Hoshizaki KM-260BAH Bedienungsanleitung

SERVICE MANUALHOSHIZAKISELF-CONTAINEDCRESCENT CUBER MODEL KM-201BAH KM-260BAH KM-201BWH KM-260BWHNO. F015-774ISSUED: MAR. 18, 2009REVISE

5II. GENERAL INFORMATION1. CONSTRUCTION[a] KM-201BAH, KM-260BAH Top PanelSide Panel (L) Front Cover Rear Panel

6[b] KM-201BWH Top PanelSide Panel (L) Front Cover Rear Panel Door Side Panel (R) Louv

7[c] KM-260BWH Top Panel Front CoverSide Panel (L) Rear Panel Door

8[d] ICEMAKING COMPARTMENT Spray TubeEvaporator Water Supply PipeSeparator Cube Guide Water Tank Overfl ow PipeDrain ValveC

92. SEQUENCE OF OPERATIONThe steps in the sequence are as outlined below. When power is supplied, a 5 second delay occurs at startup. Note that the or

10the control board setting, pump-out cycle occurs every cycle, or every 2nd, 5th, or 10th cycle (S1 dip switch 5 & 6).[e] NORMAL HARVEST CYCLELED

11Components Energized when the Control Switch is in the “SERVICE” PositionWhen in the “SERVICE” position, the control switch supplies power to the se

123. CONTROL BOARD* A HOSHIZAKI exclusive solid-state control is employed in crescent cubers.* All models are pretested and factory-adjusted.CAUTION

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14[b] FEATURESa) Maximum Water Supply Period - 6 minutesThe inlet water valve will be open during harvest for 6 minutes or the length of harvest minus

IMPORTANTOnly qualified service technicians should install, service or maintain the product. No service or maintenance should be undertaken until the

15seconds and the icemaker automatically stops. The control board will signal this problem using 7 beeps every 3 seconds.The icemaker also automatical

166Low Voltage(92Vac ± 5% or less)“POWER OK” LED will turn off if voltage protection operates.The control voltage safeties automaticlly reset when vol

17 Fig. 1 Fig. 2Freeze Timer (9 & 10)Water Saver Timer (7 & 8)Pump-Out Frequency Control (5 & 6)Pump-Out Timer (3 & 4)Harvest Ti

18Pump-out cycle always occurs on the 2nd harvest after startup. Then, depending on the pump-out frequency control setting (S1 dip switch 5 & 6),

19The freeze timer is factory adjusted, and no adjustment is required.Dip Switch SettingTime(minutes)No. 9 No. 10ON OFF 50OFF OFF 60OFF ON 70ON ON 100

20S2 Dip Switch SettingAnti-Slush ControlNo. 5 No. 6OFF OFF Activated (Ver. 1.0)ON OFF Activated (Ver. 2.0)OFF ON DeactivatedON ON DeactivatedControl

21m) Overfreeze Detection Control (S2 dip switch 5) [Program Ver. 3.2]Do not adjust. This must be left in the factory default position or the unit wil

221) Check the dip switch settings to assure that S1 dip switch 3, 4, 7, 8, 9 & 10 and S2 dip switch 1 through 6 are in the factory default positi

234) Check for resistance between the thermistor leads. Normal reading is within 4.7 to 6.2 k. Replace the thermistor if it exceeds the normal readi

245) Disconnect the bin control at the 2-pin connector attached to the black wires coming from the K1 connector (pins 4 & 5) on the control board

IMPORTANTThis manual should be read carefully before the icemaker is serviced or maintenance operations are performed. Only qualifi ed service technici

25b) CIRCULATEWhen the service switch is active and placed in the “CIRCULATE” position, power is supplied to the pump only. This operation can be used

26　　　　　　EvaporatorFloatSwitchCube GuideDrierThermistorSuctionLineWaterSupplyWater ValveSpray TubeFanCondenserExpansion ValveCompressorAccess ValveStra

27[b] KM-201BWH, KM-260BWH　　　　　EvaporatorFloatSwitchDrainCube GuideDrierCleaningValveThermistorSuctionLineWaterSupplyWater ValveSpray TubeWater Conden

282. WIRING DIAGRAM

293. TIMING CHART[a] KM-201BAH30sec 30sec 30sec 30sec 30sec30sec 30sec 30sec 30sec 30sec HARVEST CYCLEThermistor senses 9°Cafter 6 min to 8 min 30

