HLS 44-SE-P is the latest arrival to the HLS 44 multifunctional controller family. As the other tried-and-true members of this family, it is designed for individual room temperature and zone control applications. Unlike the other models, it has a potentiometer for easy setpoint adjustment.
The controller includes the basic control functionalities, such as temperature, VAV, and fan control. It has day and night operating modes. These operating modes can be controlled by an external card switch, occupancy detector and via Modbus.
The controller can be connected to any system that supports Modbus RTU protocol by using the RS-485 connection. The bus is galvanically isolated from the controller's other electronics.
The controller supports 0...10 V controlled actuators and/or thermal actuators, and 0…10 V controlled dampers. The fan coil fan speed can be controlled directly with a 0…10 V output, if the fan coil is equipped with EC motor. In addition, you need a FCRY 3 relay module to control the speed of 3-speed fans. One 0…10 V output (Y3 or Y4) can be configured to control a 6-way valve.
