Cooling system
08
Engine heater
2
3
5
4
Components:
. Engine heater
2. Outlet
3. Inlet
4. Connector with protective cap
5. Appliance plug with protective cap
Cold starting is one of the most important determin-
ing factors regarding the service life of an engine.
Frequent cold starts followed by extended periods of
idling significantly increase wear on the engine. An
engine heater extends the service life of the engine
and the batteries. The heater lowers emissions during
start up and prevents hunting.
The engine heater warms and circulates coolant
through the engine block. It is important that the en-
gine heater is of the right type, is correctly connected
and maintains the engine coolant at the right tem-
perature.
The heater should have its own circulation pump and
be located in a protected area.
The figures on the following two pages show, for each
engine model, connecting points for a separately
mounted heater.
An engine mounted engine heater can be provided
for D5/D7. A separately mounted heater should not
be used.
NOTE! The rating of the engine heater shall be cho-
sen so that the incoming coolant temperature in the
engine does not exceed 70°C (58°F).
NOTE! To avoid galvanic corrosion, it is very impor-
tant that the engine heater is correctly protected.
Please see 6, Protection against galvanic corro-
sion.
Содержание D11 series
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