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Engine heater - Mercedes-Benz - 230V - 411473 - DEFA
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Description
Engine heater 400 series from DEFA for vans
Engine heater 400 series supplied by DEFA is designed for liquid and air cooled engines and low or high refrigerant volume. Our range includes heaters for passenger cars, vans, trucks, agricultural tractors and stationary engines. There are nine series of heaters differentiated depending on the way of their installation. The engine heater 400 series part number 411473 is installed in the engine cooling line of Mercedes-Benz vans.
DEFA engine heater heats the engine efficiently and effectively. Most heaters are mounted in such a way that the heating element is in direct contact with the coolant and ensures its slow circulation.
Product is protected by a fusible link that burns out when the temperature rises excessively. Burnout can be caused by:
- Coolant level too low (heating element is in contact with air).
- Air pocket all around the heating element (the heating element comes in contact with the air).
- Dirty or contaminated coolant creates an insulating layer (scale) around the heating element, blocking heat conduction ‚A.
The 400 series motor heater can heat the coolant to about 50°C above the outside temperature, depending on the installation location heaters and cooling system capacity.
The optimum operating time depends on the outside temperature. After 3 hours at -17°C, the system reaches thermal equilibrium, which means that the energy supplied after that time is only for temperature maintenance. Additional heat is emitted to the outside. The DEFA motor heater can remain connected to the power source without the risk of destroying the heating element, however this will only result in unnecessary electricity consumption.
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