Vector Controls Innovative Controls and Sensors

TRA-F22x-A Modbus

Fan coil controller, 2-/4-pipe with 2 analog/digital inputs, 2 analog and 3 relay outputs, Modbus RTU interface

The TRA-F220-A is a communicating electronic fan coil controller that controls the room temperature.
It supports motorized valves in 2-pipe and 4-pipe fan coil units (heating or cooling). There is an analog or digital
fan available. The digital fan supports 1- or 3 fan speeds, whereas the analog fan runs continuously variable.
Additional inputs can be used for external temperature sensor, room occupancy (motion) detection and more.
The controller offers the operating modes Comfort, Economy and Protection.
The TRA-F221-A includes a Modbus RTU interface and can easily be integrated into a building automation system.

Applications

Fan coil systems
- 2-pipe fan coil (cooling or heating on/off valve)
- 2-pipe fan coil (cooling or heating modulating valve)
- 2-pipe fan coil with 3-position valve (cooling or heating valve)
- 2-pipe fan coil and electric heater
- 4-pipe fan coil (cooling and heating on/off valve)
- 4-pipe fan coil (cooling and heating modulating valve)
Floor heating systems (on/off or 3-position valve)
Chilled ceilings or chilled beams systems (on/off or 3-position valve)

Features

LCD display with backlight
Room temperature control via built-in temperature sensor
2 configurable inputs temperature or digital
2 analog outputs for modulating valve control or analog fan
3 outputs for 1- or 3-speed fan control (automatically or manually) or digital valves (on/off or 3-position valve)
Comfort, Economy and Protection operating mode
Display of current room temperature or temperature set point in °C or °F
Display of outdoor temperature received from Modbus master
Manual or automatic heating / cooling changeover
Select operating mode via operating mode button on the controller
Minimum and maximum limitation of room temperature set point
Floor heating temperature limitation
Key lock function
RTU Modbus slave interface
Reload default settings for commissioning and control parameters
110…230 VAC operating voltage
Flush mount on all 75x75x35mm wall mounting box or larger boxes
Selection of application via parameter
No data loos on power fail

Ordering

Part Name	Part No.	Power supply	Description
TRA-F220-A	40-100274	110...230 VAC/DC	Fan coil controller standalone Note: Minimum mounting cutout mm(inch) horizontal 67(2.64), vertical 61(2.40)
TRA-F221-A	40-100256	110...230 VAC/DC	Fan coil controller with Modbus Note: Minimum mounting cutout mm(inch) horizontal 67(2.64), vertical 61(2.40)