Clearances To Combustibles; Floors With Carpeting; Clearances For Servicing; High Ambient Temperature Installations - American Water Heater Powerflex Installation And Operating Manual

Clearances To Combustibles

Minimum clearances between water heater and
combustibles are 0" at the sides and rear, 5.5" from the
front and 12" from top (standard clearance.) If clearances
stated on the heater differ from standard clearances, install
water heater according to clearances stated on the heater
(see Figure 12).

Floors With Carpeting

This water heater must not be installed directly on
carpeting. Carpeting must be protected by a metal or
wood panel beneath the appliance extending beyond
the full width and depth of the appliance by at least 3" in
every direction, or if the appliance is installed in an alcove
or closet, the entire fl oor must be covered by the panel.
Failure to heed this warning may result in a fi re hazard.

Clearances For Servicing

When installing the heater, consideration must be given to
proper location. Location selected should be as close to
the wall as practicable and as centralized with the water
piping system as possible.
Servicing this appliance, such as changing the anodes,
etc. requires clearances for accesability and replacement
of parts. The anode could be as long as 35" .
Refer to the current edition of the "National Fuel Gas
Code", ANSI Z223.1/NFPA 54 for detailed requirements.
TOP VIEW
OF CLOSET
WITHOUT DOOR
0" MIN.
0" MIN.
Figure 12
WARNING
Breathing Hazard - Carbon Monoxide Gas
• Install water heater in accordance with the
instruction manual and NFPA 54.
• To avoid injury, combustion and ventilation air
must be taken from outdoors.
• Do not place chemical vapor emitting products
near water heater.
Breathing carbon monoxide can cause brain damage or death.
Always read and understand instruction manual.
16
TOP VIEW OF
CLOSET WITH
DOOR
0" MIN.
5.5" MIN.
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HIGH AMBIENT TEMPERATURE INSTALLATIONS

As the room temperature rises, the water heater venting
is exposed to high temperatures from the inside and the
outside. In these situations, attention to the choice of
venting material is necessary. Establishing the ambient
temperatures where the heater and the venting are
installed is very important. Areas that can experience
high ambient environments include closets, alcoves,
areas under staircases, attics (especially in metal roofed
buildings), areas with restricted air movement, rooms with
large solar gains, metal sheds, industrial or commercial
enterprises and venting systems exposed to direct
sunlight. Water heater installations in ambient conditions
hotter than 110°F require the installation of a high ambient
limit switch (kit number 9009024015) and use of CPVC
or polypropylene venting material. Failure to install the
proper vent material will result in a non-compliant
installation and can result in deformation/breakage
of the pipe.
WARNING
Breathing Hazard - Carbon Monoxide Gas
• Flue gases may escape if
vent pipe is deformed,
broken, or not properly
connected.
Breathing carbon monoxide can cause brain damage or death.
Always read and understand instruction manual.
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