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Hoshizaki KM-1301SAH/3 User's Manual

1. ODIAS A OISd Lc v8c Nido AV 133 104140 01X 0 AND 3810 Wd OLY SISd iF VBE 30NvHO SAV SY ISdAdVH U91IA S uBiH dd d H o 400 4010 AS OL e 1ndino 1euuojsue1 498035 000070 X 0 8 9 y S 6 M 5 toli HM E AYA an us LN OLX 5 Ki 9 0 n A gt 0l E is 5 y 9 WS 19014 BD d T TRO NOY ni a hws Lr 5 t y hi a space 90 MIND Nia i 304 HLIM E 09 0E2 802 Jaye pue N 39 KM 1301SRH remote air cooled ASLE AS OL 1ndino 0000 70 OlSd 125726 0217 109102 0147 AV 38 011 4 0 4 OLX SAV GANT L 53ABVH U91IMS inss id OTIIA 3 38 30 LINA 83543040 310938 Ji HIM OND NM 1 9700079 4 pE o D
2. YO 4504 0 0 1 37 2 Auxiliary Code 0 1 and Later a KM 1301SAH air cooled OlSd 125 26 uano TOMLNOD OLX TTET E AVIS NOLD3UIC dd OLX 95 nono SAY 138 1S3A8NH U91IMS inss id uBiH AS OL jndino 9 000070 t T 120009 n 9954 92771 4 H to Q 3 E y be o NS Di S INI xw dd An Sl El t L Ta OLX A l d c y ng ipe 0 1 u gt Ql s 1 MS 1015 HAIS 00911 51 fo eo UD INO ii can DNIS mm gt x x ms 9 Y MJ 70 109007 8 A p w HOLSWUHL xni 03 HLIM E 4 09 0E2 802 Jaye pue N 38
3. Water Pump Float Switch Control Box Compressor Access Valve Bin Control Thermostat Control Switch Transformer Box Liquid Line Valve KM 1301SRH3 17 Sequence of Operation IMPORTANT This unit utilizes a thermostatic bin control For operation the K4 jumper 4A4883G01 must be in place on the control board RED K4 connector 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 The green BC CLOSED LED is on continuously when the K4 jumper is in place If CB yellow BC OPEN LED is on check that CB has the jumper in place on CB RED K4 connector This unit will not operate unless the K4 jumper is in place 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 and 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 are on WV and X2 relay auxiliary code 0 0 0 X11
4. 16 KM 1301SRH KM 1301SRH3 remote air cooled 17 regm To 18 1 Sequence Cycles and Shutdown 18 1 Min te Fill C yClE eme to eai equ 18 b Initial Harvest 18 C Freeze Cycle 18 d P ump Q ut Cycle uuu a a u 19 6 Harvest y e 19 H Sh ldeW ae C M aus 19 P SEQUENCE Flow OMAN 20 C C nirol Board sessen TREE 21 Control Board LAV OUN 22 2 Features 23 a Maximum Water Supply Period 6 minutes 23 b Harvest Backup Timer and Freeze 23 c High Temperature Safety ied 23 d Low Water ganasaq a aka pawan 23 e High Voltage and Low Voltage Cut outs 23 f LED Lights and Audible Alarm nnn 24 3 Controls and Adj StMEMt S deua na erae RR D umi 25 Default Dip Switch Settings a E 25 b Harvest Timer S4 dip switch 1
5. 921 HO 4 Z A11 ASH 7 W4 uedo Sq gt 7 99 02 01 10 UD Ne Sa SHEJ Jeuun 998 210 71 sse 10 VJ 6 senunuoo pezibieus ASH 0 6 4 87 YIN jojsiuueu 92 dwog senunuoo YIN 1 10151 uL dwog senugnuoo AM s nunuoo dwog 92991 10 uedo S 4 pezibjeue op AM ayo 5 4 2945 6 4 7 6 4 oes 06 00 T T 44 c I o pee lt onuoo im US pS 4 3 youms dip 2es Jo4uo9 16 4 u OWI ultu S 041009 JOU ulu e O gt 1O SILU U L 02 01 10 S S19A91 Udy 295 Z JO Oz somey e 56016 uo dip rS 15 LON 9 S yms 013 6 uouws dip 75 OG euous SI Z YAMS dip YS 295 06 dip rs ejoAo 92294 euun 92991 e JO 0 somey Jo uiu 9 AM e 10 19 10 98 e g uun 97994 e 1 9 p I 9 9 2 2994 9 9 2
6. ui ue owl mE y in 4 E i m z 4 Eal J IH x ry ncs enm 3n o W wi us E LE S f O1X i 1 4 i 100100 X i i x nga 0 L NS dil iege n WS 1013 WoO 9 19 49 H 7 i 01010 21 L3N9YW un y n T b eu STET 70 I 09 0 2 807 Jaye pue 1301 remote air cooled AS OL 1ndinO 1euuojsuei AV TF 108102 OLX NOT 1248 SAY HS 83411 15307 0 dWfd 0 125726 OlSd 0 21 U91IA S uBiH ALYAH J LINA 85988090 SLONSY Mosg 300 401 1441 1977 on ME wal 9 m ro vod p am nog iol amp 15 N 4 14 0000000000 Te Lil OLX A 0 4 nga 18
7. Z 1 1 1 N HHS L0 L INM HMSLEOEL INM HVSLOE L INM eouenbes 9 JOYEM 19JUI AM J03ouJ duind INd pinbi A T1 526 10U A5H YOUMS 120 9 4 uej ulIN JO OW JosseJduioo duio 5 uiq 9g8 pu B 1 5061000 95 Sinus jun oneisouueui S 9 UOO Jaye vesoruu pue L O O 01 suunjeJ pue sdois uedo 4 uedo 5 4 71 AM Kejap 99 6 Joye 98uo 6 4 suiBeq lt dnyejs jelu IS O ejnui L lt sd 1s 215 20 C Control Board A Hoshizaki exclusive solid state control board is employed in KM 1301SAH 3 KM 1301SWH 3 and KM 1301SRH 3 Stackable Crescent Cubers All models are pretested and factory set CAUTION The control board is fragile handle very carefully The control board contains integrated circuits which are 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 K3 K4 and
8. g 80702 3513 10410 NIG 0 0 1 ASL 34 KM 1301SRH remote air cooled ASLL jndino 5 3506 Gy AVIS YAWIL JS3AUWH NB SIND IX AY Td NOLD3HIQ SAY H8 83411 S3AUH X A X una jno4no NOH 3 cunc 109110 0 0 1 803 35 KM 1301SAH3 air cooled and KM 1301SWH3 water cooled AS OL jndino lt 79009 4100 319 AN OI
9. N A 90 70 70 50 F 1760 3 2 1740 3 2 257 19 4 546 41 4 1561 118 861 65 3 48 x 27 3 8 x 27 3 8 1219 x 695 x 695 mm Stainless Steel Galvanized Steel Rear Net 265 Ibs 120 kg Shipping 315 Ibs 143 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT 3 8 OD Tube Cond Inlet Cond Outlet 1 2 FPT 3 8 FPT Float Switch Hot Gas and Water Thermistor and Timer Timer Controlled Overflow Pipe Water Regulator Thermostat Hermetic Model CS12K6E PFV 237 Water cooled Tube in tube type Vertical type Stainless Steel and Copper Thermostatic Expansion Valve R404A 2 Ib 8 2 oz 11409 High 427PSIG Low 230PSIG High Voltage Cut out Internal Auto reset Overload Protector Internal Auto reset High Pressure Control Switch Float Switch N A Ice Storage Bin VOLTAGE RANGE AMBIENT TEMP WATER SUPPLY TEMP WATER SUPPLY PRESSURE 187 253V 45 100 45 90 10 113 PSIG Note We reserve the right to make changes in specifications and design without prior notice 4 KM 1301SWH3 water cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 Ibs WATER gal 24HR gal 100 Ibs WATER COOLED CONDENSER gal 24HR gal 100 Ibs CEC
10. Replacement of Remote Air Cooled 73 I Removal and Replacement of Water Regulating Valve water cooled model 74 J Adjustment of Water Regulating Valve water cooled model 75 Removal and Replacement of Headmaster Condensing Pressure Regulator remote air cooled model n a EUER P Ra AR 75 Removal and Replacement 76 M Removal and Replacement of Fan Motor air cooled and remote air cooled models 77 Removal and Replacement of Inlet Water 2201 77 Removal and Replacement of Pump 78 P Removal and Replacement of Control Board 79 VI Cleaning and I 1 10 za roc NR 80 A Cleaning and Sanitizing Instructions euis utente destine 80 Cleaninmg PRO COGIC 81 2 Sanitizing Procedure Following Cleaning Procedure 82 B Maintenance NStrUCHONS c ara pau 83 C Preparing the Icemaker or Long Storage 83 Important Safety Information Throughout this manual notices appear to bring your attention to situations which could result in death
11. 3 Disconnect the control board connectors from the control board 4 Remove the control board 5 Adjust the dip switches on the new control board to the factory default settings See II C 3 a Default Dip Switch Settings 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 6 7 8 9 Install the new control board taking not to damage it Connect the control board connectors to the new control board Replace the control box cover and front panel in their correct positions gt lt Turn on the power supply 79 VI Cleaning and Maintenance IMPORTANT Ensure all components fasteners and thumbscrews are securely in place after any cleaning or maintenance is done to the equipment A Cleaning and Sanitizing Instructions Hoshizaki recommends cleaning this icemaker at least once a year More frequent cleaning however may be required in some existing water conditions WARNING To prevent injury to individuals and damage to the icemaker do not use ammonia type cleaners Always wear liquid proof gloves to prevent the cleaning and sanitizing solutions from coming into contact with skin Carefully follow any instructions provided with the bottles of cleaning and sanitizing solution Never run the icemaker when the water tank is empty IMPORTANT Th
12. JO siuJ8u L Bulue o n h Us Lg Lie s c _ alle ET NZ 1 segn segn JO M PlUl 30 2 KM 1301SWH KM 1301SWH3 water cooled sawi jno dung 1 2 14 oeuo a BAR eur uonons se9 10H U9IIMS yeaH ojnsseJg uBiH eur pinbr Ajddns 101810 9 TEMERE pes 81 15 Bite tate SX JojeJode 43 SW A 1 Aeids 1 Aeids lt m _ me L LN 1 su puoo 4 18AA 19lul A ddng 31 3 KM 1301SRH KM 1301SRH3 remote air cooled JOJ AA jno dung 15 Joi1siueu r3 h hkz h I 7 se eee V MV seqn Aeids Keds SOA EA xoeuo J M S uonons S N LA sed 10H 3 E
13. 1 Vent careful not to cross thread it tube from the top of the float switch then remove the float switch assembly from the mounting bracket and remove the rubber boot from the bottom of the float switch assembly See Fig 1 5 Disconnect the vent tube and the flush Flush n x x Shaft Float Switch Housing 6 Remove the retainer rod from the bottom of the float switch assembly then remove the fa Float float Be careful not to bend the retainer rod excessively when removing it _ Retainer Rod Rubber Boot Fig 1 55 7 Wipe down the float switch assembly s housing shaft float and retainer rod with mixture of 1 part of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc and 25 parts of warm water Clean the inside of the rubber boot and hose with the 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 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 4 Remove the thermistor See V L Removal and Replacement of Thermistor
14. 4 JANA 5Y210H 8 JANA n LM mi gt lt gt ngg MS ud 49 tf ie 02 OOE O 5 qv 15 801V1N0 71139 o levog 1 m baw VOL 1081 07 NIG Jaye pue N ASL 1109 020 40 40 KM 1301SAH3 air cooled 1301 water cooled MOTTA OISd 12782 OlSd 12745 umnoj Jpg OISd 786 OlSd mono Id AV 104140 OLX Avg AD 01123810 dhd 01X seen BEIODCIMIV 30NVMO 100 AINO L AS OL ud jndino 1 NY
15. OFF ON 6 27 h Float Switch Control S5 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 3 KM1301SWH 3 and KM 1301SRH 3 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 13015 KM1301SWH 3 and KM 1301SRH 3 do not refill 28 D Bin Control 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 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 switch is a temperature controlled switch used to control the level of ice in the bin It is in line with the power supply to the control switch The thermostatic bin control switch shuts down the unit within 10 seconds when ice contacts the thermostatic bulb regardless of the cycle at activation The bin control is factory set and generally no adjustment is
