AAON M2-036 - Manual (Page 57)

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required heat. The indoor fan motor will
energize at the same time as the heaters.
Wiring to the air handling unit must be done
in accordance with local electrical codes and
standards. Check specified electrical rating
and install with proper wire size.
Gas Fired Duct Furnace
Inspection on Arrival
1. Inspect unit upon arrival for any damage
that may have occurred during shipping.
2. Prior to installation locate rating plate and
verify that furnace is equipped for the
available fuel supply and power supply at
point of installation.
Unit Location and Clearances
1. Be sure unit is located with respect to
building construction and other equipment
to provide ready access and clearance to
access panels or doors that must be opened
to permit adjustment and servicing of the
heating module.
2. The heating unit provided is listed for
installation on the positive side of the
circulating air blower only.
3. Do not install unit where it may exposed
to potentially explosive or flammable
vapors.
4. Do not locate unit in areas where
corrosive vapors (such as chlorinated,
halogenated, or acidic) are present in the
atmosphere or can be mixed with
combustion air entering heater.
Outdoor Units
1. Provide at least 6 feet clearance to
roof/side of the unit, where the combustion
air inlet or vent (flue) gas discharge is
located, from walls, parapets or adjacent
buildings or equipment. If equipment is for
replacement and required clearances are not
available, contact unit manufacturer for
recommendations.
2. Unit must be installed with combustion
air openings located at least one (1) foot
above the average snow depth for the
location.
3. Do not locate unit near building
ventilators or exhausts, or areas where
corrosive chemical vapors can be drawn into
combustion air supply.
4. Do not install units in locations where
flue products can be drawn in the adjacent
building openings such as windows, fresh
air intakes, etc.
5. Be sure that vent discharge for flue gases
is directed away from combustion air inlet
and located to prevent flue products from
being drawn into combustion air supply.
Burner performance can be adversely
affected by recirculation of flue products.
Indoor Units
1. Locate unit to insure an adequate supply
of fresh air to replace air used in the
combustion and ventilation process.
2. When locating units, it is important to
consider the exhaust vent piping connected
to the outside atmosphere. Location should
Improper installation, adjustment,
alteration, service, or maintenance
can cause property damage,
personal injury or loss of life.
Installation and service must be
performed by a trained, qualified
installer or service agency. A copy of
this IOM should be kept with the unit.
WARNING