Outdoor Fan Motor Operation - Panasonic CS-XZ20XKEW-H Service Manual

ii Auto Fan Speed
[Cooling, Dry]

According to room temperature and setting temperature, indoor fan speed is determined automatically.

When set temperature is not achieved, the indoor fan will operate according to pattern below.

When set temperature achieved, the indoor fan speed will be fixed. When thermostat off, the fan stop periodically.
[Heating]

According to indoor pipe temperature, automatic heating fan speed is determined as follows.
B. Feedback control

Immediately after the fan motor started, feedback control is performed once every second.

During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error
counter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then H19 - fan
motor error is detected. Operation stops and cannot on back.

14.3 Outdoor Fan Motor Operation


It starts when compressor starts operation and it stops 30 seconds after compressor stops operation.
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