Panasonic CS-W12CTP Service Manual page 26

CS-W12CTP CU-W12CTP5 / CS-W18CTP CU-W18CTP5 / CS-W24CTP CU-W24CTP5
4-way Valve Control
• • • • 4-way valve always ON during Heating operation. (Except Deicing operation)
• • • • When the unit is switched to "OFF" during Heating operation, 4-way valve stay at Heating position for 5 minutes.
Outdoor Fan Motor Control
• • • • When compressor stops (reaches room temperature), outdoor fan will operate for 30 seconds.
(30 seconds Forced Operation).
Indoor Fan Motor Control
• • • • When compressor stops (reaches room temperature), indoor fan will stop for 1 minutes, operate for 3 minutes, if still not yet
reaches the room temperature, indoor fan Lo- for 40 sec. after that operate at SLo speed.
Hot Start Control
When Heating operation starts, Indoor Fan will not start until the indoor heat exchanger reaches 30°C as diagram shown.
Hot Start is completed when indoor heat exchanger rises to 42°C or over 4 minutes.
Anti Cold Draft Control
• • • • This operation is to prevent the Cold Draft during Heating mode operation.
• • • • The operation will start when compressor OFF (Thermo OFF) during Heating operation.
• • • • For the first 30 sec. from compressor OFF (Thermo OFF), Indoor fan speed will operate accordingly to the Indoor heat
exchanger temperature as shown below:
• • • • After 30 sec. from compressor OFF (thermo OFF), Indoor fan will run at SSLo speed only.
• • • • Anti Cold Draft Control will stop when:
− − − − Intake temperature < set temperature. (Time Delay Safety Control 4 minutes waiting is valid)
− − − − After 30 minutes time saved control.
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