GPG16M Installation Instructions

6
UNIT LOCATION
IMPORTANT NOTE: Remove wood shipping rails prior to installa-
tion of the unit.
ALL INSTALLATIONS:
• For proper flame pattern within the heat exchanger and
proper condensate drainage, the unit must be mounted level.
• The flue outlet hood must be at least 12 inches from any opening
through which flue gases could enter a building, and at least
three feet above any forced air inlet located within ten feet.
The economizer/manual fresh air intake/motorized fresh air
intake and combustion air inlet mounted on the unit are not
affected by this restriction.
• To avoid possible corrosion of the heat exchanger, do not locate
the unit in an area where the outdoor air (i.e. combustion air
for the unit) will be frequently contaminated by compounds
containing chlorine or fluorine. Common sources of such
compounds include swimming pool chemicals and chlorine
bleaches, paint stripper, adhesives, paints, varnishes, sealers,
waxes (which are not yet dried) and solvents used during
construction and remodeling. Various commercial and industrial
processes may also be sources of chlorine/fluorine compounds.
• To avoid possible illness or death of the building occupants, do
NOT locate outside air intake device (economizer, manual fresh
air intake, motorized fresh air intake) too close to an exhaust
outlet, gas vent termination, or plumbing vent outlet. For
specific distances required, consult local codes.
• Allow minimum clearances from the enclosure for fire protection,
proper operation, and service access (see appendix). These
clearances must be permanently maintained.
• The combustion air inlet and flue outlet hoods on the unit must
never be obstructed. If used, do not allow the economizer/manual
fresh air damper/ motorized fresh air damper to become blocked
by snow or debris. In some climates or locations, it may be
necessary to elevate the unit to avoid these problems.
• When the unit is heating, the temperature of the return air
entering the unit must be between 50° F and 100° F.
• Units manufactured on or after May 1, 2017 are not permitted to
be used in Canada for heating of buildings or structures under
construction.
GROUND LEVEL INSTALLATIONS ONLY:
• When the unit is installed on the ground adjacent to the building,
a level concrete (or equal) base is recommended. Prepare a base
that is 3” larger than the package unit footprint and a minimum
of 3” thick.
• The base should also be located where no runoff of water from
higher ground can collect in the unit.
Outside Slab Installation
Rooftop Installation