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Ice Maker
Hoshizaki
KM-630MWH, KM-630MAH service manual b2 KM-630MRHwith auxiliary codes M-2and after
Models:
KM-630MAH
KM-630MRH
KM-630MWH
1
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Troubleshooting
Specs
Install
Wiring Diagrams
V. Removal And Replacement Of Components
Maintenance
Problem
Cleaning And Sanitizing Procedures
2Defrost Timer
d CONTROLS AND ADJUSTMENTS
Page 34
Image 34
[b2]
KM-630MRH
(with auxiliary codes
M-2
and after)
34
Page 33
Page 35
Page 34
Image 34
Page 33
Page 35
Contents
HOSHIZAKI MODULAR CRESCENT CUBER
KM-630MAH KM-630MWH KM-630MRH
MODEL
Page
CONTENTS
1. SERVICE FOR REFRIGERANT LINES
IV. SERVICE DIAGNOSIS
V. REMOVAL AND REPLACEMENT OF COMPONENTS
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
aKM-630MAH
II.GENERAL INFORMATION 1. CONSTRUCTION
Mechanical Bin Control
b KM-630MWH
Expansion Valve Compressor Float Switch
c KM-630MRH
Spray Tubes Control Switch
Water Pump Mechanical
a SOLID-STATECONTROL
Features of Control Products “E” Controller Board
2. CONTROLLER BOARD
b CONTROLLER BOARD
4Low Water Safety
2Defrost Timer
3High Temperature Safety - 127 ± 7F
6LED Lights and Audible Alarm Safeties
Freeze Cycle
1 Minute Fill Cycle
Harvest 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
FOR MODELS WITH MECHANICAL BIN CONTROL
d CONTROLS AND ADJUSTMENTS
FOR MODELS WITH THERMOSTAT
iDisconnect the connector K3 on the board
Switch Nos. 9 and
Temperature F
1 Defrost Control
Dip Switch
2 Defrost Timer
SETTING
Dip Switch
MODELS WITH THERMOSTAT
MODELS WITH MECHANICAL BIN CONTROL
e CHECKING THE CONTROLLER BOARD
3. MECHANICAL BIN CONTROL
aPROXIMITY SWITCH
bEXPLANATION OF OPERATION
cTROUBLESHOOTING MECHANICAL BIN CONTROL ONLY
1.WATER CIRCUIT AND REFRIGERANT CIRCUIT
III. TECHNICAL INFORMATION
aKM-630MAH
b KM-630MWH
c KM-630MRH
2. WIRING DIAGRAMS
Page
Cut-out
b1 KM-630MRHwith auxiliary codes L-0, M-0, M-1
Note Pressure Switch
PSIG
b2 KM-630MRHwith auxiliary codes M-2and after
3. TIMING CHART
Page
1250
4.PERFORMANCE DATA
a KM-630MAH
1332
b1 KM-630MWHSerial #L00001D - M20270B
b2 KM-630MWHSerial #M20301E
1332
c KM-630MRH
APPROXIMATE ICE
1414
POSSIBLE CAUSE
IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION
PROBLEM
REMEDY
POSSIBLE CAUSE
PROBLEM
REMEDY
POSSIBLE CAUSE
PROBLEM
REMEDY
2. EVAPORATOR IS FROZEN UP
4. ABNORMAL ICE
3. LOW ICE PRODUCTION
5. OTHERS
a REFRIGERANT RECOVERY
V. REMOVAL AND REPLACEMENT OF COMPONENTS
1.SERVICE FOR REFRIGERANT LINES
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
7Install the new Drier
1Turn off the power supply 2Remove the panels
6Install the new valve
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
26Turn off the power supply after 5 minutes
21Turn off the power supply after 3 minutes
23Move the Control Switch to the “Wash” position
19Replace the Front Panel in its correct position
b SANITIZING PROCEDURE
3. MAINTENANCE