BAKL6U022AA
Edition: 28.02.2017
Page: 6/9
3.1.
Operation panel / function of the keys
You operate the air conditioning unit via the original WABCO – control unit
(see original
WABCO- operation instructions „ATC-CAN„)
For operation the driver can use 3 rotary potentiometer and maximal 5 keys. Depending on the
serial-model modification of the bus different control desks are used.
In order to release the driver from extensive adjustments for the passenger’s compartment he is
able to switch off the complete control for this area. All other functions on the control desk serve
for the individual adjustments of the driver’s cabin.
3.1.1. Flap for windshield/floor
The flap for windshield respectively floor are controlled according to the symbolism.
Arrow down:
flap for floor
The whole air is lead to the floor.
Arrow down/up:
mid-position
Air circulation is split up between floor and windshield.
Arrow up:
flap for windshield The whole air is lead to the windshield
Symbol windshield: defrost
Water valve completely opened; air to windshield; max-
imal blower speed.
The conversion is realized via characteristic curves which also facilitate intermediate positions.
3.1.2. Desired value of front box temperature
The blowout temperature of the front box can be set between 14 and 60º C.
3.1.3. Blower speed
The potentiometer serves for setting speed of the front box. The air velocity is increased by turn-
ing the potentiometer clockwise.
3.1.4. Smog
With the smog key you can stop supply of fresh air for the whole bus. If smog function is activated
the key is illuminated. If this function is activated, the openings in the roof as well as the fresh air
flaps are closed for a certain time prescribed by the manufacturer.
Heater pas-
sengers
compart-
ment
Driver’s seat climate
Frontbox temperature
Smog
Flap windshield / floor
Reheat
Additional heater
Blower speed
