Engine Heater SafeStart 700 series

Heaters in the 700 series are divided into two groups:

A. Heaters without thermostat

These heaters are identified with the DEFA number series 701-709 and 758-799. The heaters consist of a heating element and a coolant chamber with intake and outlet connections for different hose dimensions. Heaters 758-799 do not have a thermostat and are suitable for various types of installation methods (hoses, T-connectors, hose clamps, etc.). They are usually installed in a hose on the oil cooler or in a hose for the internal vehicle heater

B. Heaters with a thermostat.

Heaters from number series 710 and 757 consists of heater 715 and different mounting components (hoses, clamps, etc.) It consists of a water chamber with a heating element and an electrical connector housing. It is designed for 5/8” (16mm) water hoses. These heaters are equipped with a thermostat that regulates the coolant temperature and switches off the power supply to the element when the coolant has reached a temperature of 80°C at the intake/outlet of the heater. The thermostat switches the heater back on at 70°C.

Heaters from number series 721 – 734 consists of a coolant chamber and a power connection box. There are two two-phase thermal fuses and a thermostat in the connection box which measures the temperature on a metal plate between the connection box and the coolant chamber. The fuses in the heater prevent the heating element from failing due to overheating.

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.