Installation & Operation Manual
20
3
General
venting
Vent, air piping and termination:
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.
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 11 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 11, 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 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 with the appropriate
room air kit (Table 3C).
• 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.
Model Kit
Number
Description
151 - 200
KIT30052
Room Air Kit
286 - 801
KIT30053
Room Air Kit
400 - 801
KIT30054
Room Air Filter Kit
Table 3C Optional Room Air Kit
Installing vent and air piping
Use only cleaners, primers, and solvents that
are approved for the materials which are
joined together.
NOTICE
PVC/CPVC
WARNING
The vent connection to the appliance must
be made with the starter CPVC pipe section
provided with the appliance if PVC/CPVC
vent is to be used. The field provided vent
fittings must be cemented to the CPVC
pipe section using an “All Purpose Cement”
suitable for PVC and CPVC pipe. Use
only the vent materials, primer, and cement
specified in Table 3D to make the vent
connections. Failure to follow this warning
could result in fire, personal injury, or death.
This product has been approved for use with the PVC/CPVC
vent materials listed in Table 3D.
All PVC vent pipes must be glued, properly
supported, and the exhaust must be pitched
a minimum of a 1/4 inch per foot back
to the water heater (to allow drainage of
condensate).
NOTICE