Discharge Temperature Control; Inverter Protection Control - LG Multi V ARWM072CAS5 Service Manual

Function

3.2 Discharge temperature control

• Outdoor unit control
Temperature range
Tdis > 113 ℃(235.4 ℉)
Tdis > 110 ℃(230 ℉)
Tdis ≥ 105 ℃(221 ℉)
Tdis ≥ 100 ℃(212 ℉)
Tdis < 100 ℃(212 ℉)
SC : Sub Cooling, SH : Super Heating

3.3 Inverter protection control

AC Input Current
Compressor Current
h AC input current is input current of inverter compressor except constant current (current pass through noise filter)
Compressor
-5 Hz/10 Second
-5 Hz/30 Second
Frequency holding
+3 Hz or less
Normal control
Compressor(kW)
Normal Operation
17
17
- 24 -
Sub cooling EEV
SC,SH decrease control
SC,SH decrease control
SC,SH decrease control
SC,SH decrease control
SC,SH decrease control
Cooling & Heating
Frequency Down
25 A or less 25 A or more
29 A or less 29 A or more
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IDU EEV
SH decrease control
SH decrease control
SH decrease control
SH decrease control
SH decrease control
System Stop
27 A or more
40 A or more