic filtration with minimal water treatment capabilities There are many possibilities for water treatment In gen eral a filter median is used for sediment dirt and trash Car bon is used for taste and odor and poly phosphate is used for scale control There are also other possibilities such as a water softener or in some cases reverse osmosis RO RO can be aggressive but is acceptable if the RO output has a neutral pH of 7 Contact your local Hoshizaki distributor or a water expert for the best recommendation for your area Note Filtration or treatment must be sized and applied prop Inadequate flowrate will cause prob lems with production and operation of the ice maker 14 10 1 15 Electrical Connections 115 VOLT 1 PHASE Brown 115V 115V 2wire Neutral White wignd N GND 208 230 VOLT 1PHASE 208 230V 1 Phase units require a dedicated neutral due to the use of 115V components Brown The dedi cated neutral 208 230V Neutral requires an 3 wire wignd 115V Sy insulated con ductor which runs directly to the panel If high leg is present connect to black wire A transformer can be used to provide 115V control circuit Beginning Dec 2013 some models include the trans former and are noted as 3 Wire on the carton label They require a 3 wire circuit No dedicated neutral 208 230 VOL
300. rature When 48 F is reached the harvest is turned over to the adjustable control board defrost timer which is factory set for normal conditions This adjustment can vary the defrost timer from 1 to 3 minutes Note This note explains the new positive harvest feature 1 On the board the pump starts 50 seconds before the end of the harvest This is factory set by the S5 dip switches DO NOT ADJUST these dip Switches 2 On H board the pump starts 30 seconds before the end of harvest 3 The H board can be adjusted to allow for pump operation O 10 30 or 50 seconds before the end of harvest This is adjustable with S2 dip switches Dip Switches on S2 should remain at factory settings 10 1 15 3 Freeze Cycle After the harvest timer terminates the harvest cycle the hot gas and water valves close and the ice production cycle starts For the first 5 minutes the controller board will not accept a signal from the float switch This 5 minute minimum freeze acts as a short cycle protection After 5 minutes the float switch assumes control Note In some newer models a refill will occur during the freeze cycle This is controlled by a second float switch and the board settings As ice builds on the evaporator the water level in the reservoir lowers The freeze continues until the float Switch opens and terminates ice production 4 Harvest Pump Out When the float switch opens and signals the completion ofthe freeze cyc
301. re This procedure will help you verify your diagnosis 1 Check the dip switch settings to assure that 73 4 7 8 9 amp 10 are in the factory setting Output test switch S3 should also be OFF Switches 1 2 5 amp 6 are cleaning adjustments and the settings are flexible the control switch to ICE and check for proper control voltage If the Red LED is ON the control volt age is good If the Red LED is OFF check the control transformer circuit See checking control transformer Next check the 115 volt input at 10 pin connector Check the brown wire at pin 10 to a white neutral wire for 115 volts Always choose a white neutral wire to establish a good neutral connection when checking voltages A jumper also feeds 115 volts into pin 7 If no voltage is present check the 115 volt supply circuit 4 Check the board sequence using the S3 output test a Turn the control switch to OFF b Turn the Control switch to ICE Press S3 Watch the lighting sequence of the 4 green LED s numbered 1 4 3 2 from the board edge The Red LED should light in about 5 seconds For E Board About 5 seconds later LED 2 should light 5 seconds later Led 2 will go out and LED 3 will light 5 seconds later Led 3 will go out and LED 4 will light 5 seconds later Led 4 will go out and LED 1 will light 78 10 1 15 5 seconds later Led 1 will go out and LED 4 will light This sequence completes the output test and th
