2
INSTALLATION CLEARANCES
This unit is designed for outdoor installations only. Special consid-
eration must be given to location of the condensing unit(s) in re-
gard to structures, obstructions, other units, and any/all other fac-
tors 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 require-
ments 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 in-
stallations are strongly discouraged.
12"
12"
12"
60"
24"
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 trans-
mission, 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.
The selected site should be no greater than 50’ below or 70’ above
the evaporator section. For optimum performance, the minimum
length interconnecting tubing is preferred. When possible mini-
mize 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 consider-
ation 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 absorb-
ing 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. Heat pump 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.
RIGGING
To avoid possible injury or death, all panels must be in position
and secured before lifting this equipment.
Use field-supplied spreader bars when lifting the unit to minimize
the possibility of lifting cable/straps damage. To protect the cabi-
net louvers, use protective material such as plywood behind the
cable/straps. Arrange the straps to form a central suspension
point.
NOTE:
When raising and setting the unit, observe all safety
rules. Remove shipping skid and all protection and lifting material
after the unit is in place.
SAFE REFRIGERANT HANDLING
While these items will not cover every conceivable situation,
they should serve as a useful guide.
To avoid possible injury, explosion or death, practice safe
handling of refrigerants.
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