Room Temperature controller

The HLS34 is specifically designed for individual room

temperature and zone control applications. The HLS

34 controller has built-in RS-485 channel for Modbus

communication. Controllers can be connected to any

supervisory software / system supporting Modbus RTU.

The HLS34 has built-in display and unique touch

sensitive buttons for adjusting the user parameters and

for configuring the controller.

This controller supports 0...10V actuators, 3-point

controlled actuators and thermic actuators.

One of the 0…10Vdc outputs of the controller can be configured for a fan speed control via FCRY3 relay module or it can be used for VAV control.

The controller has DAY and NIGHT operating modes.

When in the NIGHT mode the controller can be

overridden to the DAY mode via a hardware input or

by touching day extension button or via the MODBUS

network. Return to NIGHT mode is automatic after preset delay.

The controller has also a CO2 measurement input for

boosting the ventilation (fan speed) in case of high CO2 level in the room space.