IMPORTANT |
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This manual should be read carefully before the unit is serviced or |
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maintenance operations are performed. Only qualified service technicians |
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should install, service, and maintain the unit. Read the warnings contained |
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in this booklet carefully as they give important information regarding safety. |
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Please retain this booklet for any further reference that may be necessary. |
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CONTENTS |
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Important Safety Information | 6 |
I. Specifications | 7 |
A. Nameplate Ratings | 7 |
B. Dimensions | 7 |
II. General Information | 8 |
A. Construction | 8 |
B. Sequence of Operation | 9 |
1. Startup | 9 |
2. Cool Down | 9 |
3. Cool Down Achieved | 9 |
4. Cool Down Restart | 10 |
5. Cabinet Defrost | 10 |
6. Rail Defrost | 11 |
C. Sequence of Operation Charts | 12 |
1. Cabinet Cooling | 12 |
2. Cabinet and Rail Cooling | 13 |
D. Control Board | 15 |
1. Control Board Location | 15 |
2. Control Board Layout | 16 |
3. Features | 17 |
4. Controls and Adjustments | 18 |
a) Switch Settings | 18 |
b) Temperature Display | 18 |
c) Temperature Setpoint | 19 |
d) Cabinet Defrost | 19 |
e) Energy Saving Mode | 19 |
f) Temperature Correction Factor | 20 |
5. Service Menu | 21 |
a) Service Menu Access | 21 |
b) Service Menu Chart | 22 |
6. Alarm Signals | 23 |
7. Control Board Check Procedure | 23 |
8. Control Board Replacement | 23 |
E. Thermistor Check | 24 |
F. Perimeter Heater | 24 |
G. Compressor Protector | 24 |
3
