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Hoshizaki KM-1301SAH-E User's Manual

Contents

1. 24 i Refill Counter 55 dip switch 2 through 5 wis siccoctccceccssavesssanasananentsavedawstaccedacenes 24 o 24 Technical Information mmm mmm rmn mIm rnm treten rii 25 Water Circuit and Refrigeration 25 1 13015 2 6 toc rada ud uentum 25 2 KM 1301SWH E Wator COOlBUl icu 26 3 KM 1301SRH E remote air cooled 27 28 TAuliary T O aE dua dua 28 a KM 1301SAH E 0160 28 2 Code WT and Later gem DE 29 KM 1301SAH E air cooled 29 b KM 1301SWH E water cooled 30 c KM 1301SRH E remote 31 C Peiormance asse eoi atate 32
2. TOP VIEW 935 36 13 16 850 33 15 32 700 AIR FLOW 27 9 16 AIR FLOW e 8 0 ND 10 QS BF RO or Oly 94 Mt Ve 8 OLI o zio Es 960 N 37 13 16 FRONT VIEW 907 2 35 11 16 AHN N REN _ WO AK ae WA A dU b if 7 DANLA j amp Ee ORE M Or LA 4 LUN LAE SKI ee euo eV 5 75 309 2 15 16 12 3 16 i 7 8 DIA OPENING SPECIFICATIONS MODEL URC 14FE AC SUPPLY VOLTAGE FAN MOTOR EXTERIOR DIMENSIONS WxDxH DIMENSIONS INCLUDING LEGS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC REFRIGERANT CONDENSER FAN MOTOR PROTECTION REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE OPERATING CONDITIONS ACCESSORIES SUPPLIED 115 50 1 Connection to Icemaker 115V Total 2 6FLA 130W 35 11 16 x15 11 16 x21 15 16 907 2x398x557 8 mm 37 13 16 x18 1 8 x36 15 16 960x460x937 8 mm Galvanized Steel Net 80 36 kg Shipping 87 Ib 39 kg Permanent Connection Discharge Line 1 1 16 12 UNF Fitting 10 PARKER Liquid Line 5 8 18 UNF Fitting 6 PARKER Air Cooled Fin and Tube Type Thermal Protection Headmaster C P R 190 PSIG R 404A 416 6 5 2 2000 g High 467 PSIG 32 2 Bar VOLTAGE RANGE 104 127V
3. 65 51 1 Refrigerant gt 51 52 Evacuation and 4 52 Important Notes for Component 54 t T 55 A Cleaning and Sanitizing Instructions pna es 55 C 55 2 Sanitizing Procedure Following Cleaning Procedure 57 B quu ausa pad 58 C Preparing the Icemaker for Long Storage 58 Important Safety Information Throughout this manual notices appear to bring your attention to situations which could result in death serious injury or damage to the unit WARNING Indicates a hazardous situation which could result in death or serious injury CAUTION Indicates a situation which could result in damage to the unit IMPORTANT Indicates important information about the use and care of the unit WARNING This icemaker should be destined only to the use for which it has been expressly conceived Any other use should be considered impr
4. A g b l WWI E 1 25 d ue up 3002 80102 m Fo OPN p S E I 08 ag MEZ DB Tm AMP 8 8 9 QD spo NV LS i 80 LINT 33918040 0 A A i ngl ug 9 to E J E EA a owe 505 LIND 33441 01 i I EN fo D es WEY 81 88 ni totty a 3 di 18 15 5055280 4 i c 0 7 AVIS IIS E 10 YOLSIMUSH d 00 s s 13 mm Im MIN ND gt 31 Performance Data 1 KM 1301SAH E air cooled APPROXIMATE ICE AMBIENT TEMP PRODUCTION PER 24 HR 70 21 80 27 90 32 Ibs day kg day 100 38 APPROXIMATE ELECTRIC 70 21 CONSUMPTION 80 27 90 32 watts 100 38 APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32 gal day m day 100 38 FREEZING CYCLE TIME 70 21 80 27 90 32 min 100 38 HARVEST CYCLE TIME 70 21 80 27 90 32 min 100 38 HEAD PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 19 000 BTU h 90 F 32 WT 70 F 21 Note 1 Pressure data is recorded at 5 minutes into freezing cycle The data not in bo
5. 32 2 KM 1301SWH E water cooled 33 3 KM 1301SRH E remote air cooled vinciuucseoctuortecwdedesesennencbeientebanduoasanatantuanaeenebents 34 IV Service 35 A Diagnostic Proced re M AM 35 B A 39 G Bih Control GRECK 40 1 Thermostatic Bin Control Check 13015 40 2 Mechanical Bin Control Check and Cleaning KM 1301SWH E KM 1301SRH E 40 a Mechanical Bin Control 40 b Mechanical Bin Control eae noie cies 42 Check etc 43 UM Float Switeh Sig NN 43 Cleaning 44 E Thermistor aS 45 F Adjustment of Water Regulating Valve water cooled model 45 G Diagnostie NE 46 1 7 nemo 46 2 Freeze P 48 3 Lowe ov TETTE 50 V Replacement of Components 51 A Service for
6. NMOSd M8 MOV 18 8 1002 80102 MEZ 80 fue am oec d vm neus um X Hu a0 INIS 80553804402 919 9 ng USHUOASNVYL NIW 1 1 3513 Jaye pue T eu be EE ng1 jme S f VINO O A pue opo ng ud 28 ug OND 20018 ANS N 105 072 022 ND 29 b KM 1301SWH E water cooled 915 Lc v86 ul n9 MOTIJA AV TaY 104140 ET AV 34 NOLLJ3SI 0 NON A CAV SY YAWIL 154 YOUMS ainsseld UBIH Nd d FONYYO 0 amg 491 197 AVY9 A9 MOTT3A N2385 A D 3118 2 gg NB TEIND M
7. 7 SWA senuluod dwog 979941 10 uedo S 4 uedo 5 4 15 891 10 VJ 66 0 6 4 87 19 194 7 ASH pezi amp ueue peziBieue dwog senunuoo AM uedo 5 4 pezi amp ieue AM peziBueue ep AM 499849 6 4 7 Wd Aejap 0 5 Jaye 4 dnyes 6 4 0es 06400 3 29 1 dip 4 041009 UI UILU E O JojsiuJeu 02 3 e 5 YAMS dip 75 98S 02 01 10 8 oes Z 6 4 Ut UILU G gt 10 1045 e 9 lt 01 3 6 dip 5 sty uo 7 dip YS 15 LON dip ps I euun e OG si YAMS dip YS 295 OS 10 19 e 9 1 979944 e JO 0 1seAJeu Jo Jo uiu 9 eu AM e 77 215 1no duung 9J9 2 ezoa 2 2 1soAJeH einuiy L 1 sdeis 91242 3 HHSIOEL INM 3 HMSLOEL INM 3 HVS 02 L INXM eouenb
8. C P R remote a Defective condenser unit 12 Water Regulating Valve 8 Out of adjustment water cooled model See IV F Adjustment of Water Regulating Valve 49 3 Low Ice Production 1 Evaporator 2 Spray Tubes and or Spray Guides 8 Refrigerant Charge 4 Water Supply C Insufficient water line size Minimum 3 8 nominal ID 10 mm nominal OD d Too cold 5 Control Board a Thermistor connection loose K3 See IV B Control Board Check b Defective 6 Thermistor 8 Loose disconnected or defective See IV E Thermistor Check 7 Hot Gas Valve niet Water Vale 9 Compressor 10 Liquid Line Valve f applicable 1t Expansion Valve 12 Water Regulating Valve Leaking by water cooled model 1 Evaporator 2 Refrigerant Charge 3 Fiter air cooled model 4 Condenser air cooled and a Clogged remote air cooled models 5 Condenser water cooled model a Water temperature out of specification 6 Control Board a Float switch connection loose 5 See IV B Control Board Check p Defective 7 Hot Gas Valve 8 Inlet Water Valve 8 Leaking by 9 Float Switch Float does not move freely or defective switch See IV D Float Switch Check and Cleaning 13 Expansion Valve 14 Headmaster C P R remote Not bypassing condenser unit 15 Water Regulating Valve 8 Out of adjustment water cooled model See IV F Adjustment of Water Regulat
9. Harvest mc 14 C Freeze Cycle meen ane er ee eee eee ee ee ee eee oe 15 d EE 15 Diu 15 15 2 Sequence Flow m T TM 17 C Control 18 Board Eo 19 a LED Lights and Audible Alarm Safeties 2 2 22 20 2 Controls and AOJUSITIBIlS uacua ined 21 Default Dip Switch tina DD QUU 21 b Harvest Timer S4 dip switch 1 amp 2 21 Pump Out Timer S4 dip switch 3 amp W Lisandro PR Ta REP 22 d Pump Out Frequency Control 54 dip switch 5 amp 6 22 e Harvest Pump Timer 54 dip switch 7 14 23 f Factory Use S4 dip switch B 23 g Freeze Timer S4 dip switch 9 amp 10 2 2 rtm esten ed the pu Ra xo eque nap nna 23 h Float Switch Control S5 dip switch 1
10. The pump out timer also acts in place of the harvest timer during cycles with a pump out The pump out timer is factory set and generally no adjustment is required The pump out timer control can be set to pump out for 10 or 20 seconds s Inlet S4 Dip Switch Settin 9 Water OFF 150 180 OFF 120 open 180 T1 Time to drain the water tank T2 Harvest timer at pump out d Pump Out Frequency Control S4 dip switch 5 amp 6 The pump out frequency control is factory set to drain the water tank every 10 cycles and generally no adjustment is required However where water quality is bad and the icemaker needs a pump out more often the pump out frequency can be adjusted The pump out frequency control can be set to have a pump out occur every cycle or every 2 or 10 cycles Timing of the first pump out is dependent on S4 dip switch 5 amp 6 settings The first pump out is factory set to occur after the 11th freeze cycle See the table below S4 RUN EN Setting Pump Out Frequency ZMEJ Every cycle After 2nd freeze cycle Every 2 cycles After 3rd freeze cycle Every 5 cycles After 6th freeze cycle Every 10 cycles After 11th freeze cycle 22 e Harvest Pump Timer 54 dip switch 7 CAUTION Factory set for proper operation Do not adjust Adjustment outside of the factory default setting may result in damage to the icemaker Depending on the harvest pump timer setting the pump motor energizes and r
11. and thumbscrews are securely in place after the unit is serviced Make sure that none have fallen into the storage bin 1 2 3 4 Turn off the power supply Remove the front panel then move the control switch to the OFF position Clear any ice away from the mechanical bin control Disconnect the bin control cable connector then remove the mechanical bin control assembly from the unit 5 Remove the actuator paddle from the switch mount See Fig 2 6 Wipe down the mechanical bin control assembly with a mixture of 1 part Hoshizaki Scale Away and 25 parts warm water Rinse the parts thoroughly with clean water 7 Reassemble the mechanical bin control assembly and replace it in its correct position Note If the magnet was removed for cleaning be sure to replace it in its correct position 8 Reconnect the bin control cable connector 9 Move the control switch to the ICE position 10 Replace the front panel in its correct position 11 Turn on the power supply to start the automatic icemaking process Bin Control Cable Connector 2 Bin Control Bracket Fig 2 Actuator Paddle Switch Mount D Float Switch Check and Cleaning The float switch is used to determine that there is sufficient water in the tank after the 1 minute fill cycle and after each harvest cycle The float switch is also used to determine that the appropriate volume of water has been converted into ice before switc
12. as a mixture with pressurized air for leak testing 1 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG Note Because the pipes in the evaporator case are specially coated to resist corrosion itis important to make connections outside the evaporator case when possible If itis necessary to braze inside the evaporator case use sandpaper to remove the coating from the brazing connections before unbrazing the components CAUTION 1 Always install a new drier every time the sealed refrigeration system is opened 2 Do not replace the drier until after all other repair or replacement has been made Install the new drier with the arrow on the drier in the direction of the refrigerant flow 3 When brazing protect the drier by using a wet cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 2 Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG DO NOT use 404 as a mixture with pressurized air for leak testing 3 Evacuation and Recharge R 404A 1 Attach a vacuum pump to the system Be sure to connect the charging hoses to both high and low side service valves IMPORTANT The vacuum level and vacuum pump may be the same as those for current refrigerants However the rubber hose and gauge manifold