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303. rocedure 2 Remove the metric socketallen head cap screws with seals that secure the extruding head in place 3 Thoroughly drain the water supply system 4 Turn the cutter up side down replace the bolt and use the cutter to lift the auger out of the evaporator 5 With the auger removed remove the cutter and slide the extruding head from the top of the auger Visually inspect the bearing surface at the top and bottom of the auger Also inspect the auger flight and mechanical seal for any damage The extruding head contains the top bearing The bottom bearing is pressed into the brass housing at the bottom of the evaporator 6 To remove the housing Remove the allen screws that secure the evaporator to the housing 7 Loosen the belly band screw and lift the evaporator up and off of the housing Holding the evaporator up re tighten the belly band This will hold the evaporator up so that you can remove the housing 8 Remove the bolts that secure the housing to the gear mo tor assembly and remove the housing The mechanical seal ceramic disk and boot are pressed into the top of the housing Remove these parts before you exchange the bearings Exchange the extruding head and housing for a repressed set at your local distributor To replace the new parts reverse the order above Use a light coat of food grade silicone lubricant around the inside bottom of the evaporator and on the o ring to and help keep it in place as
304. s K9 Connector 5VDC High Pressure Switch Control Switch COMP LED Compressor Control Relay X1 Relay Gear Motor Protect Relay Circuit GM LED X2 Relay GM S2 SERVICE Button Ice Purge Cycle Bypass 29 K8 Connector K1 Connector GM CCR GMPR EH Control Transformer FM FMR 24VAC Input FLUSH LED XS Relay drain DV WTRIN LED X4 Relay Tu Control Transformer 24VAC Neutral fi a Control 2 mechanical 2 Connector 24 Drain Valve 10 W BU Control Inlet Water Valve b 0884 7 6 8 4 NV Switch Common Upper Float Switch Lower Float Switch 10 962vV2 N d 1 00000 Control Transformer 24VAC Input K7 Connector Open POWER OK LED 3 o060000005 0000000000 S1 Dip Switch 7 6 sji 3 2 88688980005 Water Dispensing Valve Agitation 999 60 Motor and Ice BLACK RED WHITE BLACK Dispensing LEDs not used on Connector 20VDC these models Bin Control 1 infrared sensor dark blue white signal common brown ground FD 650 1001M FS 1001 1022 1500M F 1501 2001M
305. s Simply disconnect the terminals to the switch at the board and check it with an ohm meter 3 Infrared Controls The FS FD models use an infrared eye control sensor mounted to the base of the ice chute When the eye senses ice it starts a time delay relay When the timer completes the unit will shut down 10 1 15 This control is used in conjunction with mechanical prox imity switch mounted in the top of the spout The mechani cal control acts as a safety backup for the primary infrared control The spout mounted mechanical control is referenced as bin control 1 The infrared sensor control is referenced as bin control 2 Since it is designed for dispenser applications the control adjust to vary the ice level in the bin The infrared eye control operates on the control transformer power The adjustment is made to a delay timer that delays shut down and allows the unit to fill more or less in the bin Adjusting for a longer delay fills the dispenser to a higher level Bin control 2 is the primary control for unit operation Bin control 1 is the back up spout safety If this control is cycling the unit check the operation of bin control 2 An audible alarm will occur if Z2 control fails on these models See service bulletin SBO9 0004 for operation and diagnosis of this infrared control 1 Thermostatic Control LEDs 2 Mechanical Thumbscrew Control Housing Lens 3 Infrared Sensor Control 27
306. s the reservoir level rises these two switches swap jobs The bottom float is now the latching circuit and the top float re energizes the water control relay When both floats raise the curcuit will stop the safety timer and shut off the water flow to the reservoir If no water is available i e the filter or screen is stopped up or the water supply is turned off the unit cycles down and the water valve remains energized This same action occurs if the inlet water valve fails When the water supply is restored the reservoir fills and the top float switch re energizes the water control relay to automatically restart the unit This system pro vides a consistent water level in the reservoir and evaporator as well as providing an automatic reset low water safety protection Since the float switch is mounted into the water reservoir it is susceptible to scale build up The amount of scale build up will depend on the local water quality Scale on the switch shaft can cause the floats to stick This will effect the unit operation In this case the float switch should be cleaned and checked mn 286 10 1 15 p z 99 7901 10 dojs 1085949109 uoronpoud dojs 0 suedo spes Josse1duio SHES JO OUJ 1295 yams Jo ow 1295 yoyms 04002 5 Y 4 04002
