18 Installing the Boiler
WARNING
●
The boiler is heavy.
Always lift the unit with assistance. Be
careful not to drop the boiler while lifting or handling it to
avoid bodily injury or damage to the unit.
●
Do not
rest the boiler on the bottom end after removing it
from the shipping carton. Doing so may result in excessive
pressure on protruding pipes and resulting in product
damage. If you must put the boiler down, lay it on its back or
put it inside the protective shipping base.
CAUTION
Do not mount the boiler to drywall that has not been
reinforced.
CAUTION
It is necessary to leave clearance for service access.
Clean, Debris and Chemical-free Combustion Air
●
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.
●
Do not install the boiler in areas where gasoline or other
flammables are used or stored.
●
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” on page 60 for the appropriate altitude setting.
2.3 Mounting the Boiler to the Wall
Navien NFC boilers come with an upper mounting bracket that
is pre-drilled at 16 in (400 mm) on center for easy installation on
standard wall studs. If the strength of the wall is insufficient or if
the framing is non-standard or uneven, reinforce the area before
installing the boiler. Avoid installation on common walls as the unit
will make some operational noises while it is running.
To mount the boiler to the wall:
1. Affix the bracket securely to the wall and ensure that it is level
and that it can support the weight of the boiler.
2. Align the grooves on the back of the boiler with the tongues
on the mounting bracket and hang the boiler on the bracket.
When mounted with the mounting bracket, the boiler will
have a
5
/
8
in (16 mm) clearance from the back of the wall.
3. Install two set screws through the bracket at the bottom of the
boiler to secure the boiler on the wall.
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