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1. 112 34 311HM 33 33 33 33 330 JEHMSIOET WY 33 dd dd 14 EE 39NY50 311HM dd 34 33 33 330 00 17 dd dd 33 34 33 3078 ae t 13001 170 13 i 11198 dl NILLIS 101 271 311 I Tay 1081 D 3 11 113 1103 3 01 ele FJAYOASNYYL 2207 1081302 ASLL 1ndinO lt 3 1 U10JSUE 1 0J uO2 Vy E F mr Fee TERI Fear oon ES pla iS J m 5 H uw 41 1 11 de WW 110 mm Y 2H 1091 10H n l NW T gt 131 D H 321 ENT 33 jJ JLH H EN 9 15014 EN 8 80123 q H el 1 1 7 rT 3 d 1 te 95 7 123 tl l 1091 vl 1 0 3191 0 1511 T 8 80123 11 3401 011 m I KM 1400SWH3 M OlSd 22 786 umno OlSd 2486 ino4no
2. 22 Expansion Valves Check Valve Receiver water Water Pump ID Float Switch Control Compressor Bin Control Thermostat Drier Liquid Line Valve Transformer Box KM 1301SRH Auxiliary Code D 1 and Later and 3 phase model Control Switch Note KM 2500SRH3 Includes Headmaster C P R Model Shown KM 1301SRH3 10 KMH Construction 1 Water Cooled Models 5 3 Inlet Water Valve Spray Tubes High Side Service Valve Thermostatic Expansion Valves Check Valves refrigeration Evaporator Assembly Cleaning Valve Transformer Box 3 phase model Check Valve water Water Pump Float Switch Low Side Service Valve Control Box Control Switch Bin Control Thermostat Model Shown KMH 2000SWH3 High Pressure Switch iz Junction Box le Water Supply Inlet A 4 MJ C eel K Hot Gas Valve I ss il Water Regulating Valve Liquid Line Valve Compressor Tx Drier M Model Shown KMH 2000SWH3 Water Cooled Condenser 11 2 Remote Models SRH 3 AA Spray Tubes
3. 53 4 Pump Out Frequency Control S4 dip switch 5 amp 6 54 5 Bin Control Selector or Harvest Pump Timer Operation 54 dip switch 7 54 Bin Control Selector E Control Board 54 b Harvest Pump Timer G Control 55 6 Factory Use S4 dip switch 8 Ul u a akan aa anak PERICULUM NUR sasa sa 55 7 Freeze Timer S4 dip switch 9 amp 10 PEINE Ege 55 8 Float Switch Selector 55 dip switch 1 G Control Board 56 9 Refill Counter S5 dip switch 2 through 5 Control Board 56 D Control aus ansa 56 IV Refrigeration Circuit and Component Service Information 57 A Refrigeration Circuit Service Information 57 B Component Service 60 C Water Regulating Valve Adjustment water cooled models 61 RADI NI REN eater 62 VI Preparing the Icemaker for Periods of 22 63 au nama akana a a aun 65 EI MEI
4. 5 Joss iduuos duloS 4 26 21 ATT AM Bee peziBieue ep ADH pue sdois dwog uedo sI 4 Jo suedo 84 yoeuo 54 yoeuo 54 lt 54 lt paso 54 28 youms dip rS 041UO9 Ul 1S AIB U 2 yms dip 75 296 02 01 10 104405 8 ueu 295 2 I I lt OL 9 6 uouws dip Humes uun XEN e 10 19 101284 o G 92994 UIN e 9 AM 1114 50915 I9 O 1no duing v 9 o 2 29944 9 o 9 1soAJeH Z eynuiy L lt 91245 3 4 1O SIUL1 U 8 JO 58015 e 9 3 G uouws dip UIOL OZ euun e 19 th Harvest Pump Timer Operation 2 G Control Board w pISUI pue PISINO eui uloq Jezniues pue uedo eje d
5. eee b STR L LIB b storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 6 the front panel its correct I position T Zi C g Fig 7 Float Switch Assembly 63 3 water cooled model remove the water from the water cooled condenser 1 Make sure the power supply is off then remove the front top and right side panels 2 Close the condenser water supply line shut off valve lf connected to a closed loop system also close the condenser return line shut off valve 3 Open the condenser water supply line drain valve If connected to a closed loop system also open the condenser return line drain valve 4 Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve 5 Open the water regulating valve by using a screwdriver to pry up on the spring retainer underneath the spring While holding the valve open blow out the condenser using the compressed air or carbon dioxide supply until water stops coming out 6 Close the drain valve s 7 Replace the right side top and front panels in their correct positions 64 Vil Disposal The appliance contains refrigerant and must be disposed of in accordance with applicable national state and local codes and regulations Refrigerant must be recovered by properly certified service personnel 65 VIII Technical Informati
6. _____ UYOUMS ainsselg UBIH H E e Nd 430 440 430 330 440 N EHMS 00 L WY 340 440 43 440 440 440 430 440 440 N EHMS OO PI YB 13 13 11135 HOLIMS dl 1113 HOLIMS dl ele gordo VIND i Ye IndinO m NN Hel P tae Fe e M i 1I s79 10H I Tu be i oi lori m n el NS 4 39711 74 p Lio o NEL N 1 LT 11014 1 1 n j 17130 219001 e mo land ig 3 T DOM 11 W 13
7. MBC 4 Check MBC wire harness connections See Fig 1 5 Disconnect MBC connector from K4 connector ponn eon Peral 6 Check for continuity across the wires of o Famo 3 onnector connector When the actuator paddle _ for upper unit is not engaged switch is closed Harnes If open check that the wire harness Pin control Connector Cable Connector connector is properly connected and that the actuator paddle is not sticking Clean if necessary See II D 2 b Mechanical Bin Control Cleaning If MBC switch still reads bd Control Board Red K4 Connector open replace MBC Fig 1 7 Press and hold the actuator paddle check for continuity across the wires of MBC connector When the actuator paddle is engaged MBC switch is open If closed check that the actuator paddle is not restricted Clean if necessary See II D 2 b Mechanical Bin Control Cleaning If MBC switch still reads closed replace MBC 8 Reconnect MBC connector to CB K4 connector then move the control switch to the ICE position Turn on the power supply 9 Check that CB green BC CLOSED LED is on 10 Allow the icemaker to cycle on Press and hold the actuator paddle CB yellow BC OPEN LED should turn on and the icemaker should shut down according to the chart below If it does not replace CB Cycle at Mechanical Bin Control Activation Fill Cycl
8. 92 28 KM 2100SRFH13 with URC 22F d r a aaa i baja a l K ancora S Raj 93 29 KM 2500 SW M S uuu uuu a er eee eee 94 30 KM 2500SRH with ES nua bae asas pa satt paa aM Rt aar 95 34 KMH 2000SWH emm E 96 32 KMHI 2000SWFI9 u 97 33 KMH 2000SRH with URC 22F 25 u em entis akan 98 34 KMH 2000SRH3 with URC 22F 99 B Wiring Dia raniS 100 1 and Control Board Schematics without Harvest Pump Timer Relays 100 a KM 1601SWH KM 1601SRH KM 1900S_H 20005 100 b KM 1601SWH3 KM 1601SRH3 KM 1900S_H3 21005 25005 3 20005 H3 ere ere eee er 101 2 Control Board Schematics with Harvest Pump Timer Relays 102 a KM 1301 102 b REV OES o 103 KM 1301SAH and KM 1301SWH D 1 to E 1 104 d KM 1301SRH D 4 to E40 C A a a G l a aR RA a qa 105 e KM 1301SRH E 1 and Later essnee aa 106 107 g KM 1601SAH E 0 and 108 h KM 1601SAH E 1 and Later
9. ENT HN FIN S LOH aH 2E I DEG u j Tol 1081 4 DIT OD MU o OY I _ yt 8 l 1 um i 399170 0553 luk dO N 19778 ae 1 41414 e dinis v BN i i E 11 528 009 ea 3814 pH Yu e 1 L 3 o 1 HMS PU HVSLOEL IAM 95 22 72 umno moana 719 YOUMS JLIH 13101 qu INI 3o m 440 a noa m 44 R 13 5 5 E 5 E 33s IN 18 1113 HOLIMS dl 59811135 HOLIMS 810 i I oH ol E 107 Sul LINA 310 sl ipo L x VIND ASLL Ye AS OL NH h JeuuojsueJ jonuoo lt Jr ET E 3 2 G 071914 BASN A Ha rl cs anular ex i 4 MET jT 3T Li i es Jg H aun 100 9 Fa
10. J J KM 1601SRH KM 1900S_H KMH 2000S_H a KM 1601SWH HYS1O9 1 140 44 dd 33 J n H 50002 43 330 430 44 330 TY 423006 4 H 50061 RM 13 H HYS10 9 I 11135 44 101440144 44 Tk 5109 108 1031 13 330 44 44 1171 ONY HYSTO9 pl E 330 44 340 440 43 44 FS 340 HY OAT HESTOS ii 4 30 440 44 T HMSIO9I 3102 13 11135 HOLIMS dl 108 1041 3 THO 091 E T3004 300434 113 e one 13701 Du 3 7 A T u 4 3 i ASLL 1 AS OL PES pW l 51111 vH JeulojJsueJ ake a I 33 1 i 3118 y Hu U FE ida 0 m uam Se m 9173 TEST 3 f xe 3005 NOT aval omi DI S F i I 91971 33678 oOo q IO Oo q 1 H n EL 11014 mane 30 291 113 1891 33 com T Y WI L _ _
11. f 5 LS T 1 THU 1053 3n D E he y 01 J L 1 TI IL 804 WANIA ALIN h KM 1601SAH E 1 and Later 109 i OISd ZZFZZE 015 225082 umno OISd amp b8e __ S epo N pue EPON YOUMS eunsseJg uDiH MOTA A M 14 11 330 440 ERES LOEL A R J40 140 440 440 440 E H SUE I 013401 220 b 18 MERE I u i NOME 135 di NILL3S HOLIMS dl B 1 3902 80102 ig ele ji MIR TRND ASLL Ye AS OL 1ndino L ET rdg a Li 4 j yu S p 1 5 1011 c R 15 R e n 3504 Tol o mm dl 5 eseud 0
12. 49 n T P un N3349 9 3 Bu m 3n78 HYVA B 058 LL i END m r PT 1 DI 8002 40702 3MIM p y e n T i buses e a WS 101 AS tl 11 4 JNT E xe ar I aum 17 YOE TOU cte Mv 09 Q 3 le a d EST 108110 NIE I lt T re Ji 101 th Harvest Pump ICS WI 2 G Control Board Schemat OISd 22 2 0189 22782 umno 9159 z cLy OlSd 24985 S polN OPON YOUMS INSS Id YDIH 330 340 _ HYSTOEI WNY Ji HIISIO I WY J 1401440 EE j HYSIOEI NY 13 1 1 V 1 113 d TN av BNIS M ee Boos o0 72s 3002 40102 3MIM _ TAON 3103 ig 7 ele ie EE Tu i
13. VOLTAGE 208 230 60 1 3 wire with neutral 115V 14 4 5 Min Freeze 104 WT 80 F MINIMUM CIRCUIT 30 MAXIMUM FUSE SIZE 30 A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2670 4 1 2480 3 2 WATER gal 24HR gal 100 Ibs 293 18 8 579 31 0 ICE PRODUCTION CYCLE 45 3 165 20 5 kg 2160pcs REFRIGERANT CHARGE R404A 4 Ib 10 1 oz 21009 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 18 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 23 800 BTU h AT 90 F 32 WT 70 F 2190 84 20 19005 SPECIFICATION SHEET VOLTAGE 208 230 60 3 8 59 5 Min Freeze 104 F WT 80 MINIMUM CIRCUIT 20 MAXIMUM SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2610 4 1 2510 3 2 WATER gal 24HR gal 100 Ibs 260 17 0 548 29 5 ICE PRODUCTION PER CYCLE 45 5 Ibs 20 6 2160pcs REFRIGERANT CHARGE R404A 4 Ib 10 1 oz 21009 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEM
14. pH y 1 1904 ee M NI 5 11 ii 1 HS LOS L WM P 1 yl t 301310 TANGY 0 1 WC ui magaria 103 c 13015 KM 1301SWH D 1 to E 1 OISd 22 2 18 22782 umno OISd 2 217 96 24086 nono S polN YOUMS INSS Id UDIH 104 118 13101 53 53 53 dd 33 dd dd 34 340 HMSLOEL WY IN 3ONVMH 44 ad 53 EE HVS LOEL WOI J4 44 44 390 HyS OEL yy e 3018 MYY 113 HOLIM SONTLLAS HOLIN 1071 900 02001 91 4 3L H 310 M L 1 Koodo gt i VIND 7 7 5 gt i NS 01 1NI PISA na B I yy x 7 k Tes
15. AY 440 310 44 430 430 330 44 V HH 1SJAUVH 13 11 m lt gt E ED pl i y p K Loyal O pH y a 1 H 1073 14 TE Y LHL TEM Dri 107 2 4026 OlSd 22 086 umno TIJA 1LIMM OlSd 217 22986 inona 131014 440 440 130 130 HYS 091 S poN pue japon L n epo 330 130 13 110 330 11991091 39NYUO YOUMS einsseig u6iH 13 11135 3018 1081 118 13 10112381 365 3 n 713 INI L 151 8 18 la 531242 FTdILINN ba 00 i NI 371 i YOLON INVLYOdNI AS OLINdINO jeuuoJsueJ J gt qha 11 2 F F 11 n B 50 VN J ey 9c m P 11 1 000 mil 19 I U H M F 8 We eR 55 V E qll iia s q E
16. 3b Mechanical Control Shutdown 22 Service Diagnosis WARNING e The appliance 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 Control switch in OFF position does not de energize all loads Use extreme caution and exercise safe electrical practices e Moving parts fan blade can crush and cut Keep hands clear Before servicing the appliance move the control switch to the OFF position and turn off the power supply CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after the appliance is serviced Make sure that none have fallen into the dispenser unit ice storage bin Make sure all food zones in the appliance and dispenser unit ice storage bin clean after service The diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components Before proceeding check for correct installation proper voltage per nameplate and adequate water supply Check CB using the steps in Control Board Check Check dip switch settings to assure that S4 dip switch 3 4 7 8 9 10 and 5 dip switch 1 through 5 G CB are in the factory default position 54 dip switch 1 2 5 6 are cleaning adjustments and the settings are flexible For factory default settings see 1 Default Dip Switch Set
17. 109 i KM 1301S H3 FO u u aE AREE EA 110 j 13015 U 1 to E 0 and 16015 0 to 0 111 13015 1 and 16015 E 1 and 112 N KM 1400SWH3 M s M 113 Important Safety Information Throughout this manual notices appear to bring your attention to situations which could result in death serious injury damage to the appliance or damage to property WARNING Indicates a hazardous situation which could result in death or serious injury NOTICE Indicates a situation which could result in damage to the appliance or property IMPORTANT Indicates important information about the use and care of the appliance WARNING The appliance 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 cannot be held responsible for injury or damage resulting from improper incorrect and unreasonable use Failure to service and maintain the appliance in accordance with this manual will adversely affect safety performance component life and warranty coverage and may result in costly water damage To reduce the risk of death electric shock serious injury or fire follow basic precautions including the following Only qualified service technicians should install
18. Compressor i High Pressure Thermostatic Bin Control Liquid Line Valve Transformer Box KM 1301SAH Auxiliary Code D 1 and Later and All 3 phase model Control Switch Model Shown KM 1301SAH3 2 Water Cooled Models SWH 3 M Spray Tubes Inlet Water Valve Evaporator Assembly Low Side Service Valve High Side Service Valve Thermostatic Expansion Valves Water Supply Inlet Junction Box Hot Gas Valve Check Valves refrigeration Water Cooled Cleaning Valve Condenser Check Valve water Water Pump Float Switch Water Regulating Compressor Valve Bin Control Thermostat Drier Control Box Control Switch Liquid Line Valve Transformer Box KM 1301SWH Auxiliary Code D 1 and Later and All 3 phase model Model Shown KM 1301SWH3 3 Remote Models SRH 3 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 refrigeration Cleaning Valve Il 2 L 1 A HITS lt ia T Thermostatic
19. 1601 with URC 21F Auxiliary Codes 0 R 1 and some 5 1 This applies to units with 8 I min water valve The 8 water valve is part number 3U0111 02 and has J248 032 stamped on the side of the valve facing the rear of the unit SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 7 9 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2580 4 3 2450 3 7 WATER gal 24HR gal 100 Ibs 261 17 9 504 31 6 ICE PRODUCTION PER CYCLE 29 4 Ibs 13 3 kg 1440 pcs TOTAL REFRIGERANT CHARGE R404A 24 Ib 14 6 oz 113009 REFRIGERANT CHARGE BY UNIT Icemaker 15 Ib 3 4 oz Cond Unit 9 Ib 11 2 oz PERFORMANCE DATA SHEET APPROXIMATE ICE 208 230 60 3 3 WATER TEMP F C PRODUCTION PER 24 HR wire with neutral 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 24 300 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 90 F 32 C WT 70 F 21 CONDENSER VOLUME 441 CU IN URC 21F 81 17 KM 1601SRH3 with URC 21F Auxiliary Codes some 5 1 and 5 2
20. y JO PISINO y Jezniues pue eui pasoj eA eA Bulue o5 YUM eui si amod uonisod HSVM 94 U ueuM eui pue Burueejo pesn sI uo uonisod HSVM 941 UONISOd HSVA 991 SI 9 2 A11 HVS L09L INM uo senunuoo NJ peziB1eue ep IN 99 02 01 10 ueui 098 2 10 21 peziBieue 7 pezibieue 11 senunuoo senunuoo Sonunuoo YIN Pos 221 s sites senunuoo dwog 10 su do 4 lt SJ u S4 101000 9 uouws dip bS 095 06 01 10 S SI A I 295 Z 10 58015 e 9 G uouws dip 75 I 01 9 6 uouws dip 75 6um s 92994 92994 XEN e ulUJ G 92994 UIN e 10 195 10 0BJ e 1 5 1no duing r ajoAQ 929914 uonisod 391 eui ui peoeld si uos BU U UM 114591 JOU IM HUN BU eyejduioo Burzniues pue Jaye eA eA 95010 910 y JO II UIW L 01 SuunjeJ ejoAo pue 54015 dwog u do si 4 uedo 54 s
