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