Hvac Control Unit - PREVOST X3-45 COACH 2018 Operator's Manual

Controls and Instruments
4-26
Stop / Service Chime (Optional)
Press this switch to enable the stop / service chime. When depressed, the service buttons
illuminate even when the chime circuit is not enabled.
06243
Destination Sign (Optional)
Press the rocker switch to illuminate the destination sign.
06262
Brightness Control
Adjusts the brightness of the dashboard instruments and switches.
06249
Reading Lights Cancel Switch (first rows)
This switch is used to cancels the reading lights in the first two rows. This function is useful to
minimize glare in the windshield during night driving.
06240_1

HVAC CONTROL UNIT

The vehicle is slightly pressurized by the central
HVAC system to prevent dust and moisture from
entering. Air flow and controls divide the vehicle
into two areas: driver's area with defroster and
passengers' area.
Fresh air is fed in each area and has a separate
return air and discharge air duct.
N OTE
1 9 T
To operate the air conditioning system when
stationary, run engine at fast idle. When the
system is running, keep windows and door
closed.
To prevent battery run-down, the central A/C
22296
and heating systems will not operate if the
charging system is not working properly.
When the A/C system is running, park at least 4
feet (1,5 m) from other vehicles or buildings to
allow sufficient air flow through the condenser
core.
Separate
ventilation and air conditioning controls are
PA1627 X3-45 Operator's Manual
driver and passenger heating,