Refrigerant System Diagram - Mitsubishi Electric PK-2.5FLD Technical & Service Manual

8

REFRIGERANT SYSTEM DIAGRAM

PK-3FLD, PK-3FLD
Indoor heat
exchanger
strainer
Pipe
temperature
thermistor
RT2
Distributor
with
strainer
PK-2.5FLD, PK-2.5FLD
PK-3FLD, PK-3FLD
PK-4FLSD, PK-4FLSD
INDOOR UNIT
PK-2.5
PK-3
PK-4
Indoor heat
exchanger
Strainer
Pipe
temperature
thermistor
RT2
Distributor
with
strainer
Refrigerant pipe [ 9.52(3/8")
(with insulator) option
, PK-3FLD / PU-3VJC, PU-3YJC
1 2
Refrigerant pipe [15.88(5/8")
(with insulator) option
Flexible tube
Flared
connection
Flared
connection
Refrigerant pipe [ 9.52(3/8")
(with heat insulator) option
, PK-2.5FLD / PU-2.5VJA
1 2
, PK-3FLD / PU-3NJA
1 2
, PK-4FLSD / PU-4VLJSA
1 2
PK-2.5 / PK-3 Refrigerant pipe [15.88(5/8")
(with insulator) option
PK-4 Refrigerant pipe [19.05(3/4")
(with insulator) option
Flexible tube
Flared
connection
Flared
connection
Low pressure
strainer
switch
Ball
Check
Charge
valve
pIug
pIug
Accumulator
Compressor
[O.D.3.2 oI.D.1.8 oL800]
o2pcs
Ball valve
(with service port)
flow of refrigerant
, PU-2.5NJA
2
1
, PU-4YJSA
2
Low pressure
strainer
switch
Ball
Charge
Check
valve
pIug
pIug
Accumulator
Compressor
Capillary tube for
injection Only
PU-2.5NJA
PU-2.5VJA
PU-3NJA
Ball valve
(with service port)
Capillary tube size
PU-2.5 [O.D.3.2 I.D.1.6 L760] 2pcs
PU-3 [O.D.3.2 I.D.1.8 L800] 2pcs
PU-4 [O.D.3.2 I.D.2.0 L840] 2pcs
16
Unit : mm(inch)
Outdoor heat
High pressure
exchanger
switch
strainer
Capillary tube
D.P.R.
(Discharge pressure regulator)
1
, PU-4TJSA
3 2
OUTDOOR UNIT
PU-2.5/3J series
High pressure
PU-4J series
switch
Strainer
Outdoor heat
exchanger
Muffler
Capillary
tube
1
PU-4TJSA
2 2
PU-4YJSA
1 3
flow of refrigerant