Wiring Diagram – Single Door Freezer
WHITE
A2 RED
TEMPERATURE
CONTROL
BLACK
WHITE
TO
WHITE
EVAP
FAN
NORMAL CLOSED
HOT GAS DEFROST
SOLENOID
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| DEFROST CYCLE: |
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| COND |
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| 1)AFTER 220 MINUTES: | |
| OPEN | FAN |
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| • A2 OPENS. | ||
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| • B1 CLOSES. | ||
| @ 40° | F |
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| • HOT GAS VALVE OPENS. | ||
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| RED |
| • ON DELAY RELAY CONTACT |
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| CLOSES 1 TO 2, IN 3 MINUTES. | |
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| • THERMOSTAT IS BYPASSED. |
| DEFROST | CLOSE |
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| • COMPRESSOR RESTARTS AFTER | |
| TEMP. LIMIT |
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| 3 MINUTES FOR HOT GAS DEFROST. | ||
| @ 25° F |
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| SWITCH |
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| 1 | 2)LIMIT SWITCH OPENS AT 40° F: | |
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| 2 | • COMPRESSOR POWER OFF. |
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| BLACK | ON DELAY | • HOT GAS REMAINS ENERGIZED. |
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| • B1 OPENS. | ||
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| 3 | ||
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| RELAY | 3)AFTER 20 MINUTES: |
| INTERNAL |
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| • HOT GAS VALVE IS | ||
| CONNECTIONS |
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| • A2 CLOSES. | ||||
(POWER) | WHITE |
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| • COMPRESSOR STARTS THROUGH | ||
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| TEMPERATURE CONTROL. |
B |
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| A1 | A2 | A | B2 B1 T11 T12 T13 |
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| RELAY | RELAY | T14 |
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| W |
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| 4 |
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| B |
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| T15 |
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| S.S. TIMER |
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| 1 | 4 |
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CONDENSING |
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| 2 | 5 |
| S.P.S.T. MOMENTARY | |||||
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| 3 | 6 |
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UNIT |
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| CONTACT DEFROST SWITCH | |||
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| W/ INDICATOR LIGHT |
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8300 West Good Hope Road • Milwaukee, WI 53223 • Phone
Toll Free
Perlick is committed to continuous improvement. Therefore, we reserve the right to change specifications without prior notice. | Form No. Z2255 |
| Rev. 08.22.06 |
