Hoshizaki
F-80 I MAH (-c), F-80 I MWH (-c)
service manual
Wiring Diagrams, F-801MAH/-C, F-801MWH/-C
Specification
Wiring Diagrams
Control Timer
Proper wiring. The unit starts
Maintenance
Number Issued Revised
e Sanitizing Procedure - Final
IV. Adjustment of Components
VII. Cleaning and Maintenance
a Refrigerant Recovery
Page 15
2. Wiring Diagrams
F-801MAH/-C,
F-801MWH/-C
15
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Contents
HoshizakiHoshizaki America, Inc
Number Issued Revised
“A Superior Degree of Reliability”
Modular Flaker Models F-801MAH-C F-801MWH-C
Attn HOSHIZAKI Technical Support Department
Phone 1-800-233-1940 Technical Service 770 487-2331 Fax
Complete and detailed explanation of the problem
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
CONTENTS
9. Removal and Replacement of Control Water Valve
5. Removal and Replacement of Expansion Valve
7. Removal and Replacement of Evaporator Assembly
8. Removal and Replacement of Fan Motor
F-801MAH
I. Specification 1. Icemaker
F-801MWH
F-801MAH-C
F-801MWH-C
F-801MAH/-C
II. General Information 1. Construction
Water Supply Inlet Junction Box Water Regulator Compressor Drier
F-801MWH/-C
GEAR MOTOR
2. Control Box Layout
CONTROL TIMER
FLUSH
RUN CAPACITOR
III. Technical Information 1. Water Circuit and Refrigeration Circuit
F-801MWH/-C
F-801MAH/-C, F-801MWH/-C
2. Wiring Diagrams
3. Sequence of Electrical Circuit
b When reservoir has been filled, gear motor starts immediately
c Compressor starts about 60 sec. after gear motor starts
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e Low water except water-cooled model
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h When flush timer operates for 15 min. every 12 hours
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4. Timing Chart
Miswiring. Circuit Protect Relay operates
Proper wiring. The unit starts
150 sec
1 sec
60 sec
1. CIRCUIT PROTECT RELAY 2. WATER LEVEL UPPER 3. FLOAT SWITCH LOWER
5. Performance Data
WATER FLOW FOR CONDENSER
F-801MAH-C
F-801MWH-C
1. Adjustment of Water Regulating Valve water-cooled model only
IV. Adjustment of Components
2. Adjustment of Flake Size
REMEDY
V. Service Diagnosis 1. No Ice Production
PROBLEM
POSSIBLE CAUSE
PROBLEM
REMEDY
PROBLEM
2. Low Ice Production
POSSIBLE CAUSE
3. Other
b Evacuation and Recharge R-404A
VI. Removal and Replacement of Components
1. Service for Refrigerant Lines
a Refrigerant Recovery
2. Brazing DANGER
3. Removal and Replacement of Compressor
4. Removal and Replacement of Drier
5. Removal and Replacement of Expansion Valve
Page
Auger
7. Removal and Replacement of Evaporator Assembly
Cutter
Extruding Head
Gear Motor
Bearing-Lower and Mechanical Seal
30 Turn on the power supply
27 When replacing the evaporator
c Check for leaks using nitrogen gas 140 PSIG and soap bubbles
28 Move the flush switch to the ICE position
Socket Head Cap Screw Evaporator Washer Socket Head Cap Screw Barrier
Auger Mechanical Seal O-ring Bearing Lower Bolt Washer
Coupling - Spline
Rubber O-ring Nylon Ring Bolt Washer Cutter Extruding Head Washer
9. Removal and Replacement of Control Water Valve
8. Removal and Replacement of Fan Motor
10. Removal and Replacement of Flush Water Valve
1. Preparing the Icemaker for Long Storage
VII. Cleaning and Maintenance
a Cleaning Solution
2. Cleaning and Sanitizing Instructions
b Cleaning Procedure
d Sanitizing Procedure - Initial
c Sanitizing Solution
e Sanitizing Procedure - Final
22 Turn on the power supply and start the automatic icemaking process
18 Move the flush switch to the “ICE” position and run the icemaker
19 Turn off the power supply after 30 minutes
21 Flush out any solution from the storage bin
3. Maintenance
4 Condenser except water-cooled model
3 Air Filter air-cooled model only
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