Service manual

16
7
REFRIGERANT SYSTEM DIAGRAM
Service
port
Capillary
tube
Indoor
heat
exchanger
Indoor coil
thermistor
(RT2)
Distributor
with
strainer
PLH-1.6 (O.D.3.2 ✕ I.D.1.6 –R 630) PLH-2.5 (O.D.3.2 ✕ I.D.1.8 –R 430)
wPLH-1.6 (O.D.3.2 ✕ I.D.1.8 –R 400)
PLH-2 (O.D.4.0 ✕ I.D.2.0 –R 430)
PLH-2.5 (O.D.4.2 ✕ I.D.2.4 –R 1550)
PLH-2 (O.D.3.2 ✕ I.D.1.8 –R 630)
Restrictor
valve
Refrigerant pipe
(option)
9.52mm( 3.8")
(with heat insulator)
Ball valve
(with service port)
Indoor unit
Strainer
Refrigerant pipe
(option)
15.88mm( 5/8")
(with heat insulator)
Flexible tube
Flared
connection
Ball valve
Strainer
4-way valve
Oil separator
Service
port
High pressure
control switch
High pressure
protect switch
Outdoor unit
Outdoor heat exchanger
Flow of refrigerant (cooling)
Flow of refrigerant (heating)
Outdoor coil
thermistor
(TH)
Bypass
valve
Restrictor
valve
w
Capillary
tube
Strainer
Compressor
Accumulator
Refrigerant flow in cooling
Refrigerant flow in heating
R.V.coil
Heating ON
Cooling OFF
PLH-1.6KKHB·UK/PUH-1.6VKA3·UK
PLH-2KKHB·UK/PUH-2VKA2·UK
PLH-2.5KKHB·UK/PUH-2.5VKA2·UK
Unit : mm