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AIR CONDITIONER INSTALLATION
general Information
This 4-5 ton air conditioner is designed only for outdoor
rooftop or ground level installations. The unit has been
tested and certified by AHRI for capacity and efficiency 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.
To achieve optimum performance and minimize equipment
failure, it is recommended that periodic maintenance be
performed on this unit. The ability to properly perform
maintenance on this equipment requires certain
mechanical skills and tools.
before You Install this Unit
√ 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.
√ Always install a unit disconnect switch within sight of
the unit or in accordance with local codes.
√ The indoor section (air handler, furnace, etc) should be
installed before routing the refrigerant tubing. Refer to
the indoor unit's installation instructions for installation
details.
√ All units are securely packed 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 should be filed immediately
with the carrier.
√ Please consult your dealer for maintenance information
and availability of maintenance contracts. Please read
all instructions before installing the unit.
Locating the Air Conditioner
• Survey the job site to determine the best location for
mounting the outdoor unit.
• Overhead obstructions (Figure 2), poorly ventilated
areas, and areas subject to accumulation of debris
should be avoided.
• Sufficient clearance for unobstructed airflow through the
outdoor coil must be maintained in order to achieve rated
performance. See Figure 2 for minimum clearances to
obstructions.
• Consideration should be given to availability of electric
power, service access, noise, and shade.
• See Figure 3 & Table 2 (page 10) for unit dimensions.
Packaging Removal
NOTE: To prevent damage to the tubing connections,
carefully remove the carton and user's manual from the
equipment. Discard the shipping carton.
ground Level
Ground level installations must be located according to
local building codes or ordinances and these requirements:
• Clearances must be in accordance with those shown
in Figure 2.
• A suitable mounting pad (Figure 2) must be provided
and be separate from the building foundation. The
pad must be level and strong enough to support the
unit's weight. The slab height must be a minimum of 2"
(5 cm) above grade and with adequate drainage.
Rooftop
Rooftop installations must be located according to local
building codes or ordinances and these requirements:
• Units may be installed on Class A, B, or C roof covering
material.
• Secure optional mounting pad or frame to roof using
acceptable mechanical methods per local codes.
• The method of mounting should be designed so that it
does not overload roof structures or transmit noise to
the interior of the structure. The roof must be structurally
capable of handling the weight of the unit.
• Full perimeter support is required under the unit. The
support must be built to raise the unit 6" above the
roof, must be made of weather resistant materials,
and installed prior to unit installation.
6" from Building
or Structure
24" for
Service Access
DO NOT
OBSTRUCT
TOP OF UNIT
NOTE: Units require full perimeter clearances.
Installer must maintain 18" between two units
or 12" between single unit and structure.
48"
Figure 2. Clearance Requirements
12" or 18"
See Note
12" or 18"
See Note
2" Mounting Pad
5
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