307. s of scoring The auger flights should never contact the cylinder 10 Is there any condensation dripping onto the Gear Mo tor windings If yes find the source and take action to stop the moisture 11 Is the galvanized shield mounted over the motor as sembly to protect from moisture 12 Verify that you have the proper Gear Motor Capacitor 13 Is the Gear Motor Locked 14 Check motor winding resistance 2 Wrong Gear Motor Overload Fuse Check fuse size Has the original overload reset been replaced with the wrong size and type fuse The Flaker requires a slow blow type fuse Re placing it with a standard fuse will cause the fuse to blow again Note Although it is common practice to install a larger fuse mn 298 10 1 15 during service diagnosis you should not leave a larger fuse in the unit when you leave the site This could cause a serious unit failure twist up Note You should never jumper the fuse protector 3 Miswiring Is gear motor wired correctly and wire connections tight Check the wiring diagram for the proper wiring 4 Bin Control Switch Does Not Operate Check the bin control operation A bad or miswired bin control can cause ice to back up in the spout and chute and cause higher gear motor amperage 15 bin control wired correctly and are the wire connections tight Make sure there are no metallic components interfering with the magnetic bin control Verify top panel is non magnetic Assure
308. s within first 5 minutes of freeze cycle 15 Does the unit have any water filtration 1 L Complete When Diagnosing A Freeze Up Refrigerant Leak Or Low Charge If so please list the following 16 17 18 19 20 21 22 23 24 25 26 20 28 29 30 31 32 Filter brand Filter model Filter pressure gauge reading during fill psig Date filter last replaced Is water inlet valve screen clean Does water valve close completely when de energized i e does it leak by in freeze cycle What is inlet water pressure psig What is inlet water temperature F List the control board dip switch settings OFF ON 2 3 4 5 7 8 9 10 Is cube size consistent from inlet to outlet YES of evaporator plates full freeze pattern Is KM cube normal shape and size If not describe Was any refrigerant added to the unit If so how much Was the unit leak checked Were any leaks found If so where Be specific em ai Head pressure Freeze Harvest Suction pressure Freeze Harvest How long is Freeze cycle Harvest cycle Ambient temperature atunit F atcond F Water cooled condenser outlet water temp F Is the hot gas valve opening List model amp manufacturer of bin Or Dispenser If non Hoshizaki bin what modifications have been made to bin control mounti
309. se steps to cut out the excess line set before making the connections 1 Evacuate and recover the line set charge 2 Cut out the excess 3 Resolder the lines 4 Leak check and charge with 15 to 30 PSI vapor charge using the correct refrigerant 5 Make the connections to the condenser and head 262 10 1 15 Flakers DCM S Charge Chart Refrigerant R 404A Always verify total charge with nameplate amount If listed charge is different use nameplate amount Total Charge DCM 270BAH DCM 300BAH DCM 500BAH DCM 500BWH DCM 750BAH DCM 750BWH DCM 751BAH DCM 751BWH DKM 500BAH DKM 500BWH DT 400BAH OS C 101BAF H F 330BAH C F 300BAF C F 450MAH C F 450MAH C F 800MAH C F 800MWH C F 801MAH C F 801MWH C F 1001MAH C F 1001MAH 22C F 1001MLH C F 1001MRH C nmn 263 14 8 oz 15 9 oz 1 Ib 4 1 oz 14 1 oz 1 Ib 7 1 oz 1 Ib 2 7 oz 1 Ib 10 oz 11b 2 Ibs 1 Ib 2 oz 1151 oz 3 17 7 102 9 5 1 Ib 1 Ib 1 Ib 10 oz 13 8 oz 1 Ib 12 oz 11b 1 oz 1 Ib 12 oz 1 Ib 7 oz 3 5 oz 4 Ibs 1 oz 10 1 15 FAO TMWHCC A00 1MAJCC FAO MWACC FA001MRICC 1500 FATSOOMWHCC FASOIMWHCC FASOTMRHCC F2000MLHCC F 2000MWHCC F2000MRH SYC F 2001MLH C F 2001MWHC F 2001MRH S O FD 650MAHCC FD 6SOMWHCC FD 650MRH C FS 1001MLH C w 8 Ibs 6 oz R404A SRC 10H FS 1022MLH C w 8 Ibs 6 oz R404A SRC 10H FS 15
310. stant voltage fluctuation occurs additional external voltage protection will be required 10 1 15 Board Control Board Lights Alarms and Test At startup a 5 second delay occurs while the control board conducts an internal timer check A beep occurs when power is turned off The red LED indicates proper control voltage and remains on unless a control voltage problem occurs The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below Note that the order of LEDs from the outer edge of the board is 1 4 3 2 Energized Components 1 Minute Fill 4 Cycle Harvest Cycle 1 4 2 WV HGV Freeze Cycle HGV SR DV Comp FM FMR PM LLV Comp FMR Comp FMR 5 Freeze timer set minutes 10 Seconds tin 20 Seconds 30 to 35 minutes 9 pump out timer setting The built in safties shut down the unit and have alarms as listed below Type of Alarm High Evaporator Temp Temperature gt 127 1 53 C Harvest Backup Timer harvest gt 20 min for two cycles in a row Freeze Timer freeze gt freeze timer setting for two cycles in a row Short Circuit mechanical Bin control models Open Circuit mechanical Bin control models Check for harvest problem stuck HGV or relay hot water entering unit thermistor Stuck HM or shorted Orange H TIMER LED on Check for open therm istor HGV not o
