AP18733 REV. 3.2.17
32
WARNING
Do not use bushing to reduce vent size. Doing so could result in product damage, severe personal injury, or death.
Figure 8 – Transitioning from 3" (7.6 cm) to 2" (5.1 cm) Vent Pipe
Figure 9 – Direct Vent, Roof and Sidewall Vent Terminations
▪ E. VENT TERMINATION
1. Direct Vent, Two Pipe Roof and Sidewall Vent Terminations
Check Primary and Gas Piping
WARNING
All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of ¼" (0.6 cm) per foot back to the appliance to
allow drainage of condensate. When placing support brackets on vent piping, the rst bracket must be within 1 foot (30 cm) of the appliance and
the balance at 4 foot (1.22 m) intervals on the vent pipe. Appliance venting must be readily accessible for visual inspection for the rst three feet
from the appliance.
2. Direct Vent, Optional Horizontal and Vertical Vent Kits
ELBOW
12" Min (30cm)
Intake
Exhaust
Termination Wall
Plate Outside
Maintain 12" (30cm) min.
Clearance above highest
anticipated snow level.
Maximum of 24″(60cm) above
roof
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