21. 0 1 epoo ueiiixny 110 j KM 1301S_H3 U 1 to 0 and KM 1601SAH3 0 to 0 OISd 65 56 224084 umno OISd 25786 no no S poN U91IMS 33 33 340 33 CHY Iul CHY 719 10 T 440 130 1 440 110 44 NY 340 430133 340 44 EHM Y NOAH i cH S L0 1 HYS 106 Y Hd 5 1300 13 1113 211 11135 HOLI Boy 1 1 310088 FAMOASNTYL TUM ASLL 1 UJIOJSUEIJ es PLE J c PES m S i yl 11 d IS 19013 1 F il Ha y 1 1 13101A ady 3ONvUO 40702 FYIM 111 k 13015_ 1 and 16015 1 and Later OISd 65 56 224086 umno OISd zy 25786 mono Sepon pue japo YMS inss uq uBiH
22. Control Board Check Before replacing CB 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 CB is in alarm beeping press the ALARM button while CB is beeping WARNING Risk of electric shock Care should be taken not to touch live terminals Once reset the icemaker starts at the 1 minute fill cycle For audible alarm information see LED Lights and Audible Alarm Safeties 1 Check the dip switch settings to assure that S4 dip switch 3 4 7 8 9 10 and S5 dip switch 1 through 5 G CB are in the factory default position 54 dip switch 1 2 5 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 control voltage is good continue to step 3 If the POWER LED is off check CT secondary circuit CT output is 10 5VAC at 115VAC primary input If the secondary circuit has proper voltage and the red LED is off replace CB Ifthe secondary circuit does not have proper voltage check CT primary circuit Check for 115VAC at CB K1 connector pin 10 BR to neutral W for 115VAC Always choose a white W neutral wire to establish a good neutral connection when checking voltages For additional checks see II G 1 I
23. 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 R 404A 1 Attach a vacuum pump to the system Be sure to connect the charging hoses to both high and low side refrigerant access 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 3 Allow the vacuum pump to pull down to a 29 9 Hg vacuum Evacuating period depends on pump capacity 58 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 the required refrigerant charge see the rating label inside the icemaker Hoshizaki recommends only virgin re
24. lt 00 g 8 E S o Alarm Buzzer R51 R2 _ zm 5 le R 9 JE E Part Number Q FOWER black Connector red lights when Float Switch 10 5VAC is supplied water level to K2 connector 36 _ We r Relay LEDs E BO Microprocessor 4 indicate which M3 Meri E control board revision relays are energized B S 5 level indicated on label and which K1 on side of relay connector pins are c MESE o energized RS 1 R7 x3 ST LED 2 X2 Relay 0 so S eie Pins 1 through 10 LED 2 on eo 1 9 Magnetic Contactor or K1 Connector Pin 2 mo 2 s DASS Compressor Relay LED 2 off 219 2 Hot Gas Valve K1 Connector Pin 3 memo p iis 3 Fan Motor S ei Liquid Line Valve LED 3 X3 Relay i E o ere gt 4 Pump Motor icemaking LED 3 212 5 Pump Motor pump out K1 Connector Pin 5 sby gt o o 6 Inlet Water Valve LED 3 off f 267 Rs a x 7 7 10 Component Power K1 Connector Pin 4 9 Suppl 046 R46 pply energized in freeze 8 LED 4 X4 Relay A a K1 Connector Pin 6 us RIT X Switch for C control board and ALPINE control board service control board only e LED 1 X1 Relay Set to ALP for appliances K1 Connector Pin 1 9 K2 Connector covered in
25. 82 18 KM 1601SRH3 with URC 22F Auxiliary Codes 5 2 and Later This data applies to units with 11 l min water valve 11 l min water valve is either part number 4A1176 04 or 4A5251 04 and has the part number stamped on the side of the valve facing the front of the unit SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 7 9 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2780 4 46 2490 3 90 WATER gal 24HR gal 100 Ibs 348 23 2 704 46 0 ICE PRODUCTION PER CYCLE 32 1 Ibs 14 6 kg 1440 pcs TOTAL REFRIGERANT CHARGE R404A 22 Ib 14 8 oz 104009 REFRIGERANT CHARGE BY UNIT Icemaker 15 Ib 3 4 oz Cond Unit 7 Ib 11 5 oz PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 26 400 BTU h 90 F 32 C WT 70 F 219 TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 500 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 214 CU IN URC 22F 83 19 19005 SPECIFICATION SHEET
26. Relay Liquid Line Valve LED 3 on lt io 4 Pump Motor icemaking K1 Connector Pin 5 is 5 LED 3 off harvest pump timer K1 Connector Pin 4 pump out energized in freeze j gt 6 Inlet Water Valve e 7 10 Component Power LED 4 X4 Relay Supply K1 Connector Pin 6 55 8 LED 1 X1 Relay K1 Connector Pin 1 9 K2 Connector Control Transformer 10 5VAC G Control Board Part Number 2A3792 01 48 LED Lights and Audible Alarm Safeties 1 Control Board At startup a 5 second delay occurs while the control board conducts an internal timer check occurs when power is turned off The red POWER LED indicates proper control voltage and remains on unless a control voltage problem occurs The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below Note that the order of the LEDs from the outer edge of the control board is 1 4 3 2 Energized Time LEDs are On Components 4 p 3 2 Min 1 Minute Fill Cycle 4 WV 2 minutes Harvest Cycle Comp FMR HGV WV 2 minutes 3 to 5 minutes Freeze Cycle 1 Comp FM FMR PM 5 minutes freeze timer 30 to 35 minutes LLV setting Pump Out Cycle 1 4 Comp FMR HGV PM 10 seconds 20 seconds pump out timer WV setting The built in safeties shut down the icemaker and have al
27. VEU 1 el JE 1 1 i 3 104 LN 211 5 21005 b KM 1601SWH3 KM 1601SRH3 19005 OISd 22 26 OlSd 220864 umno OlSd 2521 Olsd 24086 imona jepoyy YHMS inss uq uBiH 11 30 140 140 440 330 44 1 HYS 0002 HN 33 aay s 1 H HMS 000Z HWY m H S00S AM H 440 440 440 440 440 n ij 446 130 336 35044 jy 1 0061 EHUSTOS 24 05109 I 340 330 330 430 330 33 IST Ov FS 13 330 440 430 430 440 430 440 NO 43 FS 3405 ROU EHUSI 1113 HOLINS c 330 1440 134 NO ddo 130 30 44 100 101 3002 10 13 03100 41 11138 HOLIMS dl 108 Wel ele m 0000 t L MOTIAA TUN Sey the JLIHM M 1ndino r Fo jr 7 m EA d 49ULJOJSUEJ OJ UOO lt h HE Wid d un M _ a m 390 0 IY EP
28. nun ntah jin va pai E ERO EHE kau ee 14 2b Stacked Mechanical 14 D Water Refrigeration Circuit Diagram 15 1 Ai Cooled 15 2 Water Cooled Models SWH 93 M a 16 Remote Models SRH 3 Except 250058 17 ab Remote Models SRH3 KM 2500SRH3 18 Sequence of Operation and Service 19 A Sequence of Operation Flow ChaltL 19 1 Control Board without Harvest Pump Timer Operation 19 2 Control Board with Harvest Pump Timer Operation 20 Thermostatic Bin Control Shutdown 21 3b Mechanical Bin Control Shutdown 22 B Service Diagnosis 23 1 E Control Board without Harvest Pump Timer Diagnosis 24 2 Control Board with Harvest Pump Timer Diagnosis 29 C Control Board uuu
29. I 5 P9 ws non F IR V aH T 051 5 n 113 d a E 17 i 701407 118 o KN 381 OISd 22 26 224086 umno OISd Olsd 25086 S epo N POW Uo1IMS eunsseJg uBiH FY ILIHM 101131 440 440 440 440 440 85101 44 330 440 33 440 440 IOYE JLIHM YE J4 5 R HERE IVIE 31IHM 671 INId ILLIS 1113 HOLIN 39NY80 3714 wuvd na 1 531 1 INJ 801 vd NOTINALLY a E 2778 we Tae D ele Wide 0112481 onf 3 vids 3ibio4S LL 5 0000 M i ASLL 1 AS OL e 8n YT y ES 1 1 1 1 tp m i ar n aM 13711 Te K HSY 21 HSYAT O 139 1 T 33 5 33 M
30. If 115VAC is not present check for 115VAC at CB K1 7 BR or 10 BR to neutral W If 115VAC is present at 7 BR or 10 BR and not at 1 V or 9 V replace CB If 115VAC is present check for 115VAC at CR or MC solenoid If 115VAC is present confirm contacts are closed If not replace CR or MC If CR or MC contacts are closed check Comp external overload Comp start and run capacitors Comp start relay and Comp motor winding If Comp is energized and evaporator is not warming check that HGV energizes and opens Check for 115VAC at CB 1 2 P to a neutral W If 115VAC is not present and LED 2 is on replace If 115VAC is present check coil voltage and continuity Replace as needed Confirm that LLV is de energized and closed not bypassing If energized replace CB If de energized and bypassing replace Confirm WRV is not leaking by If evaporator is warming PM energizes for the last 50 sec of harvest b HGV Diagnosis If Comp is energized and evaporator is not warming check that HGV energizes and opens Check for 115VAC at CB K1 2 P to neutral W If 115VAC is not present replace CB If 115VAC is present check for 115VAC at HGV coil and check HGV coil continuity Replace as needed c LLV Diagnosis Confirm that LLV is de energized and closed not bypassing If energized replace CB If de energized and bypassing replace LLV d WRV Diagnosis Confirm WRV is not leaking by 5b Harvest Pump Timer
31. LEDs 1 3 and 2 are on When the thermistor reaches 48 F 9 C CB reads 3 9 kO from the thermistor and turns harvest termination over to the harvest timer S4 dip switch 1 amp 2 50 sec before the harvest timer terminates LED 3 turns on and PM energizes Comp FMR HGV and X10 relay continue LED 4 turns off WV and X11 relay de energize Diagnosis Place a thermometer on the suction line next to the thermistor Has it warmed to 48 F 9 C or warmer Confirm thermistor status See Thermistor Check If the thermistor reading is in proper range dip switch 7 is on and PM does not energize 50 sec before harvest terminates replace CB If WV continues check for 115VAC at CB K1 6 If 115VAC is present and LED 4 is off replace CB If LED 3 is on and PM is not energized check for 115VAC at CB K1 5 DBU If 115VAC is not present replace CB If 115VAC is present and PM is not energized check for 115VAC at X10 relay terminal 7 Y to neutral W If 115VAC is not present check for 115VAC at X10 relay terminal 3 P to neutral W and X10 relay terminal 5 Y to neutral W 30 If 115VAC is present on terminal 3 P and not on terminal 5 Y replace X10 relay If 115VAC is present on X10 relay terminal 7 Y and PM is not energized check for 115VAC at X10 relay terminal 4 R to neutral W and terminal 46 DBU to neutral W If 115VAC is present on terminal 6 DBU and not on terminal 4 R replace X10 relay
32. 9 Replace the control box cover in its correct position 10 Turn on the power supply to start the automatic icemaking process 11 Replace the front panel in its correct position Legend MBC mechanical bin control KM xxxxS_H 3 Bracket Switch Mount Actuator Paddle Bin Control Bin Control Proximity Proximity Switch Switch Closed Open bin full calling for ice icemaker off or shutting down MBC Connector Float Switch Check and Cleaning FS is used to determine that there is sufficient water in the water tank after the 1 min fill cycle and after each harvest cycle FS 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 FS follow the steps below 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the insulation panel then remove the drain plug located on the lower front part of the ice chute See Fig 3 Allow the water tank to drain 4 Replace the drain plug in its correct position Be careful not to cross thread it 5 Remove the control box cover Drain Plug Cleaning Valve 6 Disconnect FS connector from CB I b K5 connector H 7 Check for continuity across FS leads With b
33. 2 Check discharge line temperature For a thermistor check see Thermistor Check If 1 min fill cycle starts after harvest timer terminates check that FS is clean and operating properly See Float Switch Check and Cleaning If FS is closed CB proceeds to the next cycle If not replace CB Note The min total time allowed by CB for a complete harvest cycle is 2 min Max harvest time allowed is 20 min NOTICE On models with G control board and no harvest pump timer relays S4 dip switch 7 must remain off Otherwise PM energizes in reverse direction the last 50 seconds of harvest and empties water from water tank 6 Freeze Cycle LED 1 is on Comp and FMR continue FM and LLV energize WV and HGV de energize Appliance is held in freeze by a 5 min short cycle protection timer After 5 min timer terminates and FS opens freeze cycle terminates Freeze Cycle Diagnosis Confirm Comp and FMR continue Confirm that PM FM and LLV energize Confirm WRV opens Next confirm WV and HGV de energize During the first 5 min of freeze confirm evaporator is cooling If not confirm WV de energized not leaking by HGV de energized not bypassing LLV and FM energize TXV and HM operate correctly WRV opens Comp is efficient and refrigerant charge is correct See VIII A Specification and Performance Data 25 b Comp and FMR Diagnosis If Comp and FMR de energize once freeze begins check that applian
34. If 115VAC is present on X10 relay terminal 4 R check control switch contact continuity between terminals 4 R and 5 R If contacts are open replace control switch If contacts are closed and 115VAC is present between control switch terminal 5 R and neutral W check PM capacitor and motor winding continuity 5c Initial Harvest Cycle Termination Diagnosis When the thermistor reaches 48 F 9 C CB reads 3 9 kO from the thermistor and turns harvest termination over to the harvest timer S4 dip switch 1 amp 2 Check discharge line temperature For a thermistor check see Thermistor Check If 1 min fill cycle starts after harvest timer terminates check that FS is clean and operating properly see Float Switch Check and Cleaning If FS is closed CB proceeds to the next cycle If not replace CB Note The minimum total time allowed by CB for a complete harvest cycle is 2 min Maximum harvest time allowed is 20 min NOTICE S4 dip switch 7 must remain on Otherwise PM will not energize during the last 50 sec of harvest 6 Freeze Cycle LED 1 is on Comp FMR and PM continue FM and LLV energize HGV and X10 relay de energize Appliance is held in freeze by a 5 min short cycle protection timer After 5 min timer terminates and FS opens freeze cycle terminates Note PM power supply switches from CB K1 5 in harvest to K1 4 R in freeze a Freeze Cycle Diagnosis Confirm Comp FMR and PM cont
35. TOTAL HEAT OF REJECTION FROM CONDENSER 26 600 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h 90 F 32 C WT 70 F 21 C WATER FLOW FOR CONDENSER 111 gal h AT 100 F 38 C WT 90 F 32 PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 97 33 KMH 2000SRH with URC 22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral 115V AMPERAGE 14 9 5 Min Freeze 104 F WT 80 MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2680 3 8 2570 3 2 WATER gal 24HR gal 100 Ibs 307 18 1 570 29 3 ICE PRODUCTION PER CYCLE 47 7 lbs 21 6 2160pcs TOTAL REFRIGERANT CHARGE R404A 16 Ib 1 5 oz 73009 REFRIGERANT CHARGE BY UNIT Icemaker 8 Ibs 6 oz Cond Unit 7 Ibs 11 5 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 27 600 BTU h AT 90 F 32 WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 300 BTU h AT 90 F 329 WT 70 F 21 C CONDENSER
36. Yu I Ni M DI o 31 4 um T 1991101 i Ll ker pes w fe 7 1 1 xF pn 17073 meet H d 1 1 01 2503 4 Toul 1 1 d KM 1301SRH D 1 to E 0 0 3 9 HYS LOEL IAM 105 ASLL 3 AS OL 1ndinO JeuuojsueJ e KM 1301SRH E 1 and Later 33 330 33 330 31 nz a TIE jd 10H 3 1 1 95 22206 umno eiv no no YHMS eunsseJg uBiH 33 53 Jaye pue 3 HYS LOS L NM 106 f KM 1400SWH M ASLL J8UJ10JSU9J 01 U09 Olsd 225786 umno OlSd 24086 no no _____ 5 UIN YT
