Panasonic CS-SA9CKP / CUSA9CKP5 / CS-SA12CKP / CUSA12CKP5 Service Manual ▷ View online
Time Graph for soft dry operation
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CS-SA9CKP CU-SA9CKP5 / CS-SA12CKP CU-SA12CKP5
Time Delay Safety Protection Control
Overload Protection Control
Compressor Protection Control
Anti-Reversing Protection
4-way Valve Control
Warm booting control
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• When turning on the unit by heating mode operation, indoor
fan will be activated when temperature of indoor heat
exchanger reaches 30°C.
exchanger reaches 30°C.
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• Warm boot operation ends when temperature of indoor
heat exchanger reaches 34 °C.
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• During warm booting or within 3 minutes after the ending
the Ry-C will not turn off.
7.3. Heating Mode Operation
When selecting heating mode operation, the unit will operate according to the setting by the remote controller.
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• If the compressor stopped by switching off,turning off by remote controller, or power off, it will not restart within 3 minutes.
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• When room temperature reaches the set temperature on the remote controller, compressor stops and will not restart within 4
minutes.
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• 3 minutes after the compressor stopped, indoor fan will stop for 1 minute. Then indoor fan will resume operation with the speed
at "super low".
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• When temperature of indoor heat exchanger rises to 51°C, outdoor fan will stop when temperature of indoor heat exchanger
falls to 49°C, outdoor fan will restart.
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• When temperature of indoor heat exchanger rises to 65°C or above, compressor stops, and will restart 4 minutes later.
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• Same as the denotation in Cooling Operation.(P.14)
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• If the compressor has been running for 5 minutes, but the difference of temperature between intake air and indoor heat
exchanger is continuously lower than 5°C or below for 2 minutes, compressor will stop and resume operation in 4 minutes.
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• During heating mode operation, 4-way valve is at "open" mode.
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• During heating mode operation, if the unit turned off , the 4-way valve will remain at "open" mode for 5 minutes.
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CS-SA9CKP CU-SA9CKP5 / CS-SA12CKP CU-SA12CKP5
Automatic Fan mode operation
Time graph for heating mode operation
When selecting automatic fan mode by remote controller during heating mode operation, the fan will operate at different speed
under different conditiors according to the temperature of indoor heat exchanger.
under different conditiors according to the temperature of indoor heat exchanger.
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CS-SA9CKP CU-SA9CKP5 / CS-SA12CKP CU-SA12CKP5
Deice Control
Deice operation is to protect the outdoor unit from freezing.
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• Normal Deice Operation
Decing starts 30 minutes after heating mode operation or 60 minutes after the latest decing operation. If temperature of
outdoor piping, tested by TRS, falls to 3°C (TRS OFF)or below for continuously 50 seconds, deicing operation starts.
outdoor piping, tested by TRS, falls to 3°C (TRS OFF)or below for continuously 50 seconds, deicing operation starts.
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• Overload Deicing Operation
During heating operation, if the accumulative stopping time of outdoor fan reaches 60 minutes, deicing operation will start
1 minute after compressor starts.
1 minute after compressor starts.
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• Deicing operation ends under conditions below
1. After 12 minutes.
2. Temperature of outdoor unit rises to 4°C.
3. Because of time delay (Td), deicing operation will not end immediately.
2. Temperature of outdoor unit rises to 4°C.
3. Because of time delay (Td), deicing operation will not end immediately.
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• Once deicing starts, it will not end within 60 seconds.
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• When deicing operation ends, compressor will stop for 30 seconds, and 4-way valve remains at cooling mode operation for
10 seconds.
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CS-SA9CKP CU-SA9CKP5 / CS-SA12CKP CU-SA12CKP5
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