SPEC’S Technician’s Pocket Guide - Hoshizaki America, Inc.

1 This technicians Pocket Guide covers all mod-els using R-404A refrigerant. For additionaltechnical information, full parts and servicemanuals are available for review and downloadon the Tech Support page of the Hoshizaki for manuals, Tech-Tips and additional technical information onHoshizaki Tech-Spec s # 80024 purple Pocket guidefor older models using R-12 - SPEC STechnician s Pocket Guide # 80045 See Tech-Spec s # 80021 green Pocket guidefor newer models using guides can be downloaded from theHoshizaki web site or purchased through yourlocal Hoshizaki TABLE OF G EModel Identification 6 Warranty Information, Registration, 7KM Installation - General .. 8 Plumbing Requirements (All) .. 8 Condensate Drain .. 9 Water Flow Rates (All) .. 9 Electrical Connections .. 10 Optional Transformer Application.

2 11 Remote ApplicationsCondenser Application Chart R-404A .. 12 Remote Lines R-404A .. 12 Installation Diagram .. 13 Lineset Installation .. 14 Refrigerant System InformationSystem Charge R-404A .. 15 Cuber Charge Chart R-404A .. 16 Condenser Charge Chart .. 17 Refrigerant Oil .. 17 Flaker/DCM Charge Chart R-404A .. 18 Heat Load for AC & Cooling Tower R-404A .. 18 Component Technical Data E Board Setting Guide .. 19 Control Board Settings for R-404A .. 20 E Control Board Functions .. 21 E Board Label .. 22 Manual Reset Safeties .. 23 Automatic Voltage Protection .. 23 Compressor Data R-404A .. 24 Head Pressure Controls R-404A .. 26 Remote Head Pressure Control .. 27 High Pressure Switch Chart .. 28 Bin Control (Thermostatic) .. 28 Mechanical Control .. 29 Capacitive Control .. 30F/DCM 31KM Sequence of 32 Sequence Flow Chart.

3 34KM 10 Minute Check Out .. 35 Reservoir Flush System .. 37 Pumpout Check Valve .. 37 KML 37KM Control Switch .. 37 Control Board Fuse .. 38 Component ChecksFloat Switch .. 40 Thermistor .. 41212/20/032/20/0312/01/02 Component Checks PAGEC ontrol Board .. 42 Thermostatic Bin Control .. 44 Mechanical Bin .. 44 Capacitive Bin Control .. 45F/DCM Bin Control .. 46KM Control Transformer .. 47KM Pump Assembly .. 48 Inlet Water Valve .. 50 Diagnosing Water 52 Freeze Up Check List .. 55 Preventative Maintenance .. 57 Cleaning/Sanitizing Procedure .. 58KM Production Check .. 59 Cuber Water/Refg Circuit Reference 60 Performance Data KM-150 BAF .. 73KM-150 BAF-E .. 74KM-250B_F .. 75KM-280M_ 76KM-280M_F-E, KM-280 MAH .. 78 KML-350M_ 79KM-350 MWH Serial M3~ .. 80 KML-450M_ 81 KML-450 MWH Serial M2~.

4 82KM-500M_ 83KM-500 MWH Serial M30961D~ .. 84KM-500 MAF- 85 KML-600M_ 86KM-630M_ 87KM-630 MWH Serial M2 .. 88KM-630M_F-E, KM-630 MAH-E .. 89KM-900M_ 90KM-900 MWH Serial M3~ .. 91KM-900 MRF3 92KM-1300S_F/H .. 93KM-1300S_F3/H3 .. 94KM-1300 95KM-1300M_ 96KM-1300S_F-E .. 97KM-1600 98KM-1600 MRF3 99KM-1600 100KM-1600 SRF3 101KM-1800 SAH .. 102KM-1800 SAH3 .. 103KM-2000S_F3 .. 105312/20/032/20/0312/01/02 PAGEKM Wiring Diagram10-Pin Connector .. 106 Reference Chart R-404A .. 107 Flaker/DCMI nstallation - General .. 141 Internal Auger Design .. 142 Component Technical DataControl Transformer .. 143 Gear Motor Protection & Checkout .. 143 Auger Bearings & Inspection .. 146 Auger inspection & Bearing Replacement .. 147 Flaker Safety 148 Dual Float Switch.

5 149 Flaker Water FIll System .. 151 Flaker Timer Board .. 152 Flaker Sequence of Operation .. 153 Flaker Sequence Flow Chart .. 154 Flaker Periodic Flush .. 155 DCM Sequence of Operation .. 155F/DCM Production Check .. 155 Flush /Low Water Safety Flow Chart .. 156F/DCM Water/Refg Circuit Referance .. 157 Performance Data Flaker/DCMF-300 BAF .. 167F-450 MAF/H, MAF-C/H-C .. 168F-500 BAF, BAF-C .. 169F-800M_ 170F-800M_F- 173F-1000 174F-1000 MAF-22 .. 175F-1000M_F-50 .. 178F-1001 179F-2000M_ 180F-2000M_F- 181F-2000 MRF3/H3, MRF3- 182F-2000 MLF/H, MLF- 185 DCM-500 186 DCM-750B_ 187F/DCM Wiring Diagram Reference 188412/20/032/20/0312/01/02KM 1300S A F-E5 Hoshizaki MODEL NUMBERIDENTIFICATION CODEUNIT TYPEKML - Low Profile crescent CuberKM - crescent CuberF -FlakerDCM - Dispenser Cubelet MakerDB -Dispenser BinB-BinDM -Countertop DispenserPRODUCTIONA pproximate production/24 Hours@70 F Air/50 F WaterUNIT STYLEM-ModularS-StackableB -Self contained with binCONDENSER STYLEA -Air cooledW -Water cooledR -Remote air cooledGENERATIONM odel designationF= R404A refrigerant unitH= R404A and rounded frontSPECIAL MODEL DESIGNATIONC-CubeletE -European50-50 model number, serial number.

