4
GENERAL INFORMATION
This appliance has been tested for capacity and efficiency
in accordance with A.H.R.I. Standards and will provide
many years of safe and dependable comfort, providing
it is properly installed and maintained. Abuse, improper
use, and/or improper maintenance can shorten the life
of the appliance and create unsafe hazards. Please read
all instructions before installing the unit.
Before You Install this Unit
√
This equipment is securely packaged at the time of
shipment and upon arrival should be carefully inspected
for damage prior to installing the equipment at the
job site. Claims for damage (apparent or concealed)
should be filed immediately with the carrier.
√
The cooling load of the area to be conditioned must
be calculated and a system of the proper capacity
selected. It is recommended that the area to be
conditioned be completely insulated and vapor sealed.
√
Check the electrical supply and verify the power
supply is adequate for unit operation. The system
must be wired and provided with circuit protection in
accordance with local building codes. If there is any
question concerning the power supply, contact the
local power company.
√
Verify the air delivery of the air handler is adequate to
handle the static pressure drop of the coil, filter, and
duct work.
Table 1. Minimum Unit Clearances
INSTALLATION CLEARANCES
Left Side ............. 0 Inches
Right Side ........... 0 Inches
Back .................... 0 Inches
Front ...................
†
See Notes
†
NOTES:
Alcove Installations - Allow 24 in. minimum clearance from front of unit to
nearest wall or partition for servicing. Recommended clearance is 36 in.
Closet installations - require a return air grill installed in the door or a
partially louvered door across the opening for proper air circulation. For
clearances 6” or greater, the closet must have an open free area of 235
in
2
minimum. For special clearances between 1” - 5”, requirements are
a louvered door with a minimum of 250 in
2
(1613 cm
2
) free area. A fully
louvered closet door is strongly recommended for both installation types.
REAR
RIGHT
SIDE
LEFT
SIDE
FRONT
Locating the Air Handler
• Survey the job site to determine the best location for
mounting the unit. Consideration should be given to
availability of electric power, service access, and
noise.
• The dimensions of the room or alcove must be able
to accommodate the overall size of the unit and the
installation clearances listed in
. Physical
dimensions for this air handler are shown in
• The air handler should be installed before routing the
refrigerant tubing.
Minimum Clearances
• This appliance must be installed in accordance with
clearances listed in
. The air handler must be
installed with ample clearance for easy access to the
air filter, blower assembly, burner assembly, controls,
and vent connections.
• Sufficient clearance for unobstructed airflow through a
louvered door must be maintained in order to achieve
rated performance.
Operation of Air Handler During
Construction
CAUTION:
Failure to follow these instructions will void the
factory warranty and may significantly reduce
the life or the performance of the air handler,
and/or result in other unsafe conditions. It is
the responsibility of the installing contractor to
insure these provisions are met.
Operating an air handler in a construction environment
can cause the appliance a variety of problems. Proper
use of commercial portable space heating equipment
during construction is recommended. This air handler
may be used during construction if it is not in violation of
any applicable codes and the following criteria are met:
• The installation (including electrical supply, gas supply,
and duct work), must meet all applicable codes and
be permanently installed according to the instructions
supplied with the air handler.
• The air handler must be controlled by a properly installed
thermostat that complies with the current provisions
of the NEC (ANSI/NFPA 70) and all applicable codes
having jurisdiction. Thermostat connections must be
made in accordance with instructions supplied with
the air handler and thermostat.
• The installation must include a properly installed filter
in the return air system with no by-pass air. The filter
must be inspected frequently and replaced when
necessary.
• Return air must be supplied unrestricted and located
such that dust and gases from construction activity are
not introduced into the circulating air system.
• Before occupying the structure: The filter must be
replaced or cleaned, the duct work must be inspected
and cleaned of any construction debris, and the
