Install Instructions

Table Of Contents
TEC3000 Series Networked and Wireless On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers
with Dehumidification Capability Installation Guide
28
The following Fan Override options are provided for multi-speed fans:
Low—Fan is continuously on low
Medium—Fan is continuously on medium
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 Setup.
3. Press General Control Setup.
4. Press Fan Mode and select On, Auto, or Smart.
5. Press Save and the back arrow
to return to the previous screen.
Configuring the zone space or equipment size - units configured with floating actuators, multi-
speed fans, and variable-speed fans only
With non-binary outputs, the TEC3000 is configured by default 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 Save and the back arrow
to return to the previous screen.
Changeover
Pressure-Dependent VAV systems and two-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, or remote
changeover from a BAS and manual changeover.
For automatic changeover, a supply temperature sensor or switch must be connected to the Changeover Sensor
(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 switch is closed), or Heating N.C. (heating when 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 Setup.
3. Press Equipment Setup.
4. Press Changeover.