311. starts in reverse rotation for 10 20 seconds This removes contaminants from the water reservoir through check valve down the drain and allows for power flush of FS Check clear tubing at check valve housing or unit drain for water flow Diagnosis Note Pump out will occur depending on the setting of S4 5 amp 6 E With 5 amp 6 OFF per step 2 it should occur after every harvest cycle from the 2nd harvest If PM does not reverse per this set ting check PM circuit and capacitor If water does not pump out remove check valve housing and check clean valve assembly Normal Harvest Cycle This is the same as Initial Harvest Cycle Return to B and unit cycles through B C amp D until bin control is satisfied or power is switched OFF Note Setting can be adjusted to skip D until every 3 6 of 11 cycles and the unit always restarts at A Legend Compressor Contactor Coil Condenser Fan Motor FS Float Switch HGV Hot Gas Valve LV Line Valve PM Pump Motor RS Remote System WV Inlet Water Valve TXV Thermostatic Expansion Valve 69 10 1 15 Reservoir Flush System Adisplacement device cap or assembly is positioned over the top of the overflow stand pipe This device allows sedi ment to be pulled from the bottom of the reservoir and flush down the drain when overflow occurs Water should always overflow the stand pipe for a short period towards the end o
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313. t the K4 red connector will be 15 8 K ohms and the unit will shut down within 3 seconds during the first 5 minutes of the freeze cycle It will not shut down at any other time in the sequence of operation BIN FULL On Board in full right position supplies 15 8K ohms at red K4 connector to shut unit down On G Board No resistance is used Yellow LED marked Bin Control BC OPEN will light Switch Open bin full Note On E control board dip switch number 7 must be ON for this control to operate the unit Mechanical Bin Control with G Board The G board does not require a resistor wiring harness for MBC operation A wiring harness connector without resis tors is required Part Number 442200605 An open circuit on the red K4 connector will shut the unit down within the first 5 minutes of the freeze cycle A closed circuit on the red connector will start the unit in the 1 minute fill cycle The G board has LED s that indicate the status of the MBC BC OPEN yellow open bin control calling for shut down BC CLOSED green closed bin control calling for ice When the actuator is in the closed position the switch will close the K4 connector and the green LED will light This indicates that the unit should be in the ice making mode Note If unit is converted to TBC for any reason the K4 con nector must be jumped in order to start the unit Use special jumper 4A48
314. t be mounted using a heat sink compound to assure good heat transfer and accurate sensing Use Hoshizaki Part Number 4A0683 01 or equivalent Radio Shack 3276 1372 or GE Electronics 3110 8108 etc Control Board E or G Board The electronic control board maintains the sequence of operation There are 3 input connections to the board 1 The Float switch connects to the control board through the black K5 connector 2 The thermistor connects to the control board through the white K3 connector 3 If a mechanical bin control is used it will connect to the red connector 10 1 15 The control transformer supplies 10 5 control voltage to the K2 connection The control board will not operate unless control voltage is present at K2 Proper control voltage is indicated by the Power OK red LED ON The final connector on the control board is the K1 10 pin connector This connector supplies 115 VAC into the con trol board for switching components or relay contacts and powers the individual components during the sequence of operation The control board also has dip switches that allow for board adjustments These switches are set from the factory for proper operation and maximum efficiency See control board adjustment chart for factory settings and adjustments E or G Board Checkout Before replacing a control board that does not show a vis ible defect and that you suspect is bad always conduct the following checkout procedu
