Toshiba RAS-5M34U2AVG-E Service Manual page 112

11-7. 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 : DX270A2T-20L)
2 Outdoor fan motor
(Model : WDF-340-A100-1)
Compressor thermo. Bimetal
3
type (Model : CS-12AL)
4 High pressure switch
(Model : ACB-4UB83W)
5
Outdoor temperature sensor (TO),
pipe temperature sensor
(TGa, TGb, TGc, TGd, TGe),
discharge temperature sensor (TD),
suction temperature sensor (TS),
evaporator temperature sensor (TE).
TD
TO, TE, TS, TGa to TGe
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
TO, TE, TS (kΩ)
TGa to TGe (kΩ)
TD : Discharge temp. sensor
TO : Outdoor temp. sensor
TE
: Outdoor heat exchanger temp. sensor
: Suction temp. sensor
TS
TGa to TGe : Gas side temp. sensor
Checking procedure
Red
Position
Red - White
White - Black
Black - Red
Black
Red
Position
Red - White
White - Black
Black - Red
Black
Temperature
10°C
TD (kΩ) 105
20.6
20.0
- 112 -
FILE NO. SVM-18053
Resistance value
0.49 ± 0.03Ω
at 20°C
Resistance value
17.3 ± 1.7Ω
at 20°C
20°C 25°C 40°C 50°C
64 51 27 18
12.6 10.0 5.1 3.4
12.5 10.0 5.3 3.6