Toshiba RAS-3M26S3AV-E Service Manual page 82

11-8. Inspection of the Main Parts
[1] Sensor characteristic table
100
90
80
70
60
50
40
30
20
10
0
0 10
Outdoor Unit
No. Part name
1 Compressor
(Model : DA220A2T-20LD)
2 Outdoor fan motor
(Model : IDF-280-A60-1)
3 Compressor thermo. Bimetal type
(Model : CS-12AL)
4 High pressure switch
(Model : ACB-4UB83W)
5 Outdoor temperature sensor (TO),
pipe temperature sensor
(TGa, TGb, TGc),
discharge temperature sensor (TD),
suction temperature sensor (TS),
evaporator temperature sensor
(TE),
TD
TO, TE, TS, TGa to TGc
20 30 40 50
Temperature (˚C)
Measure the resistance value of each winding by using the tester.
White
Measure the resistance value of winding by using the tester.
White
Check conduction by using the tester.
Check conduction by using the tester.
Disconnect the connector, and measure resistance value with the tester.
(Normal temperature)
Sensor
TGa to TGc (kΩ)
TD
TO
TE
TS
TGa to TGc : Gas side temp. sensor
Checking procedure
Red
Black
Red
Black
Temperature
10°C
TD (kΩ) 105
TO, TE, TS (kΩ) 20.6
20.0
- 82 -
FILE NO. SVM-15074
: Discharge temp. sensor
: Outdoor temp. sensor
: Outdoor heat exchanger temp. sensor
: Suction temp. sensor
Position Resistance value
Red - White
White - Black 0.61 ± 0.03Ω
Black - Red
Under 20°C
Position Resistance value
Red - White
White - Black 14.8 ± 1.5Ω
Black - Red
For details, refer to Section 11-10.
20°C 25°C 40°C
64 51 27
12.6 10.0 5.1
12.5 10.0 5.3
50°C
18
3.4
3.6