Mitsubishi Electric PU-P1.6VGA, Technical & Service Manual

Page: 23 / 44

23
8 REFRIGERANT SYSTEM DIAGRAM
PUH-P5YGA / PUH-P6YGA
Indoor unit
Outdoor unit
Thermistor
(TH2)
Strainer
Flexible tube
Service
port
Accumulator
Ball valve
Strainer
Compressor
Refrigerant pipe
19.05
A
(
{
3/4")
(with heat insulator)
Refrigerant pipe
9.52
A
(
{
3/8")
(with heat insulator)
Ball valve
(with service port)
Strainer
4-way valve
Service
port
High pressure
protect switch
Thermistor
(TH3)
Capillary tube
(O.D.4.0
✕
I.D.3.0-
R
200)
✕
2pcs
Distributor
with
strainer
Flared
connection
Drier
Strainer
Liner expansion valve
Bypass
valve
Thermistor
(TH5)
Thermistor
(TH1) Low
pressure
protect
switch
Muffler
Thermistor
(TH4)
Thermistor
(TH6)
Distributor
with
strainer
Strainer
Capillary
tube
w
1
Refrigerant flow in cooling
Refrigerant flow in heating
w
1 : O.D.4.0
✕
I.D.2.0-
R
250(PUH-P6YGA)
O.D.4.0
✕
I.D.2.0-
R
400(PUH-P5YGA)
PUH-P4YGA
Indoor unit
Outdoor unit
Thermistor
(TH5)
Strainer
Flexible tube
Service
port
Accumulator
Ball valve
Strainer
Compressor
Refrigerant pipe
19.05
A
(
{
3/4")
(with heat insulator)
Refrigerant pipe
9.52
A
(
{
3/8")
(with heat insulator)
Ball valve
(with service port)
Strainer
4-way valve
Service
port
High pressure
protect switch
Thermistor
(TH3)
Capillary tube
(O.D.4.0
✕
I.D.3.0-
R
350)
✕
2pcs
Distributor
with
strainer
Flared
connection
Refrigerant flow in cooling
Refrigerant flow in heating
Strainer
Liner expansion valve
Drier
Thermistor
(TH1)
Indoor coil
thermistor
(TH2)
Thermistor
(TH4)
Muffler
Thermistor
(TH6)
Distributor
with
strainer
Strainer
PUH-P1.6VGA / PUH-P2VGA / PUH-P2.5VGA / PUH-P2.5VGA
1
/ PUH-P3VGA
PUH-P1.6YGA / PUH-P2YGA / PUH-P2.5YGA / PUH-P2.5YGA
1
/ PUH-P3YGA
Indoor unit
Outdoor unit
Thermistor
(TH1)
Strainer
Flared
connection
Flexible tube
Service
port
Accumulator
Ball valve
Strainer
Compressor
Refrigerant pipe
15.88
A
(
{
5/8")
(with heat insulator)
Refrigerant pipe
9.52
A
(
{
3/8")
(with heat insulator)
Ball valve
(with service port)
Strainer
4-way valve
Service
port
High pressure
protect switch
Outdoor heat exchanger
Thermistor
(TH3)
Distributor
with
strainer
Thermistor
(TH6)
Distributor
with
strainer
Strainer
Drier
Indoor coil
thermistor
(TH2)
Thermistor
(TH5)
Muffler
Thermistor(TH4)
Linear expansion valve
Strainer
Refrigerant flow in cooling
Refrigerant flow in heating
<4-way valve solenoid coil>
Heating : ON
Cooling : OFF
OC180A--1.qxp 3/3/00 8:45 AM Page 23