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The United States Environmental Protection Agency
(EPA) has issued various regulations regarding the
introduction and disposal of refrigerants. Failure to
follow these regulations may harm the environment
and can lead to the imposition of substantial fines.
Should you have any questions please contact the local
office of the EPA.
If replacing a condensing unit or air handler, the system
must be manufacturer approved and Air Conditioning and
Refrigeration Institute (AHRI) matched. NOTE: Installation
of unmatched systems is strongly discouraged.
Outdoor units are approved for operation above 55°F
in cooling mode. Operation below 55°F in cooling mode
requires the use of an approved low ambient kit.
Damage to the unit caused by operating the unit in a
structure that is not complete (either as part of new
construction or renovation) is not covered under the
warranty.
Refer to the unit Specification Sheet for the recommended
indoor model selection. NOTE: This unit must be used
with a purchased two stage room thermostat with 24 VAC
control circuitry.
NOTE: The maximum altitude shall not exceed 8,000 ft
under normal operating conditions.
Installation Clearances
This unit is designed for outdoor installations only. Special
consideration must be given to location of the condensing
unit(s) in regard to structures, obstructions, other units,
and any/all other factors that may interfere with air
circulation. Where possible, the top of the unit should be
completely unobstructed; however, if vertical conditions
require placement beneath an obstruction there should
be a minimum of 60 inches between the top of the unit
and the obstruction(s). The specified dimensions meet
requirements for air circulation only. Consult all appropriate
regulatory codes prior to determining final clearances.
Another important consideration in selecting a location for
the unit(s) is the angle to obstructions. Either side adjacent
the valves can be placed toward the structure provided the
side away from the structure maintains minimum service
clearance. Corner installations are strongly discouraged.
60"
This unit can be located at ground floor level or on flat
roofs. At ground floor level, the unit must be on a solid,
level foundation that will not shift or settle. To reduce
the possibility of sound transmission, the foundation
slab should not be in contact with or be an integral part
of the building foundation. The foundation slab should
be a minimum of 6" wider than the unit in all directions.
Ensure the foundation is sufficient to support the unit.
A concrete slab raised above ground level provides a
suitable base. For optimum performance, the minimum
length interconnecting tubing is preferred. When possible
minimize the amount of bends and turns.
Rooftop Installations
If it is necessary to install this unit on a roof structure,
ensure the roof structure can support the weight and that
proper consideration is given to the weather-tight integrity
of the roof. Since the unit can vibrate during operation,
sound vibration transmission should be considered when
installing the unit. Vibration absorbing pads or springs can
be installed between the condensing unit legs or frame and
the roof mounting assembly to reduce noise vibration.
NOTE: These units require special location consideration
in areas of heavy snow accumulation and/or areas with
prolonged continuous subfreezing temperatures. These
unit bases have cutouts under the outdoor coil that permit
drainage of frost accumulation. Situate the unit to permit
free unobstructed drainage of the defrost water and ice. A
minimum 3" clearance under the outdoor coil is required
in the milder climates. In more severe weather locations,
it is recommended that the unit be elevated to allow
unobstructed drainage and air flow. In areas of heavy snow
the unit needs to be elevated above the average yearly
snow accumulation.
2
24"
24"
24"
24"
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