Electric circular duct heaters/preheaters with PTC heating elements for ventilation systems EHC PTC..

The electric circular duct heaters/preheaters with PTC heating elements are intended to heat clean air in the ventilation systems. Also, heaters/preheaters can be used for heating or preheating functions with air-handling units. The heaters/preheaters can be supplied with or without an installed electronic controller, with a pressure and/or flow monitoring system, with a contactor, or produced according to the client's requirements. The heater/preheater cases are produced from aluzinc-coated metal sheets, sealing rubber for a tight connection with the ventilation duct system.

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.

Benefits:

• Self-regulating and safe PTC heating element.
• Small heater/preheater size.
• Low-pressure drop.