85
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.
Remote control ○ ○ ○ ○ ○
Tab Hi Me+ Me Me- Lo
[Heating]
Fan motor’s number of rotation is determined according to remote control setting.
Remote control ○ ○ ○ ○ ○
Tab SHi Me+ Me Me- Lo
ii Auto Fan Speed
[Cooling, Dry, Fan]
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.
a b cdefgh
[1 pattern : 10 s]
a b
Higher
Fan
Speed
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.
RPM Increased
RPM Maintain
RPM Reduced
OFF
Indoor Pipe Temp.
35
o
C
39
o
C
16
o
C
19
o
C
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
Outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops
30 seconds after compressor stops operation.
Compressor:
Outdoor Fan:
ON
ON
ON
ON
Fan Speed
OFF
OFF
30 sec