Blauberg UK Electric Heater for Warming up of Supply air in Heating, Ventilation and air Conditioning Systems Installed in Various Premises (150mm / 0.8 Kw)

Application ‰ For warming up of supply air in heating, ventilation and air conditioning systems installed in various premises. ‰ Compatible with Ø100 to 315 mm round air ducts. „ Design ‰ Galvanized steel case and junction box. ‰ Heating elements made of stainless steel. ‰ Airtight connection with air ducts due to rubber seals. ‰ Several power options for each standard size. ‰ For higher heating capacity several heaters may be installed in series. ‰ Equipped with overheat protection thermostats: – basic protection with automatic restart at +50 0С; – emergency protection with manual restart at +90 0С. „ Mounting ‰ Fixing to round ducts with clamps. ‰ Any mounting position except for the junction box downwards to prevent condensate leakage and short circuit. ‰ Install a filter upstream to the heater to protect heating elements against dirt ingress. ‰ Recommended distance between the heater and other system components must be not less than two connecting diameters for air flow stabilization. ‰ Duct heaters are rated for minimum air flow speed 1.5 m/s and maximum air temperature supplied to the units 40 °С. In case of speed regulation with a speed controller the minimum air speed through the heater must be provided. ‰ For correct and safe heater operation an automatic control and protection system is recommended including the following functions: – regulation of the heating capacity and temperature of the air heated up; – filter clogging control by a differential air pressure sensor; – power cut-off in case of supply fan shutdown or low air flow speed as well as in case of actuating the overheat protection thermostats; – heat removal from the heating elements after ventilation system shutdown.