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Ice Maker
Hoshizaki
KM-630MWH, KM-630MRH, KM-630MAH service manual
Models:
KM-630MAH
KM-630MRH
KM-630MWH
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Troubleshooting
Specification
Install
Wiring Diagrams
V. Removal And Replacement Of Components
Maintenance
Problem
Cleaning And Sanitizing Procedures
2Defrost Timer
d CONTROLS AND ADJUSTMENTS
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Contents
KM-630MAH KM-630MWH KM-630MRH
HOSHIZAKI MODULAR CRESCENT CUBER
MODEL
Page
CONTENTS
IV. SERVICE DIAGNOSIS
V. REMOVAL AND REPLACEMENT OF COMPONENTS
1. SERVICE FOR REFRIGERANT LINES
a REFRIGERANT RECOVERY
SPECIFICATIONS
KM-630MAH
2a. KM-630MWHSerial #L00001D - M20270B
2b. KM-630MWHSerial #M20301E
3. KM-630MRH
4. CONDENSER UNIT
URC-6F
SPECIFICATIONS
MODEL URC-6F
II.GENERAL INFORMATION 1. CONSTRUCTION
aKM-630MAH
Mechanical Bin Control
b KM-630MWH
c KM-630MRH
Spray Tubes Control Switch
Expansion Valve Compressor Float Switch
Water Pump Mechanical
Features of Control Products “E” Controller Board
2. CONTROLLER BOARD
a SOLID-STATECONTROL
b CONTROLLER BOARD
2Defrost Timer
3High Temperature Safety - 127 ± 7F
4Low Water Safety
6LED Lights and Audible Alarm Safeties
1 Minute Fill Cycle
Harvest Cycle
Freeze Cycle
Reverse Pump Out
Control Products HOS-001ABoard
cSEQUENCE 1st Cycle
2nd Cycle and after with pump drain
2nd Cycle and after with no pump drain
d CONTROLS AND ADJUSTMENTS
FOR MODELS WITH MECHANICAL BIN CONTROL
FOR MODELS WITH THERMOSTAT
Switch Nos. 9 and
Temperature F
iDisconnect the connector K3 on the board
1 Defrost Control
2 Defrost Timer
SETTING
Dip Switch
Dip Switch
MODELS WITH THERMOSTAT
MODELS WITH MECHANICAL BIN CONTROL
e CHECKING THE CONTROLLER BOARD
aPROXIMITY SWITCH
3. MECHANICAL BIN CONTROL
bEXPLANATION OF OPERATION
cTROUBLESHOOTING MECHANICAL BIN CONTROL ONLY
III. TECHNICAL INFORMATION
1.WATER CIRCUIT AND REFRIGERANT CIRCUIT
aKM-630MAH
b KM-630MWH
c KM-630MRH
2. WIRING DIAGRAMS
Page
b1 KM-630MRHwith auxiliary codes L-0, M-0, M-1
Note Pressure Switch
Cut-out
PSIG
b2 KM-630MRHwith auxiliary codes M-2and after
3. TIMING CHART
Page
4.PERFORMANCE DATA
a KM-630MAH
1250
1332
b1 KM-630MWHSerial #L00001D - M20270B
b2 KM-630MWHSerial #M20301E
c KM-630MRH
APPROXIMATE ICE
1332
1414
IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION
PROBLEM
POSSIBLE CAUSE
REMEDY
PROBLEM
POSSIBLE CAUSE
REMEDY
PROBLEM
POSSIBLE CAUSE
REMEDY
2. EVAPORATOR IS FROZEN UP
3. LOW ICE PRODUCTION
4. ABNORMAL ICE
5. OTHERS
V. REMOVAL AND REPLACEMENT OF COMPONENTS
1.SERVICE FOR REFRIGERANT LINES
a REFRIGERANT RECOVERY
bEVACUATION AND RECHARGE R-404A
2. BRAZING DANGER
3.REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT
18Turn on the power supply
17Replace the panels in their correct positions
4. REMOVAL AND REPLACEMENT OF DRIER
5.REMOVAL AND REPLACEMENT OF EXPANSION VALVE
7Install the new Drier
1Turn off the power supply 2Remove the panels
6Install the new valve
7Install the new Drier
14Turn on the power supply
7.REMOVAL AND REPLACEMENT OF EVAPORATOR IMPORTANT
1Turn off the power supply
Page
1Turn off the power supply
11.REMOVAL AND REPLACEMENT OF THERMISTOR CAUTION
12. REMOVAL AND REPLACEMENT OF FAN MOTOR
13. REMOVAL AND REPLACEMENT OF WATER VALVE
14. REMOVAL AND REPLACEMENT OF PUMP MOTOR
15. REMOVAL AND REPLACEMENT OF SPRAY TUBES
VI. CLEANING AND MAINTENANCE INSTRUCTIONS
1. PREPARING THE ICEMAKER FOR LONG STORAGE
Page
2. CLEANING AND SANITIZING PROCEDURES
aCLEANING PROCEDURE
21Turn off the power supply after 3 minutes
23Move the Control Switch to the “Wash” position
26Turn off the power supply after 5 minutes
19Replace the Front Panel in its correct position
b SANITIZING PROCEDURE
3. MAINTENANCE