315. t on K5 bin control circuit To reset either safety press the white reset button on the control board with the power ON Checkout To check this control with the unit running you must be in the first 5 minutes of the freeze cycle Turn the control Switch to OFF and back to ICE Allow the unit to cycle through the 1 minute fill cycle and initial harvest cycle When LED 1 is on you will know that the freeze cycle has begun push the control paddle to the full right position and the unit should shut down within 5 seconds on the E board or 15 seconds for the G board Another method to check this control is to unplug the wiring harness from the K5 Red connector For E board units check the resistance atthe end of the harness with an ohm meter as the proximity switch opens and closes 1 When the control paddle is hanging in the normal position Bin Empty the resistance at the red K4 connector will be 7 9 K ohms 2 When the control paddle is held to the full right position Bin Full the resistance at the red K4 connector will be 15 8 K ohms Note Remember that dip switch 7 must be ON and the control will have 4 and 5 beep safeties Mechanical control on G or H board It is important to note that dip switch 7 does not control the red connector on the G or H board It has a different function and should remain in the factory position The G board has LEDs which indicate Bin Control Open Yellow LED and Bin Control Closed Green
316. t trt etes 361 F22Z00 362 Flaker DCM Wiring Diagram Reference Chart 363 NOTES 5 24 395 7 10 1 15 HOSHIZAKI MODEL NUMBER ID Code Designation example KM 1301SAH E KM UNIT TYPE E AM Hat Cuber B Bin BD Bin for 24 depth models DB Dispenser Bin DCM Dispenser Cubelet Maker DKM Dispenser KM Combo DM Counter Top Dispenser DT DCM F C Combo FD Dispenser Model 24 deep FS Flaker C Serenity HCD Bagger Bin KM Crescent Cuber KMD Dispenser model 24 deep KMH High Capacity KM KML Low Profile Crescent Cuber KMS KM Serenity Standard Remote Condenser SRK Serenity KM Condensing Unit 00 PRODUCTION In gt Ir Im Approximate production 24 Hours 70 F Air 50 F Water UNIT STYLE B Self contained with bin M Modular S Stackable CONDENSER STYLE A Air Cooled L Low Side R Remote Air Cooled W Water Cooled GENERATION SERIES Model designation R404A latest model SPECIAL MODEL DESIGNATION 50 50HZ C Cubelet E European 50 HZ OS Opti Serve 10 1 15 Standard serial number is letter 5 digits letter Example D10041A 1 L Month Jan Feb B Apr D May E Jun F Jul G Aug H Sep J Oct K Nov L Dec M Note I is omitted Continous number 1 AorL 6 ForR 2 BorM 7 G
317. that the proximity switch is mounted properly The switch must be secure and mounted level to the chute top Does the bin control paddle move freely and is it unobstructed Gear Motor Stress As you can see there are many factors that can cause a gear motor to fail Every effort should be made to determine the cause for a gear motor failure when the gear motor is replaced When looking for the cause of a gear motor failure you should consider anything that will add stress to the assembly Stress on the gear motor will increase the gear motor amperage and torque The most common causes for stress is scale on the auger surface and evaporator walls Scale insulates the evaporator walls and causes reduced heat transfer As a re sult the ice will be wet and mushy This poor quality ice does not extrude well and tends to pack in the evaporator outlet and extruding head increasing gear motor stress Heavy scale build up must be removed using an acid based cleaner which will loosen the scale Follow the cleaning instructions provided on the cleaning label to preform a maintenance cleaning If the unit has not been cleaned and maintained frequently it may require you to pull the auger and clean the cylinder wall with a Scotch Brite pad amp cleaner The extruding head surfaces may also have heavy scale and can be cleaned with Scotch Brite amp cleaner as well bolts on the gear motor housing and extruding head can also cause stress
318. tment 33 Board Dip Switch Settings 35 Positive Harvest Feature 38 H Board Dip Switch Settings 38 E Control Board 39 Manual Reset Safeties 40 E Control Board Label s 41 Control Board Label 42 H Control Board 43 H Board Dip Switch 44 Compressor Data 45 Water Cooled Head Pressure Controls 52 Remote Head Pressure Controls 53 High Pressure Safety Switch 54 Pressure Switch 54 Bin Control 54 Bin Control Extensions 56 Mechanical creissira 58 2 10 1 15 KM Cuber Sequence of 60 Basic KM Sequence Flow Chart 62 KM 251 255 BAH BWH Sequence Flow 63 KM 61 260B 8 KMD Sequence Flow Chart 64 KMS 750 1401MLH Sequence Flow 65 KM 10 Minute Check