13. gal day m day 100 38 FREEZING CYCLE TIME 70 21 80 27 90 32 min 100 38 HARVEST CYCLE TIME 70 21 80 27 90 32 min 100 38 HEAD PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 18 982 BTU h AT 90 F 32 WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 600 BTU h AT 90 F 32 WT 70 F 21 _ CONDENSER VOLUME gt 133 44 Note 1 Pressure data is recorded at 5 minutes into freezing cycle The data not in bold should be used for reference only 2 We reserve the right to make changes in specifications and design without prior notice 34 IV Service Diagnosis WARNING 1 This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire 2 Risk of electric shock Use extreme caution and exercise safe electrical practices Moving parts e g fan blade can crush and cut Keep hands clear CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after the unit is serviced Make sure that none have fallen into the storage bin Make sure all food zones in the icemaker and storage bin are clean after the unit is serviced For cleaning procedures see Cleaning and Maintenance A Diagnostic Procedure The diagnostic procedure is basically a sequenc
14. minus 0 or 50 seconds harvest pump timer S4 dip switch 7 whichever is shorter CAUTION Do not adjust S4 dip switch 7 out of the factory default position on this model Adjustment outside of the factory default position may result in damage to the icemaker For details see Il C 2 e Harvest Pump Timer S4 dip switch 7 LED 4 goes off when WV and X2 relay auxiliary code 0 U 0 X11 relay auxiliary code U 1 and later de energize LED 3 comes on and PM energizes and runs for the last O or 50 seconds of harvest depending on S4 dip switch 7 setting This circulates water over the evaporator for the last 0 or 50 seconds of harvest PM is energized through the 5 pin DBu wire on the CB K1 ten pin connector and the X1 relay auxiliary code 0 X10 relay auxiliary code U 1 and later When the harvest timer terminates the harvest cycle is complete CB checks the position of F S and proceeds to the freeze cycle if it is closed or calls for a 1 minute fill cycle if it is open The minimum total time allowed by CB for a complete harvest cycle is 2 minutes LED 1 is on Comp and remain energized energizes or remains energized depending on harvest pump timer S4 dip switch 7 setting FM and LLV energize HGV and X1 relay auxiliary code 0 0 0 X10 relay auxiliary code U 1 and later de energize For the first 5 minutes CB will not accept a signal from F S This minimum 5 freeze t
15. oils used in R 404A units can absorb moisture quickly Therefore it is important to prevent moisture from entering the system when replacing or servicing parts Always install a new drier every time the sealed refrigeration system is opened Do not replace the drier until after all other repair or replacement has been made Install the new drier with the arrow on the drier in the direction of the refrigerant flow When brazing protect the drier by using a wet cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 1 Refrigerant Recovery The icemaker is provided with refrigerant service valves Using proper refrigerant practices recover the refrigerant from the service valves and store it in an approved container Do not discharge the refrigerant into the atmosphere 51 2 Brazing WARNING 1 404 itself is not flammable at atmospheric pressure and temperatures up to 176 F 80 2 404 itself is not explosive or poisonous However when exposed to high temperatures open flames R 404A can be decomposed to form hydrofluoric acid and carbonyl fluoride both of which are hazardous 3 Do not use silver alloy or copper alloy containing arsenic 4 Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG DO NOT use R 404A
16. 1 Turn off the power supply then remove the front panel Move the control switch to the OFF position 2 Remove the insulation panel Remove the drain plug located on the lower front part of the ice chute See Fig 5 Allow the water tank to drain 3 Replace the drain plug and the insulation panel in their correct positions Be careful not to cross thread the drain plug 4 Remove all ice from the storage bin Clean the storage bin using a neutral cleaner Rinse thoroughly after cleaning 5 Replace the front panel in its correct position 3 On water cooled model remove the water from the water cooled condenser 1 Make sure the power supply is off then remove the front panel and right side panel 2 Close the condenser water supply line shut off valve If connected to a closed loop system also close the condenser return line shut off valve 3 Open the condenser water supply line drain valve If connected to a closed loop system also open the condenser return line drain valve 4 Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve 5 Open the water regulating valve by using a screwdriver to pry up on the spring retainer underneath the spring While holding the valve open blow out the condenser using the compressed air or carbon dioxide supply until water stops coming out 6 Close the drain valve s 59
17. 115V at the control board K1 ten pin connector Check the 10 pin BR wire to a white neutral wire for 115V Always choose a white neutral wire to establish a good neutral connection when checking voltages For additional checks see IV G 1 Ice Production 3 The OUTPUT TEST button provides a relay sequence test Make sure the control switch is in the ICE position then press the OUTPUT TEST button The correct lighting sequence is 1 4 3 2 Note that the order of the LEDs from the outer edge of the control board is 1 4 3 2 Components e g compressor will cycle during the test Following the test the icemaker resumes operation If the LEDs do not light as described above the control board is bad and should be replaced 4 To verify voltage output from the control board to the components slide the control board K1 ten pin connector out far enough to allow multimeter lead contact With the unit in the cycle to be tested check output voltage from the corresponding pin on the control board K1 ten pin connector to ground If output voltage is not found and the appropriate LED is on the control board is bad and should be replaced 39 C Control Check 1 Thermostatic Bin Control Check KM 1301SAH E To check the thermostatic bin control follow the steps below CAUTION When the ambient temperature is below 45 F 7 C the thermostatic bin control switch opens and shuts down the icemaker even if the ice storage bin
18. 5 Foam Insulation A Cable Tie 54 VI Cleaning and Maintenance This icemaker must be cleaned and maintained in accordance with the documentation and labels provided with the icemaker Consult with your local distributor about cleaning and maintenance service To obtain the name and phone number of your local distributor contact your nearest Hoshizaki Service office listed in the Instruction Manual and at www hoshizaki com WARNING 1 Except as specified below only qualified service technicians should attempt to service this icemaker 2 CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after any cleaning or maintenance is done to the unit Make sure that none have fallen into the storage bin 3 This appliance must not be cleaned by use of a water jet 4 To prevent possible damage do not clean the plastic parts with water above 104 F 40 or in a dishwasher 5 The storage bin is for ice use only Do not store anything else in the storage bin A Cleaning and Sanitizing Instructions Performed by Qualified Service Technician Hoshizaki recommends cleaning and sanitizing this unit at least once a year More frequent cleaning and sanitizing however may be required in some existing water conditions WARNING 1 To prevent injury to individuals and damage to the icemaker do not use ammonia type cleaners 2 Carefully follow any instructions provided wi
19. AMBIENT TEMP 20 122 Leg 2 pcs Hex Head Bolt w Washer 8x16 8 pcs Hex Nut 8 8 pcs Note We reserve the right to make changes in specifications and design without prior notice 10 General Information A Construction 1 KM 1301SAH E air cooled Separators Spray Tubes Low Side Service Valve Inlet Water Valve N High Side Service Valve Evaporator Assemb po T N Eg 4 Water Supply Inlet lt gE Junction Box Hot Gas Valve Check Valves High Pressure Switch Cube Guides Air Cooled Condenser Check Valve Control Box water Fan Blade Water Pump lt a Fan Motor Float Switch Compressor Drier Liquid Line Valve Control Switch Transformer Box Thermostatic Bin Control 11 2 KM 1301SWH E water cooled Separators Spray Tubes Low Side Service Valve Inlet Water Valve Evaporator Assembly N High Side Service Valve Expansion Valves Water Supply Inlet Junction Box e 2254 Hot Gas Valve Check Valves High Pressure Switch iif Water Cooled Condenser Check Valve water Water Pump p Float Switch Water Regulating Va
20. NMON8 489 DV 19 9 3003 80102 HR MEZ 4a Aus INIS 0 q dWO 5 Ni 9 2LL3NDVH NI ng ud 08 08 1041802 J a KM 1301SAH E air cooled 801541 0 0 0 1 ng ug H3 OND 9 2018 N Mm 4105 017 07 28 2 Auxiliary Code 0 1 and Later a KM 1301SAH E air cooled 83 1041802 3 AS OL ndino 9 1 AVIS 1081402 OLX 134 1123810 dWNd OLX SAV TSU 1 did 153A8Y 12 26 O1Sd 0 21 U91IMS ainssalg Yy a MOTHA A M 13101A A du d 39 30 0 3078 1 9 87 9 AD 9 49 3778 uvo ngo fam fam I gt gt lt gt SS3ud IH NS 108180 4 to oi nga 5 100 n 8 1 8 M
