Fan Settings; Emergency Heat - Daikin TSTATD4271C Installation And Maintenance Manual

Fan Settings

Table 19: Fan Settings Command Levels
● Fan – Auto
● Occupied Fan State
● ON
● Auto
● Fan Purge – OFF
● Preoccupancy Purge Time
Using the Fan Settings Functions
The fan may be set to run continuously during Heat, Cool,
Auto, and Occupied modes. A Preoccupancy Fan Purge
schedule may also be set.
● Fan – ON
● Fan – Auto
Press to turn fan ON to run continuously or Auto for fan to run
only with heating or cooling.
● Occupied Fan State
Press to turn fan ON to run continuously during Occupied
mode or Auto for fan to run only with heating or cooling.
● Fan Purge - OFF
Press to turn on Preoccupancy Fan Purge. This feature allows
the fan to run for a preset amount of time before Occupied 1
begins.
● Preoccupancy Purge Time
The Preoccupancy Fan Purge timer may be set from 15
minutes to 3 hours in 15 minute increments.
IM 1227 • MODELS DC THERMOSTATS

Emergency Heat

The Emergency Heat function is only available if your
thermostat is set to control a Heat Pump.
► To initiate the Emergency Heat feature, Press the Emergency
Heat button. During Emergency Heat operation the thermostat
will turn on the fan and auxiliary stages of heat when there is
►
(Auto)
a demand for heat. The 1st stage of heating and all stages of
cooling will be unavailable. To exit Emergency Heat, press the
►
Emergency Heat button.

Figure 54: Emergency Heat Confirmation Display
►
►
(15 mins)

►
►
(ON)
►
►
(15 mins)
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