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4
Sidewall direct venting
Vent/air termination – sidewall
Figure 4-2 Clearance to Doors and Windows
4'
Figure 4-3 Clearance to Forced Air Inlets
IF LESS THAN 10'
VENT TERMINATION
Sidewall venting commercial products will
CAUTION
result in large exhaust plumes in cold
climates. Consideration should be taken
when locating in proximity to windows,
doors, walkways, etc.
22
4'
36" MIN.
FORCED AIR
INLET
AIR TERMINATION
Installation & Operation Manual
Prepare wall penetrations
1.
Air pipe penetration:
a.
Cut a hole for the air pipe. Size the air pipe hole as
close as desired to the air pipe outside
diameter.
Vent pipe penetration:
a.
Cut a hole for the vent pipe. For either combustible
or noncombustible construction, size the vent pipe
hole per the vent manufacturer's instructions.
2.
Install the vent and air intake piping.
between the pipes and wall with RTV silicone sealant.
3.
Seal all wall cavities.
Termination and fittings
1. The air termination must be oriented at least 12 inches
above grade or snow line as shown in FIG. 4-1, page
21.
2. Maintain the required dimensions of the finished
termination piping as shown in FIG. 4-1, page 21.
3. Do not extend exposed vent pipe outside of the
building more than what is shown in this document.
Condensate could freeze and block vent pipe.
4. Stainless steel terminations are designed to penetrate
walls with a thickness up to 9.25 inches of standard
construction.
Multiple vent/air terminations
1. When terminating multiple Crest boilers terminate
each vent/air connection as described in this manual
(FIG. 4-4).
All vent pipes and air inlets must
WARNING
terminate at the same height to avoid
possibility of severe personal injury,
death, or substantial property damage.
Seal all gaps
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