Outdoor Fan Motor Operation - Panasonic CS-HZ9RKE-1 Service Manual

ii. Auto Fan Speed
[Cooling, Dry]

According to room temperature and setting temperature, indoor fan speed is determined automatically.

The indoor fan will operate according to pattern below.
Fan
Speed
a
Higher
Medium
Lower
[Fan]

Indoor fan speed is fixed at predetermined speed.
[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.
Compressor:
Outdoor Fan:
b c d
RPM Increased
39 o C
RPM Reduced
o
19 C
OFF
Indoor Pipe Temp.
ON
Fan Speed
ON
30 sec
[1 pattern : 10 s]
e f g
RPM Maintain
35 o C
o
16 C
OFF
OFF
63
h a b
ON
ON