SiUS372201EB
Special Control
Part 4 Functions and Control
168
7.2.2 Oil Return Operation in Heating Operation
Part name
Electric symbol
Function of functional part
Compressor motor
M1C, M2C
Constant high pressure control
Fan motor
M1F, M2F
For heat exchanger mode
Electronic expansion valve (Heat exchanger right upper)
Y1E
Same as normal control
Electronic expansion valve (Heat exchanger right lower)
Y2E
Electronic expansion valve (Heat exchanger left)
Y5E
Electronic expansion valve (Subcooling heat exchanger)
Y3E
Same as normal control
Electronic expansion valve (Receiver gas purge)
Y4E
Same as normal control
Electronic expansion valve (Refrigerant cooling IPM)
Y6E
Same as normal control
Electronic expansion valve (Refrigerant cooling air)
Y7E
Solenoid valve (Oil separator oil return)
Y1S, Y2S
ON
Solenoid valve (Liquid shutoff)
Y3S
Same as normal control
Solenoid valve (Accumulator oil return)
Y4S
ON
Solenoid valve (Refrigerant adjustment)
Y5S
OFF
Solenoid valve (Injection)
Y6S
Same as normal control
Four way valve (Heat exchanger right upper)
Y10S
Hold
Four way valve (Heat exchanger right lower)
Y7S
Four way valve (Heat exchanger left)
Y9S
Four way valve (HP/LP gas pipe)
Y8S
Solenoid valve (Refrigerant cooling bypass)
Y11S
Same as normal control
Ending condition
A lapse of 6 minutes while the frequency is more than
that of oil return operation.
Indoor unit actuator
Cooling
Heating
Fan
Thermostat ON unit
Remote controller setting
Remote controller setting
Non-operating unit
OFF
OFF
Thermostat OFF unit
Remote controller setting
Remote controller setting
Electronic expansion valve
Thermostat ON unit
Normal control
Normal control
Non-operating unit
224 pulse
224 pulse
Thermostat OFF unit
Forced thermostat ON
224 pulse
Branch Selector unit actuator
Normal simultaneous cooling/heating
Normal heating
Cooling
Heating
Electronic
expansion
valve
(EVSC)
Y1E
Thermostat ON
0 pulse
Subcooling degree control
0 pulse
Non-operating
0 pulse
0 pulse
0 pulse
Thermostat OFF
0 pulse
0 pulse
0 pulse
Electronic
expansion
valve
(EVH)
Y2E
Thermostat ON
0 pulse
6,000 pulse
6,000 pulse
Non-operating
0 pulse
6,000 pulse
6,000 pulse
Thermostat OFF
0 pulse
6,000 pulse
6,000 pulse
Electronic
expansion
valve
(EVL)
Y3E
Thermostat ON
6,000 pulse
0 pulse
0 pulse
Non-operating
6,000 pulse
0 pulse
0 pulse
Thermostat OFF
6,000 pulse
0 pulse
0 pulse
Содержание VRV EMERION REYQ-AATJA
Страница 1: ...Service Manual Heat Recovery 60 Hz REYQ AATJA B 208 230 V REYQ AAYDA B 460 V SiUS372201EB...
Страница 458: ...Check SiUS372201EB 451 Part 6 Service Diagnosis Reference Reference CHECK 7 Refer to page 457 CHECK 8 Refer to page 458...
Страница 490: ...Wiring Diagrams SiUS372201EB 483 Part 7 Appendix 1 2 2 Multi Branch Selector Unit Standard Series BS4Q54TVJ 3D089123B...
Страница 492: ...Wiring Diagrams SiUS372201EB 485 Part 7 Appendix BS6 8Q54TVJ 2D089122B...
Страница 493: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 486 BS10 12Q54TVJ 2D089121B...
Страница 499: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 492 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Страница 500: ...Wiring Diagrams SiUS372201EB 493 Part 7 Appendix BYCQ125BGW1 Self Cleaning Decoration Panel for FXFQ TVJU 3D076375A...
Страница 501: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 494 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Страница 505: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 498 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Страница 506: ...Wiring Diagrams SiUS372201EB 499 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Страница 507: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 500 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...
Страница 509: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 502 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Страница 513: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 506 FXHQ12 24 36MVJU 3D048116C...
Страница 514: ...Wiring Diagrams SiUS372201EB 507 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Страница 521: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 514 VAM1200GVJU 3D073270D...