Outdoor Unit; Puz-A12Nka7 Puz-A18Nka7; Puz-A12Nka7-Bs Puz-A18Nka7-Bs; Puz-A24Nha7 Puz-A30Nha7 Puz-A36Nka7 Puz-A42Nka7 - Mitsubishi Electric PLA-A12EA7 Service Manual

6 REFRIGERANT SYSTEM DIAGRAM

6-2. OUTDOOR UNIT

PUZ-A12NKA7

PUZ-A12NKA7-BS PUZ-A18NKA7-BS

Stop valve
(with service port)
Refrigerant GAS pipe
[1/2 [12.7 mm]
Stop valve
Refrigerant LIQUID pipe
[1/4 [6.35 mm]
PUZ-A24NHA7

PUZ-A24NHA7-BS PUZ-A30NHA7-BS PUZ-A36NKA7-BS PUZ-A42NKA7-BS

Refrigerant GAS pipe
[5/8 [15.88 mm]
Stop valve
(with service port)
Refrigerant LIQUID pipe
[3/8 [9.52 mm]
Due to continuing improvement, above specification may be subject to change without notice.
© 2017 Mitsubishi Electric US, Inc.
PUZ-A18NKA7
Strainer
#50
Thermistor TH32
(Suction)
Strainer
#100
Linear
Power
expansion valve B
receiver
Strainer
#100
PUZ-A30NHA7
4-way valve
Stop valve
Strainer
#50
Charge plug
(Low pressure)
Strainer
#100
Linear
expansion valve B Power
receiver
Strainer
#100
4-way valve
Charge plug
Muffler
High pressure
switch 63H
Thermistor TH4
(Discharge)
Thermistor TH33
(Comp. surface)
Compressor
Linear expansion valve A
PUZ-A36NKA7
Charge plug
(High pressure)
Muffler
High pressure
switch 63H
Thermistor TH32
(Suction)
Thermistor TH4
(Discharge)
Thermistor TH33
(Comp. surface)
Compressor
Strainer
#100
Linear expansion valve A
P-Series (March 2017)
<4-way valve solenoid coil>
Heating: ON
Cooling: OFF
Thermistor TH7
Heat exchanger
(Outdoor)
Thermistor TH6
(Outdoor 2-phase pipe)
Thermistor TH3
(Outdoor pipe)
Distributor
Strainer
#100
Refrigerant flow in cooling
Refrigerant flow in heating
PUZ-A42NKA7
Thermistor TH7
(Outdoor)
Heat exchanger
Thermistor TH6
(Outdoor 2-phase pipe)
Thermistor TH3
(Outdoor pipe)
Strainer
#100
Refrigerant flow in cooling
Refrigerant flow in heating
Unit: inch [mm]
Distributor
51