Indoor Fan Motor Operation - Panasonic CS-RZ35WKRW Service Manual

14.2 Indoor Fan Motor Operation

14.2.1 Basic Rotation Speed (rpm)
A. Basic Rotation Speed (rpm)
i. Manual Fan Speed
[Cooling, Dry, Fan]

Fan motor's number of rotation is determined according to remote control setting.
[Heating]

Fan motor's number of rotation is determined according to remote control setting.
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.
Fan
Speed
a b
Higher
Medium
Lower

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.
○
Remote control
Tab Hi
○
Remote control
Tab SHi
c d e
o
39 C
o
19 C
Indoor Pipe Temp.
○ ○
Me+ Me
○ ○
Me+ Me
[1 pattern : 10 s]
f g h
RPM Increased
RPM Maintain
o
35 C
RPM Reduced
o
16 C
OFF
94
○ ○
Me- Lo
○ ○
Me- Lo
a b