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On
Reheat
On
Output
Off
Configuring Automatic Fan Speed
Use the Fan Menu parameter in the Installer
Configuration Menu to set the available fan mode
options. Use the FAN key to select the desired fan
mode option.
High
On
Fan
Speed
Medium
100%
0%
2.5
Figure 20: Low-Med-High-Auto and Low-High-Auto Fan Operation
T60xDFH-4 and T60xDFH-4+PIR Series Thermostat Controllers with Dehumidification and Occupancy
Sensing Capability Installation Instructions
Heating Setpoint
Off
Device
Opened
Device
Closed
(Increments of 1F°/0.5C°)
Figure 19: Heating/Cooling with Reheat,
Four-Pipe Applications
Off
On
Off
Low
Heating
Valve
2.0
0.5
1.5
Temperature Deviation from Setpoint, °F
On/Off, Floating,
or Proportional
Outputs
Cooling Setpoint
Deadband
Device
Closed
Temperature Increase
When selection option (2): Low-Med-High-Auto is
chosen in the Fan Menu parameter, the fan operates
as shown in Figure 20. When selection option
(3): Low-High-Auto is chosen in the Fan Menu
parameter, the fan operates at only the low and high
settings and ignores the medium setting (Figure 20).
This operation applies to the Occupied mode when the
fan is set to Auto.
Cooling
Heating
Setpoint
Setpoint
The fan is off
between the
heating and
cooling setpoints
if the
Auto Fan
parameter is
set to
AS AD
.
2.0F°/1.0C° to
5.0F°/2.5C°
Deadband
Heating Output
Cooling Output
Device
Opened
Off
On
Off
Cooling
Valve
0.5
1.5
2.0
On
2.5
13
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