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Instructions for Installation (cont'd)
Combustion Air and Ventilation
Flue Extensions
(cont'd)
There are three optional extension kits available. Any combi-
nation of the three kits can be chosen; however, only one kit
can be used vertically and/or horizontally.
(See Figures 8 & 9.)
4_
/36" min.if withid"
e
thisiarea \
Unless otherwise specified at the time of ordering, a standard
d_ _
extension kit (66001422) is individually packaged and
shipped within the water heater carton.
36" min. within a 360° ra
Any other gravity or natural
if vent is a forced air appli-
appliance outlet vent
ante outlet vent.
POSSIBLE
EXTENSION
COMBINATIONS
[Figure,
]
--
_
/
TAL
Must maintain
_ I'''"
"_
TWO VERTICAL
J
J
KITS
adequate service
_
'_
and maintenance
_
_
i
KITS
NOT OK
accessibility._
_.¢
_o)
\
_
NOT OK
i_!_N i%_
i_
• _
available for vent
.--,on
_U_ °
IFigure"
I
-------
RT, L
OK
0
HORIZONTAL
I----I
Optional
Wire
Grill
KITOK
_
i
i
When the water heater vent cap is low enough to be touched
_A_'T--"_C
A
accidentally, or is accessible to small children, installation of a
protective vent cover is recommended. Some local codes may
L KITAND
require a vent cap cover. Figure 7 shows the optional wire vent
[
I
ONEHORIZONTAL
cap protector available from the water heater manufacturer.
I
I
K/r OK
I Figure8
I
I
I'--I
A wire mesh chain link fence (as shown in Figure 7) may be
used instead of the factory cover. Care should be taken to
I
maintain adequate ventilation around the vent cap. If a chain
_k WARNING
I
At no time can more than one Vertical and/or one
link fence is installed, it must not be used as a storage area for
Horizontal Vent Kit be used.
items that may block proper ventilation.
VERTICAL
(EXTENSION
KIT) HEIGHT
NOt t obeused
It is simple to determine which kit is needed for vertical height.
/
asa storage area
_
Take the total height (to the top of the flue) required and com-
J4_
_-I-
pating that to "F dim." in the chart #1, it can be determined
Failure to have required clearances between vent
piping and combustible material will result in a fire
hazard.
]
WARN, G may
Obstructions
and deteriorated
vent systems
present serious health risk or asphyxiation.
12
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