Electronic Function - Daewoo DSA-241L Service Manual

8. Electronic Control Principle of Large Cooling Capacity Split Model A/C
8.1 Fan only mode
Fan speed is high/mid/low/ Auto
8.2 Cooling mode
The 4-way valve is closed at cooling mode.
The action of the compressor and the outdoor fan:
T: Room temp.
Ts: Setting temp.
Temp. up
Temp. down
Auto fan
Temp. up
Temp. down
Anti-freezing control to indoor evaporator
Temp. up
Temp. down
Condenser high temp. protection( only for heat pump)
Temp. up
Temp. down
The outdoor fan motor speed control in the cooling mode.
T3
32
30
8.3 Dehumidifying mode
8.3.1 Indoor fan speed at low speed.
8.3.2 Protection is same as cooling mode.
8.4 Heating mode
Condition
T> Ts+1
T<Ts+1
T> Ts
T<Ts
Condition(T=Indoor Temp.-Setting Temp.)
T<1℃
1 <T< 4℃
℃
T>5℃
T> 4℃
1 <T< 4℃
℃
T<1℃
Condition
Temp.
T> TE6
T< TE6
T> TE5
T< TE5
Temp. Condition
T> TE10
T< TE10
T> TE11
T< TE11
High speed
Compressor
On
Off
On
Off
Indoor fan speed
Compressor
Time
On
>4 Minutes Off
On
>4 Minutes Off
Compressor
Off
On
Off
On
Low speed
17
Outdoor fan
On
Off
On
Off
Low
Med.
High
High
Med.
Low
Outdoor fan
On
Off
On
Off