Ultra Boiler Manual
Part number 550-100-440/0122
81
ADVANCED INSTALLATION
(continued)
Multiple air terminations
1. When terminating multiple Ultra boiler air connections, terminate
each air connection as described in this manual.
2. Place wall penetrations to obtain minimum clearances as instructed
in this manual.
3. Place adjacent air inlets for multiple Ultra boilers at least 6 inches
apart.
4. For Canadian installations, provide clearances required by CSA
B149.1 or B149.2 Installation Code.
5. Combustion air (NOT vent piping) can be manifolded as shown
in the Ultra boiler manual.
Prepare wall penetrations
1. Air pipe penetration:
a. Cut a hole for the air pipe. Size the air pipe hole as close as
desired to the air pipe outside diameter.
2. Seal exterior openings thoroughly with exterior caulk.
1. Prepare the air termination elbow (Figure93,page80) by inserting
a bird screen. Bird screens must be purchased separately. See the
parts list at the end of this manual for part numbers.
2. Use metal plates (by installer) at inside and ouside penetrations as
shown in Figure94.
If extending the air pipe out from the wall, install a cou-
pling on each pipe. Mount the piping with the coupling
ush with the outer plate.
Connecting from air termination to boiler
1. Install the terminations as instructed in the following. en pro-
ceed to page82 to complete the air and vent piping between the
termination and the boiler.
Figure 94 Sidewall air inlet installation for direct vent: vertical vent
/ sidewall air
1 Air piping
2 Sidewall plates, by installer
3 Bird screen (air), by installer
4 Air inlet elbow