Trane 4TVH0086FE000AA Service Manual page 24

2 Piping Diagrams
8/10/12HP
Figure 2-2.1: 8/10/12HP 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)
13 Stop valve (gas side)
11
E S C
6
5
T7C1
1
9
10
7
T3
T4
15
No. Parts name
14 Plate heat exchanger
15 Accumulator
T3 Heat exchanger temperature sensor
T4 Outdoor ambient temperature sensor
T6A Plate heat exchanger inlet temperature sensor
T6B Plate heat exchanger outlet temperature sensor
T7C1 Compressor A discharge temperature sensor
T7C2 Compressor B discharge temperature sensor
SV4 Oil return valve
SV5 Fast defrosting (in heating) and unloading (in cooling) valve
SV6 Refrigerant bypass EXV valve
SV8A Compressor A vapor injection valve
23
8
EXVA
SV5
14
8
EXVC
13
12