6 Electricalspecifications and refrigerant data are found onthe unit name plate. (See name plate)12/20/032/20/0312/01/02 NAMEPLATEHOSHIZAKI ICE MAKERMODEL NUMBERSERIAL NUMBERAC SUPPLY VOLTAGECOMPRESSORFA NMAXIMUM FUSE SIZEMAX. HACR BREAKER (USA ONLY)MAX. CIRC. BREAKER (CANADA ONLY)MINIMUM CIRCUIT AMPACITYDESIGN PRESSUREREFRIGERANTMOTOR-COMPRESSOR THERMALLY PROTECTEDSee the Nameplate for electrical and refrigeration specifi-cations. This Nameplate is located on the upper right handside of rear panel. Since this Nameplate is located on therear panel of the icemaker, it cannot be read when the backof the icemaker is against a wall or against another piece ofkitchen equipment. Therefore, the necessary electrical andrefrigeration information is also on the rating label, whichcan be easily seen by removing only the front panel of theicemaker.

7 We reserve the right to make changes in speci-fications and design without prior MAKERWITHOUTSTORAGE MEANS946 ZNSF COMPONENTvCHOSHIZAKI AMERICA, INC. Peachtree City, GA612/20/032/20/0312/01/02 WARRANTY INFORMATIONREGISTRATION- Two warranty registration cards are supplied with theequipment. They must be completed and sent in to initiatewarranty. The warranty begins on the date of installation ifregistration procedures are followed. If registration is notcompleted, the warranty date will be the date of sale ordate of shipment from the factory, COVERAGE-The warranty will cover defects in material or workman-ship under normal and proper use and maintenanceservice as specified by Hoshizaki . Coverage for parts andlabor is limited to the repair or replacement of parts orassemblies that in Hoshizaki 's opinion are CHART-ITEMPRODUCTPARTSLABORT otal UnitKM Cuber3 Years3 YearsF/DCM1 Year1 YearB/DB/DM2 Years2 YearsBev.

8 Valves1 Year1 YearCompressor & Air-KM Cuber5 Years3 YearsCooled CondenserF/DCM5 Years2 YearsEvaporator PlateKM Cuber5 Years5 YearsEvaporator, AugerGear Motor Years2 YearsEffective January 1, 1991 See Warranty Statement supplied with the unit for valid in United States, Canada, Mexico, PuertoRico, and U. S. Virgin factory for warranty in other countries, territories,or INSTALLATIONGENERAL -The ice machine is not intended for outdoor CONDITIONS - ALL MODELSITEMMODELRANGEV oltage Range115V units104 - V units187 - 264 or 230V198 - TemperatureAll45 - 100 Deg. Condenser -20 - 122 Deg. Supply Temperature All45 - 90 Deg. Supply PressureAll10 -113 PSIGA llow 6" clearance at rear, sides, and top for proper aircirculation and ease of maintenance or service. 20" topclearance for REQUIREMENTS -Water Supply:On KM units the water supply line size is critical due tothe water assisted harvest and the use of a ported inletwater valve SizeFitting SizeKM-150 - KM-9003/8" OD1/2 FPTKM-1300 - KM-24001/2" OD1/2 FPTAll F/DCM3/8" OD1/2 FPT*Water cooled condenser units require two separatesupplies sized as per list :MODELLine SizeFitting SizeAll Bins3/4" OD3/4 FPT All KM/KML s3/4" OD3/4 FPTF lakers3/4" OD3/4 FPT* DCM3/4" OD3/4 FPT**Some models have 2 drain Cooled Condenser outlet.

9 KM-150 BWF, KM-250 BWF, KM-1600 SWH,KM-1600 SWH3, KM-2000 SWH3 have 1/2 FPT other KM models, All KML, All Flaker, All DCM have 3/8 FPT recommends that the ice machine drain andbin drain be piped separately to the drain connection pointallowing 1/4" per foot DRAIN - The condensate drain is generally connected to the icemachine drain for simplicity. It can be piped separately tothe drain exit if 6" vent tee is recommended as per drawing:FLOW RATES -The minimum flow rate requirements for Hoshizaki icemaker units are as follows:KM-150/250/280/AII Flakers GPMKM-630/900/AII DCM' GPMKM-1300 GPMKM-2000 GPMUse this information when sizing a filter system for the icemachine : A good rule of thumb is to utilize a 3 GPM flow ratefilter for KM-150 through 900 and a 5 GPM flow rate filterfor KM-1300 or VOLT/1 PHASE208-230V/1 Phase units require a dedicated neutral dueto the use of 115V CONNECTIONS -115 VOLT/1 PHASE115V.

10 (2 wirew/gnd)208-230 VOLT/3 PHASEIf high leg is present connect to black transformer can be used to provide 115v dedicatedneutralrequires aninsulatedconductorwhich runsdirectly to (3 wirew/gnd) phase(3 wirew/gnd) CONDENSER 1012/20/032/20/0312/01/02 Note:All Electrical connections must be made in accordancewith all national and local electrical ApplicationAll 208-230V models include a 115V transformer with a208/230V selector switch. Be sure to select the positionthat best matches the incoming voltage prior to supplyingpower to the unit. (Voltage from the center tap to caseground will be due to the transformer circuit.)208/230V models include 115V controls. They require a115 / 208-230V circuit which has 4 wires including L1, L2,dedicated neutral, and a dedicated neutral is not available or the previous unitused a 3 wire circuit, (L1,L2, & gnd.)