Install Instructions
Table Of Contents
- Applications
- North American Emissions Compliance
- United States
- Canada
- Installation
- Parts Included
- Location Considerations
- Installing the Thermostat Controller
- Wiring
- Setup and Adjustments
- Overview
- Customizing the Home Screen
- Touchscreen Icons
- User Lockout
- Using the USB Port
- Loading the Firmware
- Backing Up the Settings
- Restoring the Settings
- Choosing the Communication Mode (TEC3620-00-000, TEC3621-00-000, TEC3622-00-000, and TEC3623-00-000 Models)
- Configuring the Thermostat Controller
- Installer Configuration Menu
- Screen Reset
- Selecting the Unit Type
- By default, the thermostat controller is configured for 4-pipe fan coil mode. To change to a 2-pipe or Pressure-Dependent VAV mode:
- Configuring the Supply Fan - Fan Coil Only
- Setting the Control Mode
- Setting the Fan Mode - Fan Coil Only
- Configuring the Zone Space or Equipment Size
- Changeover
- Dehumidification Control - Fan Coil Only
- Temperature Setpoints
- Configuring Occupancy
- Selecting Schedule Source
- Scheduling
- Setting the Local Schedule
- Overriding the Occupancy Mode
- Enabling Optimal Start
- Enabling the Motion Sensor (TEC3x21-00-000, TEC3x23-00-000 Models)
- PID/PRAC+ Automatic Control Tuning
- Configurable Binary Inputs
- Aux Control
- Commissioning Mode
- Sensor Priority
- Available Fault Diagnostics
- Menus and Submenus
- Troubleshooting
- Repair Information
- TEC3000 Series Proportional Fan Coil and Individual Zone Thermostat Controllers with Dehumidification Capability (Part 1 of 2)
TEC3000 Series Proportional Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
Capability Installation Instructions
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7. Press to save and to return to the previous screen.
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
to return to the previous screen.
You need to 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/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 support 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
to return to the previous screen.
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.