LG AS-W096ERH0 Service Manual page 30

Portection from overheating of power module
• If the temperature of the heat sink TH. reaches over Toff, the Compressor stop instantly.
• It will be limited the compressor operating frequency according to the heat sink TH.(refer to below FIG.)
• It will be blink 4 times, when the thermistor is open or short, also the temperature is over Toff.
∆T = (T off - T on)
T1 = T on + ∆T
T2 = T on + 2 * ∆T
T off °C
T2 °C
T1 °C
T on °C
COMP
Free Fc-1
Freq.
Portection from overheating of compressor
• If the temperature of the discharge pipe of compressor reaches over 130°C or below -30°C the compressor
stop instantly.
• It will be limited the compressor operating frequency according to the compressor dome TH.(Refer to below
Fig.)
• Temperature range by COMP SPEC varies by 10°C.
D-Pipe Temp.
T off °C
T3 °C
T2 °C
T1 °C
-13 °C
COMP Freq. Free
Fh min
Heat Sink Temp.
Fc-2 Fc-1 Fc-2 OFF
∆T = (T off - T2)/2
T1 = T2 - 2 * ∆T
T3 = T2 + ∆T
Fc-1 Fc-2 OFF Fc-2
No.
1 AS-W096ERH0/BH0/VH0
2 AS-W126ERH0/BH0/VH0
Free
No.
1 AS-W096ERH0/BH0/VH0
2 AS-W126ERH0/BH0/VH0
Fc-1 Free
Operation
MODEL T on
85
85
MODEL T on
100
100
Service Manual 35
T off
95
95
T off
110
110