Configuring The Thermostat Controller; Selecting The Unit Type; Configuring The Supply Fan - Fan Coil Only - Johnson Controls TEC3000 Series Quick Start Manual

Configuring the thermostat controller

Use the Menu icon on the home screen to access and change the basic operating parameters of the thermostat
controller. During normal operation, press the Menu icon once to access the following parameters:
• Fault Status
• Setpoints
• Schedule
Installer configuration menu
The thermostat controller comes from the factory with default settings for all configuration parameters. Before any
outputs turn on, the controller must be configured for the equipment connected. You need to start from the home
screen to perform any of the following tasks.
Screen reset
The current screen returns to the home screen and turns off if the current screen is not touched for 3 minutes.
Touch the screen to turn it on again. To disable the screensaving option, press Display Settings and set Enable
Display Timeout to No.

Selecting the unit type

There are three unit types. They are:
• Four-pipe—This unit type has both heating and cooling coils plus a supply fan. This configuration can also be
used on configurations that are heating or cooling only.
• Two-pipe—This unit type has a single set of pipes that can serve hot or chilled water plus a supply fan. The
Supply Temp Type allows for the connection of an analog sensor or an aquastat to a binary input. Based on
the water temperature or aquastat state, the unit controls heating or cooling.
• VAV—This unit type is designed for a pressure-dependent zone damper and the supply fan outputs are
disabled. The TEC senses the supply air temperature coming from the unit. The Supply Temp Type setting
allows for the connection of an analog sensor or binary duct thermostat. Based on the air temperature or duct
thermostat state, the zone damper controls for heating or cooling. The TEC does not control the unit delivering
the air. The logic needs to be part of another controller.
By default, the thermostat controller is configured for four-pipe fan coil mode.

Configuring the supply fan - fan coil only

On fan coil units (two-pipe or four-pipe), three different types of supply fans are supported. These are single-speed
fans, multi-speed fans (up to three discrete speeds), and VSF using a 0 to 10 V control signal and an optional
binary on/off command. Note that fan control is not available when in VAV mode.
For multi-speed fan control, you can adjust the point when the medium or high speed turns on. The fan speed is
based on the load of the cooling/heating device, and is a percentage between 0 and 100. By default, the Med
Speed On Cmd is 33% and the High Speed On Cmd is 66%. When only two fan speeds are used, you must set the
High Speed On Cmd to 100% to disable the third speed.
For VSF control, the output is configurable for any range between 0 V and 10 V. The parameters are Start Voltage,
Full Speed Voltage, and Minimum Command. Start Voltage is the voltage output at which the fan begins running,
and Full Speed Voltage is the voltage output at which the fan reaches full speed. Minimum Command is the
percentage of the range between the Start Voltage and the Full Speed Voltage. The fan does not go below the
minimum command when the fan is turned on. By default, the Start Voltage is 2 V, the Full Speed Voltage is 10 V,
and the Minimum Command is 20%.
When the variable speed fan is off, the FAN binary output is off and the voltage at the VSF output is 0 V. When the
fan turns on, the FAN binary output turns on and the voltage at the VSF output begins controlling the fan. When the
VSF is configured for reverse acting mode, when the Start Voltage is above Full Speed Voltage, the VSF output is
set to 10 V or the Start Voltage minus 1 V, whichever value is the lesser, when the fan is turned off.
TEC3000 Series Networked and Wireless Proportional Fan Coil and Individual Zone Thermostat Controllers with
• Display Settings
• Setup
• Trend
Dehumidification Capability Quick Start Guide
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