Hoshizaki KM-61BAH Bedienungsanleitung

SERVICE MANUALHOSHIZAKISELF-CONTAINEDCRESCENT CUBER MODEL KM-61BAH KM-101BAH KM-151BAH KM-151BWHNO. M006-749ISSUED: FEB. 18, 2008REVISED

5II. GENERAL INFORMATION1. CONSTRUCTION[a] KM-61BAH, KM-101BAH Top Panel Separator Spray Tube Evaporator Door

6[b] KM-151BAH Top Panel Separator Spray Tube Evaporator Door Water Supply Tube

7[c] KM-151BWH Top Panel Evaporator Spray Tube Separator Water Supply Tube Door Tank

8[d] ICEMAKING COMPARTMENT Water Valve Cleaning ValveSpray Tube Water Supply Pipe Evaporator Pump MotorSeparatorCube Gui

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

10[d] DRAIN CYCLELEDs 4, 5, and 6 are on. Comp continues to run, HGV opens, and FMS de-energizes. PM stops. DV opens for 20 seconds to drain out the w

11

123. CONTROL BOARD* A HOSHIZAKI exclusive solid-state control is employed in KM-61BAH, KM-101BAH, KM-151BAH and KM-151BWH Crescent Cubers.* All model

13[a] CONTROL BOARD LAYOUT"H" Control Board Connector K7 TransformerConnector K3Magnetic ContactorConnector K4OpenPOWER OK LED(Lights when p

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 qualifi ed service technicians should install, service, and maintain the unit. No service or maintenance should be undertaken until the t

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 rese

171-800-233-1940 for recommendations. Keep in mind that setting the harvest timer to a longer setting will decrease 24 hour production.Dip Switch Sett

18e) Water Saver Timer (S1 dip switch 7 & 8)The water saver timer allows the water valve to close and the pump motor to circulate water in the tan

192) Move the control switch to the “ICE” position and check for proper control voltage. If the “POWER OK” LED is on, the control voltage is good. If

20Fig. 25. BIN CONTROLThis machine uses a lever-actuated proximity switch (mechanical bin control) to control the ice level in the storage bin. No adj

21Control SwitchFront View with Louver Removed7) Reconnect the 2-pin connector. Allow the machine to cycle into the freeze cycle. In the fi rst 5 minu

22Pump MotorWater TankCompressorWater CircuitRefrigeration CircuitIII. TECHNICAL INFORMATION1. WATER CIRCUIT AND REFRIGERANT CIRCUIT[a] KM-61BAH, KM-1

23[b] KM-151BAHPump MotorWater TankCompressorWater CircuitRefrigeration CircuitDrain ValveDrain OutletHot Gas ValveDrierExpansion ValveEvaporatorFanCo

24[c] KM-151BWHPump MotorWater TankCompressorWater CircuitRefrigeration CircuitDrain ValveDrain OutletHot Gas ValveExpansion ValveEvaporatorCondenserS

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

252. WIRING DIAGRAM[a] KM-61BAH

26[b] KM-101BAH

27[c] KM-151BAH, KM-151BWH

283. TIMING CHART30sec 10sec 30sec 10sec 30sec 10sec 30sec 30sec 10sec30sec 10sec 30sec 10sec 30sec 10sec 30sec 30sec 10sec20sec 20sec1°CTHERMISTORFRE

294. PERFORMANCE DATA[a] KM-61BAH70/21 71 32 65 29 58 2680/27 66 30 57 26 51 2390/32 65 29 50 23 44 20lbs./day kg./day 100/38 64 29 49 22 38 1770/21

30[b] KM-101BAH70/21 115 52 107 49 97 4480/27 109 50 97 44 87 4090/32 107 49 88 40 78 35lbs./day kg./day 100/38 106 48 86 39 69 3170/2180/2790/32wat

31[c] KM-151BAH70/21 146 66 139 63 129 5880/27 140 64 129 59 119 5490/32 139 63 121 55 111 50lbs./day kg./day 100/38 137 62 119 54 101 4670/2180/279

