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These instructions are a general guide for installing the
MACH 9, 230/240 VAC 50Hz Coleman-Mach roof top
heat pumps. For specific heat pump details, it will be
necessary to refer to ALL printed documents supplied
with this conditioner.
IMPORTANT NOTICE
These instructions are for the use of qualified
individuals specially trained and experienced in
installation of this type equipment and related system
components.
Installation and service personnel are required
by some states to be licensed. PERSONS NOT
QUALIFIED SHALL NOT INSTALL NOR SERVICE
THIS EQUIPMENT.
NOTE:
The words “Shall” or “Must” indicate a
requirement which is essential to satisfactory and safe
product performance. The words “Should” or “May”
indicate a recommendation or advice which is not
essential and not required but which may be useful or
helpful.
WARNING! – SHOCK HAZARD
To prevent the
possibility of severe personal injury or equipment
damage due to electrical shock, always be sure
the electrical power source to the appliance is
disconnected.
CAREFULLY FOLLOW ALL INSTRUCTIONS AND
WARNINGS IN THIS BOOKLET TO AVOID DAMAGE
TO THE EQUIPMENT, PERSONAL INJURY OR FIRE.
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 documentation
accompanies the heat pump.
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 unit. These rooftop
heat pumps have model and serial number identification
in two locations; (1) Rating Plate sticker - may be
viewed by removing the upper unit outer plastic shroud,
(2) Model/Serial number sticker (silver color) - located
on the return air section of the basepan of the roof
top unit. Additionally, if the heat pump is installed, the
Manufacturer and Model Number may be viewed from
the rear at the center of the basepan under the plastic
shroud.
II. HEAT PUMP SIZING
The ability of a heat pump 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 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 such that the capacity of the
air conditioner is exceeded.
As a general rule, air supplied (discharge air) in the
cooling mode will be 15 to 20 degrees F. (8 to 12
degrees C) cooler than the air entering (return air) the
ceiling assembly bottom air grilles.
For example, if the air entering the heat pump is 80
degrees F. (27 degrees C) (return air), the supply air
(discharge air) into the vehicle will be 60 to 65 degrees
F. (15 to 19 degrees C). As long as this temperature
difference (15 to 20 degrees F, 8 to 12 degrees C) 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 windows 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 vehicle insulation, window awnings
and/or window glass tinting should be considered.
III. SELECTING AN INSTALLATION LOCATION
Your Coleman-Mach heat pump has been designed for
use primarily in recreational vehicles.
Is the roof of the vehicle capable of supporting both the
roof top unit and ceiling assembly without additional
support structures? Inspect the interior ceiling mounting
area to 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 heat pumps are installed
at existing roof vent locations. If there is no roof vent
(existing mounting hole), the following placement
locations are recommended.
Motorhomes
– a single unit or the forward of two
units should be mounted within 2.7m 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 and 1.5m from the rear of the camper to achieve
maximum cooling effect.
IV. INSTALLING THE ROOF TOP UNIT
DANGER! SHOCK HAZARD
DISCONNECT ALL
POWER TO THE VEHICLE BEFORE PERFORMING
ANY CUTTING TO THE VEHICLE. CONTACT WITH
HIGH VOLTAGE CAN RESULT IN EQUIPMENT
DAMAGE, PERSONAL INJURY OR DEATH.