37. control transformer Comp compressor valve FM fan motor FMR fan motor remote FS float switch HGV hot gas valve HM headmaster C P R HPS high pressure switch LLV liquid line valve contactor transformer PM pump motor TBC thermostatic bin control TXV thermostatic expansion valve WRV water regulating valve WV inlet water valve 28 2 Control Board with Harvest Pump Timer Diagnosis 3 Power On Turn on the power supply then move the control switch to the ICE position 5 sec delay occurs CB red LED and green CLOSED LED turn on yellow BC LED 1 on check jumper Note CB red POWER LED remains on unless the 10 5VAC power supply is interrupted K2 connector e Check CB using the steps in Control Board Check Confirm CB green BC CLOSED LED is on If CB yellow BC OPEN LED is on confirm CB jumper is in place Otherwise CB yellow BC OPEN LED is on and appliance will not start a Power On Diagnosis If CB red POWER LED is off confirm 10A fuse is good Check for 115VAC at control switch 1 BR or BK to neutral W then at control switch 2 P to neutral W If 115VAC is present on 1 BR or BK and not on 2 P replace control switch If 115VAC is present on control switch 2 P check for 115VAC at HPS P to neutral W then HPS BK to neutral W If 115VAC is present
38. or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety e Children should be properly supervised around the appliance Do not climb stand or hang on the appliance or allow children or animals 10 do so Serious injury could occur or the appliance could be damaged e Do not use combustible spray or place volatile flammable substances near the appliance They might catch fire e Keep the area around the appliance clean Dirt dust or insects in the appliance could cause harm to individuals or damage to the appliance Additional Warning for Remote Models THE REMOTE CONDENSER UNIT MUST BE GROUNDED The power supply and ground connection to the remote condenser unit are supplied from the icemaker Failure to properly ground the remote condenser unit could result in death or serious injury Wire routing conduit and disconnect if required 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 damage e Move the icemaker control switch to the OFF position and turn off the power supply to the icemaker before servicing the remote condenser unit Lockout Tagout to prevent the power supply from being turned back on inadvertently NOTICE Follow the instructions in this man
39. the water tank empty FS should be open If open continue to step 8 If closed follow the steps in II E 2 Float Switch Cleaning H g After cleaning FS check it again necessary 8 Reconnect FS connector to CB K5 Ice Chute connector then replace the control box Fig 3 cover in its correct position 9 Move the control switch to the ICE position Replace the insulation panel and front panel in their correct positions then turn on the power supply After 1 min the 1 min fill cycle should end and the initial harvest cycle should begin lf the initial harvest cycle begins FS is good and the check is complete If the initial harvest cycle does not begin continue to step 10 Float Switch Assembly 10 Turn off the power supply 11 Remove the front panel Move the control switch to the OFF position 12 13 Disconnect FS connector from CB K5 connector 14 Check for continuity across FS leads With the water tank full FS should be closed If FS is closed and the icemaker will not switch from the 1 min fill cycle to the initial harvest cycle replace CB If FS is open confirm that the water tank is full lf the water tank is not full check the water
40. 27 601 594 544 90 32 600 590 945 Ibs day kg day 100 38 584 579 503 APPROXIMATE ELECTRIC 70 21 CONSUMPTION 80 27 90 32 watts 100 38 APPROXIMATE WATER 70 21 80 27 90 32 gal day 3 100 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 cm2G 100 38 SUCTION PRESSURE PSIG kg cm2G 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 69 5 KM 1301SRH with URC 14F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V or 208 230 60 1 AMPERAGE 13 5 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2090 4 1 2010 3 6 WATER gal 24HR gal 100 Ibs 203 16 6 479 35 4 ICE PRODUCTION PER CYCLE 31 11bs 14 1 1440pcs TOTAL REFRIGERANT CHARGE R404A 10 165 5 8 oz 47009 REFRIGERANT CHARGE BY UNIT Icemaker 5 Ibs 15 2 oz Cond Unit 4 Ibs 6 5 oz PERFORMANCE DATA APPROXIMATE ICE AMBIENT TEMP EPC 70 21 80 27 90 32 Ibs day kg day 100 38 APPROXIMATE ELECTRIC 70 21 CONSUMPTION 80 27 90 32
41. 31 WV and HGV Diagnosis If WV is energized check for 115VAC at 1 6 to neutral W If 115VAC is present after PM energizes in harvest cycle replace CB If 115VAC is not present replace WV bypassing If HGV did not de energize at the end of harvest check for 115VAC at CB K1 2 P to neutral W If 115VAC is present 50 sec after PM energizes replace CB If 115VAC is not present replace HGV bypassino d PM Diagnosis Confirm water is flowing over evaporator from PM and not WV If PM de energizes once freeze begins check for 115VAC at CB K1 4 R to neutral W If 115VAC is not present replace CB If 115VAC is present and PM is de energized check for 115VAC at control switch 5 R to neutral W If 115VAC is present at CB K1 4 R and not at control switch 5 R check control switch continuity between 5 R 4 R Replace as needed If 115VAC is present at control switch 5 R to neutral W check PM capacitor and motor winding continuity e FM and LLV Diagnosis If FM or LLV does not energize check for 115VAC at CB K1 3 BK to neutral W If 115VAC is not present replace CB If 115VAC is present For FM check capacitor motor winding and blade for binding LLV check coil voltage and continuity f Refrigerant Pressures HM and TXV Diagnosis evaporator is still not cooling check refrigerant pressures See VIII A Specification and Performance Data Next check HM operation If
42. 70 F 70 50 F ELECTRIC W kWH 100 lbs 2790 4 09 2500 3 23 WATER gal 24HR gal 100 Ibs 328 20 0 609 32 8 ICE PRODUCTION PER CYCLE 46 lbs 20 9 kg 2160pcs TOTAL REFRIGERANT CHARGE R404A 21 Ib 7 9 oz 97509 REFRIGERANT CHARGE BY UNIT Icemaker 13 Ibs 12 5 oz Cond Unit 7 Ibs 11 5 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 26 500 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 214 CU IN URC 22F 89 25 KM 1900SRH3 with URC 21F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 11 0 A 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2840 4 1 2680 3 3 WATER gal 24HR gal 100 Ibs 332 20 0 590 30 0 ICE PRODUCTION PER CYCLE 46 5 Ibs 21 1 2160pcs TOTAL REFRIGERANT CHARGE R404A 23 Ib 7 7 oz 106509 REFRIGERANT CHARGE BY UNIT Icemaker 13 Ibs 12 5 oz Cond Unit 9 Ibs 11 2 oz P
43. Hot Gas Valve WEN 42 a i 11 Inlet Water Valve 5 Production Possible Cause 15 Thermistor Loose disconnected defective Thermistor Check 16 Pump Motor a Motor winding open b Bearing worn out or locked rotor c Defective capacitor Mechanical seal worn out 17 Thermostatic Expansion Valve Bulb loose 45 18 Liquid Line Valve a Closed in freeze cycle 19 Fan Motor b Bearing worn out or locked rotor 20 Water System a 2 Freeze Up Defrost and clean the icemaker prior to diagnosing freeze up Fill out a freeze up checklist See the Hoshizaki America Technician s Pocket Guide or contact your local distributor for a copy of the freeze up checklist 1 Evaporator 2 Cube Guides 3 Spray Tubes and or Spray Guides 4 Water Suppl c Insufficient water line size Minimum 3 8 Nominal ID 10 mm Nominal OD in the EU copper water tubing or equivalent 5 Inlet Water Valve a Screen or orifice clogged b Defective 6 Float Switch a Dirty sticking Float Switch Check b Defective and Cleaning 7 Refrigerant Charge a Low 8 Control Board a Harvest timer 54 dip switch 1 amp 2 set too short Control Board b Harvest pump timer S4 dip switch 7 not in factory default position Check III C Settings G control board Adjustments
44. SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V AMPERAGE 15 0 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2630 4 70 2450 4 03 WATER gal 24HR gal 100 Ibs 228 17 0 709 48 5 ICE PRODUCTION PER CYCLE 31 4 Ibs 14 3 kg 1440 REFRIGERANT CHARGE R404A 3 Ib 12 5 oz 17159 PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT REJECTION FROM CONDENSER 20 700 90 F 32 C WT 70 F 2190 74 10 16015 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 12 0 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 F ELECTRIC W kWH 100 lbs 2610 4 65 2370 3 91 WATER gal 24HR gal 100 Ibs 249 18 5 708 48 6 ICE PRODUCTION PER CYCLE 32 5 Ibs 14 8 kg 1440 REFRIGERANT CHARGE R404A 3 Ib 12 5 oz 17159 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCT
45. WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 3720 3 78 3510 3 5 WATER gal 24HR gal 100 165 459 19 4 744 30 9 WATER COOLED CONDENSER 2389 101 1430 59 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 46 3 Ibs 21 kg 2160pcs REFRIGERANT CHARGE R404A 4 Ib 11 5 oz 21409 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR FC 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG 2 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 35 500 BTU h 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 4 900 BTU h AT 90 F 32 C WT 70 F 21 C WATER FLOW FOR CONDENSER 130 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 94 30 KM 2500SRH3 with URC 23F SPECIFICATION SHEET SUPPLY VOLTAGE 208 230 60 3 17 7 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 4190 4 5 3780 3 7 WATER gal 24HR gal 100 Ibs 416 18 6 791 32 6 ICE PRODUCTION PER CYCLE 46 1 165 20 9 kg 2160pcs TOTAL REFRIGERANT CHARGE
46. and service this appliance e The appliance must be installed in accordance with applicable national state and local codes and regulations Failure to meet these code requirements could result in death electric shock serious injury fire or damage to the appliance e 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 damage The icemaker requires an independent power supply of proper capacity See the nameplate for electrical specifications Failure to use an independent power supply of proper capacity can result in a tripped breaker blown fuse damage to existing wiring or component failure This could lead to heat generation or fire THE ICEMAKER MUST BE GROUNDED Failure to properly ground the icemaker could result in death or serious injury To reduce the risk of electric shock do not touch the control switch with damp hands e Move the control switch to the OFF position and turn off the power supply before servicing Lockout Tagout to prevent the power supply from being turned back on inadvertently Do not make any alterations to the appliance Alterations could result in electric shock serious injury fire or damage WARNING continued e The appliance is not intended for use by persons including children with reduced physical sensory
47. bulb with the clamp and holder then insulate it Hot Gas Valves Replace the strainer if applicable Liquid Line Valves Use copper tube of the same diameter and length when replacing valve lines Fan Motors Install a new capacitor Pump Motor Install a new capacitor Thermistor Attach the new thermistor to the suction line in the same location as the previous thermistor The thermistor should be at the 12 o clock position on the tube Smoothly fill the recessed area of the thermistor holder with high thermal conductive type sealant Hoshizaki America part number 4A0683 01 Silicone Heat Sink Compound 10 8108 manufactured by GC Electronics KE 4560 RTV manufactured by ShinEtsu Silicones or equivalent are recommended Secure the thermistor with the holder then insulate it Be very careful to prevent damage to the leads KM 1400SWH M Tighten the water regulating valve flare nut to a torque of 39 8 ft 1b 53 9 N m KM 1400SWH3 M Water Regulating Valve 60 Water Regulating Valve Adjustment water cooled models The water regulating valve is factory set and generally no adjustment is required However when necessary adjust the water regulator using the following procedure 1 Prepare a thermometer to check the condenser drain temperature Attach a pressure gauge to the high side line of the system 2 5 min after a freeze cycle starts confirm that the thermometer reads 104 F to 115 F 40 C to 4
48. by using a wet cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 1 Refrigerant Recovery The icemaker is provided with refrigerant service valves Using proper refrigerant practices recover the refrigerant Store the refrigerant in an approved container Do not discharge the refrigerant into the atmosphere 57 2 Brazing WARNING e 404 itself is not flammable at atmospheric pressure and temperatures up to 176 F 80 C e R 404A itself is not explosive or poisonous However when exposed to high temperatures open flames R 404A can be decomposed to form acid and carbonyl fluoride both of which are hazardous Do not use silver alloy or copper alloy containing arsenic 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 it is important to make connections outside the evaporator case when possible it is necessary to braze inside the evaporator case use sandpaper to remove the coating from the brazing connections before unbrazing the components NOTICE 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
49. kg cm2G 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 17 500 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 400 AT 90 F 32 C WT 70 F 219 CONDENSER VOLUME 133 CU IN URC 14F 71 7 KM 1400SWH M SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 2 Wire AMPERAGE 9 7 A 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 15A MAXIMUM FUSE SIZE 15A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 1820 3 4 1800 3 2 POTABLE WATER gal 24HR gal 100 Ibs 244 18 9 462 33 7 WATER COOLED CONDENSER 2078 161 1108 81 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCL 32 5 Ibs 14 7 kg 1440pcs REFRIGERANT CHARGE R404A 2 Ib 2 4 oz 975g PERFORMANCE SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 1 Ibs day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32 m day 100 38 FREEZING CYCLE TIME 70 21 80 27 90 32 min 100 38 HARVEST CYCLE TIME min 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 22 800 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 500 BTU h AT 90 F 32 C WT 7
50. refrigeration pressures are above HM setpoint and HM is bypassing replace HM Check TXV for proper operation Remove TXV bulb and hold it in your hand refrigerant low side pressure should rise place TXV bulb in ice water refrigerant low side pressure should drop A 10 to 15 pound pressure swing between warm and cold conditions indicate a good TXV If a 10 to 15 pound swing is not present replace TXV g WRV Diagnosis WRV is factory set and generally adjustment is required If WRV fails to open in freeze check for proper refrigerant pressures See Specification and Performance Data If refrigerant pressures are correct and WRV does not open adjust or replace as needed See IV C Water Regulating Valve Adjustment water cooled models h Freeze Termination Diagnosis After 5 min in freeze disconnect CB K5 FS connector 15 sec later appliance should switch out of the freeze cycle 15 second delay after FS opens before terminating the freeze cycle If appliance remains in freeze longer than 15 sec after FS removed replace CB If appliance switches with FS removed but would previously not switch out of freeze with FS connected long freeze beep alarm see Float Switch Check and Cleaning Note Normal freeze cycle will last 20 to 40 min depending on model and conditions Cycle times and pressures should follow performance data provided in this manual See VIII A Specification and Performance Data i S