319. tton to skip the 5 minute ice purge cycle Remember the gear motor will turn for a period before the compressor starts 5 When the compressor starts watch the frost pattern inside mn 311 10 1 15 the evaporator barrel You should see a consistent growth of frost from bottom to top Note that on the smaller barrel the frost may start at the top even though it feeds from the bottom because the small barrel floods initially Consistancy in the frost pattern is the key If you see gaps or spaces with no frost separation is likely In the case of no frost the TXV low charge or inefficient compressor is more likely Repeat this process a couple of times to assure proper diagnosis Flaker DCM Water Refrigeration Circuit Drawing Reference List Refrigeration and water circuits are helpful to trouble shoot and diagnose issues with water and refrigerant flow Many models have similar layouts and some drawings have been combined to represent more than one model MODEL DRAWING PAGE E Mg 313 27 314 DCM 500BAH BWH OS DCM 780BAH BWEH 315 400 05 Dus 316 3 2 817 FeO QO BAP 318 F 450MAH F 800MAH MWH F 801MAH MWH F 1001MAH MWH FD 1001MAH MWH F 1500MAH MWH G 319 F 1001MRH FD 1001MRH C Plisan 320 F 1001MLPFI C
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321. unted in the ice drop zone area or on a drop down bracket which extends into the bin cav ity The thermostatic control opens on temperature drop and closes on temperature rise When ice touches the thermostatic bulb the bulb pressure opens the bin control contacts to shut the unit down The unit will not operate in the ICE position unless the thermostatic bin control switch is closed The thermostatic bin control will shut the unit down at any point if ice contacts the control bulb Shut down time depends on the control adjustment This adjustment is factory set how ever it should always be checked at start up or replacement to assure proper operation The factory setting is to shut off within 3 10 seconds after ice contacts the bulb NOTE TBC in high altitude areas requires adjustment 2 Mechanical Bin Control Flaker DCM units use a mechanical bin control On some Flaker models this control is a secondary or backup A paddle pivots on a hinge pin to operate either a micro switch or mag netic proximity switch The DCM 270B model uses either mag netic switch or a lift pin and micro switch Ice pushes against the paddle to move it away or to lift the switch mechanism For proper operation make sure that the paddle swings freely Check this control for an open circuit when the paddle is held away from the magnetic proximity switch or lifts the micro switch The best location to check this control is at the control board connection
322. use provides more consis tent protection in low voltage applications and the correct fuse type and amperage must be used time delay or slow blow not fast acting Gear Motor Protection C 100 101B F 330B Current type protector F 300BAF 5 1 gt F 500BAF gt 0 DCM 270 300 750B F 300BAF gt 5 0 F 800M H 1 5 amp fuse F 801 1001M H C 3 amp fuse FS 1001 1022M FD 1001MAH C DCM 751B F 1500 2000 2001M 7 amp fuse 10 A circuit protector Gear motor failure can be expensive and it is very important to find the cause of the failure when it is replaced There are sev eral possibilities for the cause of gear motor failure see Gear Motor Checkout section of this handbook or the unit service manual 10 1 15 Internal Auger Design Hoshizaki Flakers and DCM s use an internal auger system to provide high quality crisp flakes and cubelet ice The evaporator cylinder and auger are made of anti magnetic stainless steel This higher quality stainless steel does not attract corrosive minerals eliminating pitting caused by harmful minerals in the water This maintains a smooth surface to reduce restriction to ice flow providing consistent ice production and quality The picture below is a generic representation of the F DCM evaporator assembly The extruding head 9 and cutter 10 can be exchanged so that this Flaker assembly will produce Cubelet style chunklet ice like the DCM application The sleeve type alignment
