Section V: Venting - Bradford White UCG100H270 Installation And Operation Manual

The venting system must be installed properly follow ing all local codes or in the absence of local codes, the
latest edition of the National Fuel Gas Code (ANSI Z223.1- latest edition), or in Canada, The Natural Gas
Installation Code (B149.1-00 latest edition) or CAN/CGA B149.2 Propane Installation Code (Latest Edition).
Failure to properly install the venting system could result in property damage, personal injury, or death.
Carefully inspect the venting system of a replacement w ater heater installation before connecting to the venting
system. All joints in the vent connector must be securely fastened w ith screw s and fit tightly together. Inspect
the venting system for signs of deterioration (rust and perforation) and replace any sections that are not in good
condition.
The chimney must be lined and in good condition. Check to make sure the venting system is properly sized for
the w ater heater. If the venting system w as previously sized for another gas appliance that has been removed,
the venting system may now be too large. Refer to the latest edition of the National Fuel Gas Code (ANSI
Z223.1-latest edition), or in Canada, the Natural Gas and Propane Installation Code (B149.1-00 latest edition)
for the correct sizing of venting systems and common venting w ith another gas appliance. Do not vent this
w ater heater into the venting system of another gas appliance designed to vent under positive pressure.
The w ater heater should be installed as close as practical to the venting system to minimize the vent connector
length required. Refer to local codes for the distance limitations on vent connector lengths. At the completion of
the w ater heater installation, the burner and venting system must be checked for proper operation w ith all other
commonly vented appliances in operation. Check for spillage of flue products around the outside relief opening
of the drafthood after several minutes of operation. The flame from a match should be draw n into the drafthood.
Do not use the w ater heater or connected equipment if spillage is detected until the problem is corrected. Refer
to the latest edition of the National Fuel Gas Code, or in Canada, the Natural Gas and Propane Installation Code
for complete details on the '' Procedure to Be Follow ed to Place Equipment in Operation'' .
This w ater heater has been shipped w ith a draft diverter for w hich it w as designed w ith reference to the horizontal
and vertical planes, its certified category I, per latest ANSI Z 21.10.3-2015.CSA 4.3-2015 revision. Refer to the
latest edition of the National Fuel Gas Code (ANSI Z223.1-latest edition), or in Canada, the Natural Gas and
Propane installation Code (B149.1-00 latest edition). If removed, the draft diverter must be replaced in the same
position and secured to the jacket top by the screw s w ith w hich it w as installed.
This water heater must be connected to a lined masonry chimney or venting system approved by local codes or
ordinances. The vent connector used to attach the draft hood outlet to the chimney or approved vent must be of the same
diameter as the draft diverter outlet or larger. For proper venting in certain installations, a larger vent connector may be
needed. Consult venting tables in ANSI standard (Z223.1- latest edition), National Fuel Gas Code and CAN/CGA (B149.1
or B149.2-latest editions) Natural Gas and Propane Installation Code, or local code officials for proper application for your
area.
Optional Intake Venting
The venting instructions must be followed to avoid restricted combustion or recirculation of flue gases. Such conditions
cause sooting or risks of fire and asphyxiation.
The intake vent system must be properly installed. Failure to properly install the vent system could result in property
damage, personal injury, or death.
Use only the vent terminals provided or factory authorized terminals for venting this water heater.
The water heater requires its own separate intake venting system.
Do not terminate the venting where noise from intake venting will be objectionable. This includes locations close to or
across from windows and doors. Avoid anchoring the intake vent pipes directly to framed walls, floors, or ceilings unless
rubber isolation pipe hangers are used. This prevents any vibrations from being transmitted into the living spaces.
Do not exceed the venting distances or the number of elbows listed in this manual. Exceeding the maximum venting
distances may cause the water heater to malfunction or cause an unsafe condition.
DO NOT operate this water heater until the venting installation is complete and the piping completed. Failure to complete
installation before operation can result in property damage, personal injury, or death.

SECTION V: VENTING

WARNING
WARNING
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