51. supply line shut off valve is open and screens or external filters are clear Check for 115VAC at CB K1 6 to neutral W If 115VAC is not present replace CB If 115VAC is present and WV does not energize check for 115VAC at WV If 115VAC is present check coil continuity If open replace WV If the water tank fills but the appliance fails to start harvest Comp energized check for open FS See Float Switch Check and Cleaning If FS is closed and CB fails to start the harvest cycle after 1 min replace CB 29 5a Initial Harvest Cycle LEDs 1 4 2 are WV and X11 relay continue Comp FMR and X10 relay energize CB monitors the warming of the evaporator the thermistor located on the suction line When the thermistor reaches 48 F 9 C CB reads 3 9 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 sec The pump out timer S4 dip switch 3 amp 4 acts in place of the harvest timer during cycles with a pump out S4 dip switch 5 amp 6 WV and X11 relay are energized during harvest for a maximum of 6 min or the length of harvest minus 50 sec whichever is shorter 50 sec before harvest terminates PM energizes See step 5b below a Comp Diagnosis Check that evaporator is warming If not confirm that Comp energizes If not check for 115VAC at CB K1 1 V or 9 V to neutral W
52. supply water filters and inlet water valve If the water tank is full follow the steps in 2 Float Switch Cleaning After cleaning FS check it again Replace if necessary Remove the control box cover Legend CB control board FS float switch 39 2 Float Switch Cleaning Depending on local water conditions scale may build up on FS Scale on the switch cause the float to stick In this case FS should be cleaned 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the insulation panel then remove the drain plug located on the lower front part of the ice chute See Fig 3 Allow the water tank to drain 4 Replace the drain plug in its correct position Be careful not to cross thread it 5 Disconnect the vent tube and the flush tube from the top of FS then remove FS assembly and remove the rubber boot from the bottom of FS assembly See Fig 4 6 Remove the retainer from the bottom of FS housing then remove the float Be careful not to bend the retainer rod excessively when removing it 7 Wipe down FS housing float and retainer with a mixture of 1 part Hoshizaki Scale Away and 25 parts warm water Clean the inside of the rubber boot and hose with cleaning solution Rinse the parts thoroughly with clean water 8 Reassemble FS assembly and replace it and the rubber boot in their correct positions Reconnect the vent t
53. this manual Control Transformer 10 5VAC E Control Board Part Number 2A1410 02 47 2 G Control Board Control Board Bin Control Switch Closed LED green on continuously in thermostatic bin control application OUTPUT TEST Button S4 Dip Switch ALARMRESET B tt n E used to test relays on control board 00098209 white Thermistor harvest control and high temperature safety Bin Control Switch Open LED yellow mechanical bin control application only Part Number red Connector Mechanical Bin Control or K4 Jumper thermostatic bin control application 55 Dip Switch 809 RED WHITE ER Alarm Buzzer ooo POWER OK LED red lights when 10 5VAC is supplied to K2 connector Relay LEDs 4 indicate which relays are energized K5 black Connector Float Switch water level s5 299 4 R Label control board revision W K D2 P N 243792 01 4 label connector pins are energized ___ K1 Connector LED 2 2 ex k Pins 1 through 10 LED 2 1 9 Magnetic Contactor or K1 Connector Pin 2 LED 2 2 Hot Gas Valve K1 Connector Pin 3 O lo 3 Fan Motor LED 3
54. uku m 35 D BIN Control Check u uu uu 36 1 Thermostatic Bin Control Check iiiiiaaaaaaaaaaaaaaaaaaasaaaaaaaaaaaanaanannannnnnnnnanauuuunn 36 2 Mechanical Bin Control Check 37 E Float Switch Check and Cleaning Bad v ud 39 Switch 39 scu Eee a a a a 40 F thermistor uu 41 CNN eai eal PET 42 UN COT MONS and au aa 46 A Gontrol Board ses 47 AMO Bes ead TERRE 47 2 G Board lessee te essen 48 LED Lights and Audible Alarm 49 E meter 49 2 G COMMON 2725 0 uuu u a m a 50 C Settings and m 51 1 Default Dip Switch Setting 51 and Control Board without Harvest Pump Timer 51 b Control Board with Harvest Pump Timer Operation 52 c G Control Board S5 Dip 9 52 2 Harvest Timer S4 dip switch 1 amp 2 3c 52 3 Pump Out Timer S4 dip switch 3 amp 4
55. 0 F 21 C WATER FLOW FOR CONDENSER 138 gal h AT 100 F 38 C WT 90 F 32 PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 72 8 KM 1400SWH3 M SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 15A MAXIMUM FUSE SIZE 15A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 1720 3 3 1700 3 0 POTABLE WATER gal 24HR gal 100 Ibs 225 17 9 449 33 4 WATER COOLED CONDENSER 1829 146 1030 77 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYC 31 9 lbs 14 5 kg 1440pcs REFRIGERANT CHARGE R404A 2 Ib 2 4 oz 9759 PERFORMANCE SHEET APPROXIMATE ICE PRODUCTION PER 24 HR AMBIENT TEMP WATER TEMP F C F C 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32 gal day 100 38 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE 70 21 80 27 90 32 PSIG 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 23 500 BTU h AT 90 F 32 C WT 70 F 219 TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 500 BTU h AT 90 F 32 C WT 70 F 219 WATER FLOW FOR CONDENSER 136 gal h AT 100 F 38 WT 90 F 329 PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 73 9 16015 SPECIFICATION
56. 3 KM 1301SWH 3 OFF OFF ON ON ON ON OFF OFF OFF KM 1601SAH 3 5 ON ON ON ON ON oFE ON OFF KM 1400SWH M fron c G Control Board S5 Dip Switch 85 Dip Switch 1 2 3 4 5 54 Dip Switch E and Control Boards Freeze Timer 9 amp 10 S5 Dip Switch Factory Use 8 G Control Board Bin Control Selector 7 E Control Board Harvest Pump Timer 7 G Control Board Do Not Adjust Refill Counter 2 through 5 Pump Out Frequency Control 5 amp 6 Float Switch Selector 1 Pump Out Timer 3 amp 4 Harvest Timer 1 amp 2 2 Harvest Timer S4 dip switch 1 amp 2 The harvest timer starts counting when the thermistor reaches 48 F 9 C at the evaporator outlet and the control board reads 3 9 kO from the thermistor 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 drain provided at harvest needs to be prolonged for extra cleaning Note that the pump out timer S4 dip switch 3 amp 4 acts in place of the harvest timer during cycles with a pump out For details see Pump Out Timer S4 dip switch 3 amp 4 Note On models with a pump out every cycle the harvest timer is only relevant during the initial harvest cycle since a pump out occurs every cycle thereafter S4 Setting Time s
57. 441 CU IN URC 21F 79 15 KM 1601SRH with URC 22F Auxiliary Codes 5 2 and Later This data applies to units with an 11 l min water valve The 11 l min water valve is either part number 4A1176 04 or 4 5251 04 and has the part number stamped on the side of the valve facing the front of the unit SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V AMPERAGE 12 8 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2710 4 36 2560 4 01 WATER gal 24HR gal 100 Ibs 352 23 6 755 49 3 ICE PRODUCTION PER CYCLE 31 6 Ibs 14 3 kg 1440 pcs TOTAL REFRIGERANT CHARGE R404A 22 Ib 14 8 oz 104009 REFRIGERANT CHARGE BY UNIT Icemaker 15 Ib 3 4 oz Cond Unit 7 Ib 11 5 oz PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR CFC 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 21 000 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 800 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 214 CU IN URC 22F 80 16
58. 47Vac 5 or more Legend Comp compressor FM fan motor FWR fan motor remote FS float switch HGV hot gas valve HM headmaster C P R LLV liquid line valve PM pump motor TXV thermostatic expansion valve WRV water regulating valve WV inlet water valve 50 Settings and Adjustments NOTICE Dip switches are factory set Failure to maintain factory settings may adversely affect performance and warranty coverage For more information contact your Hoshizaki Service Center 1 Default Dip Switch Settings The dip switches are factory adjusted to the following positions for both the E and control boards a E and Control Board without Harvest Pump Timer Operation Code on S4 Dip Switch No Auxiliary Water Valve Water Code Part Number Valve 7 orrjrrjorr orr ov ON oFE oFE OFFE ON KM 1601SRH 3 0 R 1 30011 02 248 032 ON ON lOFF OFFIOFF some 5 1 8 5 1 3U0111 01 J248 030 15 l min 4A1176 04 11 ON OFF OFF OFF ON ON ODFF OFF OFF OFF V 1 M amp later 4 5251 04 11 l min 19005 19005 KM 2100SWH3 All OFF OFF OFF OFF OFF OFF OFF OFF OFF KMH 2000SWH 3 KMH 2000SRH3 KM 1900SRH 3 eo ox nr 51 b Control Board with Harvest Pump Operation S4 Dip Switch _S4 Dip Switch No 1 2 3 4 5 6 7 8 9 10 KM 1301SAH
59. 6 C If it does not rotate the adjustment screw by using a flat blade screwdriver until the temperature is in the proper range rotate counterclockwise to raise temperature or clockwise to lower temperature See Fig 6 Next check that the reference pressure is in the range indicated in VIII A Specification and Performance Data If it is not in the proper range verify the refrigerant charge 3 Check that the condenser drain temperature is stable Adjustment Screw _ CCW Higher I Top View ERES Fig 6 61 V Maintenance The maintenance schedule below is a guideline More frequent maintenance may be required depending on water quality the appliance s environment and local sanitation regulations WARNING Only qualified service technicians should service the appliance To reduce the risk of electric shock do not touch the control switch or service switch with damp hands Before servicing Move the control switch to the OFF position and turn off the power supply Place the disconnect in the OFF position Lockout Tagout to prevent the power supply from being turned back on inadvertently CHOKING HAZARD Ensure all components fasteners and thumbscrews securely in place after any maintenance is done to the icemaker Make sure that none have fallen into the dispenser unit ice storage bin Maintenance Schedule Clean th
60. A APPROXIMATE ICE PRODUCTION WATER TEMP F C TEMP F C 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 m3 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 cm2G 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 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 AT 90 F 32 C WT 70 F 21 C WATER FLOW FOR CONDENSER 120 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 68 4 KM 1301SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 6 1 A 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 1840 3 4 1770 3 2 WATER gal 24HR gal 100 Ibs 248 19 1 557 41 8 WATER COOLED CONDENSER 1547 119 857 64 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 32 2 Ibs 14 6 kg 1440pcs REFRIGERANT CHARGE R404A 2 Ib 8 2 oz 11409 PERFORMANCE DATA APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR F C 90 32 70 21 605 600 565 80
61. Cycle LED 4 is on WV energizes After 1 min CB checks for a closed FS If FS is closed harvest cycle begins If harvest cycle begins Comp HGV and FMR energize continue to step 5 If FS is open WV remains energized through additional 1 min fill cycles until water enters the water tank and FS closes low water safety protection during initial start up and at the end of each harvest Diagnosis Check that water enters the water tank If not check that the water supply line shut off valve is open and screens or external filters are clear Check for 115VAC at CB K1 6 O to neutral W If 115VAC is not present replace CB If 115VAC is present and WV does not energize check for 115VAC at WV If 115VAC is present check coil continuity If open replace WV If the water tank fills but the appliance fails to start harvest Comp energized check for open FS Float Switch Check and Cleaning If FS is closed and CB fails to start the harvest cycle after 1 min replace CB 24 5 Initial Harvest Cycle LEDs 1 4 and 2 WV continues Comp FMR and HGV 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 kO from the thermistor and turns harvest termination over to the harvest timer 54 dip switch 1 amp 2 The harvest timer has settings of 60 90 120 and 180 sec The pump out timer S4 dip switch 3 amp 4
62. ERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER 1 95 CONSUMPTION 24 m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 26 100 BTU h 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 441 CU IN URC 21F 90 26 KM 1900SRH3 with URC 22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 11 0 A 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20 ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2780 4 04 2640 3 33 WATER gal 24HR gal 100 Ibs 345 20 9 634 33 3 ICE PRODUCTION PER CYCLE 46 8 Ibs 21 2 kg 2160pcs TOTAL REFRIGERANT CHARGE R404A 21 Ib 7 9 oz 97509 REFRIGERANT CHARGE BY UNIT Icemaker 13 Ibs 12 5 oz Cond Unit 7 Ibs 11 5 oz PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR F C 50 10 70 21 90 32 63 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYC
63. F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h 90 F 32 C WT 70 F 21 C WATER FLOW FOR CONDENSER 113 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 86 22 KM 1900SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 8 4 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 F ELECTRIC W kWH 100 lbs 2490 3 3 2410 3 2 POTABLE WATER 24 8 100 Ibs 341 18 8 584 32 0 WATER COOLED CONDENSER 1796 99 982 54 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 45 4 Ibs 20 6 kg 2160pcs REFRIGERANT CHARGE R404A 3 Ib 1 4 oz 14009 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 27 100 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h AT 90 F 32 C WT 70 F 21 C WATER FLOW FOR CONDENSER 117 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLIN
64. F Auxiliary Codes 0 1 and some 5 1 This data applies to units with an 8 l min water valve 8 l min water valve is part number 3U0111 02 and has J248 032 stamped on the side of the valve facing the rear of the unit SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V AMPERAGE 12 8 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 MAXIMUM FUSE SIZE 20 ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2640 4 3 2440 3 7 WATER gal 24HR gal 100 Ibs 255 17 3 503 31 8 ICE PRODUCTION CYCLE 29 4 Ibs 13 3 kg 1440 pcs TOTAL REFRIGERANT CHARGE R404A 24 Ib 14 6 oz 113009 REFRIGERANT CHARGE BY UNIT Icemaker 15 Ib 3 4 oz Cond Unit 9 Ib 11 2 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE PSIG kg cm2G TOTAL HEAT OF REJECTION FROM CONDENSER 24 600 BTU h AT 90 F 32 C WT 70 F 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 300 BTU h AT 90 F 32 C WT 70 F 21 C NDENSER VOLUME 441 CU IN URC 21F 78 14 KM 1601SRH with URC 21F Auxiliary Codes some 5 1 and 5 2 and Later This data applies to uni
65. FROM COMPRESSOR 3 300 BTU h 90 F 32 WT 70 F 21 FLOW FOR CONDENSER 101 gal h AT 100 F 38 WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 76 12 KM 1601SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 9 0 5 Min Freeze 104 F WT 80 MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 F ELECTRIC W kWH 100 lbs 2390 3 66 2270 3 5 WATER gal 24HR gal 100 Ibs 372 23 8 804 51 7 WATER COOLED CONDENSER 1565 100 910 59 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 30 2 Ibs 13 7 kg 1440 pcs REFRIGERANT CHARGE R 404A 3 lbs 1 oz 14009 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 23 500 BTU h 90 F 32 WT 709 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h AT 90 F 32 C WT 70 F 21 WATER FLOW FOR CONDENSER 111 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 77 13 KM 1601SRH with URC 21
66. FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2220 4 6 2090 3 9 WATER gal 24HR gal 100 Ibs 181 15 6 511 39 4 ICE PRODUCTION PER CYCLE 30 4 Ibs 13 8 1440pcs REFRIGERANT CHARGE R404A 3 Ib 15 5 oz 18009 PERFORMANCE DATA 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 m3 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 cm2G 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 20 200 BTU h AT 90 F 32 C WT 70 F 21 C 67 3 KM 1301SWH SPECIFICATION SHEET SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V 208 230 60 1 8 2 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 MAXIMUM FUSE SIZE 20 ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 1760 3 2 1740 3 2 WATER gal 24HR gal 100 Ibs 257 19 4 546 41 4 WATER COOLED CONDENSER 1561 118 861 65 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 31 Ibs 14 1 kg 1440pcs REFRIGERANT R404A 2 Ib 8 2 oz 11409 DAT
67. G WATER LINE less than 10 PSIG 87 23 KM 1900SRH with URC 21F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral 115V AMPERAGE 14 9 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2630 3 9 2460 3 1 WATER gal 24HR gal 100 lbs 323 20 0 585 30 5 ICE PRODUCTION PER CYCLE 46 3 Ibs 21 kg 2160pcs TOTAL REFRIGERANT CHARGE R404A 23 Ib 7 7 oz 106509 REFRIGERANT CHARGE BY UNIT Icemaker 13 Ibs 12 5 oz Cond Unit 9 Ibs 11 2 oz PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 27 400 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 300 BTU h AT 90 F 32 C WT 70 F 21 CONDENSER VOLUME 441 CU IN URC 21F 88 24 KM 1900SRH with URC 22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral 115V AMPERAGE 14 9 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 30A MAXIMUM FUSE SIZE 30A ELECTRIC amp WATER CONSUMPTION 90
68. Hoshizaki America Inc Stackable Crescent Cuber Models KM 1301SAH 3 SWH 3 SRH 3 KM 1400SWH M SWH3 M KM 1601SAH 3 SWH 3 SRH 3 KM 1900SAH 3 SWH 3 SRH 3 KM 2 100SWH3 SRH3 KM 2500SWH3 SRH3 KMH 2000SWH 3 SRH 3 SERVICE MANUAL A Superior Degree of Reliability www hoshizaki com Number 73197 Issued 8 16 2013 Revised 7 7 2015 WARNING Only qualified service technicians should install and service the appliance obtain the name and phone number of your local Hoshizaki Certified Service Representative visit www hoshizaki com No service should be undertaken until the technician has thoroughly read this Service Manual Failure to service and maintain the appliance in accordance with this manual will adversely affect safety performance component life and warranty coverage and may result in costly water damage Proper installation is the responsibility of the installer Product failure or property damage due to improper installation is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the appliance Should the reader have any questions or concerns which have not been satisfactorily addressed please call send an e mail message or write to the Hoshizaki Technical Support Department for assistance Phone 1 800 233 1940 770 487 2331 Fax 1 800 843 1056 770 487 3360 E mail techsupport hoshiz
69. ION PER 24 HR F C 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE PSIG kg cm2G TOTAL HEAT OF REJECTION FROM CONDENSER 24 400 BTU h 90 F 32 C WT 70 F 21 75 11 KM 1601SWH SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V AMPERAGE 13 4 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2410 3 8 2300 3 7 WATER gal 24HR gal 100 Ibs 373 24 5 698 46 8 WATER COOLED CONDENSER 1493 98 930 62 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 30 2 Ibs 13 7 kg 1440 pcs REFRIGERANT CHARGE R 404A 3 Ibs 1 oz 14009 PERFORMANCE DATA SHEET AMBIENT TEMP WATER TEMP APPROXIMATE ICE PRODUCTION 24 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 23 100 BTU h AT 90 F 32 WT 70 F 21 C TOTAL HEAT OF REJECTION
70. LE TIME min HEAD PRESSURE kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 25 700 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 100 BTU h AT 90 F 32 C WT 70 F 21 CONDENSER VOLUME 214 CU IN URC 22F 91 27 KM 2100SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 10 5 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2860 3 35 2740 3 14 POTABLE WATER galJ24HR gal 100 Ibs 410 20 0 673 32 1 WATER COOLED CONDENSER 1948 95 1121 54 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 46 8 Ibs 21 2 kg 2160pcs REFRIGERANT CHARGE R404A 3 Ib 6 7 oz 15509 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 31 100 BTU h AT 90 F 32 WT 70 F 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 800 AT 90 F 32 C WT 70 F 219C WATER FLOW FOR CO
71. M 1914 ane 19M Aiddng 16 Remote Models SRH 3 Except KM 2500SRH3 Condenser Unit with Headmaster CPR J YCA MENEEEN jno dung S MBH Z 014 r xoeuo eur uonong _ JoBueuox3 1e H sed 10H YOUMS ainssald eiqisn4 eur pinbi1 1ojSiuueu BS Dnm E aust 51 12 19 19 1 19 19 2 mes wwe ae w kim NZ xL V NV et 8 Li I s qni Aeids segn L i m L ane seven 2 A ddns 1 SuepuoO JejseuJpeeH e HHSOOSCc IAM 17 3b Remote Models SRH3 KM 2500SRH3 Condenser Unit without Headmaster CPR UND YOUMS 12014 jno dung _ 92994 JOULES 015 UAMS INSS Id YDIH eur Bulue o Joyesoden 99989 rr sn 2024 Jeug LUE SATEA HO INYS l SU PUOJ 18 iagnosis ion and Service D ll Sequence of Operat ion Flo
72. NDENSER 109 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 92 28 KM 2100SRH3 with URC 22F SPECIFICATION 5 AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 12 5 A 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 3210 4 26 2900 3 42 WATER gal 24HR gal 100 Ibs 382 21 1 687 33 8 ICE PRODUCTION PER CYCLE 46 8 Ibs 21 2 kg 2160pcs TOTAL REFRIGERANT CHARGE R404A 16 Ib 1 5 oz 73009 REFRIGERANT CHARGE BY UNIT Icemaker 8 Ibs 6 oz Cond Unit 7 Ibs 11 5 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE PSIG kg cm2G TOTAL HEAT OF REJECTION FROM CONDENSER 30 400 BTU h 90 F 32 C WT 70 F 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 800 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 214 CU IN URC 22F 93 29 KM 2500SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 14 2 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC amp
73. P WATER TEMP F C PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG 2 SUCTION PRESSURE 70 21 80 27 90 32 PSIG 2 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 23 700 BTU h AT 90 F 32 C WT 70 F 21 C 85 21 19005 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral 115V AMPERAGE 12 5 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 30A MAXIMUM FUSE SIZE 30A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2390 3 1 2330 3 0 POTABLE WATER gal 24HR gal 100 Ibs 348 18 8 628 33 5 WATER COOLED CONDENSER 1832 99 1022 55 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 47 Ibs 21 3 2160pcs REFRIGERANT CHARGE R404A 3 Ib 1 4 oz 14000 PERFORMANCE DATA SHEET APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR CFPC 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 26 800 BTU h AT 90
74. R404A 24 Ib 7 5 oz 111009 REFRIGERANT CHARGE BY UNIT Icemaker 14 Ibs 12 3 oz Cond Unit 9 Ibs 11 2 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG 2 SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 40 600 BTU h AT 90 F 32 C WT 70 F 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 5 600 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 441 CU IN URC 23F 95 31 KMH 2000SWH SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral 115V AMPERAGE 12 1 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2420 3 3 2410 3 2 POTABLE WATER gal 24HR gal 100 Ibs 308 17 5 535 29 4 WATER COOLED CONDENSER 1484 84 929 51 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 45 4 Ibs 20 6 kg 2160pcs REFRIGERANT CHARGE R404A 3 Ib 1 4 oz 14009 PERFORMANCE DATA SHEET 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 CONSUMPTION
75. Thermostatic Expansion Valves Check Valves Evaporator Assembly refrigeration High Side Service Valve Cleaning Valve water SH 5 4 Water Pump Float Switch Low Side Service Valve Transformer Box 3 phase model Control Box Control Switch Bin Control Thermostat Model Shown KMH 2000SRH3 Hot Gas Valve Liquid Line Valve Compressor Drier Receiver Model Shown KMH 2000SRH3 12 Control 1 Single Thermostatic Control Bin Control Bulb Holder E Bin Control Bulb Holder F Bin Control Bulb Holder G Spacer Bin Control Bulb Holder C Bin Control Silicone Hose Extension Bracket Bin Control Bulb Holder Z Bracket Used for Hoshizaki B 1300 B 1500 B 1650 and Non Hoshizaki Ice Stoarage Bin 1b Stacked Thermostatic Bin Control Upper Bin Control Bulb Holder Lower Bin Control Bulb Holder Bin Control Bulb Holder E Bin Control Bulb Holder F Bin Control Bulb Holder G Spacer Silicone Hose Bin Control Extension Bracket Upper Bin Control Bulb Holder Z Bracket Used for Hoshizaki B 1300 B 1500 B 1650 and Non Hoshizaki Ice Stoarage Bin Lower Bin Control Bulb Holder Single Mechanical Control Mechanical Bin Control C
76. VOLUME 214 CU IN URC 22F 98 34 KMH 2000SRH3 with URC 22F SPECIFICATION SHEET SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 9 9 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2600 3 7 2430 3 0 WATER gal 24HR gal 100 Ibs 281 16 8 507 26 3 ICE PRODUCTION PER CYCLE 46 9 Ibs 21 3 kg 2160pcs TOTAL REFRIGERANT CHARGE R404A 16 Ib 1 5 oz 73009 REFRIGERANT CHARGE BY UNIT Icemaker 8 Ibs 6 oz Cond Unit 7 Ibs 11 5 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 26 500 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 214 CU IN URC 22F 99 B Wiring Diagrams 1 and Control Board Schematics without Harvest Pump Timer Relays DISd 22 2 umno OISd z Lv OlSd 2 86 Mo n pue
77. acts in place of the harvest timer during cycles with a pump out S4 dip switch 5 amp 6 WV remains energized during harvest for a maximum of 6 min or the length of harvest whichever is shorter a Comp Diagnosis Check that evaporator is warming lf not confirm that Comp energizes If not check for 115VAC at CB K1 1 V or 9 V to neutral W If 115VAC is not present check for 115VAC at CB K1 7 BR or 10 BR to neutral W If 115VAC is present at 7 BR 10 BR and not at CB 1 V or 9 V replace CB If 115VAC is present check for 115VAC at MC solenoid If 115VAC is present confirm contacts are closed If not replace MC If MC contacts are closed check Comp start and run capacitors Comp start relay and Comp motor winding b HGV Diagnosis l Comp is energized and evaporator is not warming check that HGV energizes and opens Check for 115VAC at CB K1 2 P to neutral W If 115VAC is not present replace CB If 115VAC is present check for 115VAC at HGV coil and check HGV coil continuity Replace as needed LLV Diagnosis Confirm that LLV is de energized and closed not bypassing If energized replace CB If de energized and bypassing replace LLV d WRV Diagnosis Confirm WRV is not leaking by e Initial Harvest Cycle Termination Diagnosis When the thermistor reaches 48 F 9 C CB reads 3 9 from the thermistor and turns harvest termination over to the harvest timer S4 dip switch 1 amp
78. aki com HOSHIZAKI AMERICA INC 618 Highway 74 South Peachtree City GA 30269 Attn Hoshizaki Technical Support Department 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 problem IMPORTANT This manual should be read carefully before the appliance is serviced Read the warnings and guidelines contained in this manual carefully as they provide essential information for the continued safe use service and maintenance of the appliance Retain this manual for any further reference that may be necessary CONTENTS Important Satelv u uu u Rape cap a Mo T 6 Construction and Water Refrigeration Circuit Diagram 2 4 2 2 8 A DES qc WU ht M MEN 8 1 Ai Cooled Models SAH 89 RU RR ae RES 8 2 Water Cooled Models SWH S M 9 3 Remote Models SRH 3 utem uis esie Basalt n aaa ka al a ME 10 MMOL 11 1 Water Cooled Models SWH 9 ones 11 2 Remote Models 12 a 13 Ta Single Thermostatic Bin Control 13 1b Stacked Thermostatic Bin Control 13 2 Single Mechanical Bin
79. and Later This data applies to units with a 15 l min or 11 l min water valve The 15 l min water valve is part number 3U0111 01 and has J248 030 stamped on the side of the valve facing the rear of the unit The 11 water valve is either part number 4A1176 04 or 4A5251 04 and has the part number stamped on the side of the valve facing the front of the unit SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 3 AMPERAGE 7 9 A 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20 MAXIMUM SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2960 4 70 2580 3 90 WATER gal 24HR gal 100 Ibs 363 24 0 781 49 3 ICE PRODUCTION PER CYCLE 31 2 Ibs 14 2 kg 1440 pcs TOTAL REFRIGERANT CHARGE R404A 24 Ib 14 6 oz 113009 REFRIGERANT CHARGE BY UNIT Icemaker 15 Ib 3 4 oz Cond Unit 9 Ib 11 2 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE PSIG kg cm2G TOTAL HEAT OF REJECTION FROM CONDENSER 22 000 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 200 BTU h AT 90 F 32 C WT 70 F 21 C CONDENSER VOLUME 441 CU IN URC 21F
80. and remains on unless a control voltage problem occurs The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below Note that the order of the LEDs from the outer edge of the control board is 1 4 3 2 Time LEDs are On Sequence Step Cais 1 Fill Cycle Harvest Cycle Freeze Cycle Comp FM FMR PM 5 minutes freeze timer 30 to 35 minutes LLV setting Pump Out Cycle Comp FMR HGV PM 10 seconds 20 seconds pump out timer WV setting The built in safeties shut down the icemaker and have alarms as listed below No of Beeps 1 High Evaporator Temp Check for harvest problem stuck HGV or relay hot temperature gt 127 F 53 C water entering icemaker or shorted thermistor 2 Harvest Backup Timer Check for open thermistor HGV not opening TXV or harvest gt 20 min for two LLV leaking by low charge or inefficient Comp or WRV cycles in a row leaking by 3 Freeze Timer Check for FS stuck closed up WV leaking by HGV freeze gt freeze timer setting leaking by PM not pumping not feeding properly for two cycles in a row LLV not opening low charge HM not bypassing or inefficient Comp To reset the above safeties press the ALARM RESET button with the power supply on Low Voltage Red LED turns off if voltage protection operates 92Vac 5 or less The control voltage safeties automatically reset when High Voltage voltage is corrected 1
81. arms as listed below of Beeps High Evaporator Temp Check for harvest problem stuck HGV or relay hot temperature gt 127 F 53 C water entering icemaker or shorted thermistor 2 Harvest Backup Timer Orange H TIMER LED on harvest gt 20 min for two cycles Check for open thermistor HGV not opening TXV or in a row LLV leaking by low charge or inefficient Comp or WRV leaking by Freeze Timer Yellow F TIMER LED on freeze gt specified setting for Check for FS stuck closed up WV leaking by HGV two cycles in a row leaking by PM not pumping TXV not feeding properly LLV not opening low charge HM not bypassing or inefficient Comp To reset the above safeties press the ALARM RESET button with the power supply on _ _ Low Voltage Red LED turns if voltage protection operates 92Vac 5 or less The control voltage safeties automatically reset when High Voltage voltage is corrected 147Vac 5 or more Legend Comp compressor FM fan motor FMR fan motor remote FS float switch HGV hot gas valve HM headmaster C P R LLV liquid line valve PM pump motor TXV thermostatic expansion valve WRV water regulating valve WV inlet water valve 49 2 Control Board At startup 5 second delay occurs while the control board conducts internal timer check A beep occurs when the control switch is moved to the ICE position The red POWER LED indicates proper control voltage