16. 3 YES 48 x 27 3 8 x 27 3 8 1219 x 695 x 695 mm Stainless Steel Galvanized Steel Rear Net 275 Ibs 125 kg Shipping 315 Ibs 143 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT 3 8 OD Tube Float Switch Hot Gas and Water Thermistor and Timer Timer Controlled Overflow Pipe N A Thermostat Hermetic Model CS14K6E PFV 237 Air Cooled Fin and tube type Vertical type Stainless Steel and Copper Thermostatic Expansion Valve R404A Ib 15 5 oz 18009 High 467PSIG Low 230PSIG High Voltage Cut out Internal Auto reset Overload Protector Internal Auto reset High Pressure Control Switch Float Switch N A Ice Storage Bin VOLTAGE RANGE 187 253 V AMBIENT TEMP 45 100 F 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 1301SAH3 air cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 lbs WATER gal 24HR gal 100 Ibs TIER LEVEL ENERGY STAR EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN CONDENSATE DRAIN CUBE CONTROL SYSTEM HARVESTING CONTROL SYSTEM ICE M
17. B Wing V da 33 1 A xiliary Code T 0 UQ E 33 KM 1301 SAH 2 cosa ice urit il ana M 33 b KM 1301SWH water cooled E RE Mp AGE e Rad 34 KM 1301SRH remote air cooled aa 1 35 d 13015 air cooled KM 1301SWHS water cooled 36 KM 1301SRH 3 remote air cooled 37 2 Auxiliary Code U 1 and Later zane quqawa ptor testet a apad copas 38 KM 1301SAHI 38 b KM 1301SWH water cooled 39 c KM 1301SRH remote air cooled 40 d 13015 air cooled 13015 3 water cooled 41 KM 1301SRH 3 remote air cooled ita Dru da anda nar 42 G Performance Data 43 Le KM 1301SAHI a ips600 8d c 43 2 KM 1301SAFI9 air 660 60 44 3 KM 1301SWH water cooled 45 4 KM 1301SWH3 water cooled 46 5 KM 1301SRH remote air cooled bia oues 47 6 KM 1301SRH3 remote air c
18. Components Mae Aw 1 Minute Fill Cycle Harvest Cycle 2 minutes 20 minutes 3 to 5 minutes 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 E 3 sec Type of Alarm High Evaporator Temp Check for harvest problem stuck HGV or relay hot temperature gt 127 F water entering unit stuck HM or shorted thermistor 53 Harvest Backup Timer Check for open thermistor HGV not opening TXV or harvest 20 min for two cycles LLV leaking by low charge or inefficient Comp in a row Freeze Timer Check for F S stuck closed up WV leaking by HGV freeze specified setting for leaking by PM not pumping TXV not feeding properly 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 will turn off if voltage protection operates gt 92Vac 5 or less The control voltage safeties automatically reset when High Voltage voltage is corrected 147Vac 5 or more Legend C
19. If connected to a closed loop water supply also open the condenser return outlet drain valve 4 Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve 83 5 Open the water regulating valve by using 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 and replace the right side panel in its correct position 2 Remove the water from the icemaker water supply line 1 If you have not already done so turn off the power supply and remove the front panel 2 Close the icemaker water supply line shut off valve and open the icemaker water supply line drain valve 3 Allow the line to drain by gravity 4 Attach a compressed air or carbon dioxide supply to the icemaker water supply line drain valve 5 Make sure at least 3 minutes have elapsed since you turned off the power supply Make sure the control switch is in the ICE position Replace the front panel in its correct position and turn on the power supply 6 Blow the icemaker water supply line out using the compressed air or carbon dioxide supply 7 Close the icemaker water supply line drain valve 3 Drain the water tank 1 Turn off the power supply and remove the front panel Move the control switch to the OFF position 2 Remove the insulation panel
20. amp 2 25 c Pump Out Timer 54 dip switch amp 4 nnna 26 d Pump Out Frequency Control S4 dip switch 5 amp 6 26 3 e Harvest Pump Timer S4 dip switch 7 27 f Factory Use S4 dip SiC ih 8 u crm ppatebemaa 27 g Freeze Timer S4 dip switch 9 amp TO 27 h Float Switch Control S5 dip switch 1 28 i Refill Counter S5 dip switch 2 through 5 28 29 E Float 29 29 ccm 29 Hn Technical 30 A Water Circuit and Refrigeration Circuit 30 1 KM 1301SAH 13015 air cooled 30 2 KM 1301SWH KM 1301SWHS water cooled 31 KM 1301SRH KM 1301SRH3 remote air cooled 32
21. eiqisnj eur pinbr3 55900 19AI929H Bulue o PlUl 32 iagrams D 1 Auxiliary Code T 0 U 0 iring B W 1301SAH air cooled a KM ASLE I AS OL oo jndino 1euuojsuel dW d 13 EX 8102700 1123819 dhd 1 SAY 38 YAWIL 154 YOUMS OlSd 12 28 uno OlSd NES 2 D Lia M Lis iX e 19 Tz 5 14 UNIS o P 2 48 gt NV V N 1031407 NIB FN 0 0 1 303 33 b KM 1301SWH water cooled AS OL jndino 1euuojsuei 915055 AV 134 dW d 1S3AENH SIND I AY 139 SMI SAY 198 YAWIL 154 ILI gt lt gt lt gt lt SISd Le v8c DISd 9298
22. remote condenser and liquid line unit temperature too warm h Water Supply Line Condenser water 1 Check and get water cooled model pressure too low or recommended pressure off and high pressure control opens and closes frequently i Water Regulating Valve 1 Set too high 1 Adjust or replace See water cooled model V J Adjustment of Water Regulating Valve 2 Evaporator is Frozen Up Possible Cause 1 Freeze cycle time is a Inlet Water Valve 1 Diaphragm does 1 Check for water leaks with too long close icemaker off b Float Switch 1 Float does not move 1 Clean or replace See IV freely or defective D Float Switch Check and switch Cleaning Evaporator 3 Spray Tubes 60 Possible Cause 1 Freeze cycle time is f Thermistor 1 Loose or 1 Reattach or connect See too long continued disconnected IV E Thermistor Check g Refrigerant Charge 1 Low charge 1 Check for leaks Recover repair evacuate and recharge h Expansion Valve 1 Bulb loose 1 Secure bulb 2 Operating erratically 2 Check and replace i Control Board 1 Defective 1 See IV B Control Board Check 2 All ice formed on a Evaporator 1 Scaled up evaporator does not 2 Damaged 2 Replace piman narest b Ambient and or Water 1 Too cool 1 Increase temperature Temperature c Water Supply Line 1 Water pressure too 1 Check and get low recommended pressure d
23. 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 improper and therefore dangerous The manufacturer cannot be held responsible for eventual damage caused by improper incorrect and unreasonable use To reduce the risk of death electric shock serious injury or fire follow basic precautions including the following Electrical connection must be hard wired and 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 THIS UNIT MUST BE GROUNDED Failure to properly ground this unit could result in death or serious injury This unit should be disassembled or repaired only by qualified service personnel to reduce the risk of electric shock injury or fire Do not
24. 8 Replace the junction box cover in its correct position remote air cooled models 9 Turn on the power supply N Removal and Replacement of Inlet Water Valve 1 Turn off the power supply 2 Close the icemaker water supply line shut off valve Open the icemaker water supply line drain valve 3 Remove the front panel 4 Disconnect the valve outlet tubing by releasing the clamp 5 Loosen the fitting nut Be careful not to lose the washer 6 Disconnect the terminals from the inlet water valve 7 Remove the bracket and valve from the unit 8 Install the new valve Replace the removed parts in the reverse order of which they were removed Make sure the washer is in place in the fitting nut 9 Close the icemaker water supply line drain valve Open the icemaker water supply line shut off valve 77 10 Turn on the power supply 11 Check for leaks 12 Replace the front panel in its correct position Cube Guide Separator 13 Turn on the power supply O Removal and Replacement of Pump Motor 1 Turn off the power supply 2 Remove the front panel and the insulation panel 3 Drain the water tank by removing the cap ropping Hole located on the front bottom part of the ice dropping hole See Fig 4 4 Replace the cap in its correct position Be c Fig 4 ap careful not to cross thread the cap 5 Disconnect the pump suction and discharge hoses 6 Remove the closed end connectors from the
25. CEE TIER LEVEL ENERGY STAR EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN CONDENSATE DRAIN CUBE CONTROL SYSTEM HARVESTING CONTROL SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE P C BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 208 230 60 3 6 1A 5 Min Freeze 104 F WT 80 F 20A 20A Ambient Temp F WATER TEMP F 70 1333 605 1323 600 1246 565 80 1326 601 1311 594 1198 544 90 1323 600 1300 590 1201 545 100 1286 584 1277 579 1110 503 Crescent Cube 32 2 165 14 6 1440pcs 90 70 70 50 1840 3 4 1770 3 2 248 19 1 557 41 8 1547 119 857 64 3 48 x 27 3 8 x 27 3 8 1219 x 695 x 695 Stainless Steel Galvanized Steel Rear Net 265 Ibs 120 kg Shipping 315 Ibs 143 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT 3 8 OD Tube Cond Inlet Cond Outlet 1 2 FPT 3 e FPT Float Switch Hot Gas and Water Thermistor and Timer Timer Controlled Overflow Pipe Water Regulator Thermostat Hermetic Model CS12K6E TF5 237 Water cooled Tube in tube type Vertical type Stainless Steel and Copper Thermos
26. Cleaning Control Board 1 Defective 1 See IV B Control Board Check 58 3 Compressor will a Magnetic Contactor 1 Bad contacts 1 Check for continuity and not start or stops replace operating 2 Coil winding open 2 Replace b Start Capacitor or Run 1 Defective 1 Replace Capacitor C Internal Overload 1 Loose terminal 1 Tighten or replace 4 2 2 Voltage 2 Check and correct roug o the rig d Starter 1 Bad contacts 1 Check and replace 2 Coil winding open 2 Replace e Compressor 1 Power supply not 1 Refer to nameplate and within specifications correct 2 Wiring to compressor 2 Check for loose connection or open and replace 3 Defective 3 Replace 4 Protector tripped 4 Reduce temperature f Control Board 1 No power to contactor 1 See IV B Control Board Check 4 Water continues to be supplied in freeze p Inlet Water Valve 1 Diaphragm does not 1 Check for water leaks with Check 5 Water pump will a Pump Motor 1 Motor winding open 1 Replace start 2 Bearing worn out 2 Replace 3 Wiring to pump motor 3 Check for loose connection or open and replace 4 Defective capacitor 4 Replace 5 Defective or bound 5 Replace and clean impeller 6 Mechanical seal worn 6 Check and replace out b Control Board 1 Defective 1 See IV B Control Board Check Control Switch 1 Replace 6 Freeze cycle time is a Pump
