User Guide

Part number 550-100-400/0717
92
Install vent/air piping — boiler to terminations (cont.)
&IGURE 3IDEWALLTERMINATIONMETHODSAND
INSTALLATIONREQUIREMENTS
7EIL-C,AINSIDEWALL
TERMINATIONPLATE
(install termination — page 70 )
sInstall pipe supports every 5 feet
on both the horizontal and vertical
runs.
sInstall a hanger support within
6 inches of any upturn in the
piping.
sThe Weil-McLain plate
termination must be installed
before piping from the boiler to
the termination.
sSlope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
7EIL-C,AINvORv
CONCENTRICTERMINATION
(install termination — page 72)
sInstall pipe supports every 5 feet
on both the horizontal and vertical
runs.
sInstall a hanger support within
6 inches of any upturn in the
piping.
sThe 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.
sSlope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
sRotate the concentric termination
Y-fi tting about 30° to result in pipe
centers the same as at the boiler.
3IDEWALLTERMINATIONWITH
SEPARATEVENTANDAIR
PIPES
(install termination — page 20)
sPrepare wall penetrations before
installing vent and air piping.
Finish by attaching external
pipe and fi ttings as shown in the
termination instructions.
sInstall pipe supports every 5 feet
on both the horizontal and vertical
runs.
sInstall a hanger support within
6 inches of any upturn in the
piping.
sSupport vertical runs on the
outside of the building with
brackets as shown in the
termination instructions.
sSlope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
&IGURE 6ERTICALTERMINATIONMETHODSAND
INSTALLATIONREQUIREMENTS
6CX
"*3
7EIL-C,AINvORv
CONCENTRICTERMINATION
(install termination — page 75)
sInstall pipe supports every 5 feet
on both the horizontal and vertical
runs.
sInstall a hanger support within
6 inches of any upturn in the
piping.
sThe 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.
sSlope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
sUse long-radius elbows for air
piping when using 2” or 3” pipe to
reduce pressure drop.
sRotate the concentric termination
Y-fi tting about 30° to result in pipe
centers the same as at the boiler.
6ERTICALTERMINATIONWITH
SEPARATEVENTANDAIR
PIPES
(install termination — page 23)
sPrepare roof penetrations before
installing vent and air piping.
Finish by attaching termination
fi ttings as shown in termination
instructions.
sInstall pipe supports every 5 feet
on both the horizontal and vertical
runs.
sInstall a hanger support within
6 inches of any upturn in the
piping.
sSlope horizontal piping downward
toward the boiler at least 1/4 inch
per foot.
sAir piping may be offset as
shown at left so termination
can be located as required in the
installation instructions.
sUse long-radius elbows for air
piping when using 2” or 3” pipe to
reduce pressure drop.
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SERIES 4 GAS-FIRED WATER BOILER — Boiler Manual