Engine Heater SafeStart 500 series

Heaters with special flanges or special fasteners are identified with the DEFA number series 501-2599. Some engines have one of several types of caps instead of a frost plug between the engine and the coolant tank. DEFA manufactures a flange for these heaters which is identical to the original cap. The heater is fastened with bolts. A gasket or an O-ring is used to form the seal. A heater with flat or head-shaped flange, which is fastened with a holder, is also available.

Engine pre-heaters are supplied separately because of specific necessary adaptations to each individual engine and vehicle type.

Use

Normal usage – DEFA engine heaters are designed for “normal usage.” DEFA defines “normal usage” as; 3 connections for 3 hours pr. Twenty-four hours for 150 days (5 months) a year.

Professional use – For use emergency vehicles or other vehicles where the heater is in use continually, yearly controls are necessary. It might be required to install a replacement heater. DEFA AS will not cover the yearly service cost.

NOTE! Pulse power – Some parking facilities use interval (pulse) power timers that turning the power On and Off several times per hour. Using a DEFA engine heater in combination with these timers is NOT considered “Normal use” and claims will be declined.