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•
Make sure the coolant level is
between the MAX and MIN
marks on the reservoir to prevent
air locks. See Engine coolant
check (page 109).
•
Programmable blower operation
begins when the coolant reaches
a certain temperature. In this
mode, ambient temperature has
no effect.
•
In continuous heater operation,
the unit senses the ambient
temperature. If this is above 5°C
(41°F) the programmable fuel fired
heater heater will not activate.
The programmable fuel fired heater
operates independently of the vehicle
heater by heating the engine s
coolant circuit. It is fed from the
vehicle fuel tank. It may also be used
while the vehicle is in motion to help
the vehicle heater warm up the
interior more quickly.
It is possible that when the
programmable fuel fired heater is
activated, exhaust fumes may come
from under the sides of the vehicle.
This is normal.
Principle of operation
Before operation
CAUTION
Turning the blower switch to a
position other than position one
will reduce battery life or even flatten
the battery.
Climate control
Before activating or programming the
heater, prepare the following
settings:
•
•
•
•
Setting the clock time
E71347
Press and hold button A for more
than three seconds, until the time
flashes in the display. Within five
seconds, press buttons B and D to
set the time. To adjust the time
rapidly, press and hold the respective
button.
61
Set the vehicle heater
temperature control to maximum.
Turn the blower switch to position
one.
Switch on the recirculated air
before turning the ignition off. Wait
at least five seconds for the
ventilation system to close the
outside air vents.
Open all the cabin air vents.
A
D
B
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