The HRU controller has been designed for use in industrial and commercial heat recovery applications. With a twin fan controller the mains powered HRU is suitable for use with all ebm-papst EC 0-10V speed controllable fans. Two fans can be independently controlled setting the speed via an individual potentiometer.
Two switched live inputs: Normal/boost speed, Remote on/off.
Alarm output for fan or thermistor fail.
LED's Fans and Thermistors Ok/Fail.
LED's Fan1/ Fan 2 run.
Thermistor connections, supply and extract air temperatures.
Low temperature shut off.
High temperature Activation of summer bypass relay.
Summer bypass control relay change over contacts rated at 230 V ac, 5A.
PIR / CO2 / Humidistat / thermostat for boost select.
BMS remote enable input.
Filter maintenance alarm LED and solid state relay output. DIP selectable period 3/ 6 / 12 months with reset switch and disable.