21. Overflow Pipe COOLING WATER CONTROL N A BIN CONTROL SYSTEM Thermostat COMPRESSOR Hermetic Model CS14K6E PF J 237 CONDENSER Air Cooled Fin and Tube Type EVAPORATOR Vertical Type Stainless Steel and Copper REFRIGERANT CONTROL Thermostatic Expansion Valve REFRIGERANT CHARGE R404A 3 Ib 9 1 oz 1620 DESIGN PRESSURE High 467 PSIG Low 230 PSIG P C BOARD CIRCUIT PROTECTION High Voltage Cut Out Internal COMPRESSOR PROTECTION Auto Reset Overload Protector Internal REFRIGERANT CIRCUIT PROTECTION Auto Reset High Pressure Control Switch LOW WATER PROTECTION Float Switch ACCESSORIES SUPPLIED N A REQUIRED Ice Storage Bin OPERATING CONDITIONS VOLTAGE RANGE 198 254V AMBIENT TEMP 45 100 WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG Note We reserve the right to make changes in specifications and design without prior notice 2 KM 1301SWH E water cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION Ambient PER 24 HR Temp F 70 90 Ib day kg day 70 Reference without marks 80 220 240 50 1 10 7 A 5 Min Freeze 109 F WT 59 20A 20A 1310 594 1269 576 1189 539 90 1304 591 1240 562 1165 528 100 1281 581 1222 554 1096 497 FOR THE EUROPEAN MARKET 10 10 20 15 30 25 ICE CAPACITY Ib day kg day 1368 621 SHAPE OF ICE Crescent Cube ICE PRODUCTION PER CYCLE 31 Ib 14 kg 1440 pc
22. S During the first 5 minutes of freeze confirm that the evaporator temperature drops After 5 minutes in freeze disconnect black F S connector from CB BLACK K5 connector After a 15 second delay the unit should switch out of the freeze cycle Diagnosis If the evaporator is not cold check to see if HGV is still open or if TXV is not opening properly if WV is continuing to fill the reservoir if there are improper unit pressures 36 inoperative Comp or inoperative HM If the unit switches out of freeze with F S connector removed but would previously not switch out of freeze with F S connected long freeze 3 beep alarm F S may be sticking To check and clean F S see IV D Float Switch Check and Cleaning If the unit remains in freeze longer than 15 seconds after disconnecting black F S connector replace CB Note Normal freeze cycle will last 20 to 40 minutes depending on model and conditions Cycle times and pressures should follow performance data provided in this manual See III C Performance Data 6 Pump Out Cycle 10 20 second pump out LEDs 1 3 2 are on LED 4 is on when S4 dip switch 3 amp 4 are set to 3 off and 4 on CAUTION Do not adjust S4 dip switch 3 amp 4 to 3 off and 4 on Adjustment to this position on this model prevents the pump motor from rotating in the pump out direction For details see 2 Pump Out Timer S4 dip switch amp 4 Comp and FMR remain energized HGV en
23. beep occurs when the control switch is moved to the ICE position 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 the LEDs from the outer edge of the control board is 1 4 2 For details see Sequence of Operation i Ti LED Sequence Step LED Energized ime LEDs are On components mm Minute Fill 4 i Harvest Cycle Comp FMR WV 2 minutes 20 minutes 3 to 5 minutes HGV Harvest Pump Timer 1 3 2 Comp FMR PM 0 seconds 50 seconds harvest pump timer HGV Freeze Cycle 1 Comp FM FMR 5 minutes freeze timer 30 to 35 minutes PM LLV setting Pump Out Cycle 1 4 3 2 Comp FMR WV 10 seconds 20 seconds pump out timer PM HGV setting The built in safeties shut down the unit and have alarms as listed below No of Beeps High Evaporator Temp Check for harvest problem stuck HGV or relay hot temperature gt 127 F 53 C water entering unit stuck HM or shorted thermistor 2 Harvest Backup Timer Check for open thermistor HGV not opening TXV or harvest gt 20 min for two cycles LLV leaking by low charge inefficient Comp or WRV in a row leaking by Freeze Timer Check for F S stuck closed up WV leaking by HGV freeze gt freeze timer setting for leaking by PM not pumping TXV not feeding p
24. ground earth wire to the remote condenser unit are supplied from the icemaker Failure to properly ground earth the remote condenser unit could result in death or serious injury Specifications Icemaker 1 KM 1301SAH E air cooled AC SUPPLY VOLTAGE 220 240 50 1 11 8 5 Min Freeze 109 F WT 59 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A APPROXIMATE ICE PRODUCTION Ambient PER 24 HR Temp F _ 50 70 9 Ib day kg day 70 Reference without marks 80 90 1082 491 1004 455 897 407 100 1048 475 979 444 10 10 20 15 30 25 799 362 ICE CAPACITY 1 kg day 1025 465 SHAPE OF ICE Crescent Cube ICE PRODUCTION PER CYCLE 29 1 Ib 13 2 1440 pcs APPROXIMATE STORAGE CAPACITY N A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 Ib 2120 5 1 1900 4 1 WATER gal 24HR gal 100 Ib 157 15 6 537 48 2 EXTERIOR DIMENSIONS WxDxH 48 27 3 8 27 3 8 1219x695x695 mm EXTERIOR FINISH Stainless Steel Galvanized Steel Rear WEIGHT Net 275 lb 125 kg Shipping 315 Ib 143 kg CONNECTIONS ELECTRIC Permanent Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Outlet 3 4 FPT CONDENSATE DRAIN 3 8 OD Tube CUBE CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Thermistor and Timer ICE MAKING WATER CONTROL Timer Controlled
25. is empty When the thermostat is set in the prohibited range the icemaker operates continuously even if the ice storage bin is filled with ice Setting in the prohibited range may result in severe damage to the icemaker The thermostatic bin control is factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations Note that when the thermostatic bin control switch is open the control board red POWER OK LED is off 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Clear any ice away from the thermostatic bin control bulb 4 Remove the control box cover then disconnect the thermostatic bin control wires from the thermostatic bin control switch 5 Hold your hand around the thermostatic bulb to warm it up 6 Check for continuity across the thermostatic bin control switch If closed continue to step 6 If open adjust or replace the thermostatic bin control 7 With the multimeter test leads still in place hold ice on the thermostatic bin control bulb to lower the temperature Within 10 seconds the thermostatic bin control switch should open no continuity If it remains closed adjust or replace the thermostatic bin control 2 Mechanical Bin Control Check and Cleaning KM 1301SWH E KM 1301SRH E a Mechanical Bin Control Check To check the mechanical bin control switch follow
26. the control board shuts down the icemaker In this case see IV G 3 Low Production for possible solutions The freeze timer is factory set and generally no adjustment is required Before changing this setting contact Hoshizaki Technical Support at 1 800 233 1940 for recommendations 4 Dip Switch Setting Time No 10 minutes or AES 6 No 9 No 0 23 h Float Switch Control 55 dip switch 1 CAUTION Do not adjust This must be left in the factory default position or the unit will not operate correctly Factory set S5 dip switch 1 allows for single or double float switch applications The KM 1301SAH E KM1301SWH E and KM 1301SRH E use a single float switch i Refill Counter S5 dip switch 2 through 5 CAUTION Do not adjust These must be left in the factory default position or the unit will not operate correctly Factory set S5 dip switch 2 through 5 allows for refills during the freeze cycle The KM 1301 SAH E KM1301SWH E and KM 1301SRH E do not refill D Control Switch The control switch has three positions OFF for power off ICE for icemaking and WASH to activate the water pump when cleaning and sanitizing 24 Ill Technical Information A Water Circuit and Refrigeration Circuit 1 KM 1301SAH E air cooled OEM 1 929914 uoisuedx3 Me
27. the float switch assembly from the mounting bracket and remove the rubber boot from the bottom of the float switch assembly See Fig 4 6 Remove the retainer rod from the bottom of the float switch assembly then remove the float Be careful not to bend the retainer rod excessively when removing it 7 Wipe down the float switch assembly s housing shaft float and retainer rod with a mixture of 1 part Hoshizaki Scale Away and 25 parts warm water Clean the inside of the rubber boot and hose with cleaning solution Rinse the parts thoroughly with clean water 8 Reassemble the float switch assembly and replace it and the rubber boot in their correct positions Reconnect the vent tube and the flush tube 9 Move the control switch to the ICE position 10 Replace the insulation panel and front panel in their correct positions 11 Turn on the power supply to start the automatic icemaking process Vent Flush Shaft Fig 4 Float Switch Housing fa Float _ Retainer Rod Rubber Boot and Hose 44 E Thermistor Check To check thermistor resistance follow the steps below 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the control box cover 4 Remove the thermistor 5 Immerse the thermistor sensor portion in a glass containing ice and water for 2 or 3 minutes 6 Disconnect the w
28. use a flat blade screwdriver to rotate the adjustment screw on the water regulating valve until the temperature is in the proper Adjustment Screw CCW Higher CW Lower Top View range rotate counterclockwise to raise the temperature or clockwise to lower the temperature See Fig 5 Next check that Fig 5 the reference pressure is in the range indicated in the Head Pressure table in the Performance Data section If it is not in the proper range verify the refrigerant charge 3 Check that the condenser drain temperature is stable 45 Diagnostic Charts Before consulting the diagnostic charts check for correct installation proper voltage per unit nameplate and adequate water supply Check CB using the steps in IV B Control Board Check Check the dip switch settings to assure that S4 dip switch 3 4 7 8 9 amp 10 and S5 dip switch 1 through 5 are in the factory default position S4 dip switch 1 2 5 amp 6 are cleaning adjustments and the settings are flexible For factory default settings see II C 3 a Default Dip Switch Settings 1 No Ice Production No Ice Production Possible Cause 1 Power Supply 3 Water Supply 4 Thermostatic Bin Control See Thermostatic Bin Control Check 6 Control Switch 7 High Pressure Switch c Ambient or condenser water temperature too warm d Refrigerant overcharged Refrigerant lines or components plugged g Condenser water pressu
29. CONTROL SYSTEM Mechanical Level Switch and Timer COMPRESSOR Hermetic Model CS14K6E PF J 279 CONDENSER Air Cooled Remote Condenser Unit URC 14FE EVAPORATOR Vertical Type Stainless Steel and Copper REFRIGERANT CONTROL Thermostatic Expansion Valve Headmaster C P R on URC 14FE 190 PSIG REFRIGERANT CHARGE R404A 10 Ib 5 8 oz 4700 g Icemaker 5 Ib 15 2 oz Cond Unit 4 Ib 6 5 oz DESIGN PRESSURE High 467 PSIG Low 230 PSIG P C BOARD CIRCUIT PROTECTION High Voltage Cut Out Internal COMPRESSOR PROTECTION Auto Reset Overload Protector Internal REFRIGERANT CIRCUIT PROTECTION Auto Reset High Pressure Control Switch LOW WATER PROTECTION Float Switch ACCESSORIES SUPPLIED N A REQUIRED Ice Storage Bin Remote Condenser Unit URC 14FE or Equivalent OPERATING CONDITIONS VOLTAGE RANGE 198 254 V AMBIENT TEMP 45 100 WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG Note We reserve the right to make changes in specifications and design without prior notice 8 B Condenser Unit 1 URC 14FE Units mm in