32[d] KM-151BWH70/21 146 66 141 64 136 6280/27 142 65 135 61 131 5990/32 141 64 130 59 125 57lbs./day kg./day 100/38 141 64 129 58 121 5570/2180/279

33IV. SERVICE DIAGNOSIS1. 10-MINUTE DIAGNOSTIC PROCEDUREThe 10 minute check out procedure is basically a sequence check which can be used at unit star

34starts 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

[c] KM-151BWH ----------------------------------------------------------------------------------- 242. WIRING DIAGRAM --------------------------------

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

36 PROBLEM POSSIBLE CAUSE REMEDY 1. Connector disconnected. 1. Reconnect. 2. Leads opened or defective switch. 2. Check and replace. a) Float Switch

37 PROBLEM POSSIBLE CAUSE REMEDY a) Water Supply Line 1. Water pressure too low and water level in Water Tank too low. 1. Check and get recommended

38 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

39 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

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

41V. REMOVAL AND REPLACEMENT1. SERVICE FOR REFRIGERANT LINES[a] SERVICE INFORMATION1) Allowable Compressor Opening Time and Prevention of Lubricant Mi

42type copper tubes are used in the shipped units.)7) Evacuation, Vacuum Pump and Refrigerant Charge [R134a]Never allow the oil in the vacuum pump to

438) Repeat steps 4) through 7), if necessary, until the required amount of refrigerant has entered the system.9) Close the Refrigerant Access Valve,

443. COMPRESSORWARNINGThe Compressor Terminal Cover must be refitted in its correct position. Otherwise, operation under high temperature and high hum

[d] CONTROL BOARD -------------------------------------------------------------------------- 66[e] POWER RELAY ---------------------------------------

45RECHARGE”).16) Connect the Solderless Terminals and replace the Terminal Cover in its correct position.17) Refi t the Louver and Rear Cover in their

465. HOT GAS VALVECAUTIONTo ensure optimum performance, use a copper tube of the same diameter and length for replacement of the hot gas circuit.IMPOR

47WARNINGAlways protect the valve body by using a damp cloth to prevent the valve from overheating. Do not braze with the valve body exceeding 274°F.8

486. EXPANSION VALVE - KM-151BAH, KM-151BWH ONLYIMPORTANTThe water in the refrigeration circuit may exceed the capacity of the Drier and freeze in the

49Fig. 6Remove Expansion Valve Cover fi rstCut ties to make Bulb removableTop Rear View with Top and Rear Panels RemovedBulb Insulation HoseExpansion V

507. WATER REGULATING VALVE - KM-151BWH ONLYIMPORTANTAlways install a new Drier every time the sealed refrigeration system is opened. Do not replace t

5112) Remove the Drier using brazing equipment.13) Install the new Drier (see “4. DRIER”).14) Braze all fi ttings with nitrogen gas fl owing at a pressu

529. WATER-COOLED CONDENSER - KM-151BWH ONLYIMPORTANTAlways install a new Drier every time the sealed refrigeration system is opened. Do not replace t

537) Lift up the front of the body, and place a block between the body and base to allow space for servicing.8) Disconnect the copper tubes at the inl

5410. FAN MOTOR1) Unplug the icemaker or disconnect the power source.2) Remove the Louver.3) Disconnect the Connector of the Fan Motor lead.4) Remove

1I. SPECIFICATIONS1. SPECIFICATIONS[a] KM-61BAHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 3.4A ( 5 Min. Freeze AT 104°F / WT 80°F )MINIMUM CIRCUIT AMPASITY 15

5511. PUMP MOTOR1) Unplug the icemaker or disconnect the power source.2) Remove the Top Panel and unscrew the Rear Panel.3) Disconnect the Connector o

5612. WATER VALVE1) Unplug the icemaker or disconnect the power source.2) Close the water supply tap.3) Remove the Top Panel and unscrew the Rear Pane

