Installation Clearances; Rooftop Installations; Safe Refrigerant Handling - Goodman GSZ140311 Installation & Service Reference

INSTALLATION CLEARANCES

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 be placed toward the structure provided the
side away from the structure maintains minimum service
clearance. Corner installations are strongly discouraged.
NOT
RECOMMENDED
B
A AA
C
AA
AA
A
C
Minimum Airflow Clearance
Model Type
Residential
Light Commercial
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. Ensure the foundation is sufficient to
support the unit. A concrete slab raised above ground level
provides a suitable base.
B
B B
AA
C
AA
AA
AA
C
A B C
10" 10" 18"
12" 12" 18"

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.
To avoid possible injury, explosion or death,
practice safe handling of refrigerants.

SAFE REFRIGERANT HANDLING

While these items will not cover every conceivable
situation, they should serve as a useful guide.
OK!
Refrigerants are heavier than air. They can
OK!
"push out" the oxygen in your lungs or in any
enclosed space. To avoid possible difficulty in
breathing or death:
• Never purge refrigerant into an enclosed
room or space. By law, all refrigerants must
be reclaimed.
• If an indoor leak is suspected, thoroughly
OK!
ventilate the area before beginning work.
OK!
OK!
• Liquid refrigerant can be very cold. To
OK!
avoid possible frostbite or blindness, avoid
contact and wear gloves and goggles. If
liquid refrigerant does contact your skin or
eyes, seek medical help immediately.
• Always follow EPA regulations. Never
burn refrigerant, as poisonous gas will be
produced.
AA
20"
24"
To avoid possible explosion:
• Never apply flame or steam to a refrigerant
cylinder. If you must heat a cylinder for
faster charging, partially immerse it in warm
water.
• Never fill a cylinder more than 80% full of
liquid refrigerant.
• Never add anything other than R-22 to an
R-22 cylinder or R-410A to an R-410A cylinder.
The service equipment used must be listed or
certified for the type of refrigerant used.
• Store cylinders in a cool, dry place. Never
use a cylinder as a platform or a roller.
2
WARNING
WARNING
WARNING