Electric circular duct heaters/preheaters for ventilation systems with RS-485 MODBUS, EHC../MB
The electric circular duct heaters/preheaters EHC../MB are intended to be used for heating clean air in the ventilation systems. Also, heaters/preheaters EHC../MB can be used for heating or preheating functions with air-handling units. The heaters/preheaters EHC../MB can be supplied with an installed electronic controller, with a pressure and/or flow monitoring system, with a contactor, or produced according to the client's requirements. It is possible to connect to the BMS system via the RS-485 MODBUS. The heater/preheater EHC../MB cases are produced from aluzinc-coated metal sheets, sealing rubber for a tight connection with the ventilation duct system. The stainless steel tubes of heating elements are used in the heaters/preheaters.
The heater’s standard temperature setpoint is (0...+30). The other temperature setpoints are possible according to a client’s requirements.
The preheater’s standard temperature setpoints are (-10...+20) and (-30...0). The other temperature setpoints are possible according to a client’s requirements.
Preheaters are additionally insulated.
TECHNICAL DATA
- Voltage: 1~230V, 2~400V, 3~400V.
- Output power: 500W..15000W; 18000W..24000W.
- Diameter: 100 mm, 125 mm, 160 mm, 200 mm, 250 mm, 315 mm, 355 mm, 400 mm, 450 mm, 500 mm, 630 mm.
- Degree of protection: IP44.
- Electronic controller types (if equipped): setpoint internal with one duct temperature sensor (model SI), setpoint external with one duct temperature sensor (model SE), control signal 0-10 VDC external (model CE), FC – flow and pressure control, F – flow control, SR – pressure control.
- Pressure monitoring switch range (if equipped): 0-200 Pa (model SR200), 0-500 Pa (model SR500).