30[b] KM-260BAH10sec 10sec 10sec 10sec 10sec10sec 10sec 10sec 10sec 10sec HARVEST CYCLEThermistor senses 9°Cafter 6 min to 8 min 50 secin harvest

31[c] KM-201BWH30sec 30sec 30sec 30sec 30sec30sec 30sec 30sec 30sec 30sec HARVEST CYCLEThermistor senses 9°C after more than8 min 30 sec

32[d] KM-260BWH10sec 10sec 10sec 10sec 10sec10sec 10sec 10sec 10sec 10sec HARVEST CYCLEThermistor senses 9°Cafter 6 min to 8 min 50 secin harvest

334. PERFORMANCE DATA[a] KM-201BAH70/21 201 91 190 86 176 8080/27 193 88 177 80 162 7390/32 190 86 165 75 150 68lbs./day kg./day 100/38 187 85 161 7

34[b] KM-260BAH70/21 263 119 245 111 227 10380/27 249 113 220 100 207 9490/32 245 111 200 91 185 84lbs./day kg./day 100/38 244 111 196 89 171 7870/2

[a] KM-201BAH, KM-260BAH ----------------------------------------------------------------- 26[b] KM-201BWH, KM-260BWH --------------------------------

35[c] KM-201BWH70/21 215 98 205 93 192 8780/27 207 94 192 87 180 8290/32 205 93 181 82 168 76lbs./day kg./day 100/38 203 92 178 81 157 7170/2180/279

36[d] KM-260BWH70/21 268 122 259 117 242 11080/27 261 118 247 112 228 10390/32 259 117 237 108 218 99lbs./day kg./day 100/38 254 115 233 106 201 917

37IV. SERVICE DIAGNOSIS1. DIAGNOSTIC PROCEDUREThe diagnostic procedure is basically a sequence check which can be used at unit start-up or for system

38starts after the thermistor temperature reaches 36°F (2°C). After this period, the freeze cycle operation is transferred to the fl oat switch for fre

39 2. NO ICE PRODUCTION PROBLEM POSSIBLE CAUSE REMEDY 1. OFF position. 1. Move to ON position. 2. Loose connections. 2. Tighten. 3. Bad contacts.

40 PROBLEM POSSIBLE CAUSE REMEDY [1] (Continued) l) Control Board 1. Defective. 1. See “II. 3. [d] CONTROL BOARD CHECK PROCEDURE”. 1. Connector d

41 PROBLEM POSSIBLE CAUSE REMEDY a) Inlet Water Valve 1. Diaphragm does not close. 1. Check for water leaks with icemaker off. Replace if necessary

42 3. EVAPORATOR IS FROZEN UP PROBLEM POSSIBLE CAUSE REMEDY 1. Leads shorted or defective switch. 1. Check and replace. a) Float Switch 2. Float doe

43 4. LOW ICE PRODUCTION PROBLEM POSSIBLE CAUSE REMEDY a) See chart 2 - [3] and check dirty air filter or condenser, ambient or water temperature, w

44 6. OTHER PROBLEM POSSIBLE CAUSE REMEDY 1. Completely disconnected and dropped inside bin. 1. Place in position. 2. Detector broken. 2. Replace.

[c] FUSE HOLDER ------------------------------------------------------------------------------- 66[d] CONTROL BOARD ----------------------------------

45V. REMOVAL AND REPLACEMENTWARNING1. This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, elec

463. 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 dire

478) If necessary, add any remaining charge to the system through the low-side. Use a throttling valve or liquid dispensing device to add the remainin

483. COMPRESSORWARNINGThe compressor terminal cover must be refitted in its correct position. Otherwise, operation under high temperature and high hum

4913) Install the new drier (see “4. DRIER”).14) Check for leaks using nitrogen gas (10 bar) and soap bubbles.15) Evacuate the system and charge it wi

507) Check for leaks using nitrogen gas (10 bar) and soap bubbles.8) Evacuate the system and charge it with refrigerant (see “1. [c] EVACUATION AND RE

51WARNINGAlways protect the valve body by using a damp cloth to prevent the valve from overheating. Do not braze with the valve body exceeding 275°F (

526. EXPANSION VALVEIMPORTANTThe water in the refrigeration circuit may exceed the capacity of the drier and freeze in the expansion valve. Always ins

53Fig. 5Remove Expansion Valve Cover fi rstCut ties to make Bulb removableBulb Insulation HoseExpansion ValveBulb7. AIR-COOLED CONDENSERCAUTION1. Alway

