User Guide

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FIGURE 7.17: VENT CONNECTIONS AND FLUE GAS SAMPLE CAP LOCATION
b. Ifdesired,theterminalscanbeattachedtotheendoftheventand/orintakepipeswitheldsuppliedstainlesssteel
screws so that they can be later removed for cleaning and inspection. If this is done, drill a clearance hole in the
coupling or elbow and a tap hole in the end of the vent/intake pipes to accept these screws.
c. If these terminals are installed on snorkels, assemble the snorkels as shown in Figure 7.6. Brace the vertical run of
piping on the building exterior as required.
4. Installation of Vertical Fitting Terminals (Terminal Option H):
a. See Figure 7.19 for the proper orientation of twin pipe vertical terminals.
b. The coupling is used to secure the rodent screen to the end of the vent pipe.
c. A 180° bend (or two 90° elbows) are installed on the top of the air intake pipe. If two 90° elbows are used, the
rodent screen provided can be installed between them (Figure 7.19). If a 180° bend is used, install the rodent screen
intheopensideofthebend,usingaringmadeofPVCpipe.Ifdesired,theterminationttingscanbeattachedto
theendoftheventand/orintakepipeswitheldsuppliedstainlesssteelscrewssothattheycanbelaterremovedfor
cleaningandinspection.Ifthisisdone,drillaclearanceholeinthesettingsandatapholeintheendofthevent/
intake pipes to accept these screws.
d. Useroofashingsandstormcollarstopreventmoisturefromenteringthebuilding.Sealtheroofashingtotheroof
using generally accepted practice for the type of roof on the installation. Apply RTV to seal the storm collars to the
vent and intake pipes.
5. InstallationofIPEXlowproleventterminal(TerminalOptionB) - See Figure 7.20:
a. Cut two holes in wall to accommodate the size PVC pipe being used. The distance between hole centers is 5.6”.
b. Slide both vent and intake air pipes through the holes, and cement them to the base of the vent termination kit using
a primer and cement listed for use with PVC.
c. Fasten the vent base to the wall using the supplied screws and anchors. The anchors require the drilling of a 3/16”
hole x 1-3/16” deep. Locate the holes using the vent base as a template.
d. Screw the vent cap to the vent base using the supplied screws.
e. Once the vent termination and pipes are secure seal the wall penetrations from the interior using a weather resistant
RTV sealant.
6. InstallationofDiversitechLowProleTerminal(TerminalOptionC)–SeeFigure7.21:
a. Use vent plate as a guide to locate the openings for the vent and air intake pipes, as well as to locate the holes for the
mounting screws.