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Hoshizaki
73183 service manual 2. CR2B-FS/HS, CR3B-FS/HS, High-Pressure Switch
Models:
73183
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23
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D. Diagnostic Chart
V. Replacement of Components
Dimension
Maintenance
components ground wire
Problem
A. Diagnostic Procedure
Controls and Adjustments
Safety
High-Pressure Switch
Page 23
Image 23
2.
CR2B-FS/HS,
CR3B-FS/HS
*
*
High-Pressure
Switch
Cut-out
270±10 PSIG
Cut-in
190±20 PSIG
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Image 23
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Contents
HoshizakiHoshizaki America, Inc
Commercial Series Refrigerated Kitchen Equipment Models
Reach-In B-Series
Phone 1-800-233-1940 Technical Support 770 487-2331 Fax
Complete and detailed explanation of the problem
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
Attn Hoshizaki Technical Support Department
CONTENTS
1. Refrigerant Recovery
D. Diagnostic Chart
V. Replacement of Components
A. Service for Refrigerant Lines
Indicates a situation which could result in damage to the unit
Important Safety Information
Indicates a hazardous situation which could result in death or
serious injury
Page
1. Refrigerated Volume and Shelf Space
I. Specifications A. Nameplate Ratings
B. Dimensions
Unit mm in
2. One Section/Two Section/Three Section
1. One Section
II. General Information A. Construction
2. Two Section
Model Shown CR3B-FS Models
3. Three Section
1. Startup/Cool Down
B. Sequence of Operation
1. Sequence Cycles and Shutdown
a Refrigerator
3. Cool Down Restart
b Freezer
1. Startup/Cool Down
2. Cool Down Achieved
2. Sequence Flow
Refrigerator Sequence Flow Chart
Charts
a Refrigerator
2. Cool Down Achieved
Freezer Sequence Flow Chart
b Freezer
1. Startup/Cool Down
1. Display Module Layout Display Module
C. Display Module
c Changing the Temperature Display Scale F or C
2. Controls and Adjustments
a Default Settings
b Temperature Setpoint
1. Control Module Layout
D. Control Module
Refrigerator Control Module
Freezer Control Module
Problem
2. Alarm Safeties
Alarm Signals
Alarm Code
1. Compressor External or Internal Overload
3. High-Pressure Switch
F. Mullion/Perimeter Heater
G. Thermistors
III. Technical Data A. Refrigeration Circuit
1. CR1B-FS/HS, CR3B-FS/HS
B. Wiring Diagrams
High-Pressure Switch
2. CR2B-FS/HS, CR3B-FS/HS
High-Pressure Switch
Defrost Thermostat
High-Pressure Switch
3. CF1B-FS/HS, CF3B-FS/HS
Defrost Thermostat
High-Pressure Switch
4. CF2B-FS/HS, CF3B-FS/HS
Note Only the top receptacles have power
5. CR3B-FS/HS Receptacle Box Connection
6. CF3B-FS/HS Receptacle Box Connection
Note Only the top receptacles have power
A. Diagnostic Procedure
IV. Service Diagnosis
1. Refrigerator
Defrost Diagnosis
9 Defrost
2. Freezer
Defrost Diagnosis
9 Defrost
Page
Defrost
B. Control Module Check
Startup/Cool Down
C. Thermistor Check
1. Unit Not Cooling
D. Diagnostic Chart
Evaporator is Frozen Up - Possible Cause
2. Evaporator is Frozen Up
3. Defrost Fails to Terminate
Unit Not Cooling - Possible Cause
1. Refrigerant Recovery
V. Replacement of Components
A. Service for Refrigerant Lines
3. Evacuation and Recharge
2. Brazing
4 Close the low-side valve and high-side valve on the gauge manifold
Component
B. Important Notes for Component Replacement
C. Door Re-Hinging
components ground wire
1. Exterior
A. Cleaning
B. Maintenance
2. Power Supply Connection
C. Shutdown and Long Storage
