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1 Function of Refrigeration Unit
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This refrigeration unit has following functions.
(1) Drive switching function
This is the function to switch the drive (motor/sub-engine) manually.
Refer to pages 37 and 38 for how to switch the drive.
Regarding the function to switch from the motor drive operation to the
engine drive after a power failure, contact your nearest dealer.
(2) Operation pattern switching function
This is the function to switch operation pattern (continuous operation/
automatic start/stop operation).
Refer to pages 39 and 40 for how to switch operation pattern.
(3) Defrosting operation function
This is the function to protect evaporator from frosting during cooling
operation and to prevent refrigerating power from decreasing.
There are following 2 methods to start defrosting operation.
1) Automatic defrosting operation
Defrosting starts automatically by the timer setting.
Refer to page 29 for defrosting timer setting.
2) Manual defrosting operation
Defrosting starts forcibly by pressing the switch of controller.
Refer to pages 46 and 47 for how to operate.
After the defrosting operation completes, the refrigeration unit stops once
and restarts automatically to return to cooling operation.
Defrosting operation will not start when the evaporator temperature is high
even during cooling operation.
(4) Whisper operation function
This is the function to lower the operation sound with xing the sub-engine
at slow speed forcibly during sub-engine driving.
Refer to page 45 for how to operate.
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