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CONTENTS
Important Safety Information ................................................................................................. 5
I. Specications ...................................................................................................................... 7
A. Nameplate Ratings ........................................................................................................ 7
B. Dimensions ................................................................................................................... 7
1. Refrigerated Volume and Shelf Space ..................................................................... 7
2. One Section/Two Section/Three Section ................................................................. 8
II. General Information ........................................................................................................... 9
A. Construction .................................................................................................................. 9
1. One Section ............................................................................................................. 9
2. Two Section ........................................................................................................... 10
3. Three Section .........................................................................................................11
B. Sequence of Operation ............................................................................................... 12
1. Sequence Cycles and Shutdown ........................................................................... 12
a) Refrigerator ...................................................................................................... 12
b) Freezer ............................................................................................................. 13
2. Sequence Flow Charts .......................................................................................... 14
a) Refrigerator ...................................................................................................... 14
b) Freezer ............................................................................................................. 15
C. Display Module............................................................................................................ 16
1. Display Module Layout ........................................................................................... 16
2. Controls and Adjustments ...................................................................................... 17
D. Control Module ............................................................................................................ 18
1. Control Module Layout ........................................................................................... 18
2. Alarm Safeties ....................................................................................................... 19
E. Compressor Overload, Short Cycle Protection, and High-Pressure Switch................. 20
1. Compressor External or Internal Overload ............................................................. 20
2. Short-Cycle Protection .......................................................................................... 20
3. High-Pressure Switch ............................................................................................ 20
F. Mullion/Perimeter Heater ............................................................................................. 20
G. Thermistors ................................................................................................................. 20
III. Technical Data ................................................................................................................ 21
A. Refrigeration Circuit .................................................................................................... 21
B. Wiring Diagrams .......................................................................................................... 22
IV. Service Diagnosis ........................................................................................................... 27
A. Diagnostic Procedure .................................................................................................. 27
1. Refrigerator ............................................................................................................ 28
2. Freezer .................................................................................................................. 30
B. Control Module Check ................................................................................................. 33
C. Thermistor Check ........................................................................................................ 34
IMPORTANT
This manual should be read carefully before the unit is serviced or maintenance
operations are performed. Only qualied service technicians should install,
service, and maintain the unit. Read the warnings contained in this booklet
carefully as they give important information regarding safety. Please retain this
booklet for any further reference that may be necessary.