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Ice Maker
Hoshizaki
KM-630MRF, KM-630MAF service manual b KM-630MWF
Models:
KM-630MRF
KM-630MWF
KM-630MAF
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Specifications
Install
Wiring Diagrams
Maintenance
Problem
Defrost Timer
d CONTROLS AND ADJUSTMENTS
Setting
Cleaning
a REFRIGERANT RECOVERY
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Image 11
[b]
KM-630MWF
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Page 12
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Image 11
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Contents
MODEL
SERVICE MANUAL
KM-630MAF KM-630MWF KM-630MRF
HOSHIZAKI MODULAR CRESCENT CUBER
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
PAGE
CONTENTS
REMOVAL AND REPLACEMENT OF COMPRESSOR
V. REMOVAL AND REPLACEMENT OF COMPONENTS
SERVICE FOR REFRIGERANT LINES
a REFRIGERANT RECOVERY
I. SPECIFICATIONS 1. KM-630MAF
2. KM-630MWF
3. KM-630MRF
4. CONDENSER UNIT URC-6F
MODEL URC-6F
SPECIFICATIONS
a KM-630MAF
II. GENERAL INFORMATION 1. CONSTRUCTION
b KM-630MWF
c KM-630MRF
b CONTROLLER BOARD
Features of Control Products “E” Controller Board
2. CONTROLLER BOARD
a SOLID-STATE CONTROL
6 LED Lights and Audible Alarm Safeties
2 Defrost Timer
3 High Temperature Safety - 127 ± 7F
4 Low Water Safety
Reverse Pump Out
1 Minute Fill Cycle
Harvest Cycle
Freeze Cycle
Control Products HOS-001A Board
IMPORTANT Water Valve opening is limited to 6 minutes
c SEQUENCE 1st Cycle
IMPORTANT Water Valve opening is limited to 6 minutes
2nd Cycle and after with pump drain
IMPORTANT Water Valve opening is limited to 6 minutes
2nd Cycle and after with no pump drain
d CONTROLS AND ADJUSTMENTS
SETTING
Check a thermistor for resistance by using the following procedures
i Disconnect the connector K3 on the board
2 Defrost Timer
Dip Switch
3 Drain Timer
The Drain Timer is factory-adjusted, and no adjustment is required
SETTING
e CHECKING THE CONTROLLER BOARD
After the 1 minute water supply cycle, the defrost cycle starts
At this point, the unit should start the defrost cycle
1. WATER CIRCUIT AND REFRIGERANT CIRCUIT a KM-630MAF
III. TECHNICAL INFORMATION
b KM-630MWF
c KM-630MRF
a KM-630MAF and KM-630MWF
2. WIRING DIAGRAMS
U1GMA0179608
b KM-630MRF
From Defrost Cycle To Defrost Cycle
3. TIMING CHART
If Float Sw. is OFF
To Freeze Cycle From Freeze Cycle
4. PERFORMANCE DATA a KM-630MAF
b KM-630MWF
c KM-630MRF
REMEDY
IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION
PROBLEM
POSSIBLE CAUSE
REMEDY
PROBLEM
POSSIBLE CAUSE
REMEDY
PROBLEM
POSSIBLE CAUSE
PROBLEM
2. EVAPORATOR IS FROZEN UP
3. LOW ICE PRODUCTION
PROBLEM
Solenoid Valve, water system
4. ABNORMAL ICE
5. OTHERS
b EVACUATION AND RECHARGE R-404A
V. REMOVAL AND REPLACEMENT OF COMPONENTS
1. SERVICE FOR REFRIGERANT LINES
a REFRIGERANT RECOVERY
2. BRAZING DANGER
3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT
17 Replace the panels in their correct positions
18 Turn on the power supply
KM9311
4. REMOVAL AND REPLACEMENT OF DRIER
5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE
6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE
6 Install the new valve
1 Turn off the power supply 2 Remove the panels
3 Recover the refrigerant and store it in an approved container
5 Disconnect the Hot Gas Valve or Line Valve using brazing equipment
7. REMOVAL AND REPLACEMENT OF EVAPORATOR IMPORTANT
Page
9. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY
Page
Foam Insulation
11. REMOVAL AND REPLACEMENT OF THERMISTOR CAUTION
Thermistor Lead
Cable Tie
Min. 4-3/4 Liquid Bypass Flow
12. REMOVAL AND REPLACEMENT OF FAN MOTOR
14. REMOVAL AND REPLACEMENT OF PUMP MOTOR
13. REMOVAL AND REPLACEMENT OF WATER VALVE
15. REMOVAL AND REPLACEMENT OF SPRAY TUBES
1. PREPARING THE ICEMAKER FOR LONG STORAGE
VI. MAINTENANCE AND CLEANING INSTRUCTIONS
2 Move the Control Switch to the “OFF” position
2 Move the Control Switch, on the Control Box, to the “OFF” position
7 Move the Control Switch to the “ICE” position
3 Drain the Potable Water Tank 1 Turn off the power supply
CLOSED POSITION OPEN POSITION
2. CLEANING
a CLEANING PROCEDURE
23 Move the Control Switch to the “Wash” position
20 Turn on the power supply to fill the Water Tank with water
21 Turn off the power supply after 3 minutes
22 Remove the Front Panel, and fully open the Cleaning Valve
b SANITIZING PROCEDURE - Following Cleaning Procedure
3. MAINTENANCE