Weil-McLain SlimFit Manual page 47

SlimFit
™
commercial condensing gas
DIRECT VENT — Vertical
Figure 45
Termination location — multiple boilers — vertical vent/sidewall air
VENT PIPING (through roof)
Multiple boiler applications
apart.
Figure 46
Sidewall air termination assembly —
vertical vent with sidewall air
1 Air piping — must extend
through wall enough for
complete engagement of
the air termination elbow
2 Air termination elbow —
must be down-turned
90-degree elbow
Part number 550-100-116/0713
— Space vents minimum 6 inches apart. Space air terminations minimum 6 inches
3 Sidewall termination
plates (hole must be just
larger than the air pipe
diameter)
4 Bird screen, by installer
-
fired water boiler
(continued)
Figure 47
Direct venting — install tee on air outlet or provide means
to disassemble the air piping to allow access to the inlet
air filter
— Boiler Manual
AIR PIPING (sidewall)
1 Vent/air pipe manufacturer's
SlimFit Vent/Air Adapter,
8-inch outlet
2 Vent/air pipe manufacturer's
tee, 8-inch — orient the tee
so the cover will be on the
same side as the boiler heat
exchanger cleanout cover
3 Air pipe connection, 8-inch
— add vent/air pipe manufac-
turer's reducer if using 6-inch
air piping
4 Vent/air pipe manufacturer's
cover, 8-inch
5 Vent piping (a vent/air pipe
manufacturer's SlimFit Vent/
Air Adapter must be installed
at the boiler vent connection)
Use only the vent/air piping ma-
terials listed in Figure 28, page 31.
47