27. Disconnect the vent tube and the flush tube from the top of the float switch then remove the float switch assembly from the mounting bracket and remove the rubber boot from the bottom of the assembly b 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 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 Fully open the cleaning valve on the left side wall of the machine compartment 0 Move the control switch on the control box to the WASH position Replace the insulation panel and the front panel in their correct positions Turn on the power supply to start the washing process 1 1 1 1 14 Remove the front panel and the insulation panel 1 1 2 3 Turn off the power supply after 30 minutes 4 5 Remove the cap located on the front bottom part of the ice dropping hole Drain the water tank Replace the cap and the insulation panel in their correct positions 16 Move the control switch to the ICE position 17 Close the cleaning valve Note The icem
28. F 40 C to 46 If it does not rotate the adjustment screw by using a flat blade screwdriver until the temperature Top View is in the proper range See Fig 2 Next check that the reference pressure is in the range indicated in the Head Pressure table Fig 2 in the Performance Data section If it is not in the proper range verify the refrigerant charge CW Higher CCW Lower 3 Check that the condenser drain temperature is stable K Removal and Replacement of Headmaster Condensing Pressure Regulator C P R remote air cooled model 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 headmaster and drier by using wet cloths to prevent the headmaster and drier from overheating Do not allow the headmaster or drier to exceed 250 F 121 C 1 Turn off the power supply 2 Remove the panels from the remote condenser unit 3 Recover the refrigerant and store it in an approved container 4 Before heating break off the stub on the dome to release the dome charge 5 Disconnect the headmaster 6 Place the new headmaster in position 7 Remove the drier then place the new drier in position 75 8 Braze all fittings with nitrogen gas fl
29. However adjustment may be needed in some conditions particularly at higher altitude locations Legend BC bin control CB control board Comp compressor FMR fan motor remote FM fan motor F S float switch HGV hot gas valve LLV liquid line valve PM pump motor WV inlet water valve 19 uonisod 301 u peoeld s YMS y HEJSA JOU y Buizniues pue Jaye 9501 91ON eje d au BY pue episino uloq pue Buiueej y Ajquiesse 4 Jo eui pue eA eA eui eui perjddns SI Jamod uonisod HSVM u pue sI yms y uo uonisod HSVAA 941 uonisod HSVM 991 SI 5 ay 2 5 5 ui si Jeduun py 7 Isnonunuoo uo 037 5 49919 3LON peso 38 uedo 58 e oqe OL AMUN L ye suls ayewa oneisouueur oN
30. Remove the cap located on the front bottom part of the ice dropping hole Drain the water tank See Fig 6 3 Replace the cap and the insulation panel in their correct positions Be careful not to cross thread the cap 4 Remove all ice from the storage bin Clean the storage bin using a neutral cleaner Rinse thoroughly after cleaning 5 Replace the insulation panel and the front panel in their correct positions Cube Guide Separator Front Inside of Ice Dropping Hole Cap Fig 6 84
31. 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 1301SWH water cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 lbs WATER gal 24HR gal 100 Ibs WATER COOLED CONDENSER gal 24HR gal 100 Ibs CEC CEE TIER LEVEL ENERGY STAR EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN CONDENSATE DRAIN CUBE CONTROL SYSTEM HARVESTING CONTROL SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 208 230 60 1 3 wire with neutral for 115V 8 2 A 5 Min Freeze AT 104 F WT 80 F 20A 20A Ambient WATER TEMP F Temp F 70 90 70 51318 598 1319 599 1249 567 80 1319 598 1321 599 1211 549 90 1319 599 1323 600 1228 557 100 1281 581 1301 590 1141 518 Crescent Cube 31 Ibs 14 1 kg 1440pcs
32. 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 recommended for charging an R 404A system Invert the service cylinder and place it on 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 Use a throttling valve or liquid dispensing device to add the remaining liquid charge through the low side service valve with the unit running 9 Close the high and low side service valves Then close the high and low side gauge manifold valves and disconnect the gauge manifold hoses 10 Cap the service valves to prevent a possible leak B Removal and Replacement of Compressor 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 Note When replacing a compressor with a defective w
33. 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 48 Service Diagnosis WARNING This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire 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 sequence 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 or warmer air and 50 F 10 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
34. is off the control board is bad and should be replaced See V P Removal and Replacement of Control Board If the secondary circuit does not have proper voltage check the control transformer primary circuit Check for 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 F 1 1 The icemaker will not start 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 See V P Removal and Replacement of Control Board 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 See V P Remo
35. make any alterations to the unit Alterations could result in electric shock injury fire or damage to the unit Specifications Icemaker 1 KM 1301SAH air cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 lbs WATER gal 24HR gal 100 Ibs CEC CEE TIER LEVEL ENERGY STAR EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN CONDENSATE DRAIN CUBE CONTROL SYSTEM HARVESTING CONTROL SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE P C BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 208 230 60 1 3 wire with neutral for 115V 12 4 A 5 Min Freeze AT 104 F WT 80 F 20A 20A Ambient WATER TEMP F TempCF 50 70 90 70 1329 603 1281 581 1188 539 80 1292 586 1217 552 1109 503 90 1281 581 1164 528 1060 481 100 1253 568 1140 517 965 438 Crescent Cube 29 8 Ibs 13 5 kg 1440pcs 90 70 F 70 50 F 2180 4 5 2160 3 9 183 15 7 605 45 5
36. 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 3 e Harvest Pump Timer S4 dip switch 7 PM is energized through the 5 pin DBu wire on the CB K1 ten pin connector and the X1 relay auxiliary code 0 0 0 X10 relay auxiliary code U 1 and later When the harvest timer expires 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 The 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
37. 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 4 Initial Harvest Cycle LEDs 1 4 and 2 are on WV and X relay auxiliary code T 0 U 0 X11 relay auxiliary code U 1 and later remain energized HGV X1 relay auxiliary code 0 U 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 3 9 signal from the thermistor and turns harvest termination over to the harvest timer S4 dip switch 1 amp 2 The harvest timer has settings of 60 90 120 and 180 seconds For details see IIl C 3 b Harvest Timer 54 dip switch 1 amp 2 When the harvest timer expires 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 itis 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 O or 50 seconds harvest pump timer S4 dip switch 7 whichever is shorter LED 4 goes off when WV and X2 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
38. pump motor leads Remove the ground wire 7 8 9 10 Remove the two screws and the pump motor bracket Remove the pump housing and check the impeller If the impeller is defective install a new impeller gt Install the new motor or new parts and replace the removed parts in the reverse order of which they were removed Be sure to reconnect the pump motor ground wire 11 Turn on the power supply and check for leaks 12 Replace the insulation panel and the front panel in their correct positions 13 Turn on the power supply 78 P Removal and Replacement of Control Board When replacing a control board follow the precautions below CAUTION The control board is fragile handle very carefully The control board contains integrated circuits which are 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 and float switch K4 must have the K4 jumper in place for proper operation Always replace the whole control board assembly if it goes bad Do not short out power supply to test for voltage 1 Turn off the power supply 2 Remove the front panel and the control box cover
39. relay auxiliary code 0 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 50 5 Freeze Cycle 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 U O 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 expires CB turns freeze termination over to F 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 an inoperative Comp or an 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 bl
40. required However adjustment may be needed in some conditions particularly at higher altitude locations For further details see IV C Bin Control Check E Float Switch 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 switching out of the freeze cycle No adjustment is required F Thermistor The thermistor is used as a harvest control sensor The thermistor s resistance varies depending on the suction line temperature The control board monitors the resistance to start the harvest timer No adjustment is required G 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 29 Technical Information A Water Circuit and Refrigeration Circuit 1 KM 1301SAH KM 1301SAH3 air cooled xoeuo inss iq Jou jno dung 2 4 JosseJdujo2 eur S eur uonong YOUMS eur pinbr
41. secure it with the bolt Replace the panels in their correct positions 15 Turn on the power supply E Removal and Replacement of Evaporator 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 1 Turn off the power supply 2 3 4 Remove the spray tubes Remove the insulation at the U shaped notch where the refrigeration tubing passes through the molded chassis Remove the panels and the front and top insulation Recover the refrigerant and store it in an approved container 5 Disconnect the evaporator tubing 6 Remove the pop rivets securing the evaporator then lift out the evaporator 7 8 9 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG Install the new evaporator Remove the drier then place the new drier in position 10 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
42. the right to make changes in specifications and design without prior notice 45 4 KM 1301SWH3 water cooled APPROXIMATE ICE AMBIENT TEMP CFPC 70 21 80 27 90 32 Ibs 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 17 400 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 300 BTU h AT 90 F 32 C WT 70 F 21 C WATER FLOW FOR CONDENSER 119 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 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 46 5 KM 1301SRH remote air cooled APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day 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
