Frame heaters are used for air heating in ventilation and air-conditioning installations.
Series of types of the heaters includes 8 sizes with intake surface from 0,096m2 to 0,36m2.
The heaters consist of:
In heaters a=400mm long 0,5kW and 1,0 kW heating elements are used and in heaters a=600mm only elements with 1,0kW are used.
All sizes of the heaters have the possibility of 3-range thermal power regulation, i.e. 1/3, 2/3 and total power.
Minimal speed of air intake upon the heater may not be lower than 2m/s.