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WARNING! Improper installation may damage equipment, can create a hazard and will void the warranty.
The use of components not tested in accordance with these units will void the warranty, may make the
equipment in violation of state codes, may create a hazard and may ruin the equipment.
SAFETY WARNING! This appliance is not intended for use by young children or infirm persons unless
they have been adequately supervised by a responsible person to ensure they can use the appliance
safely.
I.
GENERAL INFORMATION
–
OEM
Please make sure all
accompanies the Air Conditioner.
INSTALLER AND/OR DEALER – Please make sure
all documentation is presented to the product
consumer.
INQUIRIES ABOUT THE A/C UNIT – Inquiries to your
AIRXCEL, Inc. representative or to Airxcel, Inc.
pertaining to product installation should contain both
the model and serial numbers of the roof top Air
Conditioner. These rooftop Air Conditioners have
model and serial number identification in two locations:
(1) Rating Plate sticker – may be viewed by looking
through the shroud louvers on the compressor side of
the roof top air conditioning unit. [The rating plate
sticker can be viewed without removing the outer
plastic shroud.] (2) Model/Serial number sticker (silver
color) – located on the return air section of the basepan
of the rooftop air conditioner. If the air conditioner is
installed, the sticker may be viewed by lowering the
ceiling assembly shroud.
II.
AIR CONDITIONER SIZING
The ability of an Air Conditioner in the cooling mode to
cool a vehicle or maintain a consumer desired
temperature is dependent on the heat gain of the
vehicle. The physical size, the amount of window area,
the quality and amount of insulation, the exposure to
sunlight, the number of people using the vehicle and
the outside temperature, may increase the heat gain to
such an extent that the capacity of the air conditioner is
exceeded.
As a general rule, air supplied (discharge air) in the
cooling mode will be 8 to 12 degrees C (15 to 20
degrees F) cooler than the air entering (return air) the
ceiling assembly bottom air grilles.
For example, if the air entering the Air Conditioner is 27
degrees C (80 degrees F) (return air), the supply air
(discharge air) into the vehicle will be 15 to 19 degrees
C (60 to 65 degrees F). As long as this temperature
difference (8 to 12 degrees C, 15 to 20 degrees F) is
being maintained, the unit is operating properly.
Again, give careful consideration to the vehicle heat
gain variables. During extreme outdoor temperatures,
the heat gain of the vehicle may be reduced by:
• Parking the vehicle in a shaded area
• Keeping window and doors closed
• Avoiding the use of heat producing appliances
• Using window shades (blinds and/or curtains)
For a more permanent solution to high heat gain
situations,
additional
awnings and /or glass tinting should be considered.
III.
SELECTING AN INSTALLATION LOCATION
Your Airxcel, Inc. Coleman®-Mach® Air Conditioner
has been designed for use primarily in recreational
vehicles / caravans.
Is the roof capable of supporting both the roof top unit
and ceiling assembly without additional support
structures? Inspect the interior ceiling mounting area to
documentation
vehicle
insulation,
avoid interference with existing structural members
such as: bunks, curtains, tracks or room dividers. The
depth of the ceiling assembly shroud is 51mm. Be sure
to check clearance to doors which must be swung open
(refrigerator – closets – cabinets).
Most of the time, roof mount Air Conditioners are
installed at existing roof vent locations. If there is no
roof vent (existing mounting hole), the following
placement locations are recommended:
Motorhome/Caravans – a single unit or the forward of
two units should be mounted within 2.7m (9 feet) of the
driver compartment.
Travel Trailers or Mini-Homes – a location should be
selected that is near the door slightly forward of the
vehicle center length.
Vans – location should be in the center of the roof (side
to side – front to back).
Truck with Camper – location should be between 1.2
to 1.5m (4 to 5 feet) from the rear of the camper to
achieve maximum cooling effect.
IV.
DANGER! SHOCK HAZARD DISCONNECT ALL
POWER
PERFORMING ANY CUTTING TO THE VEHICLE.
CONTACT WITH HIGH VOLTAGE CAN RESULT
IN EQUIPMENT DAMAGE, PERSONAL INJURY
OR DEATH.
TO PREVENT DAMAGE TO THE WIRING AND
BATTERY, DISCONNECT THE BATTERY CABLE
FROM THE POSITIVE BATTERY TERMINAL
BEFORE PERFORMING ANY CUTTING TO THE
VEHICLE.
Once the location for your Air Conditioner has been
determined (See Section III), a reinforced and framed
roof hole opening must be provided (may use existing
roof vent opening). Before cutting into the vehicle roof,
verify that the cutting action will clear all structural
members and crossbeams. Additionally, the location of
any inner roof plumbing and electrical supplies must be
considered.
A. If a roof vent is already present in the desired
mounting location for the Air Conditioner, the
following steps must be taken.
1. Remove all screws which secure the roof vent to
the vehicle. Remove the vent and any additional
trim materials. Carefully remove all caulking from
around the roof opening to obtain clean exterior
window
roof surface.
2. It may be necessary to seal some of the old roof
vent mounting screw holes which may fall outside
of the Air Conditioner basepan gasket.
3. Examine the roof opening. If the opening is
smaller than the roof opening required for the
ceiling assembly in Figure 1, the opening must be
enlarged.
2
INSTALLING THE ROOF TOP UNIT
TO
THE
VEHICLE
IMPORTANT
BEFORE
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