17Installing the Boiler
2. Mount the wall bracket and the boiler following the
instructions below for your installation type.
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Mounting to a wood studded wall:
Mount the wall bracket using the lag bolts provided.
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Mounting to a concrete wall:
Mount the wall bracket using the anchor bolts provided.
To mount the anchor bolts, drill a 3/8" diameter hole 3-1/2"
deep and inser
t anchor.
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Mounting to a metal studded wall:
Mount the wall bracket using eld supplied toggle bolts
capable of supporting 100 pounds each.
Note
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The wall bracket and the anti-vibration rubber
pad are contained in the L box.
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The product should be installed horizontally.
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All 4 holes of the wall bracket must be inserted
with the anchor bolts to ax the bracket.
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The anti-vibration rubber pad must be located
between the wall and the bracket.
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The anti-vibration rubber pad must be mounted
with its arrow mark (
) facing outward.
CA UTION
It is necessary to leave clearance for service access.
Clean, Debris and Chemical-free Combustion Air
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Do not install the boiler in areas where dust and debris may
accumulate or where hair sprays, spray detergents, chlorine, or
similar chemicals are used.
Ɣ
Do not install the boiler in areas where gasoline or other
ammables are used or stored.
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Ensure that combustible materials are stored away from the
boiler and that hanging laundry or similar items do not obstruct
access to the boiler or its venting.
High Elevation Installations
This unit may be installed at elevations up to 10,100 ft (3,078 m)
for use with natural gas and propane. Refer to “6. Setting the DIP
Switches” for the appropriate altitude setting.
2.3 Mounting the Boiler to the Wall
Ensure the wall for which the boiler is intended to be mounted is
composed of either, cement, brick, block or wooden studs spaced
16 inches apart from center.
Ensure the wall is capable of supporting at least 400 pounds for
the NFB-399C model. (350 pounds for the NFB-301C)
To mount the boiler to the wall:
1. Remove the wall bracket from the L box.
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