43. the screws and the valve from the bracket 11 Install the new valve 12 Remove the drier then place the new drier in position 13 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG 14 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 15 Evacuate the system and charge it with refrigerant See the nameplate for the required refrigerant charge 16 Connect the flare connections 17 Close the drain valve s Open the condenser water supply line shut off valve If connected to a closed loop water supply also open the condenser return outlet shut off valve 74 18 Check for water leaks 19 Replace the panels in their correct positions 20 Turn on the power supply J 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 Adjustment Screw 2 Five minutes after a freeze cycle starts confirm that the thermometer reads 104 F to 115
44. 0 E E 6o loH 9 Lot P n D qme 2 ig NS 1014 6 e o hi N O w y E 7 DM MEM o li TNO TR o T 9 9 1 h 00 149 Jaye pue 42 C Performance Data 1 KM 1301SAH air cooled APPROXIMATE ICE AMBIENT TEMP PRODUCTIONPER24HR erc 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 20 300 BTU h AT 90 F 32 WT 70 F 21 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 43 2 KM 1301SAH3 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 gal day m day 100 38 FREEZING CYCLE TIME 70 21 80
45. 2 OD line dedicated per machine 2 Water filter clogged or 2 Replace filter or install a flow rate too small higher flow rate filter 3 High hardness or 3 Install a water softener or contains impurities filter Spray Guide 5 Other Possible Cause 1 Icemaker will not stop a Thermostatic Bin 1 See IV C Bin Control when bin is filled with Control Check EB Abnormal noise b Fan Motor excep water cooled model 3 Fan blade does not 3 Replace move freely Compressor 1 Bearings worn out 1 Replace cylinder valve broken 2 Mounting pad out of 2 Reinstall position d Refrigerant Lines 1 Rub or touch other 1 Reposition lines or surfaces Blceinsoragetin a Drain Lines 1 Plugged often melts Tm z Bin 1 Drains not run 1 OT the drain lines separately c Ice Cube Guide 1 Out of position 1 Place in position Circulated water falls into bin 64 V Removal and Replacement of Components WARNING This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire Move the control switch to the OFF position and turn off the power supply before servicing 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
46. 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W KWH 100 165 WATER gal 24HR gal 100 Ibs CEC CEE TIER LEVEL ENERGY STAR EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN CONDENSATE DRAIN CUBE CONTROL SYSTEM HARVESTING CONTROL SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE P C BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 208 230 60 3 10 7A 5 Min Freeze AT 104 F WT 80 F 20A 20A Ambient WATER TEMP F Temp F 50 T 70 1339 607 1297 589 1203 546 80 1307 593 1243 564 1127 511 90 1297 589 1197 543 1088 on 100 1266 574 1171 531 988 448 Crescent Cube 30 7 Ibs 13 9 1440pcs N A 90 70 F 70 50 2140 4 3 2090 3 8 192 16 0 463 34 6 3 5 48 x 27 3 8 x 27 3 8 1219 x 695 x 695 mm Stainless Steel Galvanized Steel Rear Net 255 Ibs 116 kg Shipping 315 Ibs 143 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT 3 8 OD Tube Float Switch Hot Gas and Water Thermistor and Timer Timer Controlled Overflow
47. 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 20 200 BTU h AT 90 F 32 WT 70 F 21 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 44 3 KM 1301SWH water cooled APPROXIMATE ICE AMBIENT TEMP PRETA ON PER 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 gal 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 17 600 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 300 BTU h 90 F 32 C WT 70 F 219C WATER FLOW FOR CONDENSER 120 gal h AT 100 F 38 C WT 90 F 329C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 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
48. 5 Immerse the thermistor sensor portion in a glass containing ice and water for 2 or 3 minutes 6 Remove the white thermistor connector from the control board WHITE 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 If inside the normal reading continue to the next step 7 Replace the thermistor in its correct position See V L Removal Replacement of Thermistor 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 Move the control switch to the ICE position 3 Remove the control box cover Once the harvest cycle starts begin timing the harvest cycle The harvest timer should expire and terminate the harvest cycle within 2 to 3 minutes If the harvest timer does not expire and terminate the harvest cycle the harvest timer is bad and the control board should be replaced See Removal and Replacement of Control Board 10 11 12 56 Diagnostic Charts 1 No Ice Production 1 The icemaker will not a Power Supply 1 Off blown fuse or 1 Turn on replace or reset tripped breaker 3 Bad contacts 3 Check for continuity and replace 4 Not within 4 Refer to nameplate and specifications correct b Transformer 115V 1 Voltage tap switch 1 Verify
49. 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 17 600 BTU h 90 F 32 WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 500 BTU h 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 133 CU IN URC 14F 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 47 6 KM 1301SRH3 remote air cooled APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR F C 50 10 70 21 90 32 Ibs day kg day 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 17 500 BTU h AT 90 F 32 WT 709 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 400 BTU h AT 90 F 32 WT 709 21 CONDENSER VOLUME 133 CU IN URC 14F Note 1 Pressure data is recorded at 5 minutes into freezing cycle The
50. AKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE P C BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 208 230 60 3 9 5 5 Min Freeze AT 104 F WT 80 F 20A 20A Ambient WATER TEMP F Temp F 70 9 70 1298 589 1257 570 1162 527 80 1267 575 1204 546 1086 493 90 1257 570 1159 526 1049 476 100 1225 556 1133 514 947 430 Crescent Cube 30 4 16 13 8 kg 1440pcs N A 90 70 70 50 2220 4 6 2090 3 9 181 15 6 511 39 4 3 YES 48 x 27 3 8 x 27 3 8 1219 x 695 x 695 mm Stainless Steel Galvanized Steel Rear Net 275 1 5 125 kg Shipping 315 Ibs 143 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT 3 8 OD Tube Float Switch Hot Gas and Water Thermistor and Timer Timer Controlled Overflow Pipe N A Thermostat Hermetic Model CS14K6E TF5 237 Air Cooled Fin and tube type Vertical type Stainless Steel and Copper Thermostatic Expansion Valve R404A 3 Ib 15 5 oz 18009 High 467PSIG Low 230PSIG High Voltage Cut out Internal Auto reset Overload Protector Internal Auto reset High Pressure Control Switch Float Switch N A Ice Storage Bin VOLTAGE RANGE 187 253 V AMBIENT TEMP 45 100 F WATER SUPPLY
51. CTION REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE OPERATING CONDITIONS ACCESSORIES SUPPLIED 115 60 1 Connection to Icemaker 115V Total 2 6FLA 130W 35 11 16 x 15 11 16 x 21 15 16 907 2 x 398 x 557 8 mm 37 13 16 x 18 1 8 x 36 15 16 960 x 460 x 937 8 mm Galvanized Steel Net 80 Ibs 36 kg X Shipping 87 Ibs 39 Permanent Connection Discharge Line 1 1 16 12 UNF Fitting 410 AEROQUIP Liquid Line 5 8 18 UNF Fitting 6 AEROQUIP Air cooled Fin and tube type Thermal Protection Condensing Pressure Regulator R 404A 40 7 oz 20009 467 5 VOLTAGE RANGE 104 127 V AMBIENT TEMP 20 122 F Leg 2 pcs Hex Head Bolt w Washer 8x 16 8 pcs Hex Nut 8 8 pcs 14 Il General Information A Construction 1 KM 1301SAH KM 1301SAHS3 air cooled Spray Tubes Low Side Service Valve Inlet Water Valve High Side Service Valve Evaporator Assembly Expansion Valves Water Supply Inlet 2 nein Hot Gas Valve I LAIT Wa lt Check Valves Cleaning Valve der EE NHL Air Cooled ERST ET 7 S Condenser Check Valve g bs ud LAO Control Box gt Feet Xe water NEP SIN CONS 2 E B
52. F 50 T o 1353 614 1315 596 1219 553 1324 600 1264 573 1144 519 1315 596 1222 554 1110 504 1281 581 1196 542 1008 457 Crescent Cube 31 1 Ibs 14 1 kg 1440pcs N A 90 70 70 50 2090 4 1 2010 3 6 203 16 6 479 35 4 3 5 48 x 27 3 8 x 27 3 8 1219 x 695 x 695 Stainless Steel Galvanized Steel Rear Net 255 Ibs 116 kg Shipping 315 Ibs 143 kg Permanent Connection Inlet 1 2 FPT Outlet 3 4 FPT 3 8 OD Tube Float Switch Hot Gas and Water Thermistor and Timer Timer Controlled Overflow Pipe N A Thermostat Hermetic Model CS12K6E PFV 279 Air Cooled Remote Condenser Unit URC 14F Vertical type Stainless Steel and Copper Thermostatic Expansion Valve Condensing Pressure Regulator on URC 14F R404A 10 Ibs 5 8 oz 47009 Icemaker 5 Ibs 15 2 oz Cond Unit 4 Ibs 6 5 oz High 467PSIG Low 230PSIG High Voltage Cut out Internal Auto reset Overload Protector Internal Auto reset High Pressure Control Switch Float Switch N A Ice Storage Bin Remote Condenser Unit VOLTAGE RANGE 187 253 V AMBIENT TEMP 45 100 F 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 11 6 KM 1301SRH3 remote air cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER
53. Hoshizaki America Inc Stackable Crescent Cuber Models KM 1301SAH 3 KM 1301SVWH 3 KM 1301l SRH 3 SERVICE MANUAL A Superior Degree of Reliability www hoshizaki com K YCLESAVER evercheck Number 73169 Issued 1 21 2009 Revised 8 6 2009 IMPORTANT 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 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 the probl
54. K5 because the same connector is used for the thermistor K4 jumper and float switch The control board RED K4 connector must have the K4 jumper in place for proper operation Always replace the whole control board assembly if it goes bad Do not short out power supply to test for voltage 21 1 Control Board Layout Control Board Bin Control Switch Closed LED green on continuously in thermostatic bin control application 54 OUTPUT TEST Button ALARM RESET Button Switch used to test relays on control board 900 8 09 WHITE Connector mui Bin Control Switch 4 Open LED yellow TTT TTT mechanical bin control Sarat Star at tar at R application onl uoa a upon RED K4 Connector y ER I mm o m m m HE Jumper 444883001 soi al thermostatic bin control BC CLOSED R13 R4 Part Number oon cM mom application or Mechanical Alarm Buzzer xl ooo T Bin Control gt S5 Dip Switch P LED LL x ower red T BLACK K5 Connector lights when power is supplied to the control board 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 LED 2 X2 Relay Hot Gas Valve HGV Fan Motor FM FM off when LED on K1 Ten Pin Connector Pins 1 through 10 1 9 Magneti
