31
Installing the Water Heater
The water heater is designed for a concentric
venting system, which uses one pipe with two ducts
for combustion air and exhaust air, respectively.
The water heater must be properly vented to
ensure a constant supply of clean intake air and to
ensure that exhaust air is properly removed from
living areas. The vent system must vent directly to
the outside of the building and use outside air for
combustion. When venting the water heater, follow
these guidelines:
●
Do not install the water heater in areas with
contaminated air (containing a high level of dust,
sawdust, sand, flour, aerosols, or any other such
airborne contaminants), as contaminants can
cause operational problems. The warranty does
not cover damage caused by contaminants in the
installation area.
●
Do not use PVC, CPVC, ABS, or any galvanized
material to vent the water heater.
●
Do not combine any vent components or parts
from different manufacturers.
●
Do not lessen the vent diameter.
●
Do not connect the venting system with an
existing vent or chimney.
●
Do not vent in common with the vent pipe of any
other water heater or appliance.
●
For best results, keep the venting system as short
and straight as possible.
●
Locate the water heater as close as possible to the
vent termination.
●
For horizontal runs, slope the horizontal section
upward toward the vent termination at a
rate of
1
/
4
in per foot (2 % slope) when using
a condensate collector. Slope the horizontal
section downward toward the vent termination
when not using a condensate collector. Refer
to the manufacturer’s instructions for using a
condensate collector.
●
Create an airtight seal at the joint in the vent pipe
that leads from the water heater collar to the
vent termination by fully inserting the vent pipe
into the water heater collar. The vent pipe must
be inserted 1.3 in (34 mm) into the water heater
collar. Once fully inserted, mark the vent pipe with
a permanent marker directly above the water
heater collar to observe any displacement during
the installation process. If displaced, then readjust
the vent pipe to ensure full insertion into the
water heater collar.
3.5 Venting the Water Heater
(Indoor Models Only)
DANGER
The vent system will operate with a positive
pressure in the pipe. Exhaust gases must be
piped directly outdoors using the vent materials
and rules outlined in these instructions.
Do not connect vent connectors serving
appliances vented by natural draft into any
portion of mechanical draft systems operating
under positive pressure. Follow the venting
instructions carefully. Failure to do so will result
in substantial property damage, severe personal
injury, or death.
WARNING
●
Improper venting of the water heater can
result in excessive levels of carbon monoxide,
which can lead to severe personal injury or
death.
This water heater must be vented
in accordance with the “Venting of
Equipment
“
section of the latest edition of
the ANSI Z223.1/NFPA 54 Natural Fuel Gas
Code in the USA, as well as all applicable
local building codes and regulations.
Follow all instructions and guidelines when
venting the water heater. Venting should be
performed only by a qualified service agency.
●
Venting system must be sealed gastight
to prevent flue gas spillage and carbon
monoxide emissions, which will result in
severe personal injury or death.
●
The building owner is responsible for keeping
the exhaust and intake terminations free of
snow, ice, or other potential blockages, as well
as scheduling routing maintenance. Blocked
or obstructed vent piping terminations could
result in property damage, severe personal
injury, or death.
