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MODULAR CRESCENT CUBER KM-500MAH KM-500MWH KM …

SERVICE MANUALISSUED:NOV. 7, 2002KM-500 MAHKM-500 MWHKM-500 MRHMODULAR CRESCENT CUBERR eliability is abeautiful thingTMREVISED:DEC. 16, 2003 NUMBER:731042 IMPORTANTOnly qualified service technicians should attempt to service or maintain this service or maintenance should be undertaken until the technician has thoroughlyread this Service AMERICA, Highway 74 SouthPeachtree City, GA 30269 Attn: HOSHIZAKI Technical Support DepartmentPhone: 1-800-233-1940 Technical Service(770) 487-2331 Fax:(770) 487-3360 NOTE: To expedite assistance, all correspondence/communication MUST include the following information: Model Number Serial Number Complete and detailed explanation of the problemHOSHIZAKI provides this manual primarily to assist qualified service technicians in theservice and maintenance of the the reader have any questions or concerns which have not been satisfactorilyaddressed, please call or write to the HOSHIZAKI Technical Support Department Please review this manual.

REFRIGERANT CHARGE R-404A, 4 lbs. 0 oz. ( 1800 g ) ( Icemaker 2 lbs. 1.5 oz. Cond. Unit 1 lb. 14 oz. ) DESIGN PRESSURE High 467 PSIG, Low 230 PSIG P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-out ( Internal ) COMPRESSOR PROTECTION Auto-reset Overload Protector ( Internal ) REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

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Transcription of MODULAR CRESCENT CUBER KM-500MAH KM-500MWH KM …

1 SERVICE MANUALISSUED:NOV. 7, 2002KM-500 MAHKM-500 MWHKM-500 MRHMODULAR CRESCENT CUBERR eliability is abeautiful thingTMREVISED:DEC. 16, 2003 NUMBER:731042 IMPORTANTOnly qualified service technicians should attempt to service or maintain this service or maintenance should be undertaken until the technician has thoroughlyread this Service AMERICA, Highway 74 SouthPeachtree City, GA 30269 Attn: HOSHIZAKI Technical Support DepartmentPhone: 1-800-233-1940 Technical Service(770) 487-2331 Fax:(770) 487-3360 NOTE: To expedite assistance, all correspondence/communication MUST include the following information: Model Number Serial Number Complete and detailed explanation of the problemHOSHIZAKI provides this manual primarily to assist qualified service technicians in theservice and maintenance of the the reader have any questions or concerns which have not been satisfactorilyaddressed, please call or write to the HOSHIZAKI Technical Support Department Please review this manual.

2 It should be read carefully before the icemaker is servicedor maintenance operations performed. Only qualified service technicians should serviceand maintain the icemaker. This manual should be made available to the technicianprior to service or PAGEI. 51. KM-500 MAH (Air-cooled) .. 52a. KM-500 MWH (Water-cooled) Serial #L00001D - M20960C .. 62b. KM-500 MWH Serial #M30961D .. 73. KM-500 MRH (Remote air-cooled) .. 84. CONDENSER UNIT, URC-6F .. 9II. GENERAL 111. CONSTRUCTION .. 11[a] KM-500 MAH (Air-cooled) .. 11[b] KM-500 MWH (Water-cooled) .. 12[c] KM-500 MRH (Remote air-cooled) .. 132. CONTROLLER BOARD .. 14[a] SOLID-STATE CONTROL .. 14[b] CONTROLLER BOARD .. 14[c] SEQUENCE .. 18[d] CONTROLS AND ADJUSTMENTS .. 20[e] CHECKING CONTROLLER BOARD .. 243. MECHANICAL BIN CONTROL .. 26[a] PROXIMITY 26[b] EXPLANATION OF 26[c] 27 III.

3 TECHNICAL 281. WATER CIRCUIT AND refrigerant CIRCUIT .. 28[a] KM-500 MAH .. 28[b] KM-500 MWH .. 29[c] KM-500 MRH .. 302. WIRING DIAGRAMS .. 31[a] KM-500 MAH and KM-500 MWH .. 31[b] KM-500 MRH .. 333. TIMING CHART .. 354. PERFORMANCE DATA .. 37[a] KM-500 MAH .. 37[b] KM-500 MWHS erial #L00001D - M20960C .. 38[c] KM-500 MWH Serial #M30961D .. 39[d] KM-500 MRH .. 404IV. SERVICE DIAGNOSIS .. 411. NO ICE PRODUCTION .. 412. EVAPORATOR IS FROZEN UP .. 423. LOW ICE PRODUCTION .. 424. ABNORMAL ICE .. 455. OTHERS .. 45V. REMOVAL AND REPLACEMENT OF COMPONENTS .. 461. SERVICE FOR refrigerant LINES .. 46[a] refrigerant RECOVERY .. 46[b] EVACUATION AND RECHARGE .. 462. BRAZING .. 473. REMOVAL AND REPLACEMENT OF COMPRESSOR .. 484. REMOVAL AND REPLACEMENT OF DRIER .. 505. REMOVAL AND REPLACEMENT OF EXPANSION VALVE .. 506. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND.