30. Hoshizaki America Inc Stackable Crescent Cuber Models 13015 13015 13015 SERVICE MANUAL A Superior Degree of Reliability www hoshizaki com YCLESAVER evercheck Number 73181 Issued 4 12 201 I Only qualified service technicians should install service and maintain the icemaker No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual Failure to service and maintain the equipment in accordance with this manual may adversely affect safety performance component life and warranty coverage Hoshizaki provides this manual primarily to assist qualified service technicians in the service and maintenance of the icemaker Should the reader have any questions or concerns which have not been satisfactorily addressed please call write or send an e mail message to the Hoshizaki Technical Support Department for assistance HOSHIZAKI AMERICA INC 618 Highway 74 South Peachtree City GA 30269 Attn Hoshizaki Technical Support Department Phone 1 800 233 1940 Technical Support 770 487 2331 Fax 1 800 843 1056 770 487 3360 E mail techsupport 9 hoshizaki com Web Site www hoshizaki com NOTE To expedite assistance all correspondence communication MUST include the following information Model Number Serial Number Complete and detailed explanation of
31. Press and hold the actuator paddle The yellow BC OPEN LED should be on and the unit should shut down according to the chart below If it does not replace the control board Cycle at Mechanical Bin Control Activation Fill Cycle 15 seconds after activation Harvest Cycle At the end of the harvest cycle or up to 15 seconds into the freeze cycle if activated at the end of the harvest cycle Freeze Cycle 15 seconds after activation if activated at least 15 seconds before the 5 minute short cycle protection timer terminates Otherwise at the end of the next harvest cycle Single Unit Connection Detail Stacked Unit Connection Detail Wire Harness Connector B Upper Unit Wire Harness for upper unit Connector B not used ___ Wire i Bin Control Upper Harness Unit Wire Cable Connector Connector A Harness Lower Unit Wire Harness Connector A Connector B Control Board Red K4 Connector Actuator Paddle Control Bdard Red K4 Connector Actuator Paddle Fig 1 41 b Mechanical Control Cleaning Scale may build up on the mechanical bin control Scale can cause the actuator paddle and magnet to stick In this case the mechanical bin control should be cleaned WARNING CHOKING HAZARD Ensure all components fasteners
32. S VOLTAGE RANGE 198 254V AMBIENT TEMP 45 100 WATER SUPPLY TEMP 45 90 F WATER SUPPLY PRESSURE 10 113 PSIG Note We reserve the right to make changes in specifications and design without prior notice 3 KM 1301SRH E remote air cooled AC SUPPLY VOLTAGE 220 240 50 1 12 3 5 Min Freeze AT 109 F WT 59 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A APPROXIMATE ICE PRODUCTION Ambient PER 24 HR Temp F 70 Se ae Ib day kg day 70 Reference without marks 100 FOR THE EUROPEAN MARKET ICE CAPACITY Ib day kg day 1163 528 SHAPE OF ICE Crescent Cube ICE PRODUCTION PER CYCLE 32 Ib 14 3 kg 1440 pcs APPROXIMATE STORAGE CAPACITY N A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 ELECTRIC W 100 Ib 2070 4 4 1950 3 7 WATER gal 24HR gal 100 Ib 228 20 0 544 42 8 EXTERIOR DIMENSIONS WxDxH 48 27 3 8 27 3 8 1219x695x695 mm EXTERIOR FINISH Stainless Steel Galvanized Steel Rear WEIGHT Net 255 Ib 116 kg Shipping 315 Ib 143 kg CONNECTIONS ELECTRIC Permanent Connection WATER SUPPLY Inlet 1 2 FPT DRAIN Outlet 3 4 FPT CONDENSATE DRAIN 3 8 OD Tube REFRIGERATION Discharge Line 1 1 16 12 UNF Fitting 10 PARKER CIRCUIT Liquid Line 5 8 18 UNF Fitting 6 PARKER CUBE CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Thermistor and Timer ICE MAKING WATER CONTROL Timer Controlled Overflow Pipe COOLING WATER CONTROL N A BIN
33. at the evaporator outlet and the control board reads the thermistor s 3 9 kO signal The harvest timer is factory set and generally no adjustment is required However a setting longer than the factory setting may be advised in cases where the flush provided at harvest needs to be prolonged for extra cleaning Before changing this setting contact Hoshizaki Technical Support at 1 800 233 1940 for recommendations Keep in mind that setting the harvest timer to a longer setting decreases 24 hour production Note that the pump out timer S4 dip switch 3 amp 4 acts in place of the harvest timer during cycles with a pump out For details see II C 2 c Pump Out Timer S4 dip switch S4 Switch Setting Time eene OFF 9 c Pump Out Timer S4 dip switch 3 amp 4 CAUTION Do not adjust S4 dip switch 3 off and S4 dip switch 4 on for this model Otherwise pump motor does not rotate in the pump out direction When a pump out is called for the pump motor stops after the preceding freeze cycle The pump motor restarts 2 seconds later in the reverse direction taking water from the bottom of the tank 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 The pump motor drains the water tank for the time determined by the pump out timer
34. ation over to the harvest timer 54 dip switch 1 amp 2 The harvest timer has settings of 60 90 120 and 180 seconds For details see 2 6 Harvest Timer S4 dip switch 1 amp 2 When the harvest timer terminates the harvest cycle is complete CB checks the position of F S and proceeds to the next cycle if itis closed or calls for a 1 minute fill cycle if it is open The minimum total time allowed by CB for a complete harvest cycle is 2 minutes WV is energized during harvest for a maximum of 6 minutes or the length of harvest minus 0 or 50 seconds harvest pump timer S4 dip switch 7 whichever is shorter LED 4 goes off when WV and 2 relay auxiliary code 0 0 0 X11 relay auxiliary code U 1 and later de energize LED 3 comes on and PM energizes and runs for the last O or 50 seconds of harvest depending on S4 dip switch 7 setting CAUTION Do not adjust S4 dip switch 7 out of the factory default position on this model Adjustment outside of the factory default position may result in damage to the icemaker For details see Il C 2 e Harvest Pump Timer S4 dip switch 7 PM is energized through the 5 pin DBu wire on the CB K1 ten pin connector the X1 relay auxiliary code 0 9 0 X10 relay auxiliary code U 1 and later When the harvest timer terminates the harvest cycle is complete CB checks the position of F S and proceeds to the next cycle if it is closed or calls for a 1 minute fill cycle if it is open T
35. d S 0992 10H YOUMS 59 4 eur pinbr JO SIUJ9U S 1841 545 LN Da sre gt ir iar tor NY JojyeJode 3 segn Aeids lU 1 2 gt Ajddns 25 2 KM 1301SWH E water cooled J9je A mE jno dung jseAleH ezeel4 sone xoeuo Set YOUMS ejnssaJg uBiH Ge m eur pinbr om RN 4 iei 1 JO SIUJOU Joje1ode 3 EY s qn Aeid jenno A 1 5 segn E Jesuepuoo Ajddng 26 3 KM 1301SRH E remote air cooled jno dungd 15 7 4 gt 9 la meo 4oeu is Er S
36. e check which can be used at unit startup or for system diagnosis This procedure allows you to diagnose electrical system and component failures in normal operating conditions of 70 F 21 C or warmer air and 50 F 10 C or warmer water temperatures Before conducting the diagnostic procedure check for correct installation proper voltage per unit nameplate and adequate water supply Check CB using the steps in IV B Control Board Check Check the dip switch settings to assure that S4 dip switch 3 4 7 8 9 amp 10 and S5 dip switch 1 through 5 are in the factory default position S4 dip switch 1 2 5 amp 6 are cleaning adjustments and the settings are flexible For factory default settings see II C 2 a Default Dip Switch Settings As you go through the procedure check to assure the components energize and de energize correctly If not those components and controls are suspect 1 Turn off the power supply then access the control box Clear any ice from BC 2 Turn on the power supply then move the control switch to the ICE position A 5 second delay occurs CB red POWER OK LED and green BC CLOSED LED come on If red POWER OK LED is off on thermostatic BC unit KM 1301SAH E clear ice away from the thermostatic bin control bulb in the storage bin area If no ice is near the thermostatic bin control bulb or the LED does not come on even after clearing away ice check thermostatic BC See IV C 1 Thermostatic Bin Contr
37. e terminals Once reset the unit starts at the 1 minute fill cycle For audible alarm information see II C 1 a LED Lights and Audible Alarm Safeties 1 Check the dip switch settings to assure that S4 dip switch 3 4 7 8 9 amp 10 and S5 dip switch 1 through 5 are in the factory default position S4 dip switch 1 2 5 amp 6 are cleaning adjustments and the settings are flexible For factory default settings see Il C 2 a Default Dip Switch Settings 2 Move the control switch to the ICE position If the red POWER OK LED is on the control voltage is good If the red POWER OK LED is off on a thermostatic bin control unit KM 1301SAH E clear ice away from the thermostatic bin control bulb in the storage bin area If no ice is near the thermostatic bin control bulb or the red POWER OK LED does not come on even after clearing away ice check the thermostatic bin control See IV C 1 Thermostatic Bin Control Check If the thermostatic bin control is okay closed or you are diagnosing a mechanical bin control unit and the red POWER OK LED is off check the fuse control switch contacts high pressure switch and control transformer secondary circuit Transformer output is 10 5V at 115V primary input If the secondary circuit has proper voltage and the red LED is off the control board is bad and should be replaced If the secondary circuit does not have proper voltage check the control transformer primary circuit Check for