82. at HPS P and not at HPS BK HPS is open See HPS Diagnosis below If 115VAC is present at HPS BK check for 10 5VAC at CB K2 1 red wire to CB K2 2 red wire If 10 5VAC is not present check that the cleaning valve interlock switch is closed Next check CT continuity If open replace CT b HPS Diagnosis Confirm FM is energized and fan blade turns freely Confirm condenser coil is not dirty Confirm that the location meets installation requirements See the appliance s instruction manual for details Confirm there are no restrictions in the refrigeration circuit Harvest Cycle HGV strainer or check valve Freeze Cycle FM FMR TXV HM LLV WRV strainer check valve drier damaged line set or fitting and fan blade for binding Let refrigeration circuit pressures equalize If HPS does not reset and pressures are equalized replace HPS If pressures are not equalized reclaim refrigerant and diagnose refrigeration circuit restriction 4 1 Min Fill Cycle LED 4 is on WV and X11 relay energize After 1 min CB checks for a closed FS If FS is closed the harvest cycle begins If harvest cycle begins Comp HGV FMR energized continue to step 5a If FS is open WV remains energized through additional 1 min fill cycles until water enters the water tank and FS closes low water safety protection during initial start up and at the end of each harvest Diagnosis Check that water enters the water tank If not check that the water
83. c Defective 9 Bin Control a Thermostatic Thermostat bulb loose or defective See 11 0 Bin Control Check b Mechanical Actuator does not move or defective o Defective capacitor Water leaks causing short freeze time 43 Freeze Up Possible Cause 10 Thermistor a Loose disconnected or defective See Thermistor Check 11 Thermostatic Expansion Valve 12 Hot Gas Valve 18 Liquid Line Valve 1 Evaporator 2 Spray Tubes and or Spray Guides 3 Refrigerant Charge Low 4 Control Board a Freeze timer S4 dip switch 9 amp 10 set incorrectly See Control Board Check b Defective 5 Inlet Water Valve a Leaking by 6 Float Switch a Float does not move freely See Float Switch Check b Defective and Cleaning 7 Pump Motor a RPM too slow b Impeller damaged 8 Thermostatic Expansion Valve Bulb loose or defective 9 Liquid Line Valve a Restricted 10 Headmaster a Not bypassing remote models 3 Low Ice Production Low Ice Production Possible Cause Long Harvest Cycle 1 Evaporator a Scaled up 2 Spray Tubes and or Spray a Dirty Guides b Out of position 3 Refrigerant Charge 4 Water Supply a Low water pressure b External water filters clogged c Insufficient water line size Minimum 3 8 Nominal ID 10 mm Nominal OD in the EU water tubing or equivalent d Too cold 5 Control B
84. ce Production 3 The OUTPUT TEST button provides a relay sequence test Make sure the control switch is in the ICE position then press the OUTPUT TEST button For the correct lighting sequence see the table below Note that the order of the LEDs from the outer edge of the control board is 1 4 3 2 Components e g compressor cycle during the test Control Correct LED Board Lighting Sequence Following the test the icemaker begins operation at the 1 minute fill cycle for both E and G control boards If the LEDs do not light as described above replace CB 4 To verify voltage output from CB to the components slide the CB K1 connector out far enough to allow multimeter lead contact With the icemaker in the cycle to be tested check output voltage from the corresponding pin on CB K1 connector to a neutral W wire If output voltage is not found and the appropriate LED is on replace Legend CB control board CT control transformer 35 D Bin Control Check 1 Thermostatic Bin Control Check BC shuts down the icemaker within 10 sec when ice contacts the thermostatic bulb regardless of the cycle at activation NOTICE When the ambient temperature is below 45 F 7 C BC opens and shuts down the appliance even if the ice storage bin is empty When is set in the prohibited range the appliance operates continuously even if the ice storage bin is filled with ice Setting in the prohibited range
85. ce has not shut off on HPS POWER LED off so check 3 b HPS Diagnosis above lf POWER OK LED is on check for 115VAC at CB K1 1 V 9 V to neutral W If 115VAC is not present and LED 1 is on replace CB If 115VAC is present check for 115VAC at CR coil If 115VAC is present check CR or MC coil and contact continuity Replace as needed If CR or MC is ok check Comp external overload start relay and start and run capacitors Next check Comp motor winding continuity If Comp is energized but evaporator is not cooling check for an inefficient Comp See VIII A Specification and Performance Data If Comp is energized but FMR is not check for 115VAC at the FMR junction box If 115VAC is not present check icemaker wiring connections If 115VAC is present check for voltage at condenser unit If 115VAC is not present check field wiring connections If 115VAC is present check FMR capacitor motor winding and fan blade for binding WV and HGV Diagnosis If WV is energized check for 115VAC at K1 6 to neutral W If 115VAC is present after PM energizes replace CB If 115VAC is not present replace WV bypassing If HGV did not de energize check for 115VAC at CB K1 2 P to neutral W If 115VAC is present after PM energizes replace CB If 115VAC is not present replace HGV bypassing d PM Diagnosis Confirm water is flowing over evaporator from PM and not WV If PM de energizes once
86. d Red K4 Connector 14 D Water Refrigeration Circuit Diagram 1 Air Cooled Models SAH 3 J YCA 1InO duind 44 KA Joss iduuoo V eur eBieuosiq 9NEA bod xoeuo iod eur uonons seo 10H JeBueuox3 1eeH YOUMS eur h s U 87878 L L l L PLE E NZ Joyejode 3 segn segn JOVEN 1919 1 15 2 Water Cooled Models SWH 3 M JOVEM mmm jno dung 1 eur e amp ieuosiq 0992 sep 10H YOUMS INSS Id UDIH JoBueuox3 eur pinbr JO SIULI9U L USC LCS c2 _ gt s qni Aeids segn uk a Buiueo 2 4 00 A EA 19
87. e 15 sec after activation Harvest Cycle At the end of the harvest cycle or up to 15 sec into the freeze cycle if activated at the end of the harvest cycle Freeze Cycle 15 sec after activation if activated at least 15 sec before the 5 min short cycle protection timer terminates Otherwise at the end of the next harvest cycle Legend MBC mechanical bin control CB control board 37 b Mechanical Control Cleaning Scale may build up on MBC Scale can cause the actuator paddle and magnet to stick In this case MBC should be cleaned WARNING CHOKING HAZARD Ensure all components fasteners and thumbscrews are securely in place after the icemaker is serviced Make sure that none have fallen into the dispense unit ice storage bin 1 2 3 4 Turn off the power supply Remove the front panel then move the control switch to the OFF position Clear any ice away from MBC Disconnect MBC connector from connector then remove MBC the icemaker 5 Remove the actuator paddle from the switch mount See Fig 2 6 Wipe down MBC with a mixture of 1 part of Hoshizaki Scale Away and 25 parts of warm water Rinse the parts thoroughly with clean water 7 Reassemble MBC and replace it in its correct position Note If the magnet was removed for cleaning be sure to replace it in its correct position 8 Reconnect MBC connector to CB K4 connector then move the control switch to the ICE position
88. e ice scoop using a neutral cleaner Rinse thoroughly after cleaning Bi Weekly Air Filters Inspect Wash with warm water and neutral cleaner if dirty Monthly External Water Check for proper pressure and change if necessary Filters Icemaker Exterior Wipe down with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up Clean any chlorine staining rust colored spots using a non abrasive cleanser Yearly Icemaker and Clean and sanitize per the cleaning and sanitizing instructions provided Dispenser Unit Ice in the instruction manual or maintenance label on the icemaker Storage Bin Liner system Clean the water supply inlet screen frequent cleaning may be required depending on location As Needed Marine Model If contaminated seawater enters the system flush with clean seawater or Condenser fresh water as soon as possible to minimize damage to the condenser 62 VI Preparing the Icemaker Periods of Non Use NOTICE e When storing the appliance for an extended time or in sub freezing temperatures follow the instructions below to prevent damage To prevent damage to the water pump do not operate the appliance with the control switch in the WASH position when the water tank is empty When the appliance is not used for two or three days under normal conditions it is sufficient to move the control switch to the OFF position When storing the appliance for an
89. ec 3 Pump Out Timer 54 switch 3 amp 4 NOTICE On models with harvest pump timer do not adjust 3 off and 4 on Pump does not run in pump out rotation in this setting When is called for the pump motor stops for 2 sec then energizes in the reverse direction taking water from the bottom of the water 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 sec a Dip Switch Setting Time init Water OFE OFF FF Open T1 Time to the water tank T2 Harvest timer at pump out 180 ses 20 53 4 Pump Out Frequency Control 54 dip switch 5 4 6 frequency control 15 factory set Generally 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
90. eigene uuu Mm 66 A Specification and Performance Rada 66 1 KMI1301SAN 053 a nisu saras 66 T 67 CHI KM AS0SWH eec A ecu TP 68 69 5 KM 1301SRHI with URC 14F sH ska aaa 70 6 KM 1301SRH3 with URG 14F kt co cu ERE 1 LAKM 1400SWH M T 72 8 KM 1400SWH3 M C ER 73 74 c 75 76 77 13 KM 1601SRH with URC 21F Auxiliary Codes R 0 R 1 and some S 1 78 14 KM 1601SRH with URC 21F Auxiliary Codes some S 1 and 5 2 and Later 79 15 KM 1601SRH with URC 22F Auxiliary Codes 5 2 and Later 80 4 16 KM 1601SRH3 with URC 21F Auxiliary Codes 0 R 1 and some S 1 81 17 KM 1601SRH3 with URC 21F Auxiliary Codes some 5 1 5 2 and Later 82 18 KM 1601SRH3 with URC 22F Auxiliary Codes 5 2 and Later 83 19 KM1 900SAH MCCC 84 20 KM A900SAH aa Aaaa 85 2 le 1 ESEN 86 22 KM 1900SWH 9 87 29 KM 1900SRH with URC 21 F 88 24 KM 1900SRH with 22F a 89 25KM 1900SRHS WIN 90 26 KM 1900SRFH3 with URC 22F KM V O V ROm A O 91 271 KM 2100SWPM
91. energize check for 115VAC at CB K1 5 DBU to neutral W If 115VAC is not present replace CB If 115VAC is present make sure the drain line is not clogged and that CV is clean and operating properly Confirm FM and LLV de energize If FM or LLV is energized with LEDs 1 3 and 2 on replace CB 27 8 Normal Harvest Cycle Same as the initial harvest cycle Return to step 5 above Note Appliance continues to cycle until BC is satisfied or power is turned off The appliance always restarts at the 1 min fill cycle 9 Shutdown E and G Control Board When the appliance is running hold ice in contact with the thermostatic bulb TBC switch opens within 10 sec shutting down the appliance TBC is factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations Diagnosis Bin Control Check NOTICE Do not adjust S4 dip switch 7 out of the factory default position This dip switch must be left in the factory default position or the appliance will not operate correctly G Control Board CB red K4 connector must have the jumper in place When the jumper is in place the green BC CLOSED LED remains If the jumper is not in place yellow BC LED turns on and the icemaker turns off and remains off until the jumper is replaced in its original position Legend BC bin control CB control board CR compressor relay CT
92. est cycle or pump out cycle After 2 consecutive freeze timer terminations the control board shuts down the icemaker In this case see II G 3 Low Ice Production for possible solutions The freeze timer is factory set and no adjustment is required Before changing this setting contact Hoshizaki Technical Support at 1 800 233 1940 for recommendations S4 Dip Switch Setting Time min OFF 60 8 Float Switch Selector 55 dip switch 1 Control Board NOTICE Do not adjust This must be left in the factory default position or the icemaker will not operate correctly 9 Refill Counter S5 dip switch 2 through 5 G Control Board NOTICE Do not adjust These must be left in the factory default position or the icemaker will not operate correctly D Control Switch The control switch has three positions OFF for power off ICE for icemaking and WASH to energize the pump motor when cleaning and sanitizing 56 IV Refrigeration Circuit and Component Service Information WARNING e This appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death electric shock serious injury or fire e Move the control switch to the OFF position and turn off the power supply Place the disconnect in the OFF position Lockout Tagout to prevent the power supply from being turned back on inadvertently CHOKING HAZARD Ensure all compo
93. extended time or in sub freezing temperatures follow the instructions below 1 Remove the water from the icemaker water supply line 1 Turn off the power supply then remove the front panel 2 Move the control switch to the OFF position 3 Close the icemaker water supply line shut off valve then open the icemaker water supply line drain valve 4 Allow the line to drain by gravity 5 Attach a compressed air or carbon dioxide supply to the icemaker water supply line drain valve 6 Move the control switch to the ICE position 7 Replace the front panel in its correct position then turn on the power supply 8 Blow the icemaker water supply line out using the compressed air or carbon dioxide supply 9 Close the icemaker water supply line drain valve 2 Drain the water tank 1 Turn off the power supply then remove the front panel 2 Move the control switch to the OFF position 3 Remove the insulation panel Remove the drain plug located on the lower front part of the ice chute See Fig 7 Allow the water tank to drain 4 Replace the drain plug and the insulation panel in their correct positions Be careful not to cross thread the drain plug 5 Remove all ice from the dispenser unit ice Drain Plug Cleaning Valve storage bin Clean the dispenser unit ice
94. freeze begins check for 115VAC at CB K1 4 R to neutral W If 115VAC is not present replace CB If 115VAC is present and PM is de energized check for 115VAC at control switch 5 R to neutral W If 115VAC is present at CB K1 4 R and not at control switch 5 R check control switch continuity between 5 R and 4 R Replace as needed lf 115VAC is present at control switch 5 R to neutral W check PM impeller for binding PM capacitor and motor winding continuity e FM and LLV Diagnosis If FM or LLV does not energize check for 115VAC at CB f K1 3 to neutral W If 115VAC 1 not present replace CB It 115VAC is present For FM check capacitor motor winding and blade for binding For LLV check coil voltage and continuity Refrigerant Pressures HM and TXV Diagnosis evaporator is still not cooling check refrigerant pressures See VIII A Specification and Performance Next check HM operation If refrigeration pressures are above HM setpoint and HM is bypassing replace HM Check TXV for proper operation Remove TXV bulb and hold it in your hand refrigerant low side pressure should rise place TXV bulb in ice water refrigerant low side pressure should drop 10 to 15 pound pressure swing between warm and cold conditions indicate a good TXV 10 to 15 pound swing is not present replace TXV g WRV Diagnosis WRV is factory set and generally no adjustment is required If WRV fai
