4-3. Normal Operation (HEAT Mode)
(*1) SV4 (n) of stopped compressor (n)=ON
(*2) It may be controlled.
Evaporative gas refrigerant (Low pressure)
Low-pressure circuit (Refrigerant recovery line)
High-pressure gas refrigerant
Condensed liquid refrigerant
SV41
SV42
Fan
SV
SV
SV
SV
Ind
o
o
r
U
ni
t
M
TC2 TCJ
TC1
Heating
P
M
V
TC2
TCJ
TC1
Heating
P
M
V
TC2 TCJ
TC1
Heating
P
M
V
TC2 TCJ
TC1
Heating
P
M
V
TS1
Fan motor
PMV1
TE1
TO
TS3
SV2
SV3D
TD1
TD2
TK2
TK1
PMV4
TL3
HPS
Accumulator
Pressure sensor
(low pressure)
Check
Joint
4-Way valve
Pressure sensor
(high pressure)
Oil
separetor
Check Joint
Compressor
1
Sub cool
heat exchanger
HPS
Compressor
2
Check joint
Left side
Main heat exchanger
Right side
Main heat exchanger
TL1
SV
SV52
SV
SV51
Outdoor Unit
SV3D
Control
SV4(n)
PMV1
Control
SV51/52
PMV4
Close(*2)
SV2
Control
4-Way valve
ON
OFF(*1)
OFF
Outdoor fan
Control
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