ComfortVu™ BACnet Thermostat Model Standard TB-HM (Line voltage)Carrier Proprietary and Confidential CARRIER CORPORATION ©2020
Installation and Operation Guide All rights reserved
10
Selecting fan speed (for 2 and 3 fan speeds configuration)
Press the [Fan] button to switch between fan speeds.
Notes:
In Auto speed, the active fan speed icon will appear on display.
Medium speed available in 3 speeds configuration.
Auto Speed in AC configurations: the differential parameter
(speed change between stages) is determined by constant
0.7°C (1.4°F)
Auto Speed in FC configurations: the differential parameter is
determined by object AV#59 –DifferentialOnOffFanSpeed
Turning Auto fan ON or OFF (fan on demand)
In 1-speed configuration:
Press the [Fan] button to turn Auto fan ON or OFF.
In 2- and 3-speed configurations:
Press and hold the [Fan] button for 7 seconds to turn Auto fan ON
or OFF.
When ON, the fan will run on demand for cooling or heating.
When OFF, the fan will run continuously.
Note: Auto fan cannot be selected in Fan only mode.
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