55. Out Check Valve 1 Leaking by 1 Clean or replace too short b Float Switch 1 Dirty or erratic 1 Clean or replace See IV operation D Float Switch Check and Cleaning Control Board 1 Defective 1 See IV B Control Board Check d Water System 1 Water leaks 1 Check connections for water leaks and replace 59 7 Fan motor will a Fan Motor 1 Motor winding open 1 Replace not start or is not 2 Bearing worn out 2 Replace operating excep 3 Wiring to fan motor 3 Check for loose connection water cooled model or open and replace 4 Defective capacitor 4 Replace 5 Fan blade bound 5 Check and replace b Control Board 1 Defective 1 See Control Board Check 8 All components a Refrigerant 1 Low charge 1 Check for leaks Recover run but no ice is repair evacuate and produced recharge 2 Air or moisture 2 Replace drier evacuate trapped and recharge b Compressor 1 Defective 1 Replace c Hot Gas Valve 1 Continues to open 1 Check and replace freeze cycle d Liquid Line Valve 1 Continues to close 1 Check and replace if applicable freeze cycle e Inlet Water Valve 1 Inlet water valve is 1 Check for water leaks with wide open during icemaker off freeze f Expansion Valve 1 Bulb loose 1 Secure bulb 2 Operating erratically 2 Check and replace g Headmaster 1 Not operating properly 1 Replace headmaster
56. Pipe N A Thermostat Hermetic Model CS12K6E TF5 279 Air Cooled Remote Condenser Unit URC 14F Vertical type Stainless Steel and Copper Thermostatic Expansion Valve Condensing Pressure Regulator on URC 14F R404A 10 Ibs 5 8 oz 47009 Icemaker 5 Ibs 15 2 oz Cond Unit 4 Ibs 6 5 oz High 467PSIG Low 230PSIG High Voltage Cut out Internal Auto reset Overload Protector Internal Auto reset High Pressure Control Switch Float Switch N A Ice Storage Bin Remote Condenser Unit VOLTAGE RANGE 187 253 V AMBIENT TEMP 45 100 F 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 12 B Condenser Unit 1 URC 14F Unit inches mm 36 13 16 985mm 33 15 32 850mm 10x20mm 4x3 SLOTTED HOLES 17 1 8 435mm 14 15 16 380mm 14 9 16 370mm 14 1 16 357mm 15 11 16 398mm 35 11 16 907 2mm epe GS SSeS IEEE 21 15 16 557 2 11 16 ELECT SUPPLY 7 8 DIAM OPENING 15 3 4 2 15 16 380mm 380mm 13 SPECIFICATIONS MODEL URC 14F AC SUPPLY VOLTAGE FAN MOTOR EXTERIOR DIMENSIONS WxDxH DIMENSIONS INCLUDING LEGS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC REFRIGERANT CONDENSER FAN MOTOR PROTE
57. Sd 125782 015 125726 umno GWIL 159 EX 10910 LX CX AY dS 01123910 dW d 1X SAY 198 YAWIL S3AUNH OISd iz v8 OlSd 25210 1 04 lapo iepow ____ U91IA S uBiH 0 9 7 7 NE MENS QU 5 vr te y rl Mz PEERS Ta T L t LA l y ngo YAWN YOISIMUSHL 3513 0 0 1 36 1301 remote air cooled AS OL 1 153 EX AY Ida 081NO IX CX AVI3U 1123810 SAV 1Y S3A8VH neo jno in2
58. Water System 1 Water supply line 1 Increase water line size too small requires 1 2 OD line dedicated per machine 2 Water filter clogged or 2 Replace filter or install a flow rate too small higher flow rate filter e Inlet Water Valve 1 Dirty mesh filter or 1 Clean orifice 2 Diaphragm does not 2 Check for water leaks with close icemaker off f Spray Tubes disconnected IV E Thermistor Check h Hot Gas Valve 2 Plunger does not 2 Replace move 3 Wiring to hot gas 3 Check for loose valve connection or open and replace i Expansion Valve 1 Check and replace j Liquid Line Valve 1 to open 1 Check operation in harvest if applicable harvest cycle cycle and replace Control Board 1 Harvest timer is set 1 Agjust longer referring to too short Il C 3 b Harvest Timer S4 dip switch 1 amp 2 2 Defective 2 See IV B Control Board Check l Refrigerant Charge 1 Low Charge 1 Check for leaks Recover repair evacuate and recharge m Water Regulating Valve 1 Leaking by in harvest 1 Check and replace water cooled model 61 Possible Cause 3 Other a Ice Cube Guide 1 Out of position 1 Place in position b Thermostatic Bin 1 Bulb out of position 1 Place in position Control 2 Bad contacts 2 See IV C Bin Control Check 3 Low Ice Production 1 Freeze cycle time is a Inlet Water Valve 1 Diaphragm does 1 Check for wa
59. a mixture with pressurized air for leak testing 14 Evacuate the system and charge it with refrigerant For air cooled and water cooled models see the nameplate for the required refrigerant charge For remote air cooled models see the rating label inside the icemaker 15 Connect the terminals and replace the terminal cover in its correct position On remote air cooled models connect the crankcase heater 16 Replace the panels in their correct positions 17 on the power supply C Removal and Replacement of Expansion Valve Moisture in the refrigeration circuit may exceed drier capacity and freeze up at the expansion valve 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 valve body and drier by using wet cloths to prevent the valve body and drier from overheating Do not allow the valve body or drier to exceed 250 F 121 C 1 Turn off the power supply 2 Remove the panels 3 Recover the refrigerant and store it in an approved container 4 Remove the insulation and the expansion valve bulb on the suction line 5 Remove the expansion valve cover and disconnect the expansion valve Place the new expansion valve in position 6 Remove the drier then pla
60. acement 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 R 404A as a mixture with pressurized air for leak testing 3 Evacuation and Recharge 404 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 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 66 3 Allow the vacuum pump to pull down to 29 9 Hg vacuum Evacuating period depends on pump capacity 4 Close the low side valve and 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
61. ack F S connector replace CB See Removal and Replacement of Control Board 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 and 2 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 unit from operating correctly and may cause damage For details see C 3 c Pump Out Timer S4 dip switch 3 amp 4 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 for 10 20 seconds depending on pump out timer S4 dip switch 3 amp 4 setting When the pump out timer expires 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 10 cycles For details see Il C 3 d Pump Out Frequency Control S4 dip switch 5 amp 6 Timing of the first pump out is dependent on S4 dip switc
62. 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 expires 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 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 For details see II C 3 d Pump Out Frequency Control S4 dip switch 5 amp 6 S4 Dip Switch Setting Pump Out Nos Nes Freuency OFF Every cycle After 2nd freeze cycle Every 2 cycles After 3rd freeze cycle OFF Every 5 cycles After 6th freeze cycle 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 When ice contacts the thermostatic bulb BC switch open BC shuts down the unit within 10 seconds The bin control is factory set and generally no adjustment is required
63. aker will not operate unless the cleaning valve is completely closed 81 Replace the front panel in its correct position Turn on the power supply to fill the water tank with water 20 21 22 23 24 25 26 27 Turn off the power supply after 3 minutes Remove the front panel and fully open the cleaning valve Move the control switch to the WASH position Replace the front panel in its correct position Turn on the power supply to rinse off the cleaning solution Turn off the power supply after 5 minutes Remove the front panel and the insulation panel Remove the cap located on the front bottom part of the ice dropping hole Drain the water tank Replace the cap and the insulation panel in their correct positions Note Do not replace the insulation panel when you proceed to 2 Sanitizing Procedure 28 Repeat steps 16 through 27 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 that the control switch is in the WASH position and the cleaning valve is o
64. alve 6 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 7 Recover the refrigerant and store it in an approved container 8 Disconnect the condenser water inlet and outlet piping and the refrigeration inlet and outlet piping at the condenser 9 0 1 Remove the old condenser and install the new condenser 10 Remove the drier then place the new drier in position 11 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG s lt 12 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 13 Evacuate the system and charge it with refrigerant See the nameplate for the required refrigerant charge 14 Close the drain valve s Open the condenser water supply line shut off valve If connected to a closed loop water supply also open the condenser return outlet shut off valve 15 Check for water leaks 16 Replace the panels in their correct positions 17 Turn on the power supply 72 H Removal and Replacement of Remote Air Cooled Condenser CAUTION Always instal
65. 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 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 The red POWER OK LED and the green BC CLOSED LED on the CB come on If the yellow BC OPEN LED is on indicating a full bin confirm that the CB K4 jumper is in place If missing the unit cannot operate WARNING 1 Risk of electric shock Use extreme caution and exercise safe electrical practices 2 Moving parts 0 fan blade can crush and cut Keep hands clear 49 3 1 Minute Fill Cycle LED 4 is on WV and X 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
66. c 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 LED 3 X3 Relay Pump Motor PM T on at pump out 88 NN zs harvest if applicable 1 Emp o 1 T 7 10 Component Power 7 5 LED 4 X4 Relay 5 PNG Inlet Water Valve WV Bm ua m FBS at BR E Switch for C control board LED 1 X1 Relay n 310 ALPINE control board Compressor Comp 28 service control board only Fan Motor Remote O 00 QE ames x K2 Connector Transformer Control Board Part Number 2A3792 01 22 2 Features a Maximum Water Supply Period 6 minutes The inlet water valve will be open during harvest for 6 minutes or the length of harvest minus 0 or 50 seconds harvest pump timer S4 dip switch 7 whichever is shorter For details see II C 3 e Harvest Pump Timer S4 dip switch 7 b Harvest Backup Timer and Freeze Timer The harvest backup timer shuts down the icemaker if for two cycles in a row the harvest cycle takes more than 20 minutes to complete The control board will signal this problem using 2 beeps every 3 seconds The freeze timer shuts down the icemaker if for two cycles in a row the freeze cycle take
