Install Instructions
22
Venting continued-
It is acceptable to install a 90º elbow on IPEX concentric vent terminations use
with this power direct vent water heater (see Figure 5b). A short length of
appropriate diameter vent pipe should be used to transition from the vent
terminal to the 90º elbow. Approved venting materials along with primers and
cements are listed at the beginning of this venting section. When the 90º elbow
is used the equivalent length of the elbow and short length of vent pipe must be
factored into the total vent/air intake pipe determinations (see Tables 4 and 5
for appropriate vent connector lengths).
Figure 5b
(B) DIMENSION
MIN
MAX
12 IN (30.5 CM)
44 IN (111.8 CM)
Through The Roof Venting (Vertical Venting Standard Terminals):
Cut the necessary holes through the roof and ceiling and install the vent
connector as shown in Figure 6. 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 (latest edition).