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HVAC
Roof Air Conditioning and Heat Overview
This article provides a brief overview of the roof air conditioning and heat pump, as well as filter maintenance. Keep your
coach comfortable year around!
On some coach models, grills with filters may be located
behind decorative covers on the ceiling.
1. Remove the vent cover grill from the return air duct
or the grill from the air conditioner ceiling assembly.
2. Remove the filter.
3. Wash, rinse, and dry the filter. If the filter does not
come clean, or is damaged, replace it with a new
filter. Do not substitute other types of filters, as this
may restrict air flow and cause other issues. Do not
operate the air conditioners without filters.
4. Reinstall the filter on the cover, and place it back into
the vent.
5. Repeat the process for each return air vent.
For more information about accessing filters underneath
decorative covers, refer to other Newgle articles (How to
Access and Clean Air Conditioner Filters with... louvered
wood covers, friction, mechanical, or magnetic latch
covers).
Filter Maintenance
Air Conditioning and Heat, Roof
OFF
The blower motor does not operate in this mode.
The fresh air inlet door closes, minimizing outside air
infiltration into the vehicle.
BI-LEVEL
Outside air is drawn into the system and discharged
through the dash louvers, floor, and defrost outlets. The
A/C system operates in Bi-level mode.
FLOOR
Outside air is drawn into the system and discharged
through the floor outlets. In some models, a small amount
of air is directed to the windshield for defrost. The a/c
system does not operate while in floor mode.
MIX
Outside air is drawn into the system and discharged
through the floor and defrost outlets. The A/C system
operates in Mix mode to provide windshield defogging.
DEFROST
Outside air is drawn into the system and discharged
through the defrost outlets. The A/C system operates in
Defrost mode to provide windshield defogging.
For operational safety in the event of the loss of
vacuum, the HVAC system is designed to discharge
air through the defrost vents to provide continuous
windshield defogging.
IMPORTANT
!
Your coach’s air conditioners can be operated using the
Comfort Control thermostat, KIB V-Bus LCD touchscreen,
or the appropriate SilverLeaf screen. For more detailed
information about climate control, refer to the appropriate
product page(s) and associated content in Newgle.
Some roof top air conditioners have the ability to work
as a heat pump when desired to produce heat instead of
cooling. These models are effective at producing heat at
ambient temperatures (above approximately 40 degrees).
If the temperature drops below the threshold, most
controls will revert to the furnace or hydronic heating
system to produce the necessary heat.
Most air conditioning systems have a two minute built-in
time delay, so there may be a slight delay in the operation
of the air conditioner after the thermostat is set.