MODEL KM-2000SWF3 KM-2000SRF3 KM-2000SWH3 KM-2000SRH3
SERVICE MANUAL
HOSHIZAKI STACKABLE CRESCENT CUBER
OCT
Complete and detailed explanation of the problem
Phone 1-800-233-1940 Technical Service
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
Attn HOSHIZAKI Technical Support Department
KM-2000SWF3, KM-2000SWH3 Water-cooled, 3 phase
CONTENTS
KM-2000SRF3, KM-2000SRH3 Remote air-cooled, 3 phase
REMOVAL AND REPLACEMENT OF DRIER
REMOVAL AND REPLACEMENT OF COMPRESSOR
REMOVAL AND REPLACEMENT OF EXPANSION VALVE
REMOVAL AND REPLACEMENT OF HOT GAS VALVE
I. SPECIFICATIONS 1. KM-2000SWF3, KM-2000SWH3 Water-cooled
2. KM-2000SRF3, KM-2000SRH3 Remote air-cooled
URC-20F
3. CONDENSING UNIT
SPECIFICATIONS MODEL URC-20F
a KM-2000SWF3, KM-2000SWH3
II. GENERAL INFORMATION 1. CONSTRUCTION
b KM-2000SRF3, KM-2000SRH3
2. CONTROLLER BOARD
Features of Control Products “E” Controller Board
a SOLID-STATE CONTROL
b CONTROLLER BOARD
3 High Temperature Safety - 127 ± 7F
2 Defrost Timer
4 Low Water Safety
6 LED Lights and Audible Alarm Safeties
1 Minute Fill Cycle
1 beep every 3 sec. = High Evaporator Temperature 127 F
Harvest Cycle
Freeze Cycle
Control Products HOSHIZAKI001 Board
Control Products HOS-001A Board
1st Cycle KM-2000SWF3, KM-2000SRF3, KM-2000SWH3 and KM-2000SRH3
c SEQUENCE
KM-2000SWF3, KM-2000SRF3, KM-2000SWH3 and KM-2000SRH3
2nd Cycle and after with pump drain
IMPORTANT Water Valve opening is limited to 6 minutes
KM-2000SWF3, KM-2000SRF3, KM-2000SWH3 and KM-2000SRH3
2nd Cycle and after with no pump drain
IMPORTANT Water Valve opening is limited to 6 minutes
KM-2000SF3
d CONTROLS AND ADJUSTMENTS
KM-2000SH3
Resistance k Ω
The Drain Timer is factory-adjusted, and no adjustment is required
3 Drain Timer
SETTING
Dip Switch
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-2000SWF3, KM-2000SWH3
III. TECHNICAL INFORMATION
b KM-2000SRF3, KM-2000SRH3
a KM-2000SWF3 KM-2000SWH3 b KM-2000SRF3 KM-2000SRH3
2. WIRING DIAGRAMS
KM-2000SWF3, KM-2000SWH3
KM-2000SRF3, KM-2000SRH3
3. TIMING CHART
Page
4. PERFORMANCE DATA a KM-2000SWF3, KM-2000SWH3
b KM-2000SRF3, KM-2000SRH3
PROBLEM
IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION
POSSIBLE CAUSE
REMEDY
POSSIBLE CAUSE
PROBLEM
REMEDY
POSSIBLE CAUSE
PROBLEM
REMEDY
PROBLEM
2. EVAPORATOR IS FROZEN UP
POSSIBLE CAUSE
REMEDY
4. ABNORMAL ICE
3. LOW ICE PRODUCTION
5. OTHERS
Solenoid Valve, water system
1. SERVICE FOR REFRIGERANT LINES
V. REMOVAL AND REPLACEMENT OF COMPONENTS
a REFRIGERANT RECOVERY
b EVACUATION AND RECHARGE R-404A
2. BRAZING DANGER
3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT
4. REMOVAL AND REPLACEMENT OF DRIER
5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE
6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE
7. REMOVAL AND REPLACEMENT OF EVAPORATOR IMPORTANT
Page
9. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY
Page
Thermistor Lead
11. REMOVAL AND REPLACEMENT OF THERMISTOR CAUTION
Cable Tie
Foam Insulation
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
until the proper ambient temperature is resumed
7 Move the Control Switch to the “ICE” position
2 Move the Control Switch, on the Control Box, to the “OFF” position
3 Drain the Potable Water Tank 1 Turn off the power supply
2 Move the Control Switch to the “OFF” position
2. CLEANING PROCEDURE
a CLEANING PROCEDURE
20 Turn off the power supply after 3 minutes
19 Turn on the power supply to fill the Water Tank with water
21 Remove the Front Panel, and fully open the Cleaning Valve
22 Move the Control Switch to the “Wash” position
b SANITIZING PROCEDURE - Following Cleaning Procedure
3. MAINTENANCE
