Holiday Navigator 2003 Owner's Manual page 370

Electrical Systems - Chassis
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
9 • 3 7 0
A/C Operation:
The air conditioning compressor operates in all modes, except vent, floor
and off, to dehumidify the air. Rotate the temperature control switch to set
discharge air temperature.
• Setting the Mode Control Switch to A/C will allow outside air
into the system.
• Setting the Mode Control Switch to MAX A/C will recirculate
inside air. When maximum cold air is desired, select this position.
• Set the Temperature Control Switch to the blue zone.
NOTE: The temperature control switch must be set to the blue zone
for cool air.
NOTE: Activate the A/C system monthly to keep internal components
of the compressor lubricated.
Winter Use:
• De-ice the windshield using the DEFROST mode.
• The system will heat up faster with a slower blower speed until
normal engine operating temperature is obtained.
Summer Use:
• Close all windows and vents preventing hot and humid outside air
from entering the motorhome.
• MAX A/C and HI blower will provide quick cool down.
• Using a lower blower speed will produce cooler air.
Operating Tips and Hints:
• Air intake and discharge temperatures are greatly affected by
ambient temperature and relative humidity.
• A large amount of cooling capacity is used to dehumidify air as
well as cool it. After three to five minutes of A/C compressor
operation, the discharged air temperature should be approximately
30º F cooler than the fresh or recirculated air entering the A/C system.
• The air system on the motorhome must have adequate pressure to
operate the vacuum generator or damper doors will not function.
• At the beginning of the day, activate the compressor with the
engine at idle. This will avoid sudden high speed activation result-
ing in damage from lack of internal compressor lubrication.
• The dash A/C and heater system should be used monthly to keep
the compressor lubricated.
N A V I G A T O R 2 0 0 3