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Table 1. Minimum Clearances to Combustibles
and for Service.
Installations must comply with
• All the local, state, provincial, and national codes,
laws, regulations and ordinances.
• National Fuel Gas Code, ANSI Z223.1 – The latest
version.
• National Electrical Code.
• A National Standard of Canada CAN/CSA-B149.1
Check before placing the boiler
• Always check the connected components which are
near to the boiler. The components are below.
Water piping position / Venting adapter / Gas supply
piping / Electrical power / Condensate drain hose.
• Inspect area around boiler. Remove any combustible
materials, gasoline and other ammable liquids.
Failure to keep boiler area clear and free of
combustible materials, gasoline and other ammable
liquids and vapors can result in severe personal
injury, death or substantial property damage.
• The boiler which has gas control system components
must be protected from any possible danger during
operation and service.
• If the new boiler replaces an existing appliance,
check and correct system problems, for example:
- Do not install if: System leaks causing oxygen
corrosion or heat exchanger cracks from hard water
deposits.
Provide clearances
• If the boiler was installed in a narrow space or
corner, please ensure that there is sucient
space for service and maintenance access. For
regular maintenance, gas and water lines must be
accessible.
This boiler must be installed upright in the vertical position as
described in this manual.
WARNING
WARNING
CLEARANCES FOR SERVICE ACCESS
• If you do not provide the minimum clearances
shown, it might not be possible to service the
boiler without removing it from the space.
• Space must be provided with combustion /
ventilation air openings correctly sized for
all other appliances located in the same
space as the boiler. The boiler cover must be
securely fastened to prevent it from drawing
air from the boiler room. This is particularly
important if the boiler is in a room with other
appliances. Failure to comply with the above
warnings could result in substantial property
damage, severe personal injury, or death.
SECTION 4 Installation
4.1 Location and Clearances
The FT oor boiler must be installed on a level surface
of sucient strength and follow the clearances listed in
Table 1. Leveling feet are provided to ensure a plumb
installation.
Appliance Surface
Clearance from
Combustibles and Non-
combustible Surfaces
Back 1 in (2.5 cm)
Left Side 1 in (2.5 cm)
Right Side 1 in (2.5 cm)
Front 1 in (2.5 cm)
Top (Alcove Install) 9 in (22.86 cm)
Top (Closet Install)* 22 in (56 cm)
Vent : Concentric, Direct 0 in (0 cm)
Vent : Category IV 3 in (76 cm)
Suggested Serviceability Clearances
Front 18 in (46 cm)
Left Side 6 in (15 cm)
Right Side 6 in (15 cm)
Top 24 in (61 cm)
6”
6”
24”
18”
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