![background image](http://html1.mh-extra.com/html/daikin/sm-12-012/sm-12-012_service-manual_2459094007.webp)
Service Manual SM-Inverter_(i)
7
THERMISTORS IN ARXN/ RXN-LV1B(9)
FUNCTIONS OF THERMISTOR
Thermistor
Functions
Discharge pipe
Used for discharge superheat (SH) & EXV control.
Outdoor coil
Used for defrost control. Also used for inverter current protection control in
Series II.
Outdoor air
Used for defrost & outdoor fan speed control. Also used for PMV, overall
current protection & preheating operation control.
Heat sink
Used for capturing heat sink temperature.
Suction pipe
Used for EXV (SH) & suction pipe SH protection control in heating.
Gas pipe
Used for gas pipe isothermal control in cooling. EXV opening is controlled so
that accurate cooling capacity is achieved in each room.
Liquid pipe
Used for sub-cooling control in heating. Actual sub-cooling will be calculated
with liquid pipe & max. heat exchanger temperature among all rooms. EXV
opening is then adjusted to reach the target sub-cooling.
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...