Install Instructions

Installation & Operation Manual
17
3 General venting (continued)
Vent, air piping and termination:
The Armor wall mount 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. This
unit requires Category IV venting. Refer to the information
in this manual to determine acceptable vent and air piping
length.
If the water heater combustion air inlet is
located in a laundry room or pool facility,
for example, these areas will always contain
hazardous contaminants.
To prevent the potential of severe personal
injury or death, check for areas and products
listed in Table 1A, page 10 before installing
the water heater or air inlet piping.
If contaminants are found, you MUST:
• Remove contaminants permanently.
—OR—
• Relocate air inlet and vent terminations
to other areas.
⚠WARNING
⚠WARNING
Air contamination
Pool and laundry products and common household and hobby
products often contain fluorine or chlorine compounds. When
these chemicals pass through the water heater, they can form
strong acids. The acid can eat through the water heater wall,
causing serious damage and presenting a possible threat of flue
gas spillage or appliance water leakage into the building.
Please read the information given in Table 1A, page 10, listing
contaminants and areas likely to contain them. If contaminating
chemicals will be present near the location of the water heater
combustion air inlet, have your installer pipe the water heater
combustion air and vent to another location, per this manual.
Optional room air
Commercial applications utilizing the Armor wall mount
water heater may be installed with a single pipe carrying the
flue products to the outside while using combustion air from
the equipment room. In order to use the room air venting
option the following conditions and considerations must be
followed.
• The unit MUST be installed using Room Air
100157615.
• The equipment room MUST be provided with
properly sized openings to assure adequate
combustion air. Refer to the instructions provided
with the room air kit.
• There will be a noticeable increase in the noise level
during normal operation from the inlet air opening.
• Using the room air kit makes the unit vulnerable to
combustion air contamination from within the
building. Please review Section 1, Prevent
Combustion Air Contamination, to ensure proper
installation.
• Vent system and terminations must comply with the
standard venting instructions set forth in this
manual.
NOTICE
Optional room air is intended for
commercial applications. Combustion
air piping to the outside is recommended
for residential applications.
⚠WARNING
When utilizing the single pipe method,
provisions for combustion and ventilation
air must be in accordance with Air for
Combustion and Ventilation, of the
latest edition of the National Fuel Gas
Code, ANSI Z223.1, in Canada, the latest
edition of CGA Standard B149 Installation
Code for Gas Burning Appliances and
Equipment, or applicable provisions of the
local building codes.
Supports
Vent system must be supported horizontally to prevent
sagging. Methods and intervals for support vary by vent
manufacturer and vent material. Vent support methods and
intervals shall adhere to vent manufacturer's instructions,
where applicable.