Mitsubishi Electric CAHV-P500YA-HPB Service Handbook

[ VI Refrigerant Circuit ]
- 57 -
HWE10060 GB
VI Refrigerant Ci rcuit
[1] Refrigerant Circuit Diagram
Air-side heat exchanger inlet refrigerant temperature sensor
Compressor shell temperature
Linear expansion valve (Injection)
High-pressure sensor
Low-pressure sensor
Linear expansion valve (Main circuit)
Outside temperature sensor
Inlet water temperature sensor
Outlet water temperature sensor
Compressor discharge temperature sensor
Compressor suction temperature sensor
TH9
TH12TH10
TH13TH11
TH5TH1
TH6TH2
TH8TH4
TH7TH3
Note 1: Each unit has two circuits like the one in the diagram below.
63HS
63LS
21S4
63H1
Check joint
(high pressure)
Check joint
(low pressure)
Solenoid valve (Injection circuit)
Solenoid valve (Hot gas circuit)
4-way valve
High-pressure switch
Water-side heat exchanger
Water inlet
(Water outlet)
Air-side heat exchanger
Subcool heat
exchanger
Refrigerant flow direction (during heating)
Refrigerant flow direction (during defrost)
Table of symbols and circuit components
Component
Symbol
LEV1 LEV1
LEV2 LEV2
63HS 63HS
63LS 63LS
SV1 SV1
SV2
21S4
SV2
21S4
63H1 63H1
SUB circuitMAIN circuit
LEV1
LEV2
SV1
SV2
Strainer
Strainer
Check valve
Check valve
Strainer
Refrigerant tank
(Inner diameter: ø 95.2)
TH8
TH4
TH6
TH2
TH1
TH5
TH7
TH3
TH9
TH11
TH13
TH10
TH12
E
E
HP
S
S
S
S
S
PS
PS
Compr
essor

Mitsubishi Electric CAHV-P500YA-HPB Specifications

General

Brand	Mitsubishi Electric
Model	CAHV-P500YA-HPB
Category	Heat Pump
Language	English