67. ce the new drier in position 7 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG 68 8 Use an electronic leak detector or soap bubbles to check for leaks Add 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 9 Evacuate the system and charge it with refrigerant For air cooled and water cooled models see the nameplate for the required refrigerant charge For remote air cooled models see the rating label inside the icemaker 10 Attach the expansion valve bulb to the suction line in the same location as the previous bulb The bulb should be at the 10 or 2 o clock position on the tube Be sure to secure the bulb with the clamp and holder and to insulate it 11 Place the expansion valve cover in position 12 Replace the panels in their correct positions 13 Turn on the power supply D Removal and Replacement of Hot Gas Valve or Liquid Line Valve IMPORTANT Always use a copper tube of the same diameter and length when replacing the valve lines otherwise performance may be affected Always replace the strainer when replacing the hot gas valve CAUTION 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 th
68. ded 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 65 2 Brazing WARNING R 404A itself is not flammable at atmospheric pressure and temperatures up to 176 F 80 C 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 Do not use silver alloy or copper alloy containing arsenic 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 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 repl
69. e cleaning valve is used to allow solution flow to the inside of the evaporator during the cleaning and sanitizing operation It should be closed for all icemaking operation The compressor will not operate unless this valve is completely closed To open the cleaning valve the valve handle should be parallel to the valve body To close the valve the valve handle should be at a right angle to the valve body n 1 1 1 I L CLOSED POSITION OPEN POSITION 80 1 Cleaning Procedure 1 Dilute 27 fl oz 800 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc 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 on after 3 minutes The harvest cycle starts and the cubes will be removed from the evaporator Cube Guide Separator 3 Turn off the power supply 4 Remove the front panel and then remove the insulation panel by first removing the thumbscrew lifting up the panel slightly and pulling it towards you 5 Remove the cap located on the front Inside of Ice bottom part of the ice dropping hole Drain Dropping Hole the water tank See Fig 5 6 Replace the cap in its correct position Be Fig 5 careful not to cross thread it Cap 7 In bad or severe water conditions clean the float switch assembly as described below Otherwise continue to step 8 a
70. e new drier with the arrow on the drier in the direction of the refrigerant flow When brazing protect the valve body and drier by using wet cloths to prevent the valve body and drier from overheating Do not allow the valve body or drier to exceed 250 F 121 C 1 Turn off the power supply 2 Remove the panels 3 Recover the refrigerant and store it in an approved container 4 Remove the bolt and the solenoid 6 Place the new valve and strainer if applicable in position 7 Remove the drier then place the new drier in position 5 Disconnect the valve If replacing the hot gas valve also remove the strainer 8 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG 9 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 69 10 Evacuate the system and charge it with refrigerant For air cooled water cooled models see the nameplate for the required refrigerant charge For remote air cooled models see the rating label inside the icemaker 11 Cut the leads of the solenoid allowing enough lead length to reconnect using closed end connectors 12 Connect the new solenoid leads 13 14 Attach the solenoid to the valve body and
71. e old sealant on the Foam Insulation Thermistor Holder thermistor holder and the suction pipe Fig 3 7 Wipe off moisture or condensation on the suction pipe 8 Smoothly apply recommended sealant KE4560RTV Part Code 60Y000 11 or 4A0683 01 to the thermistor holder concave 9 Attach the new thermistor to the suction pipe in the same position as the previous thermistor Be very careful to prevent damage to the leads Secure it using the thermistor holder and recommended foam insulation 10 Secure the insulation using the plastic cable ties 76 11 Connect the white thermistor connector through the bushing of the control box to the control board WHITE connector CAUTION Do not cut the leads of the thermistor 12 Replace the control box cover and the panels in their correct positions 13 Tum on the power supply M Removal and Replacement of Fan Motor air cooled and remote air cooled models Note When replacing a fan motor with defective winding it is recommended that a new capacitor be installed 1 Turn off the power supply 2 Remove the panels 3 Remove the junction box cover from the remote condenser unit remote air cooled model 4 Disconnect the fan motor wires 5 Remove the fan motor bracket and fan motor 6 Install the new fan motor connect the fan motor wires and replace the removed parts in the reverse order of which they were removed 7 Replace the panels in their correct positions
72. els in their correct positions 14 Turn on the power supply 73 Removal and Replacement of Water Regulating Valve water cooled model 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 1 Turn off the power supply 2 Remove the panels 3 Close the condenser water supply line shut off valve If connected to a closed loop water supply also close the condenser return outlet shut off valve 4 Open the condenser water supply line drain valve If connected to a closed loop water supply also open the condenser return outlet drain valve 5 Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve 6 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 7 Recover the refrigerant and store it in an approved container 8 Disconnect the capillary tube at the condenser outlet 9 Disconnect the flare connections of the valve 10 Remove
73. em IMPORTANT This manual should be read carefully before the icemaker is serviced or 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 6 VN 7 7 1 KM 1301SAH air cooledy l ae 7 2 KM 1301SAH3 air cooled c 8 3 KM 1301SWH water cooled ruota erar ht nt tpa eere ridicu Gua cs asian iind 9 4 KM 1301SWH3 water cooled 10 5 KM 1301SRH remote air cooled a 11 6 KM 1301SRH3 remote air cooled 12 am Unik 13 u EN 13 A 15 vereri 15 1 KM 1301SAH 13015 air cooled 15 2 KM 1301SWH 13015 water cooled
74. essure of 3 to 4 PSIG 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 11 Evacuate the system and charge it with refrigerant See the nameplate for the required refrigerant charge 12 Replace the panels in their correct positions 13 on the power supply 71 Removal and Replacement of Water Cooled Condenser CAUTION 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 Turn off the power supply 2 Remove the panels 3 Close the condenser water supply line shut off valve If connected to a closed loop water supply also close the condenser return outlet shut off valve 4 Open the condenser water supply line drain valve If connected to a closed loop water supply also open the condenser return outlet drain valve 5 Attach a compressed air or carbon dioxide supply to the condenser water supply line drain v
75. for leak testing 11 Evacuate the system and charge it with refrigerant For air cooled and water cooled models see the nameplate for the required refrigerant charge For remote air cooled models see the rating label inside the icemaker 12 Replace the removed parts in the reverse order of which they were removed 13 Replace the top insulation and the panels in their correct positions 14 Turn on the power supply 70 Removal and Replacement of Air Cooled Condenser CAUTION 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 Turn off the power supply Remove the panels 3 Recover the refrigerant and store it in an approved container Disconnect condenser inlet and outlet piping Remove the side frame then remove the condenser assembly Remove the shroud from the old condenser and attach it to the new condenser N Install the new condenser assembly then attach the side frame in its correct position Remove the drier then place the new drier in position 9 Braze all fittings while purging with nitrogen gas flowing at a pr
76. h 5 amp 6 settings See the table below S4 Dip Switch Setting Pump Out 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 51 Diagnosis If PM does not reverse check to see if CB 54 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 on CB K1 ten pin connector for voltage harvest pump timer X1 and X2 relays auxiliary code 0 U 0 X10 and X11 relays auxiliary code U 1 and 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 8 Shutdown 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 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 Bin Control Check Legend BC bin control CB control board Comp compressor FM fan motor FMR fan motor
77. heck and replace See thermistor IV E Thermistor Check 2 Sending voltage to 2 Check and replace See liquid line valve if IV B Control Board applicable in harvest Check d Inlet Water Valve 1 Clogged 1 Clean or replace fe Evaporator T Scaled up f Hot Gas Valve 1 Does not open or 1 Check and replace opens partially 9 Expansion Valve 1 Wide open in harvest 1 Check and replace h Water Regulating Valve 1 Open during harvest 1 Adjust or replace See water cooled model V J Adjustment of Water Regulating Valve i Liquid Line Valve if 1 Open during harvest 1 Check and replace applicable cycle 4 Abnormal Ice Possible Cause 1 Small cubes a Pump Out Check Valve 1 Dirty or worn and 1 Clean or replace leaking by b Ice Cube Guide 1 Out of position 1 Place in position Circulated water falls into bin c Water System 1 Water supply line 1 Increase water line size too small requires 1 2 OD line dedicated per machine 2 Water filter clogged or 2 Replace filter or install a flow rate too small higher flow rate filter Inlet Water Valve 1 Dirty mesh filter or 1 Clean orifice d e Pump Motor 1 RPM too slow 1 See chart 1 5 f Control Board 1 Defective 1 See Control Board Check 63 2 Cloudy or irregular 8 Evaporator cubes b Water System 1 Water supply line 1 Increase water line size too small requires 1