323. ve is not feeding properly both should be changed out This is to assure there is no damage or weakness in the other valve so that the evaporator will have a consistent refrigerant flow after the repair Bulbs should be remounted properly and securely in the same location EVAPORATOR FROST TEST Note We recommend conducting this test prior to changing out a suspected weak compressor as the symptoms are the same It could mean the difference in changing out a non defective compressor and finding the same symptoms If you suspect a problem with the evaporator a quick frost test can be done to aid in diagnosing the problem The symptoms would potentially be icing on the outside of the evaporator insulation or unexplained low production The pressures read close to normal and the TXV is feeding but production is lower than the customary 10 allowance maybe around 20 50 There is a rare potential for an evaporator restriction or separation or the tubing from the evaporator barrel especially on an older evaporator For the frost test you need to examine the frost pattern in the barrel To do this 1 Turn the water off to the unit and drain the reservoir 2 Pull the extruding head and auger 3 Remove the float switch and turn it upside down to assure both switches are closed This will allow the unit to start up with no water in the system 4 Turn the unit to ICE and allow it to cycle up On the F A board press the service bu
324. would likely overheat short or fail in this case In the event of an accidental short or a burnt trace on a control board connection you should check the component that connects to the pin on the back side of the board as the first step The fuse is a Bussman AGC 10 Amp 250VAC fast acting fuse Hoshizaki part 4A0893 07 and should only be re placed with one of identical size and type A replacement fuse is taped to the control box Should you want to add this feature to an existing KM unit in the field you can order fuse holder 4 0892 01 fuse label 4A2817 01 and fuse 440893 07 through your lo cal distributor You should also make a note on the wiring diagram indicating the fuse addition fuse size and type On the following page you will find a typical wiring diagram showing where the fuse is wired in the circuit and the label that is included on the control box 72 10 1 15 LO LL82VP 10 400 SMO q 9Snj VOL 3813 108 02 9514 1 01 U09 Jo 5 e 1 lt H IN uo pasn si y o 0 8 Lm ai l e 01 1 ugu 5 y td TM Nig 10 1 15 79 Component Checks Float Switch Check out the float switch with an ohm
325. y a relay so that sediment is pumped out KM 61 101 151 Drain Cycle These small KM s empty the reservoir during the pump out period by gravity This is called the drain cycle on these units The pump stops for 10 seconds and the drain valve opens to drain mineral laden water out 70 mn 10 1 15 KM Control Switch The standard KM unit has a single control switch as shown below ICE lt OFF gt WASH This is a double pole double throw 3 position switch 1 Placing the switch in ICE will start the ice making process by closing switch contacts to terminals 1 amp 2 and 4 amp 5 2 Placing the switch to OFF open s these contacts 3 Placing the switch in WASH will start the pump by closing switch contacts to terminals 5 amp 6 2 amp 3 will also close KML KMD KMS Control Switches KML KMD KMS models have dual control switches ICE WASH CONTROL SWITCH CIRCULATE Jo SWITCH SERVICE DRAIN The Service Switch in not in the circuit until the Control Switch is placed in the SERVICE position The Control Switch is a double pole double throw 3 posi tion switch 1 Placing the switch in ICE will start the ice making process by closing switch contacts 2 amp 3 and 5 amp 6 2 Placing the switch to OFF open s these contacts 3 Placing the switch in SERVICE will close contacts 1 amp 2 and energize the Service Switch and close con tacts 4 amp 5 to energize the pump The Service Switch is a sing
326. you need to field fabricate your line set or shorten lengthen a precharged line set you can do so by following these steps 1 Using the correct connector kit braze the line set connection If you shorten or lengthen a pre charged line set recover the holding charge cut lengthen and braze the connections 2 Pressurize the lines and leak check all braze joints 3 Evacuate the lines through the service ports on the quick connect fittings 4 Charge both lines with 15 to 30 psig R 404A vapor To make quick connect connections 1 Lubricate threads and O rings with clean refrigerant oil Male Fitting DO NOT USE THREAD SEALANT Brush Threads Apply POE Oil to Diaphragm POLYOL Entire Male Fitting q ESTER 9 POE OIL O Ring 2 Align the male and female couplings straight 3 Tighten the female connector until it bottoms out Note Always use a back up wrench when tightening these fittings 4 Once secure mark a reference line and turn the fittings an additional 1 6 turn to assure a good brass seal Li Wrench Line 22 p P e SS AfterTight Tighten an e VR f C Additional 1 6 Turn gt roS Bacup L Wrench 5 Leak check the joints with soap bubbles or elec tronic leak detector 7 20 10 1 15 Connectors If remote unit needs to be moved or disconnected for service itis imp

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