19
2009
K
night
Electrical Sy
stems - Chassis - 9
FLOOR
– Use this setting
for maximum heating. Rotate
Temperature Control fully
clockwise into the red scale,
and move Fan Speed clockwise
to the highest fan speed. For reduced heating,
adjust Fan Speed, then Temperature Control
to desired comfort level. In the FLOOR
position air is drawn in and discharged
through the floor louvers and defrost louvers.
The system will also discharge a smaller
amount of air through the dash louvers.
MIX
– Use this setting to heat
the interior and help defrost the
windshield. Adjust Fan Speed
and Temperature Control for
desired level of heating and
defrosting. In the MIX position air is drawn
in and discharged through the floor louvers
and defrost louvers. The system will also
distribute a smaller amount of air through
the dash louvers. The system also operates to
dehumidify the discharged air.
DEFROST
– Use this setting
for maximum defrosting.
Rotate Temperature Control
fully clockwise, and select
the highest Fan Speed. In
DEFROST position air
is drawn in and discharged through the
defrost louvers and foot louvers. The
system will also distribute a smaller
amount of air through the dash louvers. The
A/C compressor operates to dehumidify
discharged air.
TIP
Air will heat up faster with a slower
Fan Speed until normal operating
temperature ranges are reached.
Maintenance
A seasonal inspection should be performed
by a qualified service technician. Some items
to check include:
Inspect the inlet to the evaporator coil
for lint, dirt or other foreign materials
which may have been drawn into the
unit. Any obstruction of the evaporator
coil will impair cooling efficiency and
reduce air flow.
Clean the condenser coil of bugs,
leaves, or other debris.
Inspect compressor drive belt for wear
and proper tension.
INFORMATION
For additional information contact
SCS/Frigette Technical Service at
1-800-275-7524 or Customer Service at
1-800-545-6341.
Operating Tips & Hints
Air intake and discharge temperatures are
greatly affected by ambient temperatures and
relative humidity. A large amount of cooling
capacity is used to dehumidify as well as
cool air. After three to five minutes of A/C
operations, discharged air temperature should
be approximately 20º to 30º F. cooler than
the fresh or recirculated air entering the A/C
system.
At the beginning of the day, activate the
compressor with the engine at idle. This will
avoid sudden high speed activation resulting
in possible damage from lack of internal
compressor lubrication.
Winter Use:
De-ice the windshield using the
DEFROST mode.
Air will heat up faster with a slower
fan speed until normal operating
temperature ranges are reached.
Summer Use:
Close all windows and vents to hot,
humid outside air.
MAX A/C and HI fan provides quick
cool down.
Use a lower fan speed to produce
cooler air.
Temperature Control switch must be
set to the blue zone for cool air.
Heat and Defrost Operation:
Set the Mode Control Switch to the
desired position.
Set the Temperature Control Switch to
the red zone.
Summary of Contents for 2009 Knight
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