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air conditioner inStallation
general information
These air conditioners are designed only for outdoor
rooftop or ground level installations. The unit has been
tested for capacity and efficiency in accordance with AHRI
210/240 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.
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. Verify the proper refrigerant metering orifice
size is installed for you matched system. See Table 2
(page 11)
√ 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. Verify
coil fins are straight. If necessary, comb fins to remove
flattened or bent fins. 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.
• It is recommended that the outdoor unit not be installed
any closer than 46cm (18 in.) from the outside walls
of the facility and in an area free from overhead
obstructions to ensure unrestricted airflow through the
outdoor unit.
• Consideration should be given to availability of electric
power, service access, noise, and shade.
• Carefully remove the carton and user's manual from
the equipment. Discard the shipping carton.
• See Figure 3 & Table 2 (page 11) for unit dimensions.
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. Full perimeter support is required under the unit.
Support must be made of weather resistant materials
and installed prior to unit installation.
• 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 (see Table 2,
page 11). Reinforce the roof if necessary.
• Secure optional mounting pad or frame to roof using
acceptable mechanical methods per local codes.
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 5 cm
(2") above grade and with adequate drainage.
15.2 cm (6 in.) from
Building or Structure
61 cm (24 in.)
for Service Access
DO NOT
OBSTRUCT
TOP OF UNIT
NOTE: Units require full perimeter clearances.
Installer must maintain 46 cm (18 in.) between two
units or 30.5 cm (12 in.) between single unit and structure.
122 cm
(48 in.)
Figure 2. minimum clearance requirements
30.5 cm or 46 cm
(12 in. or 18 in.)
See Note
30.5 cm or 46 cm
(12 in. or 18 in.)
See Note
5 cm (2 in.)
Mounting Pad
5
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