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10
Installation (continued)-
VENTING
Place the draft diverter over the flue opening at the top of the water heater by
inserting the tips of the draft diverter legs into the four (4) holes provided in the
water heater top. On some models, line up the holes in the draft diverter legs
with the holes provided on top of the water heater. Secure the draft diverter to
the water heater with sheet metal screw. (See Figure 5)
Vent piping must be attached to the draft diverter outlet to connect the water
heater to the gas vent or chimney. The following minimum clearances must be
followed when connecting vent piping:
a) The vent connector must be the same nominal size as the draft
diverter.
b) The vent connector should not exceed 15 feet (4.5m) in length (for
power vent appliances, refer to supplemental instructions), must not
project into the chimney beyond the inner wall and should contain the
least possible number of bends.
c) All horizontal runs should have a minimum rise of ¼ inch(2.1cm/m) per
foot of run.
d) Joints of vent connectors shall be securely fastened by sheet metal
screws or other approved methods.
e) All single wall vent connectors must be at least 6” (15cm) from
combustible surfaces.
f) Vent connectors made of single-wall metal pipe shall not pass
through any attic, inside wall, concealed space, or any floor. When a
single-wall metal pipe passes through an exterior wall constructed of
combustible material, it shall be guarded at the point of passage by a
ventilated metal thimble at least 4” (10cm) larger in diameter than the
connector. (Consult National Fuel Gas Code, ANSI Z223.1and/or
CAN/CGA B149, Installation Codes).
A separate vent for each application is strongly recommended. If combined
venting of multiple appliances is necessary or if an unusual situation arises,
consult the National Fuel Gas Code, ANSI Z223.1and/or CAN/CGA B149,
Installation Codes (latest editions), for sizing and installation information.
WARNING
The vent system must be installed properly. Failure to properly install the
vent system could result in property damage, personal injury, or death.
INTERNET VERSION FOR REFERENCE ONLY