Daikin SkyAir RZQ-P Series Service Manual page 39

SiUS28-902_B
Heating
When heating, the hot air rises to the top of the room, resulting in the temperature being lower
near the floor where the occupants are. When controlling by suction air thermistor () only, the
unit may therefore be turned off by the thermostat before the lower part of the room reaches the
set temperature. The temperature can be controlled so that the occupied lower part of the room
does not become cold by using the remote controller thermistor to widen the range so that the
suction air temperature is higher than that of the set temperature.
˚F
90
Set temperature
(Ts)
86
82
79
75
72
68
64
60
54
Range in which room temperature
thermistor in remote controller can
be used
 Ex: When heating
Assuming the set temperature in the figure above is 75°F, and the suction air
temperature has changed from 64°F to 82°F (A  D):
(This example also assumes there are several other air conditioners, the system is off, and that
temperature changes even when the thermostat is off.)
Suction air thermistor () is used for temperatures from 64°F to 77°F (A  C).
Room temperature thermistor in remote controller is used for temperatures from 77°F to 82°F
(C  D).
And, assuming suction air temperature has changed from 82°F to 64°F (D  A):
Room temperature thermistor in remote controller is used for temperatures from 82°F to 73°F
(D  B).
Suction air thermistor () is used for temperatures from 73°F to 64°F (B  A).
 For FTQ: Remote sensor (Optional accessory)
Note:
Function
57 60 64 68 72 75 79 82
Range in which suction
air thermistor (∗) can be
used
Outline of Control (Indoor Unit)
86 90 93 ˚F
Suction air temperature (TH1)
Differential
31