14
6.2.5.2 Heating mode
Compressor running rules:
T1
≤
TS, compressor on
T1>TS+4
F, compressor off
6.2.5.3 Auto mode
The machine will choose cooling, heating or fan-
only mode according to ΔT (ΔT =T1-Ts).
ΔT=T1-Ts
Running mode
ΔT
＞
2
℃
Cooling
-1
≤ΔT≤2
℃
Fan-only
ΔT<-1
℃
Heating(for cooling only models, they will run at fan-only mode)
The machine will choose actual running mode in auto mode in the below cases:
Power on or change mode to auto mode or adjust temperature in auto mode, the machine will choose
actual running mode again.
A: In auto mode, if the compressor keeps not running for 15 minutes. judge condition B
B: If 1
<ΔT or ΔT <-4
℃
, the machine will choose actual running mode again according to T1-Ts till the
compressor stops..
6.2.5.4 Fan mode
(1) Compressor and 4-valve stop.
(2) Temperature setting function is disabled.
(3) The speed of indoor fan can be optionally chosen as High/ Mid (optional) /Low
6.2.6 Temperature sensor is open circuit or short circuit.
(T1-Ts)
℉
4
0
Operation conditon
compressor off
compressor on
