AEX2M14LR
4 – 1
AEX2M14LR
Service Manual
CHAPTER 4.
REFRIGERATION CYCLE
[1] REFRIGERATION SYCLE
Refrigeration Cycle
Flow of Refrigerant
1. Cycle temperature and pressure in stop valve
Running unit
No
Operation Mode
Cool (MAX)
Cool (Test run)
Heat (MAX)
Heat (Test run)
AY-XPM7FR &
AY-XPM7FR &
(2 units)
(1)
72
63
69
43
(2)
40
38
1
3
(3)
13
15
28
24
(4)
17
21
4
4
Stop valve pressure (gas side) (MPa gauge)
1.00
1.13
2.35
1.72
Frequency (Hz)
60
35
70
30
AY-XPM12FR
(1 unit)
(1)
80
67
77
54
(2)
38
37
2
3
(3)
10
13
39
28
(4)
12
18
3
5
Stop valve pressure (gas side) (MPa gauge)
0.78
1.01
3.20
2.25
Frequency (Hz)
65
35
70
35
Heat
exchanger
Heat exchanger
Heat exchanger
UNIT B
UNIT A
STOP valve (Liquid)
Compressor
4-way
valve
Accumulator
STOP valve (Gas)
Expansion valve B
Expansion valve A
(1)
(4)
(2)
(3)
(3)
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
UNIT B
UNIT A
Cooling
heating
Summary of Contents for AE-X2M14LR
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