38. ection timer terminates Otherwise at the end of the next harvest cycle Legend BC bin control CB control board Comp compressor FM fan motor FMR fan motor remote F S float switch HGV hot gas valve LLV liquid line valve PM pump motor WV inlet water valve 16 19 eM 19 UI AM e10u481 I010UJ duund Nd JOJOW uej IN4 Aiquiasse eje d aui JO episino eui Jeziiues pue smoje siu pinbiI T1 05 SI Jewod uonisod HSVM Ul ueuM eui 2 pue pesn s y uo HSVM 941 anea 596 10 9 uonisod HSVM 991 UI 51 U91IAS ueuM peziBjeu3 uos 1204 5 4 uo 31 N3dO 41 045010 43919 pezi amp 1eue ep syueuoduuoo 1 045010 49919 141 N3dO uedo 58 OL lt uonejedo 1xeu BU JO pue BU 1e esiweuio oys 99 G 15291 je ji 295 GL 9 2 2 929914 L e o o 1S9AJEU
39. ergizes WV energizes if S4 dip switch 3 off and 4 on LLV and FM de energize PM stops for 2 seconds then reverses for 10 20 seconds depending on pump out timer S4 dip switch 3 amp 4 setting When the pump out timer terminates the pump out is complete The pump out frequency control is factory set for every 10th cycle and generally no adjustment is required However where water quality is bad and the icemaker needs a pump out more often the pump out frequency can be adjusted The pump out frequency control S4 dip switch 5 amp 6 can be set to have a pump out occur every cycle or every 2 5 or 10 cycles Timing of the first pump out is dependent on S4 dip switch 5 amp 6 settings See the table below S4 Dip Switch Setting Pump Out No 5 No 6 Frequency Every cycle After 2nd freeze cycle Every 2 cycles After 3rd freeze cycle Every 5 cycles After 6th freeze cycle Every 10 cycles After 11th freeze cycle Diagnosis If PM does not reverse check to see if CB S4 and S5 dip switch settings are in the factory default position If S4 dip switch 3 and 4 are adjusted to 3 off and 4 on WV and harvest pump timer relays energize Once these relays energize the pump motor rotates in the freeze cycle rotation See Wiring Diagrams Check PM circuit and capacitor check 5 pin DBu wire CB K1 ten pin connector for voltage harvest pump timer X1 and X2 relays auxiliary code 0 0 0 X10 and X11 relays auxiliary code U 1 and
40. es 9 iy C Control Board A Hoshizaki exclusive solid state control board is employed in Hoshizaki Stackable Crescent Cubers All models are pretested and factory set CAUTION 1 The control board is fragile handle very carefully 2 5 6 The control board contains integrated circuits which susceptible to failure due to static discharge It is especially important to touch the metal part of the unit before handling or replacing the control board Do not touch the electronic devices on the control board or the back of the control board Do not change wiring and connections Do not misconnect K4 and K5 because the same connector is used for the thermistor jumper KM 1301SAH E or mechanical bin control KM 1301SWH E KM 1301SRH E and float switch KM 1301SAH E utilizes a thermostatic bin control For KM 1301SAH E operation the jumper 444883601 must be in place on the control board RED K4 connector Always replace the whole control board assembly if it goes bad Do not short out power supply to test for voltage 1 Control Board Layout Control Board OUTPUT TEST Button used to test relays on control board WHITE K3 Connector Harvest Control thermistor Bin Control Switch aem ALARM RESET Button 4 Dip Switch on continuously in thermostatic bin control application ET a a Bin Cont
41. ex YOUMS eiqisn 55900 eur pinbr3 J9AI929H L PTEE Cn Jeu l S jn U U D 27870 udo puer FM V P 7 I Ol is at segn Aeids seqn Aeids IT HID N eA J9 M 19 U Ajddns un Jesuepuo 27 B Wiring Diagrams 1 Auxiliary Code 0 0 0 108140 1 AS OL jndino did 153 10810 LX AYTAY NOI 123810 difid dW d 153 EX cx 88 MOTHA A M 141 A 033 4 d 3JONVHO 0 3018 1HDIT 81 AvD AD MO TISA N3380 A 48 3078 msva naa y le 5 9 10H INI Le mM gt lt Plus M al X nad ng 9 to 5 lo NS 1904 LECON ng y M
42. g then remove the float Be careful not to bend the retainer rod excessively when removing it c Wipe down the float switch assembly s housing shaft float and retainer rod with cleaning solution Clean the inside of the rubber boot and hose with cleaning solution Rinse the parts thoroughly with clean water d Reassemble the float switch assembly and replace it and the rubber boot in their correct positions Reconnect the vent tube and the flush tube 8 Pour the cleaning solution into the water tank 9 Move the control switch on the control box to the WASH position 10 Replace the insulation panel and the front panel in their correct positions 11 Turn on the power supply to start the washing process 12 Turn off the power supply after 30 minutes 13 Remove the front panel and the insulation panel 14 Remove the drain plug Allow the water tank to drain Replace the drain plug and the insulation panel in their correct positions Ice Chute Float Switch Assembly Drain Plug Fig 6 56 15 Move the control switch to the ICE position 16 Replace the front panel in its correct position 17 Turn on the power supply to fill the water tank with water 18 Turn off the power supply after 3 minutes 19 Remove the front panel 20 Move the control switch to the WASH position 21 Replace the front panel in its correct position 22 Turn on the power supply to rinse off the cleaning solution 23 Turn off the power supply af
43. g liquid charge through the low side service valve with the unit running 9 Close the high and low side service valves Close the high and low side gauge manifold valves then disconnect the gauge manifold hoses 10 Cap the service valves to prevent a possible leak 53 B Important Notes for Component Replacement CAUTION When replacing a component listed below see the notes to help ensure proper operation Component S Install a new start capacitor run capacitor and start relay Expansion Valve Attach the expansion valve bulb to the suction line in the same location as the previous bulb The bulb should be between the 10 and 2 o clock position on the tube Secure the bulb with the clamp and holder then insulate it Hot Gas Valve Replace the strainer when replacing the hot gas valve Thermistor Attach the new thermistor to the suction line in the same location as the previous thermistor The thermistor should be at the 12 o clock position on the tube Smoothly fill the recessed area of the thermistor holder with high thermal conductive type sealant Hoshizaki America part number 4A0683 01 Silicone Heat Sink Compound 10 8108 manufactured by GC Electronics KE 4560 RTV manufactured by ShinEtsu Silicones or equivalent are recommended Secure the thermistor with the holder then insulate it Be very careful to prevent damage to the leads Thermistor Lead Thermistor Holder
44. he minimum total time allowed by CB for a complete harvest cycle is 2 minutes Diagnosis Check if Comp is running HGV and WV still energized Average harvest cycle at factory setting is 2 to 3 minutes How long does initial harvest last 1 5 minutes after initial harvest begins touch Comp discharge line Is it hot If not check refrigerant pressures and Comp operation If it is hot touch the inlet line to the evaporator Is it hot If it is hot and the freeze cycle is not starting check the harvest timer adjustment S4 dip switch 1 amp 2 the thermistor for open circuit the discharge line temperature Comp efficiency and if HGV is fully open For a thermistor check see IV E Thermistor Check Check that PM circulates water over evaporator for the last 50 seconds of harvest If not check X1 relay auxiliary code 0 U 0 X10 relay auxiliary code U 1 and later and S4 dip switch 3 amp 4 If 1 minute fill cycle starts see IV D Float Switch Check and Cleaning 5 Freeze Cycle LED 1 is on Comp and FMR remain energized PM energizes or remains energized depending on harvest pump timer S4 dip switch 7 setting FM and LLV energize HGV and X1 relay auxiliary code 0 U 0 X10 relay auxiliary code U 1 and later de energize The unit is held in freeze by a 5 minute short cycle protection timer CB will not accept a signal from F S After the 5 minute short cycle protection timer terminates CB turns freeze termination over to F
45. hing out of the freeze cycle No adjustment is required 1 Float Switch Check To check the float switch follow the steps below 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the insulation panel then remove the drain plug located on the lower front part of the ice chute See Fig 3 Allow the water tank to drain 4 Replace the drain plug in its correct position Be careful not to cross thread it 5 Remove the control box cover 6 Disconnect the black float switch connector from the control board BLACK Ice Chute Float Switch Assembly Drain Plug K5 connector Fig 3 7 Check for continuity across the float switch leads With the water tank empty the float switch should be open If open continue to step 8 If closed follow the steps in IV D 2 Float Switch Cleaning After cleaning the float switch check it again Replace if necessary 8 Reconnect the black float switch connector to the control board BLACK K5 connector then replace the control box cover in its correct position 9 Move the control switch to the ICE position Replace the insulation panel and the front panel in their correct positions then turn on the power supply After 1 minute the 1 minute fill cycle should end and the initial harvest cycle should begin If the initial harvest cycle begins the float switch is good and the check is complete If the initial harvest cycle does n
46. hite thermistor connector from the control board WHITE K3 connector and check the resistance between thermistor leads Normal reading is within 4 7 to 6 2 If outside the normal reading replace the thermistor See V B Important Notes for Component Replacement If inside the normal reading continue to the next step 7 Replace the thermistor in its correct position See V B Important Notes for Component Replacement 8 Reconnect the white thermistor connector to the control board WHITE K3 connector 9 Replace the control box cover in its correct position then turn on the power supply 10 Move the control switch to the ICE position 11 Once the harvest cycle starts begin timing the harvest cycle 12 The harvest timer should terminate and end the harvest cycle within 2 to 3 minutes If the harvest timer does not terminate and end the harvest cycle the harvest timer is bad and the control board should be replaced F Adjustment of Water Regulating Valve water cooled model The water regulating valve also called water regulator is factory set and generally no adjustment is required However when necessary adjust the water regulator using the following procedures 1 Prepare a thermometer to check the condenser drain temperature Attach a pressure gauge to the high side line of the system 2 Five minutes after a freeze cycle starts confirm that the thermometer reads 104 F to 115 F 40 C to 46 C If it does not
