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UNIT LOCATION
To prevent possible equipment damage, property
damage, personal injury or death, the following
bullet points must be observed when installing
the unit.
IMPORTANT NOTE: Remove wood shipping rails prior to
installation 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.
•
Damper must be in open position when appliance main
burner(s) is operating.
Le registre doit être ouvert lorsque tout brûleur principal de
l'appareil est en état de fonctionnement.
•
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.
WARNING
•
The base should also be located where no runoff of water
from higher ground can collect in the unit.
•
The top of the unit should be completely unobstructed. If
units are to be located under an overhang, there should be a
minimum of 48" clearance and provisions made to deflect the
warm discharge air out from the overhang.
Outside Slab Installation
Rooftop Installations Only:
NOTE: To ensure proper condensate drainage, unit must be
installed in a level position.
•
To avoid possible property damage or personal injury, the roof
must have sufficient structural strength to carry the weight
of the unit(s) and snow or water loads as required by local
codes. Consult a structural engineer to determine the weight
capabilities of the roof.
Rooftop Installation
7
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