Mercedes-Benz TRAVEGO, Operating Instructions Manual

Page: 564 / 581

Practical advice
Scopes of maintenance for the air-conditioning system
Danger.
The condenser is accessible for cleaning
only from the roof. Secure the bus in sta-
tionary position so that it cannot be set
in motion by an unauthorised person. Im-
plement the necessary safeguards to pre-
vent a fall from the roof (safety harness,
scaffold, ladder, etc.).
For normal levels of dirt, blow out
the dust that has deposited in the
fins with compressed air in the direc-
tion of arrow (4.2)
For stubborn dirt, spray into the fins
with a grease-dissolving substance
(cold cleaner), allow it to work and
then spray it off with water. Blow it
dry with compressed air in the direc-
tion of arrow (4.2)
Note:
To prevent deformation of the fins, the
jet of air or water must always be direc-
ted perpendicular (90°) to the condenser
surface.
Then check condenser fans (4.1) for
correct operation: air drawn in the
opposite direction to the arrow (4.2)
Note:
A dirty condenser causes an increase in
pressure in the refrigerant system and a
safety switch response (high pressure).
The cleaning interval depends on the
length of operation and the load to which
the system is subjected.
Carrying out the compressor
maintenance program
M83_00-0117-01
Press and hold A/C enable button (6)
and rocker switch (12) on the control
panel simultaneously with the ignition
starter switch OFF. Switch the igni-
tion starter switch to ON and start
the engine. The LED in Smog button
(7) starts to flash and the LED in but-
ton (6) lights up. The air-conditioning
system is switched on after a delay
of approximately 60 seconds, and the
“Air-conditioning compressor in oper-
ation” symbol appears on the screen.
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TRAVEGO / TRAVEGO M / TRAVEGO L (Euro VI)/07.2014 GB