Si37-701
Special Control
Function
119
Evaporating outdoor unit actuator
Symbol
Elect. symbol
Defrost operation
Operation after defrost
REYQ REMQ
Compressor 1
—
M1C
M1C
REYQ8•10•12P: 232Hz+ON
REYQ14•16P: 232Hz+232Hz
REMQ8P: 210Hz
REMQ10•12P: 210Hz+ON
REMQ14•16P: 210Hz+ON+ON
Upper limit 124Hz (STD Holds)
REYP400•480A: 232Hz+232Hz
REMP224A: 210Hz
REMP280•335A: 210Hz+ON
REMP400•450A:
210Hz+ON+ON
Compressor 2
M2C
M2C
Compressor 3
M3C
M3C
Outdoor unit fan 1
—
M1F
M1F
Fan control
Fan control
Outdoor unit fan 2
M2F
M2F
Four way valve (for heat changer
selection)
20SA
Y2S
Y9S
Y3S
ON
ON
Four way valve (for high- and low-
pressure gas pipe selection)
20SB
Y8S
Y2S
Holds
Holds
Electronic expansion valve (main)
EVM
Y1E
Y3E
Y1E
PI control
PI control
Electronic expansion valve
(subcooling)
EVT
Y2E
Y5E
Y3E
SH control
0pls
Electronic expansion valve
(refilling refrigerant)
EVJ
Y4E
Y2E
80pls
80pls
Solenoid valve (main bypass)
SVE
Y5S
Y10S
Y6S
OFF
OFF
Solenoid valve (hot gas)
SVP
Y4S
Y5S
OFF
OFF
Solenoid valve (liquid pipe of
refrigerant regulator)
SVL
Y3S
Y4S
0pls
0pls
Solenoid valve (gas discharge
pipe of refrigerant regulator)
SVG
Y1S
Y1S
0pls
0pls
Solenoid valve (drain pipe of
refrigerant regulator)
SVO
Y7S
Y7S
0pls
0pls
Solenoid valve (discharge pipe of
refrigerant regulator)
SVT
Y6S
Y8S
0pls
0pls
Cooling indoor unit actuator
Defrost operation
Fan
Thermo ON unit
Remote controller setting
Unit not in operation
OFF
Thermo OFF unit
Remote controller setting
Motorized valve
Thermo ON unit
Normal opening degree
Unit not in operation
0pls
Thermo OFF unit
0pls
Heating indoor unit actuator
Defrost operation
REYQ
REMQ
Fan
Thermo ON unit
OFF
LL
Unit not in operation
OFF
LL
Thermo OFF unit
OFF
LL
Motorized valve
Thermo ON unit
0pls
224pls
Unit not in operation
0pls
0pls
Thermo OFF unit
0pls
224pls
Cooling BS unit actuator
Elect. symbol
Defrost operation
Electronic expansion vale (EVH)
Y4E
0pls
Electronic expansion vale (EVL)
Y5E
760pls
Electronic expansion vale (EVHS)
Y2E
0pls
Electronic expansion vale (EVLS)
Y3E
480pls
Electronic expansion vale (EVSC)
Y1E
0pls
Heating BS unit actuator
Elect. symbol
Defrost operation
Electronic expansion vale (EVH)
Y4E
760pls
Electronic expansion vale (EVL)
Y5E
0pls
Electronic expansion vale (EVHS)
Y2E
60pls
Electronic expansion vale (EVLS)
Y3E
0pls (REYQ8~16P) 60pls (REMQ8~16P)
Electronic expansion vale (EVSC)
Y1E
0pls (PI control for cool/heat concurrent operation)
Summary of Contents for VRV III REYQ8PY1
Page 1: ...REYQ8 48PY1 R 410A Heat Recovery 50Hz Si37 701...
Page 59: ...Specifications Si37 701 48 Specifications...
Page 105: ...Refrigerant Flow for Each Operation Mode Si37 701 94 Refrigerant Circuit...
Page 230: ...Si37 701 Troubleshooting by Remote Controller Troubleshooting 219...
Page 374: ...Si37 701 Piping Diagrams Appendix 363 REYQ14P 16PY1 3D058153A S2NPL S1NPH...
Page 375: ...Piping Diagrams Si37 701 364 Appendix REMQ8PY1 3D057743...
Page 376: ...Si37 701 Piping Diagrams Appendix 365 REMQ10PY1 12PY1 3D057742...
Page 377: ...Piping Diagrams Si37 701 366 Appendix REMQ14PY1 16PY1 3D057741...
Page 382: ...Si37 701 Piping Diagrams Appendix 371 1 3 BS Unit 4D057985A...
Page 384: ...Si37 701 Wiring Diagrams for Reference Appendix 373 REYQ14 16PY1 3D056774C...
Page 385: ...Wiring Diagrams for Reference Si37 701 374 Appendix REMQ8PY1 3D055307E...
Page 386: ...Si37 701 Wiring Diagrams for Reference Appendix 375 REMQ10 12PY1 3D055308E...
Page 387: ...Wiring Diagrams for Reference Si37 701 376 Appendix REMQ14P 16PY1 3D055309E...
Page 392: ...Si37 701 Wiring Diagrams for Reference Appendix 381 FXCQ40M 50M 80M 125MVE 3D039557A...
Page 394: ...Si37 701 Wiring Diagrams for Reference Appendix 383 FXZQ20M 25M 32M 40M 50M8V1B 3D038359...
Page 395: ...Wiring Diagrams for Reference Si37 701 384 Appendix FXKQ25MA 32MA 40MA 63MAVE 3D039564C...
Page 399: ...Wiring Diagrams for Reference Si37 701 388 Appendix FXDYQ180M 200M 250MV1...
Page 402: ...Si37 701 Wiring Diagrams for Reference Appendix 391 FXMQ200MA 250MAVE 3D039621B...
Page 403: ...Wiring Diagrams for Reference Si37 701 392 Appendix FXHQ32MA 63MA 100MAVE 3D039801D...
Page 406: ...Si37 701 Wiring Diagrams for Reference Appendix 395 2 4 BS Unit 3D055928C...
Page 423: ...Piping Installation Point Si37 701 412 Appendix...
Page 427: ...Example of Connection R 410A Type Si37 701 416 Appendix...
Page 433: ...Method of Checking the Inverter s Power Transistors and Diode Modules Si37 701 422 Appendix...
Page 447: ...Si37 701 iv Index...
Page 451: ...Si37 701 viii Drawings Flow Charts...