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Instructions for Installation (cont'd)
Locating the New Water
Combustion Air and Ventilation
Heater (cont'd)
When determining the installation location for a power vent
water heater, snow accumulation and drifting should be con-
AWARNING
sidered in areas where applicable.
This water heater must not be installed directly on
carpeting. Carpeting must be protected by a metal
VENTING CLEARANCES
or wood
panel beneath
the appliance
extending
beyond the full width and depth of the appliance
• 0" clearancefor 3" (and opfionzl 2" and 4") PVC, ABS or
by at least 3 inches (76.2mm) in any direction, or if
CPVC Schedule40 vent piping from combustiblesurfaces.
the appliance is installed in an alcove or closet, the
entire floor must be covered by the panel. Failure
• 12" minimum from the ground, 9" ceiling overhangs.
to heed this warning may result in a fire hazard.
Figure 2.
• The Power Vent outlet terminal shall terminate at least 36"
above any forced air inlet into the building located within 10
A WARNING
feet. Figure 3a.
Minimum clearances between the water heater and
combustible or noncombustible
construction are 0"
• The Power Vent outlet terminal shall terminate at least 4 feet
at the sides and rear, 6" at the front, and O" from
below, 4 feet horizontally from or 1 foot above any door, window
the vent pipe. Clearance from the top of the jacket
or gravity air inlet into the building. Figure 3a.
is 14" on most models. Note that a lesser dimension
may be allowed on some models. Refer to the label
• 18" minimum from other natural draft (gravity) direct vent,
on the water
heater adjacent
to the gas control
power vent or power direct vent appliance inlet and/or outlet
valve for all clearances,
vent(s) when directly above or 135° to either side of center
line. Figure 3b.
_
• 24" minimum from any appfiance inlet and/or outlet vents
"
VENTILATION
/
A,. ,J
u
= , ,i/i _
=
_M,N.
• 18° minimum in all directions from any obstruction that may
/
OPENINGS_JI
0" MIN.
TOP VIEW
, I
[
_
I
OF CLOSET
TOPVIEW 0 HIN.
interfere.
Figure
3c.
|_'_. , _
|
_NIT_OLE DOOR
OF CLOSET
/
1_2" H_X,
WITH DOOR
__
• The location selection must provide clearances for servicing
FRONTVIEW
_
_"IN
OF DOOR
.
and proper operation of the water heater. Figure 4.
Figure 1 /
A,_ OUCT
* Vent termination must not be within 4 feet of any items such
]
as gas meters, gas valves or other gas regulating equipment.
A
WARNING
• The venting system must be installed in a manner which
allows inspection oftlie installation of the venting pipes and
A gas water heater cannot operate properly with-
joints as well as periodic inspection after installation as
out the correct
amount
of air for combustion.
Do
not install
in a confined
area such a closet, unless
required byANSI Standards.
you provide air as shown in the "Facts to Consider
About the Location"
section. Never obstruct the
flow of ventilation
air, If you have any doubts or
,
AWARNING
questions at all, call your gas company. Failure to
provide the proper amount of combustion air can
Vent termination
must not be within 4 feet of any
items such as gas meters, gas valves or other gas reg-
result in a fire or explosion and can cause DEATH,
u ating equ pment.
SERIOUS
BODILY
INJURY,
OR
PROPERTY
DAMAGE.
AWARNING
AWARNING
Failure to have required clearances between
water
heater and combustible material will result in a fire
If this water heater will be used in beauty shops,
hazard.
barber shops, cleaning establishments,
or self-ser-
vice
aundr es w th dry clean ng equ pment, it s
imperative that the water heater or water heaters
be installed so that combustion and ventilation
air
be taken
from outside these areas. Refer to the
"Facts to Consider About the Location" section of
this manual
and also the latest
edition
of the
National Fuel Gas Code, ANSI Z223.1, also referred
to as NFPA 54 for specifics provided concerning air
required.
11
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