Auxiliary heater
(Optional equipment)
Check which of the two auxiliary heater control unit
versions is installed in your machine.
The auxiliary heater is used for heating the engine
coolant by a fuel combustion unit while the engine
is stopped. It consists of the fuel tank, fuel pump,
water pump, the timer and the heating unit. The
auxiliary heater facilitates the engine start and
heating the cab in severe cold weather.
The heated coolant is circulated through the engine
block → water pump → auxiliary heater → heater core
→ engine block.
The auxiliary heater timer can be used to make the
necessary settings for operation of the heater.
Button functions
If the display is not lit the timer must be activated.
SHORTPRESS on one of the four buttons, the start
display appears in the display, then continue with
the operation or setting.
All functions can be set and, if necessary, changed
with only 4 buttons.
1
Power on / confirm button
SHORTPRESS button
- if the display shows OFF → Timer On, the start
display appears.
- A selected function is confirmed.
- Inputs are confirmed.
LONGPRESS button : The button must be
pressed for longer than 2 seconds.
- The heater is switched on immediately if On or
OFF appears in the display.
A Display window
B Buttons
1 Power on / confirm button
2 Power off / cancel / exit setting
button
3 Backward button
4 Forward button
Other controls
Operator comfort
139
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