SiAF332111E
Control for 4/5/10/12 HP Outdoor Unit
Part 4 Functions and Control
55
Note(s)
1. Control for 4/5/10/12 HP Outdoor Unit
1.1 Operation Mode
If the indoor unit stops or the thermostat turns OFF while in oil return control, pump down
residual control is performed on completion of oil return control.
Startup control
Oil return control
YES
NO
Error/Standby
Normal operation
Indoor unit thermostat ON
Indoor unit thermostat ON
Error/Standby
Error/Standby
Operation in
stop control
Pressure
equalization
prior to startup
Indoor unit stop or
thermostat OFF
Cooling operation
Oil return starting
conditions are met.
Indoor unit stop or
thermostat OFF
Indoor unit stop or
thermostat OFF
Error/
Standby
Pump down
residual
control
Restart standby
(Compressor stop)
• Cooling startup
control
• Compressor PI control
• Electronic expansion
valve PI control
• Protection control
Summary of Contents for VRV S RXQ4/5ARV1
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ4 5ARV1 RXMQ6ARV1 RXMQ8 10 12ARY1 SiAF332111E...
Page 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Page 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Page 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Page 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...