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A.O. Smith BTX-80 SERIES 100 User Manual

A.O. Smith BTX-80 SERIES 100
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24
INSTALLATION OF VENT SYSTEM, SIDEWALL
With the route of the venting system and selection of materials completed,
as discussed in the section of this manual titled PLANNING THE VENT
SYSTEM,thethroughthewallventterminalinplaceandtherstsection
ofpiping,uptorstelbow,installedatthebloweritistimetocompletethe
installation of the venting system for the sidewall installation.
GRADE
*MIN. 12” (30 cm)
ABOVE GRADE OR
*MIN. 12” (30 cm)
ABOVE
ANTICIPATED
SNOW LEVEL
INSTALL A SNORKEL AS SHOWN
HERE ONLY IF NECESSARY TO
ACHIEVE THE 12” MINIMUM
CLEARANCE ABOVE
THE HIGHEST ANTICIPATED
SNOW LEVEL.
SNORKEL
FIGURE 20
It is recommended that the completion of the venting system start
at the blower assembly and run to the coupling on the inside wall
of the vent terminal, Figure18.
The vent systempiping should be supported every 5 feet (1.5m)
ofverticalrunandevery3feet(91cm)ofhorizontalrun.Followvent
pipemanufacturer’sinstructionsforproperjoiningprocedures.
If necessar y to achieve the 12 minimum clearance above
the highest anticipated snow level, install a snorkel as shown
in bottom portion of Figure 20.
NOTE: With the installation of a snorkel it is necessary to
use two 90° elbows thatshall be considered alongwiththe
additional vent pipe when calculating maximum equivalent
feet of venting.
INSTALLATION OF VERTICAL VENT SYSTEM
Aproperflashingor“BOOT”shouldbeusedtosealthepipe
where it exits the roof. The total vent system should not exceed
the equivalent feet of pipe as listed in Table 1.
Provide support for all pipe protruding through the roof. All piping should
be properly secured. The vent system piping should be supported
every5feet(1.5m)ofverticalrunandevery3feet(91cm)of
horizontalrun.Followventpipemanufacturersinstructionsforproper
joining procedures.
FIGURE 21
IMPORTANT
The vent system must terminate so that proper clearances
are maintained as cited in local codes or the current edition
oftheNationalFuelGasCode(ANSIZ223.1)ortheNatural
GasandPropaneInstallationCode(CAN/CSA-B149.1)andas
listed below:
1. VentTerminationmustextend aminimumof12inches (30cm)
aboveroofor12inches(30cm)abovetheanticipatedsnowlevel
to prevent blockage of the vent termination, as shown in Figures
20 and 21.

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A.O. Smith BTX-80 SERIES 100 Specifications

General IconGeneral
BrandA.O. Smith
ModelBTX-80 SERIES 100
CategoryWater Heater
LanguageEnglish

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