TEC3000 Series Wireless Proportional Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
Capability Installation Instructions
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• High—Fan is continuously on high
• Auto—Follows the behavior set as Fan Mode
• Quiet—Follows the behavior set as Fan Mode, but prevents the fan from ever going above minimum speed
To set the Fan Mode:
1. Press the Menu icon.
2. Press Control Setup.
3. Press General.
4. Press Fan Mode and select On, Auto, or Smart.
5. Press to save and
to return to the previous screen.
Configuring the Zone Space or Equipment Size
By default, the TEC3000 is configured to have a slower temperature response for larger zones with normal-sized
equipment. In installations with small zones and oversized equipment, set the Equipment Size parameter to
Oversized.
To set the Equipment Size parameter:
1. Press the Menu icon.
2. Press Control Setup.
3. Press Tuning.
4. Use the up and down arrows to navigate to Equipment Size.
5. Press Equipment Setup and select Oversized.
6. Press to save and
to return to the previous screen.
Changeover
Pressure-Dependent VAV systems and 2-pipe fan coils require changeover detection in order to switch seasonal
operation between heating and cooling modes. The TEC supports the following methods for changeover:
automatic changeover using an analog sensor (thermistor), automatic changeover using a binary switch, remote
changeover from a BAS, and manual changeover. The unit needs to sense the supply water temperature or the
user manually selects heating or cooling.
For automatic changeover, a supply temperature sensor or switch must be connected to the COS input of the TEC.
Changeover Mode must be set to Auto, and Supply Temp Type must be set for Analog Sensor, Cooling N.C.
(cooling when the switch is closed), or Heating N.C. (heating when the switch is closed). When an analog sensor is
used, the changeover setpoint can be adjusted. The changeover logic applies a 10-degree Fahrenheit differential
to the setpoint. The system switches to cooling mode when the temperature drops below the changeover setpoint
and remains in cooling mode until the measured temperature has risen 10 degrees above the changeover setpoint.
To configure automatic changeover:
1. Press the Menu icon.
2. Press Equipment Setup.
3. Press Changeover.
4. Press Changeover Mode and select Auto.
5. Press Supply Temp Type and select Analog Sensor, Cooling N.C., or Heating N.C.
6. If using an Analog Supply Temp Sensor, press Supply Temp Type and adjust accordingly.
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