Installation Requirements - Weil-McLain Ultra Manual

-
gas fired water boiler
Install vent/air piping — boiler to terminations
Figure 66
Sidewall termination methods and

installation requirements

Part number 550-100-066/0608
— Boiler Manual
Weil-McLain sidewall
termination plate
(install termination — page 33)
• Install pipe supports every 5 feet
on both the horizontal and vertical
runs.
• Install a hanger support within
6 inches of any upturn in the
piping.
• The Weil-McLain plate
termination must be installed
before piping from the boiler to
the termination.
• Slope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
Weil-McLain 3" PVC
concentric termination
(install termination — page 36)
• Install pipe supports every 5 feet
on both the horizontal and vertical
runs.
• Install a hanger support within
6 inches of any upturn in the
piping.
• The Weil-McLain 3" PVC
concentric termination assembly
must be installed before piping
from the boiler to the termination.
Support the termination at the
wall as shown in the termination
instructions.
• Slope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
• Rotate the concentric termination
Y-fitting about 30° to result in pipe
centers the same as at the boiler.
Sidewall termination with
separate vent and air
pipes
(install termination — page 39)
• Prepare wall penetrations before
installing vent and air piping.
Finish by attaching external
pipe and fittings as shown in the
termination instructions.
• Install pipe supports every 5 feet
on both the horizontal and vertical
runs.
• Install a hanger support within
6 inches of any upturn in the
piping.
• Support vertical runs on the
outside of the building with
brackets as shown in the
termination instructions.
• Slope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
Figure 67
Vertical termination methods and
installation requirements
(continued)
Weil-McLain 3" PVC
concentric termination
(install termination — page 42)
• Install pipe supports every 5 feet
on both the horizontal and vertical
runs.
• Install a hanger support within
6 inches of any upturn in the
piping.
• The Weil-McLain 3" PVC
concentric termination assembly
must be installed before piping
from the boiler to the termination.
Support the termination at
the ceiling and above the roof
as shown in the termination
instructions.
• Slope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
• Use long-radius elbows for air
piping when using 2" or 3" pipe to
reduce pressure drop.
• Rotate the concentric termination
Y-fitting about 30° to result in pipe
centers the same as at the boiler.
Vertical termination with
separate vent and air
pipes
(install termination — page 46)
• Prepare roof penetrations before
installing vent and air piping.
Finish by attaching termination
fittings as shown in termination
instructions.
• Install pipe supports every 5 feet
on both the horizontal and vertical
runs.
• Install a hanger support within
6 inches of any upturn in the
piping.
• Slope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
• Air piping may be offset as
shown at left so termination
can be located as required in the
installation instructions.
• Use long-radius elbows for air
piping when using 2" or 3" pipe to
reduce pressure drop.
49