47. hnician can be found in the Installation Manual supplied with this icemaker C Preparing the Icemaker for Long Storage Performed by Qualified Service Technician CAUTION 1 When storing the icemaker for an extended time or in sub freezing temperatures follow the instructions below to prevent damage 2 To prevent damage to the water pump seal do not operate the icemaker with the control switch in the WASH position when the water tank is empty When the icemaker is not used for two or three days under normal conditions it is sufficient to move the control switch to the OFF position When storing the icemaker for an extended time or in sub freezing temperatures follow the instructions below 1 Remove the water from the icemaker water supply line 1 Turn off the power supply then remove the front panel 2 Move the control switch on the control box to the OFF position 58 3 Close the icemaker water supply line shut off valve then open the icemaker water supply line drain valve 4 Allow the line to drain by gravity 5 Attach a compressed air or carbon dioxide supply to the icemaker water supply line drain valve 6 Move the control switch to the ICE position 7 Replace the front panel in its correct position then turn on the power supply 8 Blow the icemaker water supply line out using the compressed air or carbon dioxide supply 9 Close the icemaker water supply line drain valve 2 Drain the water tank
48. ime is short cycle protection for Comp At the end of 5 minutes F S assumes control As ice builds on the evaporator the water level in the tank lowers The freeze cycle continues until F S opens and terminates the cycle There is a 15 second delay before CB acknowledges an open F S d Pump Out Cycle LEDs 1 3 and 2 are on LED 4 is on when S4 dip switch 3 amp 4 are set to 3 off and 4 on For details see II C 2 c Pump Out Timer S4 dip switch amp 4 CAUTION Do not adjust S4 dip switch 3 amp 4 to 3 off and 4 on Adjustment to this position on this model prevents the pump motor from rotating in the pump out direction Comp and FMR remain energized HGV energizes WV energizes if S4 dip switch 3 off and 4 on LLV and FM de energize PM stops for 2 seconds then reverses taking water from the bottom of the tank 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 F S When the pump out timer terminates the pump out is complete The first pump out occurs after the 11th freeze cycle then every 10th cycle thereafter The pump out frequency control is factory set and generally no adjustment is required However where water quality is bad and the icemaker needs a pump out more often the pump out frequency can be adjusted The pump out frequency control S4 dip switch 5 amp 6 can be set to have a pump out occ
49. ing Valve YJ 50 V Replacement of Components WARNING 1 This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire 2 Move the control switch to the OFF position and turn off the power supply before servicing Lockout Tagout to prevent the power from being turned back on inadvertently 3 CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after the unit is serviced Make sure that none have fallen into the storage bin 4 Make sure all food zones in the icemaker and storage bin are clean after the unit is serviced For cleaning procedures see VI Cleaning and Maintenance A Service for Refrigerant Lines A WARNING 1 Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA certified service personnel 2 Always recover the refrigerant and store it in an approved container Do not discharge the refrigerant into the atmosphere Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG DO NOT use R 404A as a mixture with pressurized air for leak testing CAUTION Do not leave the system open for longer than 15 minutes when replacing or servicing parts The Polyol Ester POE
50. k that CB has the K4 jumper in place on CB RED K4 connector KM 1301SAH E or clear ice away from the mechanical bin control actuator paddle in the storage bin area KM 1301SWH E KM 1301 SRH E There is a 5 second delay before startup Note that the order of the component LEDs from the outer edge of CB is 1 4 3 2 a 1 Minute Fill Cycle LED 4 is on WV and X2 relay auxiliary code 0 U 0 X11 relay auxiliary code U 1 and later energize and the 1 minute fill cycle begins After 1 minute CB checks for a closed F S If F S is closed the harvest cycle begins If not WV remains energized through additional 1 minute fill cycles until water fills the tank and closes F S This serves as a low water safety to protect PM b Initial Harvest Cycle LEDs 1 4 and 2 on WV and X2 relay auxiliary code 0 U O X11 relay auxiliary code U 1 and later remain energized HGV X1 relay auxiliary code 0 0 0 X10 relay auxiliary code U 1 and later Comp and FMR energize CB monitors the warming of the evaporator via the thermistor located on the suction line When the thermistor reaches 48 F 9 C CB reads a 3 9 signal from the thermistor and turns harvest termination over to the harvest timer 54 dip switch 1 amp 2 The harvest timer has settings of 60 90 120 and 180 seconds For details see II C 2 b Harvest Timer 54 dip switch 1 amp 2 WV is energized during harvest for a maximum of 6 minutes or the length of harvest
51. later If water does not pump out check and clean the check valve assembly and tubing 7 Normal Harvest Cycle same as the initial harvest cycle Return to IV A 4 Initial Harvest Cycle 37 8 Shutdown a Thermostatic Bin Control KM 1301SAH E When the unit is running hold ice in contact with the thermostatic bulb the thermostatic BC switch opens within 10 seconds shutting down the unit CB red POWER OK LED is off The bin control is factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations Diagnosis See IV C 1 Thermostatic Bin Control Check b Mechanical Bin Control KM 1301SWH E KM 1301SRH E See IV C 2 a Mechanical Bin Control Check Legend BC bin control CB control board Comp compressor FM fan motor FMR fan motor remote F S float switch HaV hot gas valve HM headmaster LLV liquid line valve PM pump motor TXV thermostatic expansion valve WV inlet water valve 38 Control Board Check Before replacing a control board that does not show a visible defect and that you suspect is bad always conduct the following check procedure This procedure will help you verify your diagnosis Alarm Reset If the control board is in alarm beeping press the ALARM RESET button on the control board while the control board is beeping WARNING Risk of electric shock Care should be taken not to touch liv
52. ld should be used for reference only 2 We reserve the right to make changes in specifications and design without prior notice 32 2 KM 1301SWH E water cooled APPROXIMATE ICE AMBIENT TEMP PRODUCTIONIPER 70 21 80 27 90 32 Ibs day kg day 100 38 APPROXIMATE ELECTRIC 70 21 CONSUMPTION 80 27 90 32 watts 100 38 APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32 gal day m day 100 38 FREEZING CYCLE TIME 70 21 80 27 90 32 min 100 38 HARVEST CYCLE TIME 70 21 80 27 90 32 min 100 38 HEAD PRESSURE 70 21 80 27 90 32 PSIG 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 19 382 BTU h AT 90 F 32 WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 600 BTU h AT 90 F 32 C WT 70 F 21 WATER FLOW FOR CONDENSER 117 gal h AT 100 F 38 WT 90 F 32 PRESSURE DROP OF COOLING WATER LINE lessthan10PSIG o Note 1 Pressure data is recorded at 5 minutes into freezing cycle The data not in bold should be used for reference only 2 We reserve the right to make changes in specifications and design without prior notice 33 3 KM 1301SRH E remote air cooled APPROXIMATE ICE AMBIENT TEMP PRODUCTION PER 24 HR CFPC 70 21 80 27 90 32 Ibs day kg day 100 38 APPROXIMATE ELECTRIC 70 21 CONSUMPTION 80 27 90 32 watts 100 38 APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32
53. lve Compressor Control Switch Y Drier Control Box Liquid Line Valve Transformer Box Mechanical Bin Control 12 3 KM 1301SRH E remote air cooled Separators Spray Tubes Low Side Service Valve Inlet Water Valve High Side Service Valve High Side Liquid Service Valve Water Supply Inlet Hot Gas Valve Junction Boxes Cube Guides Check Valves High Pressure Switch Expansion Valves Check Valve 7 water Receiver Tank Water Pump Float Switch Control Box Compressor Access Valve Control Switch Drier Liquid Line Valve Transformer Box Mechanical Bin Control 13 B Sequence of Operation IMPORTANT KM 1301SAH E utilizes a thermostatic bin control For KM 1301SAH E operation the jumper 4A4883G01 must be in place on the control board RED 4 connector or the unit will not operate 1 Sequence Cycles and Shutdown The steps in the sequence are as outlined below When power is supplied CB red POWER OK LED and green BC CLOSED LED come on If red POWER OK LED is off on KM 1301SAH E clear ice away from the thermostatic bin control bulb in the storage bin area If yellow BC OPEN LED is on the unit will not start In this case chec
54. nt water supply water cooled model b Out of adjustment See Adjustment of Water Regulating Valve 47 2 Freeze Up Defrost and clean the unit prior to diagnosing freeze up See VI A Cleaning and Sanitizing Instructions 1 Evaporator b ition 8 Cube Guide 4 Spray Tubes and or Spray Guides 5 Refrigerant Charge 6 Ambient Temperature 7 Water Supply C Insufficient water line size Minimum 3 8 nominal ID 10 mm nominal OD 8 Thermostatic Bin Control a Extension bracket not installed See IV C 1 Thermostatic Bin Bulb out of position Control Check c Bad contacts 9 Control Board a Harvest timer set too short See IV B Control Board Check b Defective 10 Mechanical Bin Control 8 Actuator does not move freely See IV C 2 Mechanical Bin Control Check and Cleaning 11 Thermistor 8 Loose disconnected or defective See IV E Thermistor Check a Water valve screen clogged 16 Water Regulating Valve 8 Leaking by water cooled model b Defective 48 T Evaporator 3 Spray Tubes and or Spray Guides Refrigerant charge 5 Check Valve Control Board See IV B Control Board Check Defective 7 Inlet Water Valve Leaking by 8 Float Switch Float does not move freely See IV D Float Switch Check b Defective and Cleaning 9 Pump Motor a RPM too slow a D 10 Expansion Valve TXV efective 11 Headmaster
