Installation and Maintenance Manual

Installation: Piping
GTND-SVX01B-EN 29
rating of 500°F, or 3M #425 aluminum foil tape (or
equivalent).
6. Avoid running vent pipe through unheated spaces.
Wh
en this cannot be avoided, insulate the pipe to
prevent condensation of moisture on the walls of the
pipe.
Figure 27. Unit sizes 30–120: Vertical venting
(Category III)