Dehumidification Control - Fan Coil Only - Johnson Controls TEC3010 Installation Instructions Manual

7. Press to save and
Additionally, the thermostat controller supports manual changeover. To configure manual changeover:
1. Press the Menu icon.
2. Press Equipment Setup.
3. Press Changeover.
4. Press Changeover Mode and select Heating or Cooling.
5. Press to save and
Ensure that the Supply Temp type is set to Analog Sensor. The Changeover Mode is also exposed to the BAS
through the CGOVR-MODE and can be commanded from the BAS.
On 2-pipe or VAV systems without an automatic changeover, or on 4-pipe systems, you can use COS as a
monitor-only point for reading an analog sensor. By setting the controller in 4-pipe mode, or selecting Heating or
Cooling for Changeover Mode, the controller defaults to monitor-only mode for the COS and exposes the value to
the network as the supply temperature.

Dehumidification Control - Fan Coil Only

The TEC3000 controller supports dehumidification control on fan coil devices under three configurations:
• 4-pipe fan coil
• 4-pipe fan coil with reheat
• 2-pipe fan coil (with changeover in cooling mode) with reheat
For optimal dehumidification performance, a 4-pipe unit with floating/incremental or 0 to 10 V control and a
multi-speed or variable-speed fan is recommended.
Dehumidification operates when the zone humidity increases above the zone humidity setpoint and the controller is
in the Idle or Cooling state. Dehumidification does not operate during heating and stops if the zone temperature
drops below the heating setpoint. When dehumidification is active, the cooling device controls to the humidity
setpoint, and the heating device reheats the zone in order to keep the temperature at the cooling setpoint. While in
the dehumidification mode, a multi-speed or variable-speed fan runs at the lowest possible speed to maximize
condensation and moisture removal across the cooling coil.
To enable dehumidification control:
1. Press the Menu icon.
2. Press Control Setup.
3. Press General.
4. Press Dehum Enable and select Yes.
5. Press to save and
This point is also exposed to the BAS through the point DEHUM-EN.
To adjust the dehumidification setpoint:
1. Press the Menu icon.
2. Press Setpoints.
3. Press Dehumidification and adjust accordingly.
TEC3000 Series Wireless Proportional Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
to return to the previous screen.
to return to the previous screen.
to return to the previous screen.
Capability Installation Instructions
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