44 Room Air Conditioner
• 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.
• 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.
Operation
Portection from overheating of power module
Portection from overheating of compressor
T off
°
C
T2
°
C
Heat Sink Temp.
T1
°
C
T on
°
C
COMP
Freq.
Free
OFF
Free
Fc-1
Fc-1
Fc-2
Fc-2
∆
T = (T off - T on)
T1 = T on +
∆
T
T2 = T on + 2 *
∆
T
D-Pipe Temp.
COMP Freq.
Free
Free
Fh min
OFF
Fc-1
Fc-1
Fc-2
Fc-2
∆
T = (T off - T2)/2
T1 = T2 + 2 *
∆
T
T3 = T2 +
∆
T
No.
MODEL
T on
T off
1
AS-W096U_0 Series
85
95
2
AS-W126U_0 Series
85
95
3
AS-W096U_1 Series
85
95
4
AS-W126U_1 Series
85
95
No.
MODEL
T on
T off
1
AS-W096U_0 Series
102
110
2
AS-W126U_0 Series
88
100
3
AS-W096U_1 Series
95
105
4
AS-W126U_1 Series
95
105
