2
Output will be in high level. 4 seconds after start-up circuit is engaged, the main chip output
Will be in low level and the start-up circuit will shut down.
③
The compressor will remain operation when defrosting ends.
1.2 Indoor Fan
The motor is a tapping motor with iron-made outer cover and high, low and fine tuning speed selectioins
Driven by three relays separately. The main chip will act when its output is high level. Under any
circumstances, only one fan speed is allowed.
1.3 Outdoor Fan
The motor is a tapping motor with iron-made outer cover and high, low speed options controlled by relays
Separately. The main chip acts when its output is high level.
1.4 Buzzer
①
It will buzz when its driving port in the main chip outputs high level.
②
It will buzz twice with each lasting 0.5 second at 0.5 intervals when the main frame receives remote
Start-up signal.
③
It will buzz once for 1 second when receiving turn-off signal.
④
It will buzz for 0.5 second once receiving other signal.
⑤
It will not buzz when receiving abnormal signal.
1.5 Indicator
①
There are 4 indicators: operating indicator, water level warning indicator, defrosting indicator and
pre-heating indicator(wind-delivery indicator for cooling-only A/C)
②
The light-emitting diode driven by the main chip will light when the level is low.
③
LED indicates errors when protection is in effective.
1.6 Four-way Valve
It is controlled by relays. The main chip acts when output is high level.
1.7 Heating Condition for Crankcase
The crankcase will be heated when the temperature of the outer pipe is below 7
℃
and the compressor is
off.
The crankcase will no longer be heated when the temperature of the outer pipe is over 15
℃
.
The crankcase will no longer be heated when the compressor is on.
1.8 Condensate Pump
It is controlled by relays. The main chip acts when it outputs high level.
WINDOW TYPE
