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Service Manual SM-Inverter_(i)
8
MINIMUM RUN CONTROL
To prevent frequent compressor ON/OFF & to allow pressure equalization
•
The compressor will be on 3 minutes stand-by after turning OFF before it is allowed to turn ON.
•
OD fan OFF delay to improve pressure equalization & to prevent refrigerant from entering into
evaporator.
AUTO RESTART
-
Factory pre-set.
-
Allow unit to automatically resume the same operating mode it was in before a power failure.
4-WAY VALVE CONTROL
-
Change over switching is only carried out during operation.
-
OFF delayed is applied when the coil switches from ON to OFF.
Operating mode
4-way valve is
Heat, except for defrost
ON
Cool
Dry
Defrost
OFF
DEFROST CYCLE
During defrost
RXN-LV(1B/1B9)
Compressor
ON
4-way valve
OFF
EXV in operation room
Fixed opening
EXV in operation stop room
-
Outdoor fan
OFF
Indoor fan
OFF
Summary of Contents for SM-12-012
Page 1: ...Service Manual SM Inverter_ i Air Conditioners Service Manual Split Inverter SM 12 012...
Page 22: ...Service Manual SM Inverter_ i 22...
Page 26: ...Service Manual SM Inverter_ i 26...
Page 45: ...Service Manual SM Inverter_ i 45 Troubleshooting...
Page 47: ...Service Manual SM Inverter_ i 47...
Page 50: ...Service Manual SM Inverter_ i 50 ATXN FTXN 50 60 LV1B 9 ARXN RXN50 60 LV1B 9...
Page 51: ...Service Manual SM Inverter_ i 51 Refrigerant Diagram ATXN FTXN 25 35 50 60 LV1B 9...