Indoor Fan Motor Operation - Panasonic CS-25XKE Service Manual

14.1.5 Automatic Operation

This mode can be set using remote control and the operation is decided by remote control setting temperature,
remote control operation mode and indoor intake air temperature.

During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the
indoor intake air temperature.

Every 10 minutes, the indoor temperature is judged.

For the 1st judgment
If indoor intake temperature - remote control setting temperature ≥ 2.0°C, COOL mode is decided.
o
If -2.0°C ≤ indoor intake temperature - remote control setting temperature < 2.0°C, DRY mode is decided.
o
If indoor intake temperature - remote control setting temperature < -2.0°C, HEAT mode is decided.
o
-6.0 -5.0 -4.0 -3.0

For the 2nd judgment onwards
If indoor intake temperature - remote control setting temperature ≥ 3.0°C, if previous operate in DRY mode,
o
then continue in DRY mode. otherwise COOL mode is decided.
If -2.0°C ≤ indoor intake temperature - remote control setting temperature < 3.0°C, maintain with previous
o
mode.
If indoor intake temperature - remote control setting temperature < -2.0°C, HEAT mode is decided.
o
-6.0 -5.0 -4.0 -3.0 -2.0 -1.0
14.1.6 Fan Operation

Fan Operation is used to circulate air in a room.

During operation, indoor fan run continuously but outdoor fan and compressor stop.

Temperature setting is not applicable.

14.2 Indoor Fan Motor Operation

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.
Remote control

When thermostat off, the fan speed will be limited to max Me fan.

In COOL mode, when the room temperature reaches near the set temperature, the compressor stops, then the indoor unit fan
speed reduced.

To prevent the room humidity rising, the indoor fan will resume running according to the set fan speed when room
temperature increase.
[Heating]

Fan motor's number of rotation is determined according to remote control setting.
Remote control
Heat
-2.0 -1.0
Heat
○
Tab Hi
○
Tab SHi
Dry
0.0 1.0 2.0 3.0 4.0
Maintain
current mode
0.0 1.0 2.0 3.0 4.0
○ ○
Me+ Me
○ ○
Me+ Me
64
Cool
5.0 6.0
Cool
/Dry
5.0 6.0
○ ○
Me- Lo
○ ○
Me- Lo