5713. CLEANING VALVE1) Unplug the icemaker or disconnect the power source.2) Remove the Top Panel and unscrew the Rear Panel.3) Disconnect the Connect

5814. DRAIN VALVE1) Unplug the icemaker or disconnect the power source.2) Close the water supply tap.3) Drain the Water Tank (see “19. WATER TANK”).4)

5915. FLOAT SWITCH[a] KM-61BAH, KM-101BAH1) Unplug the icemaker or disconnect the power source.2) Remove the Top Panel and unscrew the Rear Panel.3) D

60Fig. 16[b] KM-151BAH, KM-151BWH1) Unplug the icemaker or disconnect the power source.2) Remove the Top Panel and unscrew the Rear Panel.3) Disconnec

617) Put the Float Switch down into the mounting hole and hook it in position as shown. To ensure proper operation, be sure to fi t the Hook (A) under

627) The Bin Control Switch (KM-61BAH) pulled out of the Storage Bin has the internal structure as shown below.Fig. 20RetainerEvaporatorPump MotorHold

638) To remove the Bin Switch Plate, slightly fl ex both sides and pull the Shaft toward you.Fig. 22Top ViewSlightly fl exPull toward you9) Refi t the re

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-101BAHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 5.2A ( 5 Min. Freeze AT 104㐈 / WT 80㐈 )MINIMUM CIRCUIT AMPASITY 15AMAXIMUM FUSE SIZE 15AAPPROXIMATE I

6518. CONTROL BOX1) Unplug the icemaker or disconnect the power source.2) Remove the Louver.3) Tilt the Tabs inward at the same time on both sides of

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] COMPRESSOR CAPACITOR - EXCEPT KM-61BAH1) Disconne

683) Pinch and push down the Snaps on both sides of the Bracket to unhook the Water Tank from the square holes, and pull it about 1” toward you.4) Whe

696) Slide the left side of the Water Tank to release it from the Bracket Rail, lift down the entire Water Tank, and pull it toward you out of the Sto

7021. SEPARATOR1) Unplug the icemaker or disconnect the power source. 2) Remove the screws at the rear and take off the Top Panel.3) Hold both sides o

715) The Water Supply Pipe is located right under the Spray Tube. Remove the Water Supply Pipe from the Evaporator, pinch and shift the Hose Clamp, an

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

736) After 30 minutes, move the Control Switch to the “OFF” position.7) Same as step 4.8) Move the Control Switch to the “ICE” position to fi ll the Wa

7415) Same as step 1.16) Wash the Bin Control Switch, Water Tank, Float Switch, Cube Guide, Silicone Hose and Overfl ow Pipe by using a nylon scouring

3[c] KM-151BAHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 7.0A ( 5 Min. Freeze AT 104°F / WT 80°F )MINIMUM CIRCUIT AMPASITY 15AMAXIMUM FUSE SIZE 15AAPPROXIMATE

752. MAINTENANCE[a] EXTERIOR PANELSTo prevent corrosion, wipe the exterior occasionally with a clean and soft cloth. Use a damp cloth containing a neu

763. PREPARING THE ICEMAKER FOR LONG STORAGEIMPORTANTWhen shutting off the icemaker for an extended time, drain out all water from the water lines and

773) Wait 3 minutes.4) Close the potable water supply line Shut-off Valve and open the potable water supply line Drain Valve. See Fig. 34.5) Allow the

78Water Supply Inlet1/2” FPTDrain Outlet3/4” FPTFig. 34KM-61BAH, KM-101BAH, KM-151BAH

79Fig. 35KM-151BWHIcemaking Water Supply Inlet 1/2” FPTBin Drain Outlet3/4” FPTCondenser Water Outlet 1/2” FPTCondenser Water Inlet 1/2” FPTShut-off V

4[d] KM-151BWHAC SUPPLY VOLTAGE 115/60/1AMPERAGE 6.8A ( 5 Min. Freeze AT 104°F / WT 80°F )MINIMUM CIRCUIT AMPASITY 15AMAXIMUM FUSE SIZE 15AAPPROXIMATE