Air For Combustion And Ventilation - Crown Boiler BWF Series Installation Instructions Manual

4. Locating the Boiler (continued)
F. Do not install this boiler on carpeting. This may
cause a fire.
G. Do not install this boiler directly on a surface that
may get wet. Raise the boiler on a pad.
H. Protect ignition system components from sources
of water that may spray, drip or rain on them
during installation or service.
I. Install on level floor. For basement installation
provide concrete base if floor is not level or if
water may be encountered on floor around boiler.
8
5

Air for Combustion and Ventilation

NOTICE: If combustion air is being brought
to this boiler using one of the Direct Vent Kits
shown in Table 2.2, requirements in Section 5 do
not apply: See Appendix A for combustion and
ventilation air requirements.
!
WARNING
INSUFFICIENT COMBUSTION AIR SUPPLY may
result in the production and release of deadly
carbon monoxide (CO) into the home.
!
WARNING
PROVIDE ENOUGH AIR to ventilate the boiler
room, and sustain combustion. Ignition failure,
overheating, fire, carbon monoxide, and
spillage of flue gases may result from poor air
supply.
!
WARNING
Do not install this boiler in areas where it
will draw combustion air from areas where
chemicals, such as bleaches, fabric softeners,
paints, cleaners, refrigerants, and cat boxes
are used or stored. Do not draw combustion
air containing large amounts of dust such as
that generated by dry wall construction or
woodworking. Failure to observe this warning
could result in objectionable odors, severe
boiler damage, personal injury or loss of life.
Provide provisions for combustion and ventilation
air in accordance with the section "Air for Combustion
and Ventilation," of the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, or Clause 8.2, 8.3 or 8.4 of Natural
Gas and Propane Installation Code, CAN/CSA B149.1,
or applicable provisions of the local building codes.
In almost all cases, one of the following two
techniques will be best for supplying this boiler with
adequate fresh air:
Indoor Combustion Air – Combustion air is drawn
into the boiler room from other parts of the building
and from outdoors through natural infiltration (cracks
under doors, etc). This method cannot be used in
all cases – see discussion below.
Direct Venting – Combustion air is pulled directly from
outside using the appropriate direct vent kit shown in
Table 2.2 with installer supplied PVC or galvanized air
intake piping. See Appendix A for details on installing
a direct vent system.
109836-01 - 04/20