Gasmaster R Series, Руководство по установке, Страница: 36 / 81

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Sidewall Single Pipe Vent Termination
Sidewall direct vent applications shall be vented as follows:
• Both the inlet and exhaust terminations should be located on the same side of the building and the exhaust
termination should be placed so as to reach 24" minimum above the down-turned intake - to avoid re-circulation. The
elevation of both pipes can be raised in “periscope style” after passing through the wall, then configured as in
Figure
5.58.1 or Figure 5.58.3 , to gain required clearance. Ideally use a 45° elbow on the exhaust termination to launch the
plume up and off the sidewall, for protection of wall. A bird screen is useful to guard against foreign objects.
• Both inlet and exhaust can be piped to the side wall and terminated with a concentric termination as seen in
Figure
5.58.2 . Adhere to normal clearance restrictions as seen in Table 5-1 on page 30.
• Straight pipe exhaust termination is permitted when intake pipe is minimum 24” away from exhaust pipe to avoid
re-circulation. See
Figure 5.58.3
• Two pipe “pancake” vent termination as pictured in
Figure 5.58.4 is permitted. Clearance restrictions from Table 5-
1 on page 30 apply.
Unbalanced Terminations (Figure 5.59.1)
piped directly to the boiler from building side wall. Follow guidelines for each as noted above in roof and wall
termination sections. For example, in the roof termination section it states a straight pipe can be used as a vent
termination at the roof as rain filtration into the boiler is not an issue. For air intake on the side wall, ideally, a 90
elbow is used to prevent rain ingress.
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Figure 5.58.1
Figure 5.58.2
Figure 5.58.3
Figure 5.58.4
Figure 5.59.1
Gasmaster also permits unbalanced flue terminations where exhaust is terminated at the roof of building and intake is