547) Install the new condenser, then attach the fan motor bracket.8) Remove the drier, then place the new drier in position.9) Braze all fi ttings whil

1I. SPECIFICATIONS1. SPECIFICATIONS[a] KM-201BAHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 6.1 A ( 5 Min. Freeze AT 104°F / WT 80°F)MAXIMUM FUSE SIZE N/AAPPR

556) 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

565) Install the new fan motor in the reverse order of the removal procedure.6) Refi t the panels in their correct positions.7) Plug in the icemaker or

574) Open the condenser water supply line drain valve. If connected to a closed loop water supply, also open the condenser return outlet drain valve.5

5811. ADJUSTMENT OF WATER REGULATING VALVE (WATER-COOLED MODEL)The water regulating valve (also called "water regulator") is factory-adjuste

5912. PUMP MOTOR1) Unplug the icemaker or disconnect the power source.2) Remove the top panel, rear panel and side panel (R).3) Disconnect the connect

6013. WATER VALVE1) Unplug the icemaker or disconnect the power source.2) Close the water supply tap.3) Remove the top panel, rear panel and side pane

6114. DRAIN VALVE, CLEANING VALVE1) Unplug the icemaker or disconnect the power source.2) Close the water supply tap.3) Remove the top panel, rear pan

6215. FLOAT SWITCH1) Unplug the icemaker or disconnect the power source.2) Remove the top panel, rear panel and side panel (R).3) Disconnect the conne

6316. BIN CONTROL SWITCH1) Remove the water tank (see “19. WATER TANK”). The bin control switch is located as shown below when viewed from the front.F

6417. THERMISTOR1) Unplug the icemaker or disconnect the power source.2) Remove the top panel and unscrew the rear panel.3) Disconnect the connector o

2[b] KM-260BAHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 7.6 A ( 5 Min. Freeze AT 104°F / WT 80°F)MAXIMUM FUSE SIZE N/AAPPROXIMATE ICE PRODUCTION Ambient WAT

6518. CONTROL BOX1) Unplug the icemaker or disconnect the power source.2) Remove the louver.3) Remove the two mounting screws, and pull the control bo

66[a] POWER SWITCH1) Disconnect the tab terminals and remove the nut securing the power switch.2) Install the new switch in the reverse order of the r

673) To prevent miswiring, check the terminal numbers and lead wire colors with the wiring label.[f] CONTROL BOARD TRANSFORMER1) Disconnect the connec

6820. CUBE GUIDE1) Remove the water tank (see “19. WATER TANK”).2) Lift off the cube guide out of the water tank.3) To refi t the cube guide, fi t the

69Fig. 19Spray TubeFront Separator Pin3) Remove the top cover and front cover. See Fig. 19.4) Disconnect the silicone hose from the spray tube, and

7022. SPRAY TUBE, WATER SUPPLY PIPE, SPRAY GUIDE1) Unplug the icemaker or disconnect the power source.2) Remove the top panel.3) Remove the top cover.

7123. DOOR1) Open the door.2) Unscrew and remove the hinges on both sides, and remove the door.3) Refi t the removed parts in the reverse order of the

72VI. CLEANING AND MAINTENANCE INSTRUCTIONSIMPORTANTEnsure all components, fasteners and screws are securely in place after any maintenance or cleanin

736) Pour the cleaning solution into the water tank. Move the control switch to the “SERVICE” position and the service switch to the “WASH” position.

74they were removed.5) Same as step 1.6) Pour the sanitizing solution into the water tank, and allow the sanitizer to sit for 10 minutes.7) Move the c

3[c] KM-201BWHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 5.5 A ( 5 Min. Freeze AT 104°F / WT 80°F)MAXIMUM FUSE SIZE N/AAPPROXIMATE ICE PRODUCTION Ambient WAT

75[c] AIR FILTER (AIR-COOLED MODEL)The plastic mesh air fi lter removes dirt or dust from the air, and keeps the condenser from getting clogged. As the

76“DRAIN” position.2) After 2 minutes, move the control switch to the “OFF” position.3) Open the door. Remove all ice from the storage bin and clean t

4[d] KM-260BWHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 7.5 A ( 5 Min. Freeze AT 104°F / WT 80°F)MAXIMUM FUSE SIZE N/AAPPROXIMATE ICE PRODUCTION Ambient WAT