4 LINE VALVE .. 517. REMOVAL AND REPLACEMENT OF EVAPORATOR .. 528. REMOVAL AND REPLACEMENT OF WATER-REGULATING VALVE .. - WATER COOLED MODEL ONLY .. 549. ADJUSTMENT OF WATER-REGULATING VALVE .. - WATER COOLED MODEL ONLY .. 5510. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE .. REGULATOR ( ) - REMOTE AIR-COOLED MODEL ONLY .. 5611. REMOVAL AND REPLACEMENT OF THERMISTOR .. 5712. REMOVAL AND REPLACEMENT OF FAN MOTOR .. 5813. REMOVAL AND REPLACEMENT OF WATER VALVE .. 5914. REMOVAL AND REPLACEMENT OF PUMP MOTOR .. 5915. REMOVAL AND REPLACEMENT OF SPRAY TUBES .. 60VI. CLEANING AND MAINTENANCE INSTRUCTIONS .. 611. PREPARING THE ICEMAKER FOR LONG STORAGE .. 612. CLEANING AND SANITIZING PROCEDURES .. 63[a] CLEANING PROCEDURE .. 64[b] SANITIZING PROCEDURE .. 663. MAINTENANCE .. 675I. SPECIFICATIONS1. KM-500 MAHNote: We reserve the right to make changes in specifications and design without prior SUPPLY VOLTAGE115/60/1 AMPERAGE13 A ( 5 Min.)

5 Freeze AT 104 F / WT 80 F)MINIMUM CIRCUIT AMPACITY20 AMAXIMUM FUSE SIZE20 AAPPROXIMATE ICE PRODUCTIONA mbientW ATER TEMP. ( F)PER 24 ( F)507090 ( kg/day )70*499 (226)468 (212)428 (194) Reference without *marks80475 (216)427 (194)389 (176) 90468 (212)*393 (178)353 (160)100461 (209)384 (174)317 (144)SHAPE OF ICEC rescent CubeICE PRODUCTION PER lbs. ( kg ) 480 STORAGE CAPACITYN/AELECTRIC & W ATER CONSUMPTION90/70 F70/50 F ELECTRIC W (kWH/100 lbs.)1212 ( )1164 ( ) WATER ( lbs.)113 ( )250 ( )EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 30-5/6" (560 x 695 x 770 mm)EXTERIOR FINISHS tainless Steel, Galvanized Steel (Rear) WEIGHTNet 151 lbs. ( 69 kg ), Shipping 175 lbs. (80 kg)CONNECTIONS - ELECTRICP ermanent - Connection - WATER SUPPLYI nlet 1/2" FPT - DRAINO utlet 3/4" FPTCUBE CONTROL SYSTEMF loat SwitchHARVESTING CONTROL SYSTEMHot Gas and Water, Thermistor and TimerICE MAKING W ATER CONTROLT imer Controlled.

6 Overflow PipeCOOLING W ATER CONTROLN/ABIN CONTROL SYSTEMP roximity Switch with DelayCOMPRESSORH ermetic, Model AKA9455 ZXACONDENSERAir-cooled, Fin and tube typeEVAPORATORV ertical type, Stainless Steel and CopperREFRIGERANT CONTROLT hermostatic Expansion ValveREFRIGERANT CHARGER- 404a ,1 lb. 10 oz. ( 735 g )DESIGN PRESSUREHigh 467 PSIG, Low 230 BOARD CIRCUIT PROTECTIONHigh Voltage Cut-out ( Internal )COMPRESSOR PROTECTIONAuto-reset Overload Protector ( Internal ) refrigerant CIRCUIT PROTECTIONAuto-reset High Pressure Control SwitchLOW WATER PROTECTIONF loat SwitchACCESSORIES -SUPPLIEDN/A -REQUIREDIce Storage BinOPERATING CONDITIONSVOLTAGE RANGE104 - 127 VAMBIENT -100 FW A TE R S UP P LY TE MP .45 - 90 FWATER SUPPLY PRESSURE10 - 113 PSIG3/8" OD Pipe62a. KM-500 MWHS erial #L00001D - M20960 CNote: We reserve the right to make changes in specifications and design without prior SUPPLY VOLTAGE115/60/1 AMPERAGE10 A ( 5 Min.)

