American Water Heater GAS-FIRED COMMERCIAL WATER HEATER - Manual (Page 14)

14
Venting
This water heater has been shipped with a draft diverter for which it was
designed with reference to the horizontal and vertical planes. If removed, the
draft diverter shall be replaced in the same position and secured to the jacket
top by the screws with which it was installed.
This water heater must be connected to a masonry chimney or venting system
approved by local codes or ordinances. The vent connector used to attach
the draft diverter 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-or latest edition), National Fuel Gas Code and
CAN/CGA (B149.1 or B149.2-latest editions), or local code officials for proper
application for your area.
Flue Damper
Refer to Figure 5 and follow these instructions:
1. Remove the damper from the accompanying box shipped within the crate.
2. Locate the collector outlet on top of the water heater. Place the damper
over the collector outlet and rotate as necessary to a position in which the
damper wiring plug can be fully engaged with the connector on the side of
the water heater.
3. Remove clip which holds damper vane closed. If supplied this type of vent
damper will then open by itself.
4. Being certain that the damper vane will travel freely from the “closed” to
“open” position, secure the flue damper to the jacket top with sheet metal
screws. Note: Some dampers require an additional bracket to assure level
installation.
Installation (Venting) continued-
WARNING
The vent system must be installed properly. Failure to properly install the
vent system could result in property damage, personal injury, or death.
CAUTION
Do not turn on electrical power to water heater until flue damper is
installed and water heater is filled with water.
Index