55. ol Check If yellow BC OPEN LED is on indicating a full bin confirm that CB K4 jumper is in place on thermostatic BC unit KM 1301SAH E or check BC on mechanical BC unit KM 1301SWH E KM 1301SRH E See 2 Mechanical Bin Control Check 3 1 Minute Fill Cycle LED 4 is on WV and X2 relay auxiliary code 0 0 0 X11 relay auxiliary code U 1 and later energize and the 1 minute fill cycle begins After 1 minute CB checks for a closed F S If F S is closed the harvest cycle begins If closed continue to step 4 If open WV remains energized through additional 1 minute fill cycles until water fills the tank and closes F S low water safety Diagnosis If WV does not open check the supply voltage at WV terminals check continuity on the coil confirm the screen or external filter isn t plugged no water flow If unit fails to start harvest check for open F S or bad 1 minute timer in CB See IV D Float Switch Check and Cleaning and IV B Control Board Check 35 4 Initial Harvest Cycle LEDs 1 4 and 2 are on WV and 2 relay auxiliary code T 0 U 0 X11 relay auxiliary code U 1 and later remain energized HGV X1 relay auxiliary code 0 U O X10 relay auxiliary code U 1 and later Comp and FMR energize CB monitors the warming of the evaporator via the thermistor located on the suction line When the thermistor reaches 48 F 9 CB reads a 3 9 signal from the thermistor and turns harvest termin
56. oper and therefore dangerous The manufacturer cannot be held responsible for injury or damage resulting from improper incorrect and unreasonable use To reduce the risk of death electric shock serious injury or fire follow basic precautions including the following Only qualified service technicians should install service and maintain the icemaker Hard wired electrical connection is recommended Electrical connection must meet national state and local electrical code requirements Failure to meet these code requirements could result in death electric shock serious injury fire or severe damage to equipment This unit requires an independent power supply See the nameplate for proper voltage and breaker fuse size Failure to use a proper breaker or fuse can result in a tripped breaker blown fuse or damage to existing wiring This could lead to heat generation or fire THE ICEMAKER MUST BE GROUNDED EARTHED Failure to properly ground earth the icemaker could result in death or serious injury Move the control switch to the OFF position and turn off the power supply before servicing Lockout Tagout to prevent the power supply from being turned back on inadvertently Do not make any alterations to the unit Alterations could result in electric shock injury fire or damage to the unit Additional Warning for Remote Air Cooled Model THE REMOTE CONDENSER UNIT MUST BE GROUNDED EARTHED The power supply and
57. ot begin continue to step 10 10 Turn off the power supply 11 Remove the front panel then move the control switch to the OFF position 12 Remove the control box cover 13 Disconnect the black float switch connector from the control board BLACK K5 connector 14 Check for continuity across the float switch leads With the water tank full the float switch should be closed If the float switch is closed and the icemaker will not switch from the 1 minute fill cycle to the initial harvest cycle replace the control board If open confirm that the water tank is full If the tank is not full check the water supply water filters and inlet water valve If the tank is full follow the steps in IV D 2 Float Switch Cleaning After cleaning the float switch check it again Replace if necessary 43 2 Float Switch Cleaning Depending on local water conditions scale may build up on the float switch Scale on the switch can cause the float to stick In this case the float switch should be cleaned 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the insulation panel then remove the drain plug located on the lower front part of the ice chute See Fig 3 Allow the water tank to drain 4 Replace the drain plug in its correct position Be careful not to cross thread it 5 Disconnect the vent tube and the flush tube from the top of the float switch then remove
58. oua ag M M 3002 80102 y AS OL 1ndino 1euuojsueJL 4 9 e WA Eelam ig rS HM Qu svo 10 AMO ud gi j 019 To 10 MEZ A E TEIND go ug OS logi m 5 foe 760 0 lo ng ug ng 9 to spo MS 1014 E Oo i LINA Yadd OL Eol yf ULT WU Corn 8 o o 2 76 Nar 9 rg ENING AYTE 805538900 o to YOISHYFHL 350 5 18 HIB 00 HOSTEL 30 KM 1301SRH E remote air cooled 1081402 ONC Lu 3 000 0 133 NOLLISYIC 0 MOTIJA SAV 14d did 154 IFO A 03 9 08 0 0000 0 4 39NVMO 0 um e a amg 1 qom D MOTIIA N3295 A 4B i 3018 yuva nga OR 039 Ng dyno 2
59. pply to start the automatic icemaking process 57 B Maintenance The maintenance schedule below is a guideline More frequent maintenance may be required depending on water quality the icemaker s environment and local sanitation regulations WARNING 1 Except as specified below only qualified service technicians should attempt to service this icemaker 2 Move the power switch to the OFF position and disconnect power before servicing 1 Stainless Steel Exterior Performed by Qualified Service Technician or Owner Manager To prevent corrosion wipe the exterior occasionally with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt buildup 2 Storage Bin and Scoop Performed by Qualified Service Technician or Owner Manager Clean the scoop and the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 3 Air Filters air cooled model Performed by Qualified Service Technician or Owner Manager Plastic mesh air filters remove dirt and dust from the air and keep the condenser from getting clogged As the filters get clogged the icemaker s performance will be reduced Check the filters at least twice a month When clogged use warm water and a neutral cleaner to wash the filters 4 Condenser air cooled and remote air cooled models Performed by Qualified Service Technician The condenser should be checked and cleaned once a year Instructions for the service tec
60. pue je spes ejpped 99 dn Jo ejo o 1seAJeu jo pue 1S9AJeH e Jojenjoe 2g pezibieue ep Jaye 296 GL I 14 e 3 HHSLOEL INDI 3 HASLOEL IWNDI ON 92 sjueuoduloo Aejaq uwopinus Hes y pue uwopinus 949 9391 2 HO 1exeuie2 2 28 goed ui si jeduunf py ueuw peziBieue ep sjueuoduJoo snonunuoo uo 03S0712 29 J LON 58 sjoejuoo 291 OL uoneiedo onejsouueu Sinus qinq 3 HVS LOE L NY 51061000 Jaye 295 0 pue uwmopinus 1 1 51215 Jexeureo qing ON 99 peziBieue ep Iv HO Sequence Flow Chart 2 e oA2 0 ejoAo pue 54015 1055 6 4 pezi amp B1eue ep AT1 7 W4 99 02 01 10 99S 2 10 seziBieue ep pezi amp ieue ASH senumnuoo senunuoo dwog pezi amp G1eue op ADH pezibieue ATI
61. re too low or off water cooled model h Headmaster C P R open remote condenser unit 8 Control Transformer a Coil winding open or shorted 115V 10 5V 3 Control Board See IV B Control Board Check pj Defective e Fan not operating air cooled and remote air cooled models b Dirty air filter or condenser 10 Mechanical Bin Control Tripped with bin filled with ice See IV C 2 Mechanical Bin b Actuator does not move freely 11 Thermistor Leads shorted or open See IV E Thermistor Check 12 Hot Gas Valve Open in freeze cycle b Closed in harvest cycle 13 Inlet Water Valve a Mesh filter or orifice clogged b Coil winding open Open in freeze cycle 46 No Production Possible Cause 14 Float Switch a Float does not move freely See IV D Float Switch Check b Defective and Cleaning 15 Compressor a Compressor relay magnetic contactor contacts bad or coil winding open b Start capacitor or run capacitor defective C Internal overload protector open d Starter contacts bad or coil winding open Protector tripped f Compressor defective 76 Pump Moto 19 Fan Motor 20 Line Valve f applicable amm 21 Expansion Valve TXV Bulb loose b Operating erratically 22 Headmaster C P R remote Open out of temperature pressure range condenser unit 23 Water Regulating Valve Insufficie
62. rol Switch RED K4 Connector Open LED yellow Jumper 4A4883G01 mechanical bin control ja for Thermostatic Bin application only Control Application KM 1301SAH E or Part Number 5 e BC CLOSED Mechanical Bin Control KM 1301SWH E Alarm Buzzer KM 1301SRH E Power LED red lights when power is supplied to the control board BLACK K5 Connector Float Switch Label control board revision level indicated on label on side of relay Relay LEDs 4 indicate which relays are energized as listed below Oo lt CN n K1 Ten Pin Connector Pins 1 through 10 1 9 Magnetic Contactor 2 Hot Gas Valve HGV Liquid Line Valve LLV Fan Motor FM 4 Pump Motor icemaking 5 Pump Motor pump out harvest if applicable 6 Inlet Water Valve WV 7 10 Component Power Supply 8 Open LED 2 X2 Relay Hot Gas Valve HGV Fan Motor FM FM off when LED on 9 LED 3 X3 Relay Pump Motor PM on at pump out harvest if applicable 88 LED 4 X4 Relay Inlet Water Valve WV LED 1 X1 Relay Compressor Comp Fan Motor Remote Q 00 FMR E 1 2 5 2 Transformer G Control Board Part Number 2A3792 01 19 a LED Lights and Audible Alarm Safeties At startup a 5 second delay occurs while the control board conducts an internal timer check A
63. roperly two cycles in a row LLV not opening low charge HM not bypassing or Timer is factory set using S4 dip inefficient Comp switch 9 amp 10 To reset the above safeties 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 safeties automatically reset when High Voltage voltage is corrected 147Vac 5 or more Legend Comp compressor FM fan motor FWR 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 WV inlet water valve 20 2 Controls and Adjustments CAUTION Dip switches are factory set Failure to maintain factory settings may adversely affect performance and warranty coverage For more information contact Hoshizaki Technical Support at 1 800 233 1940 a Default Dip Switch Settings The dip switches are factory set to the following positions ip Swit SwithNo 1 2 5 6 550 5 1 2 3 4 5 Freeze Timer 9 amp 10 Factory Use 8 Harvest Pump Timer 7 Do not adjust Pump Out Frequency Control 5 amp 6 Pump Out Timer 3 amp 4 Do not adjust to 3 off and 4 on Harvest Timer 1 amp 2 b Harvest Timer S4 dip switch 1 amp 2 The harvest timer starts when the thermistor reads 48 F 9 C