78. incoming voltage primary 3 phase does not match move switch to proper incoming voltage setting 2 Coil winding open 2 Replace shorted c Water Supply 1 Water supply off or 1 Check and get pressure too low recommended pressure d Thermostatic Bin 1 Tripped with bin filled 1 Remove Control with ice 2 Ambient temperature 2 Increase ambient too cool temperature 3 Set too warm 3 IV C Bin Control Check 4 Bulb out of position 4 Place in position 5 Bad contacts 5 Check for continuity and replace e Fuse Control Box 1 Blown 1 Check for short circuit and replace Control Switch 1 OFF or WASH 1 Move to ICE position position 2 Bad contacts 2 Check for continuity and replace 9 High Pressure Control 1 Bad contacts 1 Check for continuity and replace 2 Dirty air filter or 2 Clean condenser 3 Ambient or condenser 3 Reduce temperature water temperature too warm 4 Refrigerant 4 Recover evacuate and overcharged recharge 5 Fan not operating 5 See chart 1 7 except water cooled model 6 Refrigerant lines or 6 Clean and replace drier components plugged 7 Condenser water 7 Check and get pressure too low or off recommended pressure water cooled model 1 The icemaker will not h Transformer 1 Coil winding open 1 Replace start continued shorted Wiring to Control Board 1 Loose connections
79. inding be sure to install the new start capacitor and start relay supplied with the replacement compressor Due to the ability of the POE oil in the compressor to absorb moisture quickly the compressor must not be opened more than 15 minutes for replacement or service Do not mix lubricants of different compressors even if both are charged with R 404A except when they use the same lubricant 1 Turn off the power supply 2 3 4 Remove the terminal cover on the compressor and disconnect the compressor wiring On remote air cooled models disconnect the crankcase heater Remove the panels Recover the refrigerant and store it in an approved container 5 Remove the discharge suction and process pipes 6 Remove the hold down bolts washers and rubber grommets 67 7 Remove the compressor Unpack the new compressor package 8 Attach the rubber grommets of the prior compressor to the new compressor 9 Place the compressor in position and secure it using the bolts and washers 10 Remove the drier then place the new drier in position 11 Remove the plugs from the suction discharge and process pipes 12 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG 13 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
80. itial 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 not begin continue to step 10 Turn off the power supply Remove the front panel 10 11 12 Move the control switch to the OFF position 13 Remove the control box cover 14 Disconnect the black float switch connector from the control board BLACK K5 connector 15 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 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 and move the control switch to the OFF position 3 Remove the insulation panel then remove the cap located on the front bottom part of the ice dropping hole Drain the water tank 4 Replace the cap in its correct position Be
81. l 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 2 3 4 5 6 Turn off the power supply Remove the icemaker panels Recover the refrigerant and store it in an approved container Remove the condenser unit panels Disconnect the condenser inlet and outlet piping a Wa gt hf a Remove the screws securing the condenser to the base of the unit then remove the condenser 7 Remove the shroud from the condenser and attach to the new condenser 8 Install the new condenser 9 Remove the drier located in the icemaker then place the new drier in position 10 Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG 11 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 12 Evacuate the system and charge it with refrigerant See the rating label inside the icemaker for the required refrigerant charge 13 Replace the pan
82. lade Water Pump dE UM AL N34 2 Fan Motor Float Switch Compressor 4 7 Bin Control Thermostat Drier Liquid Line Valve Transformer Box Control Switch KM 1301SAH3 15 2 KM 1301SWH KM 1301SWH3 water cooled Spray w Side Service Valve Inlet Water Valve Evaporator Assembly High Side Service Valve Expansion Valves Water Supply Inlet Junction Box Hot Gas Valve 4 Te iil 2 2 ji rN il Check Valves Water Cooled Condenser Cleaning Valve Check Valve water Sy Water Pump Water Regulating Valve Bin Control Thermostat Drier Control Switch Control Box Liquid Line Valve Transformer Box KM 1301SWH3 3 KM 1301SRH KM 1301SRH3 remote air cooled 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 Check Valves l2 v d ELS il iy T Tf D sig M ih Valves Receiver Tank Check Valve water w
83. n the tank This serves as a low water safety to protect the water pump For water cooled model if the condenser water supply is shut off the unit is protected by the high pressure switch e High Voltage and Low Voltage Cut outs The maximum and minimum allowable supply voltages of this icemaker are limited by the high voltage and low voltage cut outs If miswiring especially on single phase 3 wire models causes excessive voltage 147Vac 5 or more the high voltage cut out shuts down the circuit in 3 seconds and the icemaker automatically stops The control board will signal this problem using 7 beeps every 3 seconds The icemaker also automatically stops in cases of insufficient voltage 92Vac 5 or less The control board will signal this problem using 6 beeps every 3 seconds When the proper supply voltage is resumed the icemaker automatically starts running again 23 f LED Lights Audible Alarm Safeties At startup a 5 second delay occurs while the control board conducts an internal timer check A beep occurs when the control switch is moved to the ICE position The red LED indicates proper control voltage and will remain 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 3 2 For details see Sequence of Operation Energized Time LEDs are On
84. ng 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 S4 Dip Switch Setting Time Lor or 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 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 However where water quality is bad and the icemaker needs a longer pump out time the pump out timer can be adjusted The pump out timer control can be set to pump out for 10 or 20 seconds 54 Dip Switch Setting Time seconds ee 4 T2 ON OFF 10 180 closed ON 20 180 closed T1 Time t
85. o 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 5b 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 Pump Out Frequency Every cycle After 2nd freeze cycle O Every 5 cycles After 6th freeze cycle Every 10 cycles After 11th freeze cycle FF Every 2 cycles After 3rd freeze cycle N N 26 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 runs 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 pin DB
86. omp compressor 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 WV inlet water valve 24 3 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 S4 Dip Switch No 1 2 3 4 5 6 7 8 9 10 jorrjorr ON On orr ON OFF 55 Dip Switch Do Not Adjust S5 Dip Switch 1 KM 1301SAH 3 OFF KM 13019WH 3 OFF OFF OFF OFF OFF 1301 OFF OFF 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 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 cleani
87. ooled 48 IV Service U 49 Ai Diagnostic E 49 B Control Board CHECK MN 53 G Bin COMMON CMB Tol u It 54 D Float Switch Check Cleaning 54 UM Float SWINE Tol Pm 54 2 Float CIS MING a 55 Thermistor COCK 9 9 56 Diagnosio uuu uu aaa 57 V Removal and Replacement of Components 65 A Service for Refrigerant Lines c 65 T Refrigerant INBEOVBE 65 za sicca 66 3 Evacuation and Recharge R 404A p 7 66 B Removal and Replacement of Compressor a 67 C Removal and Replacement of Expansion 68 D Removal and Replacement of Hot Gas Valve or Liquid Line Valve 69 E Removal and Replacement of 70 F Removal and Replacement of Air Cooled Condenser 71 G Removal and Replacement of Water Cooled Condenser 72 H Removal
88. or 1 Check for continuity and open replace i j Interlock Switch 1 Open position 1 Move to closed position Cleaning Valve 2 Bad contacts 2 Check for continuity and replace k Thermistor 1 Leads shorted or open 1 See IV E Thermistor and high temperature or harvest backup timer safety operates 1 beep or 2 beep alarm I Hot Gas Valve Continues to open 1 Check for hot gas valve in freeze cycle and stuck open and replace freeze timer safety operates 3 beep alarm m Control board green 1 K4 jumper missing or 1 Confirm jumper is in place BC CLOSED LED Check for continuity off and or yellow BC OPEN LED on n Inlet Water Valve 1 Mesh filter or orifice 1 Clean gets clogged and water supply cycle does not finish 2 Coil winding open 3 Wiring to inlet water valve or open and replace Float Switch 1 Bad contacts replace 2 Float does not move 2 Clean or replace See IV freely D Float Switch Check and Cleaning p Control Board 1 Defective or in alarm 1 See IV B Control Board Check 2 Fill cycle will not a Water Supply 1 Water supply off or 1 Check and get terminate pressure too low recommended pressure b Float Switch 1 Connector 1 Reconnect disconnected 2 Defective switch 2 Clean or replace See IV D Float Switch Check and Cleaning 3 Float does not move 2 Clean or replace See IV freely or switch D Float Switch Check and defective
89. owing at a pressure of 3 to 4 PSIG 9 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 10 Evacuate the system and charge it with refrigerant See the rating label inside the icemaker for the required refrigerant charge 11 Replace the panels in their correct positions 12 Turn on the power supply L Removal and Replacement of Thermistor This section covers removal and replacement of the thermistor For a thermistor check procedure see IV E Thermistor Check IMPORTANT Fragile handle very carefully Always use the recommended sealant high thermal conductive type Model KE4560RTV manufactured by SHINETSU SILICONE Part Code 60Y000 11 or Part Code 4A0683 01 equivalent Always use the recommended foam insulation non absorbent type or equivalent Do not shorten or cut the thermistor leads Turn off the power supply Remove the panels Remove the control box cover Disconnect the white thermistor connector from the control board WHITE K3 connector 5 Remove the plastic cable ties foam insulation thermistor holder and thermistor See Fig 3 1 2 3 4 Thermistor Lead Cable Tie maa 2 N 6 Scrape away th
