Installation
43
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
6.9.2 Approved examples of horizontal and vertical venting
installations
NOTICE:
▶ Place pipe supports every 5 feet (1525 mm) of horizontal and
vertical run, beginning with support near boiler.
▶ The condensate must be disposed of in accordance with applicable
rules.
▶ Periodic cleaning of the vent terminal and air-intake screens is
mandatory.
▶ Avoid locating vent terminals near equipment or building features
which can be subject to degradation from exhaust gases.
▶ If multiple boilers are installed in a row, allow at least 1 foot (305 mm)
clearance between the vent termination of one and the combustion
air intake of the other.
Fig. 32 Horizontal venting system (room air only)
Fig. 33 Horizontal venting system (room air only)
Key to fig. 32 and fig. 33:
[1] Intake
[2] Exhaust
Fig. 34 Horizontal venting system (sealed combustion)
Fig. 35 Horizontal venting system (sealed combustion)
Key to fig. 34 and fig. 35:
[1] Intake, behind exhaust
[2] Exhaust
[3] Wall termination
21
2
6 720 810 590-19.1Wo
6 720 810 590-20.1Wo
2
1
≥ 4"
(102 mm)
2
6 720 810 590-21.1Wo
1
2
1
2
≥ 4"
(102 mm)
≥ 12"
(305 mm)
6 720 810 590 - 22.1Wo
1
2
3
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