206
Outdoor Unit
Function
■
Oil return operation time : 3 min for running step
■
Oil return operation skip condition : if liquid injection begins, Oil return operation goes to ending operation
2.1.2 Oil return control on heating mode
■
Oil return operation time : 3 min for running step
■
Oil return operation skip condition : if liquid injection begins, Oil return operation goes to ending operation
Fan
Keep state
Starting
Indoor unit
Thermo on unit
LEV
Oil return
pulse
Keep state
Running
Oil return operation
pulse
Keep state
Ending
Return to
base pulse
Thermo off unit
LEV
Close pulse
Oil return operation
pulse
Close pulse
Inv Compressor
Fan
Main LEV
4 way valve
Subcooling LEV
30 Hz
0 Hz
Full open
On
→
off
min.
Starting
Component
Sub unit ’s
compressor
All off
Hot gas bypass
valve
On
60 Hz
High pressure
control
Full open
Off
min.
Running
On
On
30 Hz
High pressure
control
Base pulse
On
min.
Ending
Off
On
Fan
Off
Starting
Indoor unit
Thermo on unit
LEV
Oil return
pulse
Off
Running
Oil return operation
pulse
Off
Ending
Return to
base pulse
Thermo off unit
LEV
Heating close pulse
Oil return operation
pulse
Heating close pulse
Summary of Contents for multi V PLUS
Page 21: ...Service Manual 21 Indoor Unit Indoor Units ...
Page 74: ...74 Indoor Unit ...
Page 86: ...86 Indoor Unit ...
Page 142: ...142 Indoor Unit ...
Page 160: ...160 Indoor Unit ...
Page 179: ...Service Manual 179 Outdoor unit ...
Page 239: ...Service Manual 239 Wiring Diagrams 5 8 60Hz 220V Main Outdoor Unit 8HP 10HP 12HP ...
Page 245: ...Service Manual 245 Trouble shooting guide ...
Page 296: ...296 Trouble Shooting Guide ...
Page 297: ...Service Manual 297 Appendix ...
Page 303: ...Service Manual 303 Exploded View Replacement Parts List ...