Daikin FCQ60B7V1 - Functions of Thermistors

Functional concept ESIE05-04
2–4 Part 2 – Functional Description
3
1
2
4
5
1.2 Functions of Thermistors
Locating the
thermistors
Remark Sensor R3T on indoor coil of FCQ35~60B7V1, FFQ35~60BV1, FBQ35~60B7V1 & FHQ35~60BUV1
is not used when the indoor units are connected to sky-air outdoor units (RR, RQ, RZQ).
Functions of the
thermistors
R1T
R2T
R3T
Ther-
mistor
Location
Wiring
symbol
Mode Function
1 Indoor air
return
R1T Cooling
Q Thermostat control
Q PMV control
Q General frequency control
Heating
Q Thermostat control
Q PMV control
Q General frequency control
2 Indoor
heat
exchanger
R2T Cooling
Q Compressor frequency control (target Te)
Q Inverter current protection control
Q Freeze-up control
Heating
Q Compressor frequency control (target Tc)
Q Inverter current protection control
Q Hot start control
Q Peak cut-off
3 Indoor
heat
exchanger
R3T Heating
Q Peak cut-off