Volvo VHD Automobile User Manual


 
Heating and Air Conditioning 173
Temperature Control
The bottom slide lever is the Temperature
Control which operates the coolant control
valve. In the leftmost position the flow of
coolant is shut off by the control valve,
which means no heat from the climate unit.
The heat will increase the further to the
right the control is moved.
The temperature control should be used as
a thermostat, together with the fan speed, to
“dial” in the desired temperature when
using the air conditioning. The desired tem-
perature is selected by the combination of
the temperature control setting and the fan
speed. For the ATC version, the tempera-
ture is automatically maintained to where
the control was set. If needed, the control
can be moved to a new setting without
turning the ATC off.
Using the heater on days when the outside
temperature is low but there is direct sun-
light heating through the windows, the air
distribution control should be set in the
center position (air directed to the floor)
and the air vents open, and at the same
time, the temperature control should be set
around the middle position. Warm air is
then distributed so that it is warmest at the
floor and cooler air is distributed via the air
vents on the dash.
When the temperature control is set in one
of the end positions, the temperature at the
floor vents and the air vents is the same.
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