95. frigerant or reclaimed refrigerant which meets ARI Standard 700 latest edition be used 6 A liquid charge is required when charging an R 404A system to prevent fractionation Place the service cylinder on the scales if the service cylinder is not equipped with a dip tube invert the service cylinder then place it on the scales Open the high side valve on the gauge manifold 7 Allow the system to charge with liquid until the proper charge weight is met 8 If necessary add any remaining charge to the system through the low side NOTICE To prevent compressor damage use a throttling valve or liquid dispensing device to add the remaining liquid charge through the low side refrigerant service valve with the icemaker running 9 Close the high and low side service valves then close the high and low side gauge manifold valves Disconnect the gauge manifold hoses 10 Cap the refrigerant service valves to prevent a possible leak 59 Component Service Information NOTICE When replacing a component listed below see the notes to help ensure proper operation Component Compressor 1 phase Install a new start capacitor run capacitor and start relay 3 phase Install a new magnetic contactor Thermostatic Attach the thermostatic expansion valve bulb to the suction line in the same location Expansion Valves as the previous bulb The bulb should be between the 10 and 2 o clock positions on the tube Secure the
96. ge wiring and connections Do not misconnect K3 WHITE K4 RED and K5 BLACK because the same connector is used for the thermistor mechanical bin control and float switch K4 RED is not used on E control board models e Do not short out power supply to test for voltage e Always replace the whole control board assembly if it goes bad 46 Control Board Layout 1 Control Board E Control Board OUTPUT TEST Button ALARM RESET Button S4 Dip Switch used to test relays on control board ALARM a 000980 OUTPUT TEST Freeze Timer E e ee e PPO Lie 4 LED yellow L J white Connector k Thermistor S ae harvest control and H high temperature safety 6 0 00 64 0 SQ mk E Harvest Backup a gt Timer LED orange __ 2 E ors H e Lo a j H S LEM ae S K4 red Connector e 9 PDA Wir
97. hort Freeze Cycle Diagnosis Confirm water tank fills and overflows during 1 min fill and harvest cycles If not check water supply filters shut off valve WV screen If water tank empties before 5 min timer terminates and freeze cycle is short check that CV is not leaking by water flowing down the potable drain If CV is leaking by remove and clean CV replace rubber seat and spring if necessary If water tank is full see Float Switch Check and Cleaning for erratic FS 32 7 Pump Out Cycle LEDs 1 3 and 2 are 10 20 second pump out Timing of the first pump out is determined by 54 dip switch 5 amp 6 See the table below G Control Board Settings 4 Dip Switch Setting Pump Out 1st Pump Out 5 6 Frequency G Control Board After 2nd freeze cycle After 3rd freeze cycle After 6th freeze cycle After 11th freeze cycle Comp and FMR continue HGV energizes If S4 dip switch 3 amp 4 are set to 3 off and 4 on LED 4 turns on and WV and X11 relay energize energizing X10 relay NOTICE S4 dip switch 3 amp 4 must not be set to 3 off and 4 on Otherwise PM will rotate freeze cycle direction instead of pump out direction FM and LLV de energize PM stops for 2 sec then reverses for 10 20 sec depending on pump out timer S4 dip switch 3 amp 4 setting When the pump out timer terminates pump out is complete The pump out frequency control S4 dip switch 5 amp 6 is factory set and generall
98. inue Confirm that FM and LLV energize Confirm WRV opens Next confirm HGV and X10 relay de energize During the first 5 min of freeze confirm evaporator is cooling If not confirm WV de energized not leaking by HGV de energized not bypassing LLV and FM energize TXV and HM operate correctly WRV opens Comp is efficient and refrigerant charge is correct See VIII A Specification and Performance Data b Comp and FMR Diagnosis If Comp and FMR de energize once freeze begins check that appliance has not shut off on HPS POWER OK LED off If so check 3 b HPS Diagnosis above If POWER OK LED is on check for 115VAC at CB K1 1 V or 9 V to neutral W If 115VAC is not present and LED 1 is on replace CB If 115VAC is present check for 115VAC at CR or MC coil If 115VAC is present check CR or MC coil and contact continuity Replace as needed If CR or MC is okay check Comp start relay and start and run capacitors Next check Comp motor winding continuity If Comp is energized but evaporator is not cooling check for an inefficient Comp See VIII A Specification and Performance Data If Comp is energized but FMR is not check for 115VAC at the FMR junction box If 115VAC is not present check icemaker wiring connections If 115VAC is present check for voltage at condenser unit If 115 is not present check field wiring connections If 115VAC 15 present check FMR capacitor motor winding and fan blade for binding
99. is good If TBC is open remove ice from bulb and warm bulb in hand If TBC does not close replace Bin Control Check Check for 115VAC at control switch 1 to neutral W then at control switch 2 P to neutral W If 115VAC is present on control switch 1 BK and not on control switch 2 P replace control switch If 115VAC is present on control switch 2 P check for 115VAC at HPS P to neutral W then HPS BK to neutral W If 115VAC is present at HPS P and not at HPS BK HPS is open See HPS Diagnosis below If 115VAC is present at HPS check for 10 5VAC at CB K2 1 R to CB K2 2 R If 10 5VAC is not present confirm that the cleaning valve interlock switch is closed Next check CT continuity If open replace b HPS Diagnosis Confirm FM is energized and fan blade turns freely Confirm condenser coil is not dirty Confirm that the location meets installation requirements See the appliance s instruction manual for details Confirm there are no restrictions in the refrigeration circuit Harvest Cycle HGV strainer or check valve Freeze Cycle FM FMR TXV HM LLV WRV strainer check valve drier damaged line set or fitting and fan blade for binding Let refrigeration circuit pressures equalize If HPS does not reset and pressures are equalized replace HPS If pressures are not equalized reclaim refrigerant and diagnose refrigeration circuit restriction 4 1 Minute Fill
100. ls to open freeze check for proper refrigerant pressures See Specification and Performance Data If refrigerant pressures are correct and WRV does not open adjust or replace as needed See IV C Water Regulating Valve Adjustment water cooled models 26 h Freeze Termination Diagnosis After 5 in freeze disconnect K5 FS connector 15 sec later appliance should switch out of the freeze cycle 15 second delay after FS opens before terminating the freeze cycle If appliance remains in freeze longer than 15 sec after FS removed replace CB If appliance switches with FS removed but would previously not switch out of freeze with FS connected long freeze beep alarm see Float Switch Check and Cleaning Note Normal freeze cycle will last 20 to 40 min depending on model and conditions Cycle times and pressures should follow performance data provided in this manual See VIII A Specification and Performance Data i Short Freeze Cycle Diagnosis Confirm water tank fills and overflows during 1 min fill and harvest cycles not check water supply filters shut off valve WV screen If water tank empties before 5 min timer terminates and freeze cycle is short check that CV is not leaking by water flowing down the potable drain If CV is leaking by remove and clean CV replace rubber seat and spring if necessary If water tank is full see Float Switch Check and Cleaning for erratic operati
101. may result in severe damaoe to the appliance BC 15 factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations Note On G control boards a jumper 4A4883G01 must be placed on CB red connector Otherwise CB yellow OPEN LED is on and appliance will not start To check BC 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 5 Hold your hand around the bulb to warm it up 3 Remove the control box cover and base cover then clear any ice away from BC bulb Disconnect BC wires from BC switch 6 Check for continuity across BC switch If closed continue to step 6 open adjust or replace BC 7 With the multimeter test leads still in place hold ice on BC bulb to lower the temperature Within 10 sec BC switch should open If it remains closed adjust or replace BC Legend BC thermostatic bin control 36 2 Mechanical Control Check a Mechanical Bin Control Check This appliance uses a lever actuated proximity switch to control the ice level in the storage bin No adjustment is required To check follow the steps below 1 Turn off the power supply 2 Remove the front panel then move the control switch to the OFF position 3 Remove the control box cover then clear any ice away from
102. nents fasteners and thumbscrews securely in place after the icemaker is serviced Make sure that none have fallen into the dispenser unit ice storage bin Make sure all food zones in the icemaker and dispenser unit ice storage bin clean after service Refrigeration Circuit Service Information A WARNING e Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA certified service personnel 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 NOTICE Always recover the refrigerant and store it in an approved container Do not discharge the refrigerant into the atmosphere Do not leave the system open for longer than 15 min when replacing or servicing parts The Polyol Ester POE oils used in R 404A applications can absorb moisture quickly Therefore it is important to prevent moisture from entering the system when replacing or servicing parts e 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 e When brazing protect the drier
103. ng FS 7 Pump Out Cycle LEDs 1 3 and 2 10 20 second pump out Timing of the first pump out is dependent on CB E CB first pump out is after the first freeze cycle G CB first pump out is determined by S4 dip switch 5 amp 6 See the table below E amp G Control Board Settings tstPump Out 4 Dip Switch Settin T 9 Control Board G Control Board No Frequency No 5 After 1st freeze cycle Comp and FMR continue HGV energizes If S4 dip switch 3 amp 4 are set to 3 off and 4 LED 4 turns on and WV energizes FM and de energize PM stops for 2 sec then reverses for 10 20 sec depending on pump out timer S4 dip switch 3 amp 4 setting When the pump out timer terminates pump out is complete The pump out frequency control S4 dip switch 5 amp 6 is factory set and generally no adjustment is required However the pump out frequency control can be set to have a pump out occur every cycle or every 2 5 10 cycles For details see III C 4 Pump Out Frequency Control S4 dip switch 5 amp 6 Pump Out Diagnosis the freeze cycle before pump out see table above disconnect CB black K5 connector FS connector after 5 min of freeze Check that PM stops and re starts and water is flowing down the drain through CV If PM does not stop and re start check that CB LEDs 1 3 and 2 are on If not replace CB If LEDs 1 3 and 2 are on and PM does not
104. nus OGL 2g L ON sjueuodujoo V 51061009 Joye 295 OL pue 13497 221 ayewa 2 IIna 14 lt umopinus 4 eouenbes uwopinus 3 21 eorueuoeui 3a UIq 9g Jo wWNAdO MOJA 31 038019 43919 uo 31 MOJA 7 sjueuoduuoo Jo qa1 dXd38S0719 JAIN senunuoo q31 Od MOJA jpped 1olenioe uedo JAN BJOAQ 114 lnullN I L OL uonejedo 1 1xeu BU JO pue eu sejyeuiuue uono loiud uoys UILU G eu eJojeq 295 S 15 Je pejeAnoe JI oes S 2 2 92994 e JO pue eu ye w BJOAD L peziB1eue e b ero azooij oui SL o Jexeuieo 2 dn 10 1seAJeu BU JO pue eui 1y 9 9 2 umopinys UoneAnoe 08S 6 2 4 e Aejaq UMOPINUS L Heu eouenbes
105. oard a Thermistor connection loose K3 See Control Board Check Defective 6 Thermistor a Loose disconnected or defective See Thermistor Check 7 Hot Gas Valve Erratic or closed 8 Inlet Water Valve 8 Screen or orifice clogged 44 1 Evaporator a Scaled up dirty 2 Float Switch See ILE Float Switch Check ene Cleaning c Defective switch 3 Inlet Water Valve 4 Hot Gas Valve 5 Condenser a Clogged 6 Control Board a Float switch connection loose 5 See Control Board Check Defective 7 Refrigerant Charge Low 8 Thermostatic Expansion Valve Bulb loose b Defective a Inefficient or off 10 Pump Motor a RPM too slow 11 Liquid Line Valve a Erratic or restricted 12 Headmaster C P R a Not bypassing remote models 45 Controls and Adjustments e Hoshizaki exclusive control board is employed and KMH series appliances All models are pretested and factory adjusted e For a control board check procedure see Control Board Check NOTICE e 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 icemaker when handling or replacing the control board e Do not touch the electronic devices on the control board or the back of the control board e Do not chan
106. on We reserve the right to make changes in specifications and design without prior notice A Specification and Performance Data Pressure data is recorded at 5 min into freezing cycle The data not in bold should be used for reference only 1 13015 SPECIFICATION SHEET AMPERAGE 12 4 A 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 ELECTRIC W kWH 100 lbs 2250 4 63 2160 3 9 WATER gal 24HR gal 100 Ibs 183 15 7 605 45 5 ICE PRODUCTION PER CYCLE 29 8 Ibs 13 5 1440 REFRIGERANT CHARGE R404A 3 Ib 15 5 oz 18009 PERFORMANCE DATA APPROXIMATE ICE PRODUCTION 24 F C 70 21 80 27 90 32 lbs 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 m3 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 2 100 38 SUCTION PRESSURE 70 21 80 27 90 32 PSIG 2 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 20 300 BTU h 90 F 32 C WT 70 F 21 66 2 13015 SPECIFICATION SHEET SUPPLY VOLTAGE 208 230 60 3 9 5 5 Freeze AT 104 F WT 80 F MINIMUM CIRCUIT 20 MAXIMUM
107. onnection Overview Wire Harness Bin Control Cable Connector to Connector Wire 5 for upper unit Wire Harness Control Board 1 Red Connector 7 Saddle Bin Control Cable Bracket Bin Control Cable Bin Control Bracket Thumbscrews Bin Control Assembly 2b Stacked Mechanical Bin Control Upper Unit Connection Overview Lower Unit Wire Harness Connector B to Connector B for A Control 1 Wire Cable Connector q Connection Detail Wire Harness Connector A E J Control Board Red K4 Connector L 24 Upper Unit Connection Detail Upper Unit Wire Harness Connector A Upper Unit Wire Harness Connector B not used FRS Upper Unit Wire Harness Control Board Red K4 Connector a Lower Unit Wire Harness Bin Control Wire Saddle Cable Bracket Control Board Red K4 Connector Upper Unit Wire Harness Connector not used El Lower Unit Wire Upper Unit Connector B Wire Harness Connector A II D 1 Dispenser Unit Ice Storage Bin and Icemaker Setup and 1 2 Bin Control Installation for the Lower Unit Connection ER gio Control Boar
