Discharge Temperature Control; Inverter Protection Control - LG ARUV Series Service Manual

3.2 Discharge temperature control

Outdoor unit control
Temperature range
Tdis >115˚C
105˚C< Tdis ≤ 112˚C
98 ˚C < Tdis ≤ 103˚C
Tdis ≤ 98˚C
Tdis >95 ˚C
Indoor unit control
Temperature range
Tdis >115 ˚C
103˚C < Tdis ≤ 115˚C
98 ˚C < Tdis ≤ 103 ˚C
Tdis ≤ 98 ˚C

3.3 Inverter protection control

item
<
Current 20A
<
Current 20A
<
Current 18A
<
Current 18A
DC Peak
High pressure switch
Low voltage
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Compressor
System stop
Frequency down +
const. Comp off
Liquid injection on
No frequency up
Pressure control
Pressure control
EEV
System stop
Emergency
SH control
Keep current control
SH control
control
System stop
Inv compressor 5Hz down/10 sec
Inv. compressor no frequency up
Inv. Compressor normal control
System stop
System stop
System stop
- 211 -
Liquid injection
Subcooling EEV
Max. limit
350 pulse
On
If liquid is on,
Keep
Max. limit
350 pulse
state
Max. limit
Off
150 pulse
10 pulse open /10sec
Off
Function
LGE Internal Use Only