90. pen 4 Turn on the power supply to start the sanitizing process 5 6 7 Remove the cap located on the front bottom part of the ice dropping hole Drain the water tank Replace the cap and the insulation panel in their correct positions 8 Repeat steps 16 through 27 in 1 Cleaning Procedure two times to rinse thoroughly Turn off the power supply after 15 minutes Remove the front panel and the insulation panel 9 Close the cleaning valve 10 Move the control switch to the ICE position 11 Replace the front panel in its correct position 12 Clean the storage bin using a neutral cleaner Rinse thoroughly after cleaning 13 Turn on the power supply to start the automatic icemaking process 82 B Maintenance Instructions IMPORTANT This icemaker must be maintained individually referring to the instruction manual and labels provided with the icemaker 1 Stainless Steel Exterior 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 build up 2 Storage Bin and Scoop Wash your hands before removing ice Use the plastic scoop provided bin accessory The storage bin is for ice use only Do not store anything else in the storage bin Clean the scoop and the storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 3 Air Filters self contained air cooled models Plastic mesh air filters remove di
91. 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 kO signal from the thermistor and turns harvest termination over to the harvest timer S4 dip switch 1 amp 2 The harvest timer has settings of 60 90 120 and 180 seconds For details see II C 3 b Harvest Timer S4 dip switch 1 amp 2 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 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 II C 3 e Harvest Pump Timer S4 dip switch 7 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 0 or 50 seconds of harvest depending on S4 dip switch 7 setting This circulates water over the evaporator for the last O or 50 seconds of harvest PM is energized through the 5 pin DBu wire on the K1 ten pin connector and the X1 relay auxiliary code 0 U 0 X10 relay auxiliary code U 1 and later When the harvest timer expi
92. 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 WV inlet water valve 52 B 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 with power on Once reset the unit starts at 1 minute fill cycle For audible alarm information see II C 2 f 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 Default Dip Switch Settings 2 Move the control switch to the ICE position If the red POWER LED is on the control voltage is good If the POWER OK LED is off check the control transformer secondary circuit The control transformer secondary circuit includes the cleaning valve interlock switch Make sure the interlock switch is closed otherwise no control voltage is supplied to the K2 connector Transformer output is 10 5V at 115V primary input If the secondary circuit has proper voltage and the red LED
93. res 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 c 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 18 de energize For the first 5 minutes CB will not accept a signal from F S This minimum 5 minute freeze time 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 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 unit from operating correctly and may cause damage For details see Il C 3 c Pump Out Timer S4 dip switch 3 amp 4 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
94. rt 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 self contained and remote air cooled models Check the condenser once a year and clean the coil if required by using a brush or vacuum cleaner More frequent cleaning may be required depending on location C Preparing the Icemaker for Long Storage IMPORTANT When shutting off the icemaker for an extended time drain out all water from the water tank and remove the ice from the storage bin The storage bin should be cleaned and dried Drain the icemaker to prevent damage to the water supply line at sub freezing temperatures using air or carbon dioxide Shut off the icemaker until the proper ambient temperature is resumed When the icemaker is not used for two or three days it is sufficient to only move the control switch to the OFF position unless the icemaker will be at sub freezing temperatures 1 On water cooled models only first remove the water from the water cooled condenser 1 Turn off the power supply and remove the front panel and right side panel 2 Close the condenser water supply line shut off valve If connected to a closed loop water supply also close the condenser return outlet shut off valve 3 Open the condenser water supply line drain valve
95. s longer than the time specified to complete The control board will signal this problem using 3 beeps every 3 seconds The freeze timer is factory set using S4 dip switch 9 amp 10 For details see II C 3 g Freeze Timer 54 dip switch 9 amp 10 The ALARM button on the control board must be pressed with power on to reset either of these safeties c High Temperature Safety The temperature of the suction line in the refrigeration circuit is limited by the high temperature safety This protects the unit from excessively high temperatures If the evaporator temperature reaches 127 F 7 F 53 C 4 C the control board reads a 8 signal from the thermistor and shuts down the icemaker The control board will signal this problem using 1 beep every 3 seconds The ALARM RESET button on the control board must be pressed with power on to reset the safety d Low Water Safety The control board checks the position of the float switch at the end of the initial 1 minute fill cycle and at the end of each harvest cycle If the float switch is in the up position electrical circuit closed the control board changes to the next cycle If the float switch is in the down position electrical circuit open the control board changes to additional 1 minute fill cycles until water enters the tank and closes the float switch When the float switch closes the control board changes to the next cycle The unit will not start without adequate water i
96. storage bin are clean after the unit is serviced For cleaning procedures see Cleaning and Maintenance A Service for Refrigerant Lines WARNING Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA certified service personnel 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 The Polyol Ester POE 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 Do not leave the system open for longer than 15 minutes when replacing or servicing parts 1 Refrigerant Recovery The icemaker is provi
97. tatic Expansion Valve R404A 2 Ib 8 2 oz 11409 High 427PSIG Low 230PSIG High Voltage Cut out Internal Auto reset Overload Protector Internal Auto reset High Pressure Control Switch Float Switch N A Ice Storage Bin VOLTAGE RANGE AMBIENT TEMP WATER SUPPLY TEMP WATER SUPPLY PRESSURE 187 253 V 45 100 F 45 90 F 10 113 PSIG Note We reserve the right to make changes in specifications and design without prior notice 10 5 KM 1301SRH remote air cooled AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY MAXIMUM FUSE SIZE APPROXIMATE ICE PRODUCTION PER 24 HR Ibs day kg day Reference without marks SHAPE OF ICE ICE PRODUCTION PER CYCLE APPROXIMATE STORAGE CAPACITY ELECTRIC amp WATER CONSUMPTION ELECTRIC W kWH 100 lbs WATER gal 24HR gal 100 lbs CEC CEE TIER LEVEL ENERGY STAR EXTERIOR DIMENSIONS WxDxH EXTERIOR FINISH WEIGHT CONNECTIONS ELECTRIC WATER SUPPLY DRAIN CONDENSATE DRAIN CUBE CONTROL SYSTEM HARVESTING CONTROL SYSTEM ICE MAKING WATER CONTROL COOLING WATER CONTROL BIN CONTROL SYSTEM COMPRESSOR CONDENSER EVAPORATOR REFRIGERANT CONTROL REFRIGERANT CHARGE DESIGN PRESSURE BOARD CIRCUIT PROTECTION COMPRESSOR PROTECTION REFRIGERANT CIRCUIT PROTECTION LOW WATER PROTECTION ACCESSORIES SUPPLIED REQUIRED OPERATING CONDITIONS 208 230 60 1 3 wire with neutral for 115V 13 5 5 Min Freeze AT 104 F WT 80 F 20A WATER TEMP
98. ter leaks with long close icemaker off b Float Switch 1 Float switch does 1 Clean or replace See IV not move freely or D Float Switch Check and defective switch Cleaning Evaporator 1 Scaled up 2 Damaged 2 Replace d Spray Tubes e Water Pump 1 RPM too slow 1 See chart 1 5 f Condenser except 1 Air filter or condenser 1 Clean water cooled model clogged 9 Refrigerant Charge 1 Low charge 1 Check for leaks Recover repair evacuate and recharge 2 Out of position 2 Place in position x k Condenser Water 1 Water regulating valve 1 Adjust or replace See water cooled model set too high V J Adjustment of Water Regulating Valve 2 Condenser water 2 Check and get pressure too low recommended pressure 3 Water temperature out 3 Correct to specification of specification 1 Liquid Line Valve 1 Erratic sticking 1 Check and replace m Headmaster C P R 1 Bypassing 1 Replace remote condenser unit n Control Board 1 Float switch 1 Check and reconnect connection loose K5 2 Defective 2 See IV B Control Board Check 62 Problem Possible Cause 2 Harvest cycle time is a Water Supply 1 Water temperature too 1 Increase temperature long cold b Thermistor 1 Out of position or 1 Reattach and secure defective See V L Removal and Replacement of Thermistor and IV E Thermistor Check Control Board 1 Not reading 1 C
99. u wire on the control board K1 ten pin connector and the X1 relay auxiliary code 0 U O 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 III B Wiring Diagrams S4 Dip Switch Setting Pump Motor Time seconde 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 the control board shuts down the icemaker In this case see IV F 3 Low Ice 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 S4 Dip Switch 54 Dip Switch Setting Time No 10 minutes or 6 _
100. 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 switching 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 and move the control switch to the OFF position 3 Remove the insulation panel then remove the cap located on the front bottom part of the ice dropping hole Drain the water tank 4 Replace the cap 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 K5 connector 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 54 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 in
101. val and Replacement of Control Board 53 C Control Check 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 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 bin control is factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations 1 Turn off the power supply 2 Remove the front panel then remove the control box cover 3 Disconnect the thermostatic bin control wires from the thermostatic bin control switch 4 Clear any ice away from the thermostatic bulb then hold your hand around the thermostatic bulb to warm it up 5 Check for continuity across the thermostatic bin control switch If closed continue to step 6 If open adjust or replace the thermostatic bin control 6 With the multimeter test leads still in place hold ice on the thermostatic 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 D Float Switch Check and Cleaning The float switch is

Hoshizaki KM-1301SAH/3 User's Manual

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