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9
REFRIGERANT SYSTEM DIAGRAM
PLA-P3AA.UK / PUH-P3VGA, PUH-P3YGA
PLA-P4AA.UK / PUH-P4YGA
PLA-P5AA.UK / PUH-P5YGA
PLA-P6AA.UK / PUH-P6YGA
Indoor unit
Refrigerant pipe
15.88
mm
( 5/8")
(with heat insulator)
Flexible tube
Ball valve
Strainer
4-way valve
Muffler
Muffler
Service
port
Service
port
High pressure
switch
Outdoor unit
Strainer
Strainer
Compressor
Accumulator
Drier
Ball valve
(with service port)
Refrigerant pipe
9.52
mm
( 3/8")
(with heat insulator)
Distributor
with
strainer
Distributor
with
strainer
Distributor
with
strainer
Thermistor
(TH1)
Thermistor
(TH5)
Thermistor
(TH4)
Service
port
High pressure
switch
Thermistor
(TH4)
Thermistor
(TH6)
Thermistor
(TH3)
Thermistor
(TH2)
Strainer
Flared
connection
<4-way valve solenoid coil>
Heating ON
Cooling OFF
Indoor unit
Refrigerant pipe
19.05
mm
( 3/4")
(with heat insulator)
Flexible tube
Ball valve
Strainer
4-way valve
Service
port
Outdoor unit
Capillary
tube
Strainer
Strainer
Compressor
Accumulator
Ball valve
(with service port)
Refrigerant pipe
9.52
mm
( 3/8")
(with heat insulator)
Strainer
Flared
connection
Bypass
valve
Refrigerant flow in cooling
Refrigerant flow in heating
Thermistor
(TH6)
Thermistor
(TH3)
Distributor
with
strainer
Thermistor
(TH1)
Thermistor
(TH5)
Thermistor
(TH2)
Drier
Distributor
with
strainer
Service
port
High pressure
switch
Thermistor
(TH4)
Indoor unit
Refrigerant pipe
19.05
mm
( 3/4")
(with heat insulator)
Flexible tube
Ball valve
Strainer
4-way valve
Service
port
Low
pressure
switch
Outdoor unit
Capillary
tube
Strainer
Strainer
Linear expansion valve
Linear expansion valve
Linear expansion valve
Compressor
Accumulator
Ball valve
(with service port)
Refrigerant pipe
9.52
mm
( 3/8")
(with heat insulator)
Strainer
Flared
connection
Thermistor
(TH6)
Thermistor
(TH3)
Distributor
with
strainer
Thermistor
(TH1)
Thermistor
(TH5)
Thermistor
(TH2)
Drier
Capillary
tube
Muffler
Unit : mm(inch)
OC241-B-2.qxp 04.9.29 5:17 PM Page 54