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Mitsubishi Electric PURY-(E)P200 Service Handbook page 142

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Table of Contents
[ VII Control ]
-13- Cooling/heating Circuit Control and General Function of System Equipment
Operation
Schematic diagram of refrigerant circuit
status
4-way valve
A
O
Cooling
M
only
Fan
High-pressure
liquid
Outdoor unit
A
O
B
Cooling
main
C
A
O
Heating
only
A
M
Heating
main
K
HWE07130
Check valve
Selector valve
M
Low-
pressure
Low-pressure two-phase
pipe
Low-pressure
M
gas
M
Heat exchanger
LEV
M
Gas-liquid
separator
Indoor unit
High-
pressure
pipe
LEV
High-pressure
liquid
BC controller
Cooling
N
M
Low-
pressure
Cooling
Low-pressure two-phase
gas
N
M
Cooling
N
M
Heating
High-
F
G
pressure
gas
D
E
High-pressure
two-phase
I
High-pressure
J
K
liquid
L
Low-
pressure
High-pressure liquid
two- phase
L
L
L
High-
pressure
gas
F
High-pressure
liquid
Heating
J
B
C
Low-
pressure
Heating
High-pressure liquid
two- phase
B
C
Heating
B
C
Cooling
H
G
High-
pressure
gas
Low-pressure
Low-
I
gas
pressure
two- phase
High-pressure
E
liquid
Gas
Schematic diagram of refrigerating cycle
Two-phase
Liquid
L
Pressure
L
L
L
Liquid
L
M
L
L
J G I
L
L
H
M
M
M
L
M
M
M
F
D
D
C
D
E
F
F
G
I
- 133 -
O
Gas-liquid mixture
D C
F
K H
N
O
D
H
K
J
Gas
A
Enthalpy
(energy)
E
B
A
A
O
B
A
M
GB
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