OCT
SERVICE MANUAL
MODEL KM-2000SWF3 KM-2000SRF3 KM-2000SWH3 KM-2000SRH3
HOSHIZAKI STACKABLE CRESCENT CUBER
Attn HOSHIZAKI Technical Support Department
Phone 1-800-233-1940 Technical Service
Complete and detailed explanation of the problem
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
CONTENTS
KM-2000SWF3, KM-2000SWH3 Water-cooled, 3 phase
KM-2000SRF3, KM-2000SRH3 Remote air-cooled, 3 phase
REMOVAL AND REPLACEMENT OF HOT GAS VALVE
REMOVAL AND REPLACEMENT OF COMPRESSOR
REMOVAL AND REPLACEMENT OF DRIER
REMOVAL AND REPLACEMENT OF EXPANSION 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
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
Freeze Cycle
1 beep every 3 sec. = High Evaporator Temperature 127 F
1 Minute Fill Cycle
Harvest Cycle
Control Products HOSHIZAKI001 Board
Control Products HOS-001A Board
1st Cycle KM-2000SWF3, KM-2000SRF3, KM-2000SWH3 and KM-2000SRH3
c SEQUENCE
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
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-2000SWF3, KM-2000SWH3
III. TECHNICAL INFORMATION
b KM-2000SRF3, KM-2000SRH3
KM-2000SRF3, KM-2000SRH3
2. WIRING DIAGRAMS
a KM-2000SWF3 KM-2000SWH3 b KM-2000SRF3 KM-2000SRH3
KM-2000SWF3, KM-2000SWH3
3. TIMING CHART
Page
4. PERFORMANCE DATA a KM-2000SWF3, KM-2000SWH3
b KM-2000SRF3, KM-2000SRH3
REMEDY
IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION
PROBLEM
POSSIBLE CAUSE
PROBLEM
POSSIBLE CAUSE
REMEDY
PROBLEM
POSSIBLE CAUSE
REMEDY
REMEDY
2. EVAPORATOR IS FROZEN UP
PROBLEM
POSSIBLE CAUSE
Solenoid Valve, water system
3. LOW ICE PRODUCTION
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
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
Foam Insulation
11. REMOVAL AND REPLACEMENT OF THERMISTOR CAUTION
Thermistor Lead
Cable Tie
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
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
2. CLEANING PROCEDURE
a CLEANING PROCEDURE
22 Move the Control Switch to the “Wash” position
19 Turn on the power supply to fill the Water Tank with water
20 Turn off the power supply after 3 minutes
21 Remove the Front Panel, and fully open the Cleaning Valve
b SANITIZING PROCEDURE - Following Cleaning Procedure
3. MAINTENANCE