7 Freeze AT 104 F / WT 80 F)MINIMUM CIRCUIT AMPACITY20 AMAXIMUM FUSE SIZE20 AAPPROXIMATE ICE PRODUCTIONA mbientWATER TEMP. ( F)PER 24 ( F)507090 ( kg/day )70*463 (210)448 (203)423 (192) Reference without *marks80451 (205)428 (194)401 (180) 90448 (203)*411 (186)385 (175)100442 (200)405 (184)361 (164)SHAPE OF ICEC rescent CubeICE PRODUCTION PER lbs. ( kg ) 480 STORAGE CAPACITYN/AELECTRIC & WATER CONSUMPTION90/70 F70/50 F ELECTRIC W (kWH/100 lbs.)1130 ( )1100 ( ) WATER ( lbs.)135 (32)245 ( ) WATER COOLED CONDENSER723 (176)380 (82) ( lbs.)EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 30-5/16" (560 x 695 x 770 mm)EXTERIOR FINISHS tainless Steel, Galvanized Steel (Rear) WEIGHTNet 146 lbs. ( 66 kg ), Shipping 170 lbs. (77 kg.)CONNECTIONS - ELECTRICP ermanent - Connection - WATER SUPPLYI nlet 1/2" FPTC ondenser Inlet 1/2" FPT - DRAINO utlet 3/4" FPTC ondenser Outlet 3/8" FPT3/8" OD PipeCUBE CONTROL SYSTEMF loat SwitchHARVESTING CONTROL SYSTEMHot Gas and Water, Thermistor and TimerICE MAKING WATER CONTROLT imer Controlled.

8 Overflow PipeCOOLING W ATER CONTROLP ressure RegulatorBIN CONTROL SYSTEMP roximity Switch with DelayCOMPRESSORH ermetic, Model AKA9455 ZXACONDENSERW ater-cooled, Tube in tube typeEVAPORATORV ertical type, Stainless Steel and CopperREFRIGERANT CONTROLT hermostatic Expansion ValveREFRIGERANT CHARGER- 404a , oz. ( 375 g )DESIGN PRESSUREHigh 427 PSIG, Low 230 BOARD CIRCUIT PROTECTIONHigh Voltage Cut-out ( Internal )COMPRESSOR PROTECTIONAuto-reset Overload Protector ( Internal ) refrigerant CIRCUIT PROTECTIONAuto-reset High Pressure Control SwitchLOW WATER PROTECTIONF loat SwitchACCESSORIES -SUPPLIEDN/A -REQUIREDIce Storage BinOPERATING CONDITIONSVOLTAGE RANGE104 - 127 VAMBIENT -100 FWATER SUPPLY - 90 FWATER SUPPLY PRESSURE10 - 113 PSIG72b. KM-500 MWHS erial #M30961D -AC SUPPLY VOLTAGE115/60/1 AMPERAGE10 A ( 5 Min.)

9 Freeze AT 104 F / WT 80 F)MINIMUM CIRCUIT AMPACITY20 AMAXIMUM FUSE SIZE20 AAPPROXIMATE ICE PRODUCTIONA mbientWATER TEMP. ( F)PER 24 ( F)507090 ( kg/day )70*480 (218)471 (213)439 (199) Reference without *marks80473 (214)458 (208)417 (189)90471 (213)*448 (203)410 (186)100458 (208)439 (199)375 (170)SHAPE OF ICEC rescent CubeICE PRODUCTION PER lbs. ( kg) 480 STORAGE CAPACITYN/AELECTRIC & WATER CONSUMPTION90/70 F70/50 F ELECTRIC W (kWH/100 lbs.)1157 ( )1140 ( ) WATER ( lbs.)133 ( )268 ( ) WATER COOLED CONDENSER699 (156)394 (82) ( lbs.)EXTERIOR DIMENSIONS (WxDxH)22" x 27-3/8" x 30-5/16" (560 x 695 x 770 mm)EXTERIOR FINISHS tainless Steel, Galvanized Steel (Rear) WEIGHTNet 146 lbs. ( 66 kg ), Shipping 170 lbs. ( 77 kg )CONNECTIONS - ELECTRICP ermanent - Connection - WATER SUPPLYI nlet 1/2" FPTC ondenser Inlet 1/2" FPT - DRAINO utlet 3/4" FPTC ondenser Outlet 3/8" FPT3/8" OD PipeCUBE CONTROL SYSTEMF loat SwitchHARVESTING CONTROL SYSTEMHot Gas and Water, Thermistor and TimerICE MAKING WATER CONTROLT imer Controlled.

10 Overflow PipeCOOLING W ATER CONTROLP ressure RegulatorBIN CONTROL SYSTEMP roximity Switch with DelayCOMPRESSORH ermetic, Model AKA9455 ZXACONDENSERW ater-cooled, Tube in tube typeEVAPORATORV ertical type, Stainless Steel and CopperREFRIGERANT CONTROLT hermostatic Expansion ValveREFRIGERANT CHARGER- 404a ,15 oz. ( 425 g )DESIGN PRESSUREHigh 427 PSIG, Low 206 BOARD CIRCUIT PROTECTIONHigh Voltage Cut-out ( Internal )COMPRESSOR PROTECTIONAuto-reset Overload Protector ( Internal ) refrigerant CIRCUIT PROTECTIONAuto-reset High Pressure Control SwitchLOW W A TE R P ROTE CTIONF loat S wit c hACCESSORIES -SUPPLIEDN/A -REQUIREDIce Storage BinOPERATING CONDITIONSVOLTAGE RANGE104 - 127 VAMBIENT -100 FWATER SUPPLY - 90 FWATER SUPPLY PRESSURE10 - 113 PSIG83. KM-500 MRHNote: We reserve the right to make changes in specifications and design without prior SUPPLY VOLTAGE115/60/1 AMPERAGE15 A ( 5 Min.)


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