64. s APPROXIMATE STORAGE CAPACITY N A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 Ib 1780 3 5 1780 3 2 WATER gal 24HR gal 100 Ib 1643 132 5 1335 100 4 WATER COOLED CONDENSER 1404 113 2 821 61 7 gal 24HR gal 100 Ib EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH 48 27 3 8 27 3 8 1219x695x695 mm Stainless Steel Galvanized Steel Rear WEIGHT Net 265 Ib 120 kg Shipping 315 Ib 143 kg CONNECTIONS ELECTRIC Permanent Connection WATER SUPPLY Inlet 1 2 FPT Cond Inlet 1 2 FPT DRAIN Outlet 3 4 FPT Cond Outlet 3 8 FPT CONDENSATE DRAIN 3 8 OD Tube CUBE CONTROL SYSTEM Float Switch HARVESTING CONTROL SYSTEM Hot Gas and Water Thermistor and Timer ICE MAKING WATER CONTROL Timer Controlled Overflow Pipe COOLING WATER CONTROL Water Regulating Valve BIN CONTROL SYSTEM Mechanical Level Switch and Timer COMPRESSOR Hermetic Model 514 6 237 CONDENSER Water Cooled Tube in Tube Type EVAPORATOR Vertical Type Stainless Steel and Copper REFRIGERANT CONTROL Thermostatic Expansion Valve REFRIGERANT CHARGE R404A 2 Ib 10 3 oz 1200 g DESIGN PRESSURE High 427 PSIG Low 230 PSIG P C BOARD CIRCUIT PROTECTION High Voltage Cut Out Internal COMPRESSOR PROTECTION Auto Reset Overload Protector Internal REFRIGERANT CIRCUIT PROTECTION Auto Reset High Pressure Control Switch LOW WATER PROTECTION Float Switch ACCESSORIES SUPPLIED N A REQUIRED Ice Storage Bin OPERATING CONDITION
65. ter 5 minutes 24 Remove the front panel and the insulation panel 25 Remove the drain plug Allow the water tank to drain Replace the drain plug and the insulation panel in their correct positions Note Do not replace the insulation panel when you proceed to 2 Sanitizing Procedure 26 Repeat steps 15 through 25 three more times to rinse thoroughly Note If you do not sanitize the icemaker go to step 9 in 2 Sanitizing Procedure 2 Sanitizing Procedure Following Cleaning Procedure 1 Dilute 2 5 fl oz 74 ml or 5 tbs of a 5 2596 sodium hypochlorite solution chlorine bleach with 5 gal 191 of warm water 2 Pour the sanitizing solution into the water tank 3 Replace the insulation panel and the front panel in their correct positions Note Make sure the control switch is in the WASH position 4 5 6 7 Turn on the power supply to start the sanitizing process Turn off the power supply after 15 minutes Remove the front panel and the insulation panel Remove the drain plug Allow the water tank to drain Replace the drain plug and the insulation panel in their correct positions 8 Repeat steps 15 through 25 in 1 Cleaning Procedure two times to rinse thoroughly 9 Move the control switch to the ICE position 10 Replace the front panel in its correct position 11 12 gt Clean the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning Turn on the power su
66. th the bottles of cleaning and sanitizing solution 3 Always wear liquid proof gloves and goggles to prevent the cleaning and sanitizing solutions from coming into contact with skin or eyes 4 To prevent damage to the water pump seal do not operate the icemaker with the control switch in the WASH position when the water tank is empty 1 Cleaning Procedure 1 Dilute 27 fl oz 800 ml of Hoshizaki Scale Away with 5 gal 19 1 of warm water 2 Remove all ice from the evaporator and the storage bin Note To remove cubes on the evaporator turn off the power supply and turn it back on after 3 minutes The harvest cycle starts and the cubes will be removed from the evaporator 3 Turn off the power supply 4 Remove the front panel then remove the insulation panel by first removing the thumbscrew lifting up the panel slightly and pulling it towards you 55 5 Remove the plug located on the lower front part of the ice chute See Fig 6 Allow the water tank to drain 6 Replace the drain plug in its correct position Be careful not to cross thread it 7 In bad or severe water conditions clean the float switch assembly as described below Otherwise continue to step 8 a Disconnect the vent tube and the flush tube from the top of the float switch then remove the float switch assembly Remove the rubber boot from the bottom of the assembly b Remove the retainer rod from the bottom of the float switch housin
67. the problem This manual should be read carefully before the icemaker is serviced maintenance operations are performed Only qualified service technicians should install service and maintain the icemaker Read the warnings contained in this booklet carefully as they give important information regarding safety Please retain this booklet for any further reference that may be necessary CONTENTS Important Safety Information E 5 EI 6 6 1 KM 1301SAH E air cooled as 6 2 1 7 3 KM 1301SRH E remote air cooled eicere eise 8 9 Il General 11 Pi 11 1 13015 air cooled mm 11 2 KM 1301SWH E 9 00160 12 KM 1301SRH E remote 7 13 B 56000 66 97 ada 14 1 Sequence Cycles Shutdown 2 14 1 Min te aA 14
68. the steps below 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the control box cover then clear any ice away from the mechanical bin control 4 Check bin control cable and wire harness connections See Fig 1 5 Disconnect the red connector from the control board RED K4 connector 6 Check for continuity across the wires of the red connector When the actuator paddle is not engaged the mechanical bin control switch is closed If open check that bin control cable connector and the wire harness connector s are properly connected and that the actuator paddle is not sticking Clean if necessary See IV C 2 b Mechanical Bin Control Cleaning If the mechanical bin control switch still reads open replace the mechanical bin control 40 7 Press the actuator paddle check for continuity across the wires of the red connector When the actuator paddle is engaged the mechanical bin control switch is open If closed check that the actuator paddle is not restricted Clean if necessary See IV C 2 b Mechanical Bin Control Cleaning If the mechanical bin control switch still reads closed replace the mechanical bin control 8 Reconnect the red connector to the control board RED K4 connector then move the control switch to the ICE position Turn on the power supply 9 Check that the green BC CLOSED LED on the control board is on 10 Allow the unit to cycle on
69. to be used for evacuation and refrigerant charge should be exclusively for POE oils 2 Turn on the vacuum pump Open the gauge manifold valves then open the high and low side service valves Never allow the oil in the vacuum pump to flow backwards 3 Allow the vacuum pump to pull down to a 29 9 Hg vacuum Evacuating period depends on pump capacity 52 4 Close the low side valve high side valve on the gauge manifold 5 Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder Remember to loosen the connection and purge the air from the hose For air cooled and water cooled models see the nameplate for the required refrigerant charge For remote air cooled model see the rating label inside the icemaker Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 latest edition be used 6 A liquid charge is required when charging an R 404A system to prevent fractionation Place the service cylinder on the scales if the service cylinder is not equipped with a dip tube invert the service cylinder then place it on the scales Open the high side valve on the gauge manifold 7 Allow the system to charge with liquid until the proper charge weight is met 8 If necessary add any remaining charge to the system through the low side CAUTION To prevent compressor damage use a throttling valve or liquid dispensing device to add the remainin
70. uns the last O or 50 seconds of harvest When the pump is on water circulates over the evaporator The water valve is open during harvest for a maximum of 6 minutes or the length of harvest minus 0 or 50 seconds determined by the harvest pump timer setting whichever is shorter When 54 dip switch 7 is on the pump motor is energized through the 5 DBu wire on the control board K1 ten pin connector and the X1 relay auxiliary code 0 U 0 X10 relay auxiliary code U 1 and later The 5 pin DBu wire is used in most applications to reverse the pump motor or energize the drain valve in pump out cycles In this application it is used for the pump out cycle reverse rotation as well as the harvest pump timer freeze rotation Therefore the harvest pump timer relays are needed to control the pump motor direction during the pump out and harvest cycles See Wiring Diagrams 54 Dip Switch Setting Pump Motor Time seconds 50 f Factory Use S4 dip switch 8 Factory set for proper operation Do not adjust This must be left in the factory default position g Freeze Timer S4 dip switch 9 amp 10 CAUTION Adjust to proper specification or the unit may not operate correctly The freeze timer setting determines the maximum allowed freeze time to prevent possible freeze up issues Upon termination of the freeze timer the control board initiates the harvest cycle After 2 consecutive freeze timer terminations
71. ur every cycle or every 2 5 or 10 cycles Timing of the first pump out is dependent on S4 dip switch 5 amp 6 settings See the table below S4 Dip Switch Setting Pump Out Nos Nee Frequency OFF Every cycle After 2nd freeze cycle Every 2 cycles After 3rd freeze cycle OFF Every 5 cycles After 6th freeze cycle ON Every 10 cycles After 11th freeze cycle e Harvest Cycle Same as the initial harvest cycle See II B 1 b Initial Harvest Cycle Note Unit continues to cycle until BC is satisfied or power is turned off The unit always restarts at the 1 minute fill cycle f Shutdown 1 Thermostatic Bin Control KM 1301 SAH E When ice contacts the thermostatic BC bulb BC open thermostatic BC shuts down the unit within 10 seconds Thermostatic BC is factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations 2 Mechanical Control KM 1301SWH E KM 1301 SRH E When mechanical BC is activated BC open the yellow BC OPEN LED comes on The unit then shuts down as outlined in the table below Cycle at Mechanical Bin Control Activation Fill Cycle 15 seconds after activation Harvest Cycle At the end of the harvest cycle or up to 15 seconds into the freeze cycle if activated at the end of the harvest cycle Freeze Cycle 15 seconds after activation if activated at least 15 seconds before the 5 minute short cycle prot

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