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3
General venting
Install vent and combustion air piping
The Armor water heater must be vented and
DANGER
⚠
supplied with combustion and ventilation
air as described in this section. Ensure the
vent and air piping and the combustion
air supply comply with these instructions
regarding vent system, air system, and
combustion air quality. See also Section 1
of this manual.
Inspect finished vent and air piping
thoroughly to ensure all are airtight and
comply with the instructions provided and
with all requirements of applicable codes.
Failure to provide a properly installed vent
and air system will cause severe personal
injury or death.
This appliance requires a special venting
WARNING
⚠
system. Use only approved stainless steel,
PVC, CPVC or polypropylene pipe and
fittings listed in Tables 3G, 3H, and 3J for
vent pipe, and fittings. Failure to comply
could result in severe personal injury,
death, or substantial property damage.
DO NOT mix components from different
WARNING
⚠
systems.
causing leakage of flue products into the
living space. Mixing of venting materials
will void the warranty and certification of
the appliance.
Installation must comply with local
NOTICE
requirements and with the National
Fuel Gas Code, ANSI Z223.1 for U.S.
installations or CSA B149.1 for Canadian
installations.
For closet and alcove installations, CPVC,
WARNING
⚠
polypropylene or stainless steel material
MUST BE used in a closet/alcove structure.
Failure to follow this warning could result
in fire, personal injury, or death.
Improper installation of venting systems
CAUTION
⚠
may result in injury or death.
Follow the instructions in Section 1, page
NOTICE
11 of this manual when removing a water
heater from an existing vent system.
Do not connect any other appliance to
WARNING
⚠
the vent pipe or multiple water heaters to
a common vent pipe. Failure to comply
could result in severe personal injury,
death, or substantial property damage.
Vent system must be pitched 1/4"
NOTICE
minimum per foot back to the appliance
to allow drainage of condensate.
(continued)
The vent system could fail,
Installation & Operation Manual
The Armor water heater vent and air piping can be installed
through the roof or through a sidewall. Follow the procedures
in this manual for the method chosen. Refer to the information
in this manual to determine acceptable vent and air piping
length.
You may use any of the vent/air piping methods covered in this
manual. Do not attempt to install the Armor water heater using
any other means.
You must also install air piping from outside to the water heater
air intake adapter unless following the Optional Room Air
instructions in this manual. The resultant installation is direct
vent (sealed combustion).
Air intake/vent connections
1.
Combustion Air Intake Connector (FIG. 3-6) - Used to
provide combustion air directly to the unit from outdoors. A
fitting is provided on the unit for final connection.
Combustion air piping must be supported per guidelines
listed in the National Mechanical Code, Section 305, Table
305.4 or as local codes dictate.
2.
Vent Connector (FIG. 3-7 thru 3-10) - Used to provide a
passageway for conveying combustion gases to the
outside. A transition fitting is provided on the unit for
final connection. Vent piping must be supported per the
National Building Code, Section 305, Table 305.4 or as
local codes dictate.
Figure 3-6 Near Water Heater Air Piping Models 400 - 500
DIR #2000589418 00
15
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