PREVOST H3-45 VIP Owner's Manual page 72

4-26 Controls and Instruments
The HVAC module performs a self- diagnosis
every time it is turned ON. Codes are shown on
displays or flashed on control buttons. Refer to
"Maintenance Manual" for more information on the
diagnostic codes
Heating Mode Indicator
This red LED illuminates when the
system is heating.
Cooling Mode Indicator
This green LED illuminates when the
system is
compressor clutch is engaged).
Fan Speed
The driver's fan has six speeds.
Increase speed by pressing on the
upper portion of the button, decrease
by pressing on the lower portion.
Navigator's Area Auxiliary Unit Fan Speed
Use this switch to increase or
decrease the auxiliary unit fan speed
by pressing on the right or left portion
of the button.
Recirculate
Closes or opens both the driver's and
passenger's section fresh air damper.
A red LED in the top right corner of the button
illuminates when air is recirculated. Use for faster
driver's section heating.
This feature is automatically canceled when
defogging is activated.
Driver's Section Temperature Setting
The temperature displayed on the
driver's side HVAC control unit is the
temperature set point.
cooling (when the
PA-1619 Owner's Manual H3-45 VIP
To increase the temperature set point,
press the "+" sign, to decrease the
temperature set point, press the " - "
sign. Temperature range is between
60°F and 82°F (16°C to 28°C). On the
driver's side only, asking for a
temperature set point above 82°F
(28°C) will keep the coolant valve
open and "FUL" will be displayed.
In case of interior temperature sender
unit failure, the coolant valve will
remain open and three lines "---"will be
displayed.
WARNING
Warm temperatures may cause drowsiness and
affect alertness while driving. Keep the
temperature comfortable but not too high.
Passenger's Section Temperature Setting
The temperature displayed on the
passenger's side HVAC control unit is
the actual
passenger's area.
To increase
temperature
passenger's area, press on the "+" or
the " - " sign. Pressing these buttons
will flash the displayed set point and
the word
Temperature range is between 60°F
and 82°F (16°C to 28°C).
In case of interior temperature sender
unit failure, the coolant valve will
remain open and three lines "---"will be
displayed.
nevertheless control the temperature
by adjusting the temperature set point
above 72°F (22°C) to heat and below
72°F (22° C) to cool.
NOTE
Upon starting of the vehicle, when the ambient
temperature is very cold and so is the inside of
the vehicle, the HVAC control unit will allow a
temperature overshoot up to 3° over the
passenger's area set point to help warming up of
the area because some parts of the vehicle like
the seats and the overhead compartments
accumulate cold.
temperature in the
or decrease the
set point in the
"SET" will highlight.
The driver can