Panasonic CS-PE9CKE / CU-PE9CKE / CS-PE12CKE / CU-PE12CKE Service Manual ▷ View online
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CS-PE9CKE / CU-PE9CKE / CS-PE12CKE / CU-PE12CKE
4.Protection Control
B. Starting Control
Within 300 seconds after the start-up of the compressor, the frequency for the compressor will change as below.
A. Time Delay Safety Control
1. The compressor will not start for 3 minutes after the stop of the operation.
2. This control is not applicable if the power supply is turned off and turned on again.
B. 30 Seconds Forced Operation
1. Once the compressor starts operation, it will not stop for 30 seconds.
2. However, it can be stopped using remote controller or Auto Switch on indoor unit.
C. Total Running Current Control
1. When the total outdoor unit running current(AC) exceeds I1 value, the frequency for compressor will decline.
2. If the running current is less than I1 value for 10 seconds, the frequency for compressor will increase.
3. However, if the total outdoor running current exceeds 17.0A, compressor will be stopped immediately for 3 minutes.
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D. IPM Protection Control
1. DC Peak Current Control
When electric current to IPM exceeds set value of DC17.3 ± 1A, the compressor will stop. It will restart after three
minutes.
minutes.
If the set value is exceeded again within 30 seconds, the operation will restart after one minute.
Error code [F99] will be displayed.
2. Overheating Protection Control
When the IPM temperature rises to 90°C, compressor will stop immediately.
Compressor restarts after three minutes if the temperature decreases to 85°C.
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E. Compressor Overheating Prevention Control
The frequency is also controlled by the temperature of the compressor.
F. Compressor Protection Control (Gas Leakage)
1. When the conditions listed in the table occur, the compressor stops and restarts after three minutes.
2. If this continuously occur for twice within 20 minutes, all indoor and outdoor relays will be cut off.
3. This control is not applicable for deice operation.
G. Low Operation Frequency Protection Control
If one of the following conditions exists, the compressor will run with the frequency of 45 Hz.
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