Refrigerant Circuit Diagram; Table Of Symbols And Circuit Components - Mitsubishi Electric CAHV-P500YA-HPB Service Handbook

[ VI Refrigerant Circuit ]
VI Refrigerant Circuit

[1] Refrigerant Circuit Diagram

SV2
S
Air-side heat exchanger
(high pressure)
TH9
TH4
TH8
21S4
TH2
TH6
LEV1
E
Strainer Strainer
S S
Check valve
HWE10060
Note 1: Each unit has two circuits like the one in the diagram below.
Refrigerant flow direction (during heating)
Refrigerant flow direction (during defrost)
Check joint
63HS 63H1
PS HP
Check joint
(low pressure)
63LS
TH5
PS
TH1
TH3
Compr
TH7
essor

Table of symbols and circuit components

MAIN circuit
S
SV1
LEV2
E
Subcool heat
exchanger
Check valve
- 57 -
Symbol
Component
SUB circuit
LEV1 LEV1 Linear expansion valve (Main circuit)
LEV2 LEV2 Linear expansion valve (Injection)
63HS 63HS High-pressure sensor
63LS 63LS Low-pressure sensor
SV1 SV1 Solenoid valve (Injection circuit)
SV2 SV2 Solenoid valve (Hot gas circuit)
21S4 21S4 4-way valve
63H1 63H1 High-pressure switch
TH9 Outside temperature sensor
TH10 TH12 Inlet water temperature sensor
TH11 TH13 Outlet water temperature sensor
TH1 TH5 Compressor discharge temperature sensor
TH2 TH6 Compressor suction temperature sensor
TH4 TH8 Air-side heat exchanger inlet refrigerant temperature sensor
TH3 TH7 Compressor shell temperature
Strainer
S
Refrigerant tank
(Inner diameter: ø 95.2)
TH11
TH13
(Water outlet)
Water-side heat exchanger
Water inlet
TH10
TH12
GB