Specifications

14
Installation (Venting) continued-
THROUGH THE ROOF VENTING: (VERTICAL VENTING)
Cut the necessary holes through the roof and ceiling and install the vent
connector as shown in Figure 4A. Make sure that the installation meets the local
codes and/or The National Fuel Gas Code ANSI Z223.1 (Latest Edition) or
CGA/CAN B149 Installation Code.
Installations having long vertical runs through attics or long horizontal runs
through unheated crawl spaces may accumulate condensate. In order to prevent
condensate from draining back into the blower, a drain tee and condensate trap
may be installed in the horizontal vent as close as practical to the blower vent
connection (See Figure 4B).
Figure 4A
Figure 4B