12 EX17DT and EX22DT Installation and Operation Manual
Air surrounding the venting, and vent
termination(s) is used for combustion and must
be free of any compounds that cause corrosion
of internal components. These include corrosive
compounds that are found in aerosol sprays,
detergents, bleaches, cleaning solvents, oil
based paints/ varnishes, and refrigerants.
The furnace, venting, and vent termination(s)
should not be installed in any areas where the
air may contain these corrosive compounds. If it
is necessary for a furnace to be located in
areas that may contain corrosive compounds,
the following instructions are strongly
recommended.
IMPORTANT CONSIDERATIONS:
DO NOT install in areas where air for
combustion might be contaminated with
chemicals.
Before installation, consider where air has
the ability to travel within the building to the
furnace.
Terminate the unit as far away as possible
from any air inlet vents. Corrosive fumes
may be released through these vents
when air is not being brought in through
them.
Chemicals that are corrosive in nature
should not be stored or used near the
furnace or vent termination.
Damage and repair due to corrosive
compounds in the air is not covered by
warranty.
Pipe Wrenches (x2)
Adjustable Pliers
Screwdrivers (x2)
Wire Cutters
Gloves
Safety Glasses
Level
Soap or Gas Leak Detector Solution
Approved Venting
Teflon Tape (Recommended) or Pipe
Compound
The following field-supplied items may be
needed:
Gas Manometer
Hammer Drill with Concrete Bits
Saw
Threading Machine with Heads and Oiler
Core Drill with Diamond Head
Torch Set
Steel Pipe Cutter
Concrete Wall Anchors
Optional Pipe Cover
Single Gang Electrical Box
Wire Nuts
4.2.2 Items Needed
(Field-Supplied)
When selecting an installation location, you
must ensure that all direct vent furnace and
venting clearances will be met and that the vent
length will be within required limits. You must
also consider the installation environment.
Requirements for the gas line and electrical
connection can be found in their respective
installation sections in this manual.
4.3 Choose an
Installation Location
4.3.1 Environment