9.2 Component Layout and Refrigerant Circuits
252-450
T8
ST1
5
E S C
6
PH
4
3
HPS
2
O/S
T7C1
1
20
INV1
Heat
SV8A
15
16
6
5
12
21
17
7
18
4
3
2
10
11
9
7
T4
T3
21
SV7
16
18
PL
ACC
19
14
15
20
1
Figure 9.4
56
Tg
EEVA
9
TL
SV5
14
T6B
MHE
T6A
12
13
EEVC
19
17
Legend
Part name
No.
1
Compressor
2
Oil separator
3
High pressure switch
4
Check value
5
4-way valve ST1
6
High pressure sensor
7
Fan
8
Microchannel heat exchanger
Electronic expansion valve
9
(EEVA/EEVB)
Stop valve (gas side)
10
Stop valve (liquid side)
11
Electronic expansion valve (EEVC)
12
Electronic expansion valve (Optional
13
EEVE)
Injection bypass solenoid valve (SV5)
14
Injection valve(SV8A/SV8B)
15
Hot gas bypass solenoid valve (SV7)
16
Charge port
17
Low pressure sensor
18
Gas-liquid separator
19
Muffler
20
Heat exchanger
21
Legend
Main exchanger pipe temperature
T3
sensor
Outdoor ambient temperature sensor
T4
Liquid stop valve inlet temperature
T5
sensor
Microchannel heat exchanger inlet
T6A
temperature sensor
Microchannel heat exchanger outlet
T6B
temperature sensor
Discharge temperature sensor
T7C1
Suction temperature sensor
T71
Condenser inlet temperature sensor
T8
Condenser outlet temperature sensor
TL
Gas pipe temperature sensor
Tg
Electric control box chamber
Tb
temperature sensor
10
8
T5
11
V.1