Trane 4TVH0086FE000AA Service Manual page 26

20/22/24HP
Figure 2-2.3: 20/22/24HP piping diagram
4
3
2
Legend
No. Parts name
1 Compressor
2 Discharge temperature switch
3 High pressure switch
4 High pressure sensor
5 Oil separator
6 Four-way valve
7 Heat exchanger
8 Electronic expansion valve (EXV)
9 Low pressure switch
10 Fan motor
11 Fan
12 Stop valve (liquid side)
11
E S C
6
5
2
T7C1
T7C2
1 1
11
10 10
7
T3
T4
9 15
SV2
SV9
No. Parts name
13 Stop valve (gas side)
15 Accumulator
T3 Heat exchanger temperature sensor
T4 Outdoor ambient temperature sensor
T7C1 Compressor A discharge temperature sensor
T7C2 Compressor B discharge temperature sensor
SV2 Liquid injection cooling valve
SV4 Oil return valve
SV5 Fast defrosting (in heating) and unloading (in cooling) valve
SV6 Refrigerant bypass EXV valve
SV9 Compressor B pressure balance valve
25
SV5
EXVA
13
8
12