108. pump out frequency control 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 the control board On E control boards the first pump out is after the first freeze cycle On G control boards the first pump out is dependent on S4 dip switch 5 amp 6 See the table below E amp G Control Board fsPum ot 4 Dip Switch Settin ip Swi ing Pump Out E Control Board G Control Board After ist freeze cycle 5 Bin Control Selector Harvest Pump Timer Operation 54 dip switch 7 Depending on the control board S4 dip switch 7 is used for either bin control selection or harvest pump timer operation e E Control Board Bin Control Selector thermostatic or mechanical e G Control Board Harvest Pump Timer Operation a Bin Control Selector E Control Board NOTICE Do not adjust This dip switch must be left in the factory default position or the icemaker will not operate correctly When set to on position on an icemaker with a thermostatic bin control a 5 beep alarm sounds open circuit and the icemaker does not operate E Control Board 4 Dip Switch Settin p Bin Control Mechanical requires resistor wire harness Thermostatic 54 b Harvest Pump Control Board NOTICE Factory set for proper operation Do not adjust Adjustment outside of the factory default
109. setting may result in damage to the appliance Depending on the harvest pump timer setting the pump motor either stays off or is energized the last 50 seconds of harvest When the pump motor is energized water circulates over the evaporator The harvest 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 in the on position and harvest begins X11 and X10 relays energize A latching circuit is created through the X11 and X10 relays For further details see VIII C Wiring Diagrams 50 sec before harvest termination LED 4 turns off inlet water valve and X11 relay de energize X10 relay remains energized through the latching circuit Next LED 3 turns on and control board K1 connector pin 5 DBU wire energizes energizing the pump motor for the last 50 sec of harvest G Control Board S4 Dip Switch Setting Pump Motor Time or 6 Factory Use 54 dip switch 8 Factory set for proper operation Do not adjust This must be left in the factory default position 7 Freeze Timer 54 dip switch 9 4 10 NOTICE Adjust to proper specification or the icemaker 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 harv
110. tings Note When checking high voltage 115VAC always choose a white W neutral wire to establish a good neutral connection e On models with a main transformer the neutral W is provided through MT To confirm a good neutral check for GOVAC from white W neutral to ground GND If 60VAC is present neutral is good If 60VAC is not present check 208 230VAC main power supply to MT If 208 230VAC is present check MT continuity When checking voltage from the CB K1 connector 10 pin connector pull CB K1 connector out slightly to allow room for multimeter test leads contact 1 Turn off the power supply then access the control box Move the control switch to the OFF position Clear any ice from TBC 2 Check that BC is closed and the 115VAC 10 fuse is good 23 1 and Control Board without Harvest Pump Timer Diagnosis 3 Power On Turn on the power supply then move the control switch to the ICE position A 5 sec delay occurs e Control Board CB red POWER LED turns on e Control Board CB red POWER LED and green CLOSED LED turn on Note CB red POWER LED remains on unless the 10 5VAC power supply is interrupted K2 connector e Check CB using the steps in Control Board Check e G CB If yellow OPEN LED is on check that CB red jumper is in place a Power On Diagnosis If CB red POWER LED is off confirm closed TBC and 10A fuse
111. ts with a 15 I min or 11 I min water valve The 15 I min water valve is part number 3U0111 01 and has J248 030 stamped on the side of the valve facing the rear of the unit The 11 water valve is either part number 4A1176 04 or 4A5251 04 and has the part number stamped on the side of the valve facing the front of the unit SPECIFICATION SHEET AC SUPPLY VOLTAGE 208 230 60 1 3 wire with neutral for 115V AMPERAGE 12 8 5 Min Freeze AT 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 F ELECTRIC W kWH 100 lbs 2700 4 30 2610 4 00 WATER gal 24HR gal 100 Ibs 375 24 9 785 50 2 ICE PRODUCTION PER CYCLE 31 2 Ibs 14 2 kg 1440 pcs TOTAL REFRIGERANT CHARGE R404A 24 Ib 14 6 oz 113009 REFRIGERANT CHARGE BY UNIT Icemaker 15 Ib 3 4 oz Cond Unit 9 Ib 11 2 oz PERFORMANCE DATA SHEET 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 CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 22 800 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 300 AT 90 F 32 C WT 70 F 21 CONDENSER VOLUME
112. turn to step above Note Appliance continues to cycle until MBC is satisfied or power is switched off The appliance always restarts at the 1 min fill cycle 9 Shutdown G Control Board a Thermostatic Bin Control TBC When the appliance is running hold ice in contact with the thermostatic bulb TBC switch opens within 10 sec shutting down the appliance TBC is factory set and generally no adjustment is required However adjustment may be needed in some conditions particularly at higher altitude locations Diagnosis II D 1 Thermostatic Bin Control Check CB red connector must have the jumper in place When the jumper is place the green BC CLOSED LED remains on If the jumper is not in place yellow BC OPEN LED turns on and the icemaker turns off and remains off until the jumper is replaced in its original position NOTICE CB red K4 connector jumper 4A4883G01 must be in place b Mechanical Bin Control MBC See 11 0 2 Mechanical Bin Control Check Legend BC bin control CB control board Comp compressor CR compressor relay CT control transformer CV check FM fan motor FWR fan motor remote FS float switch HGV hot gas valve HM headmaster C P R HPS high pressure switch LLV liquid line valve MBC mechanical bin control MC magnetic contactor PM pump motor TBC thermostatic bin control TXV thermostatic expansion valve WRV water regulating valve WV inlet water valve 34
113. ual carefully to reduce the risk of costly water damage In areas where water damage is a concern install in a contained area with a floor drain Install the appliance in a location that stays above freezing Normal operating ambient temperature must be within 45 F to 100 F 7 C to 38 C Do not leave the appliance on during extended periods of non use extended absences or in sub freezing temperatures To properly prepare the appliance for these occasions follow the instructions in VI Preparing the Icemaker for Periods of Non Use Do not place objects on top of the appliance The dispenser unit ice storage bin is for ice use only Do not store anything else in the dispenser unit ice storage bin Construction and Water Refrigeration Circuit Diagram A KM Construction 1 Air Cooled Models SAH 3 Spray Tubes Low Side Service Valve Inlet Water Valve High Side Service Valve Evaporator Assembly Thermostatic Expansion Valves Water Supply Inlet lt lt 2 Hot Gas Valve Check Valves refrigeration Cleaning Valve a kg Ts air 1 _ Condenser Check 77 S TTI Wu TIAN aes water CLA _ Fan Blade Water Pump CSS 5 77 b K Fan Motor Float Switch
114. ube and the flush tube 9 Move the control switch to the ICE position 10 Replace the insulation panel and front panel in their correct positions 11 Turn on the power supply to start the automatic icemaking process Legend CB control board FS float switch Vent Flush Shaft Float Switch Housing fa Float _ Retainer Rod Rubber Boot and Hose Fig 4 40 Thermistor Check To check thermistor resistance follow the steps below 1 3 4 5 6 Turn off the power supply Remove front panel Move the control switch to the OFF position Remove the control box cover Remove the thermistor from the refrigerant tubing Immerse the thermistor sensor portion in a glass containing ice and water for 2 or 3 min a s sa Disconnect the thermistor connector from CB K3 connector and check the resistance between thermistor leads Normal range is 4 7 to 6 2 If outside the normal range replace the thermistor IV B Component Service Information If within the normal range continue to the next step 7 Replace the thermistor in its correct position IV B Component Service Information 8 Reconnect the thermistor connector to CB K3 connector 9 Replace the control box cover in its correct position 10 Move the control switch to the ICE position 11 Replace the front panel in its correct position 12 Turn on the power suppl
115. ueis efits Sse 10 UY 6 peziBjeue AM 2 6 4 8 seuoeei pezibjeue ASH uedo 64 YNA 140 5 L pezifieue AM 49949 SA pezibieue 54 99uo 54 0950 T dund S AIBH Z 8 YMS dip 5 Ul somey UIW E gt 10159 OZ S AIBU e uonisod 991 JO 1no 7 uos dip rS 1snfpe jou oq 4enuous SI J A U IUA uos dip rS 295 OS somey Jo eui JO uiu 9 AM ajoA9 1114 ajoAQ 15 Z Heu 1seAJeH YUM 041002 JOYEM 1 UI A A Jojouu duind INd PINDI AT1 10 U9IIMS 1801 64 UBJ YIWA upj INd 58 dnes sdeis anun 91942 20 Thermostatic Control Shutdown 1 29 ul si y ay U UM uo Q31 35010 Od 31ON peziB1eue ep sjueuodujoo pesop 981 uedo 981 291 501002 2 BJOAD SINUNN L L OL 2491 w 114 INUN L ye syes ayewa peziBieue ep Si
116. ul r bi RO PES AS OL INdINO EH JOWJOJSUBI JsueJ ONJUOD PISA rosa 1 1 Le iv Fl tae oE Pn T i i in i H oi Waco 31 P ONM 11314 FEYL 335 27 pn FT l I WS 19014 Jal 33 ege p 52 E 1 3874 TOUINOD NIE 1 3 NON 3 0 0 1 HS LOS L WM a 13015 0 0 0 102 b KM 1301S 0 1 to D 0 0189 ZZ 2 22084 umno OISd 2 21 ANUS Ye JeuuojsueJ 1 OISd 22988 S polN pue 1 YOUMS 1nss uq uBiH ul VT NOLUSHI UAW 153 H il 33 33 33 H 440 440 440 44 14 14 am s 1113 1113 00H 21000 81 F 4 nk H lt PLAN M pu N pani ae n 6 1 Welk
117. w Chart A Sequence of Operat 1 and G Control Board without Harvest Pump Timer Operation 295 02 01 10 S SI A 1 u u 2 uedo S4 06s 2 10 sezif1eue ep Wd pezibjeue AT1 sugs jown Pezi6jeue AM pezi amp ieue pezifJeue W4 1S AIBH 5501 10 U 69 pezi amp bjeue uedo S4 gt senunuoo YIN S amp U 2 6 4 8 5 peziB1eue senunuoo Jeumezeej Senunuoo dwog 2 dwog AM J UI AM duind INd pinbil AT1 10U A5H 12064 uonisod 591 paved si uos pesa JOU 4exeuleo eu SIMJ UYIO Buizniues pue saye au 910 AIquu sse y Jo eui pue PISINO eui uloq J ZIIUBS pue y u do eui lquu sse eu JO pue pasoj Burueejo eui eui p ilddns amod uonisod 991 u U UM eui pue pesn SI YMS eui uo uonisod 941 UONISOd HSVN ul SI u31IWS
118. watts APPROXIMATE WATER CONSUMPTION PER 24 HR m3 day FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE 70 21 80 27 90 32 PSIG kg cm2G 100 38 TOTAL HEAT OF REJECTION FROM CONDENSER 28 000 BTU h AT 90 F 32 C WT 70 F 21 C TOTAL HEAT OF REJECTION FROM COMPRESSOR 3 300 BTU h AT 90 F 32 WT 70 F 21 C WATER FLOW FOR CONDENSER 103 gal h AT 100 F 38 C WT 90 F 32 C PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG 96 32 KMH 2000SWH3 SPECIFICATION SUPPLY VOLTAGE 208 230 60 3 7 7 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC amp WATER CONSUMPTION 90 70 70 50 F ELECTRIC W kWH 100 lbs 2330 3 2 2280 2 9 POTABLE WATER gal 24HR gal 100 Ibs 296 17 1 540 29 0 WATER COOLED CONDENSER 1369 79 1001 54 gal 24HR gal 100 Ibs ICE PRODUCTION PER CYCLE 48 1 Ibs 21 8 2160 REFRIGERANT CHARGE R404A 3 Ib 1 4 oz 14000 PERFORMANCE DATA SHEET AMBIENT TEMP WATER TEMP F C APPROXIMATE ICE PRODUCTION PER 24 HR 50 10 70 21 90 32 Ibs day kg day APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR gal day 3 FREEZING CYCLE TIME min HARVEST CYCLE TIME min HEAD PRESSURE PSIG kg cm2G SUCTION PRESSURE PSIG _ kg cm2G
119. watts 100 38 APPROXIMATE WATER 70 21 CONSUMPTION PER 24 HR 80 27 90 32 gal day m3 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 PSIG kg cm2G SUCTION PRESSURE PSIG kg cm2G TOTAL HEAT OF REJECTION FROM CONDENSER 17 600 BTU h AT 90 F 32 WT 70 F 21 TOTAL HEAT OF REJECTION FROM COMPRESSOR 2 500 BTU h AT 90 F 32 C WT 70 F 21 CONDENSER VOLUME 133 CU IN URC 14F 70 6 KM 1301SRH3 with URC 14F SPECIFICATION SHEET SUPPLY VOLTAGE 208 230 60 3 10 7 5 Min Freeze 104 F WT 80 F MINIMUM CIRCUIT AMPACITY 20A MAXIMUM FUSE SIZE 20A ELECTRIC amp WATER CONSUMPTION 90 70 F 70 50 F ELECTRIC W kWH 100 lbs 2140 4 3 2090 3 8 WATER gal 24HR gal 100 Ibs 192 16 0 463 34 6 ICE PRODUCTION PER CYCLE 30 7 Ibs 13 9 1440pcs TOTAL REFRIGERANT CHARGE R404A 10 165 5 8 oz 47009 REFRIGERANT CHARGE BY UNIT Icemaker 5 Ibs 15 2 oz Cond Unit 4 Ibs 6 5 oz PERFORMANCE DATA APPROXIMATE ICE AMBIENT TEMP WATER TEMP F C PRODUCTION PER 24 HR SF C 50 10 70 21 90 32 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 80 27 90 32 m3 day 100 38 FREEZING CYCLE TIME 70 21 80 27 90 32 min 100 38 HARVEST CYCLE TIME min HEAD PRESSURE 70 21 80 27 90 32 PSIG
120. y 13 Once the harvest cycle starts Comp energizes begin timing the harvest cycle 14 The harvest timer and harvest cycle should terminate within 2 to 5 min If the harvest cycle does not terminate within 2 to 5 min replace CB Legend CB control board Comp compressor Thermistor Lead Cable Tie AZ J y Foam Insulation Thermistor Holder Fig 5 41 Diagnostic Tables 1 No Ice Production No Ice Production Possible Cause 1 Power Supply a Off blown fuse or tripped breaker b Not within specifications 2 Main Transformer and later and all 3 phase models 4 Thermostatic Bin Control a Tripped with bin filled with ice See ILD Bin Control Check 5 Control Switch In OFF or WASH position 6 High Pressure Switch 7 Control Transformer Coil winding open or shorted a 115VAC 10 5VAC a 8 Control Board See Control Board Check Yellow BC OPEN LED on bin full G control board 9 Mechanical Bin Control 10 Water Supply 3 e e Water valve open in freeze cycle 12 Float Switch Float does not move freely See Float Switch Check Defective and Cleaning 13 Compressor Compressor relay magnetic contactor contacts bad or coil winding open Start capacitor or run capacitor defective single phase model Coil winding open b b b b b 14
121. y no adjustment is required However the pump out frequency control can be set to have a pump out occur every cycle or every 2 5 or 10 cycles For details see 4 Pump Out Frequency Control 54 dip switch 5 amp 6 Pump Out Diagnosis In the freeze cycle before pump out see table above after 5 min of freeze disconnect CB black K5 connector FS connector Check that PM stops and re starts and that PM rotation is correct water flowing down the drain through If PM does not stop and re start check that CB LEDs 1 3 and 2 are not replace CB If LEDs 1 3 and 2 are on and PM does not energize check for 115VAC at CB K1 5 DBU to neutral W If 115VAC is not present replace CB If 115VAC is present check that X10 relay is de energized If not check X11 relay status If X11 relay is energized replace CB If X11 relay is de energized and X10 relay is energized replace X11 relay contacts sticking If X10 relay is de energized check for 115VAC at terminal 6 DBU to neutral W and terminal 2 DBU to neutral W If 115VAC is present on terminal 6 DBU and not on terminal 2 DBU replace X10 relay If PM is energized and rotating in pump out rotation make sure the drain line is not clogged and that CV is clean and operating properly Confirm FM and LLV de energize If FM or LLV are energized with LEDs 1 3 and 2 on replace CB 33 8 Normal Harvest Cycle Same as the initial harvest cycle Re

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