LG Room Air Conditioner - Hawco
LG Room Air Conditioner - Hawco
LG Room Air Conditioner - Hawco
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Portection from overheating of power module<br />
• If the temperature of the heat sink TH. reaches over Toff, the Compressor stop instantly.<br />
• It will be limited the compressor operating frequency according to the heat sink TH.(refer to below FIG.)<br />
• It will be blink 4 times, when the thermistor is open or short, also the temperature is over Toff.<br />
T off °C<br />
T2 °C<br />
T1 °C<br />
T on °C<br />
COMP<br />
Freq.<br />
∆T = (T off - T on)<br />
T1 = T on + ∆T<br />
T2 = T on + 2 * ∆T<br />
Heat Sink Temp.<br />
Free Fc-1 Fc-2 Fc-1 Fc-2 OFF Free<br />
Portection from overheating of compressor<br />
Operation<br />
• If the temperature of the discharge pipe of compressor reaches over 130°C or below -30°C the compressor<br />
stop instantly.<br />
• It will be limited the compressor operating frequency according to the compressor dome TH.(Refer to below<br />
Fig.)<br />
• Temperature range by COMP SPEC varies by 10°C.<br />
D-Pipe Temp.<br />
∆T = (T off - T2)/2<br />
T1 = T2 + 2 * ∆T<br />
T3 = T2 + ∆T<br />
COMP Freq. Fh min Free Fc-1 Fc-2 OFF Fc-2 Fc-1 Free<br />
No. MODEL T on T off<br />
1 AS-W1863_ Series 85 95<br />
2 AS-W2463_ Series 85 95<br />
No. MODEL T on T off<br />
1 AS-W1863_ Series 98 108<br />
2 AS-W2463_ Series 98 108<br />
Service Manual 43
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