Burnham Revolution - I. Pre-Installation; Combustion and Ventilation Air

6
WARNING
If you do not follow these instructions exactly,
a re or explosion may result causing property
damage or personal injury.
DANGER
Do not install boiler where gasoline or other
ammable vapors or liquids, or sources of
hydrocarbons (i.e. bleaches, cleaners, chemicals,
sprays, paint removers, fabric softeners, etc.) are
used or stored.
NOTICE
Due to the low water content of the boiler, mis-
sizing of the boiler with regard to the heating
system load will result in excessive boiler cycling
and accelerated component failure. Burnham
DOES NOT warrant failures caused by mis-sized
boiler applications. DO NOT oversize the boiler to
the system. Modular boiler installations greatly
reduce the likelihood of boiler oversizing.
A. Installation must conform to the requirements of the
authority having jurisdiction. In the absence of such
requirements, installation must conform to the National
Fuel Gas Code, NFPA 54/ANSI Z223.1, and/or
Natural Gas and Propane Installation Code CAN/CSA
B149.1 Installation Codes.
B. Applianceisdesigncertiedforinstallationoncombus-
tibleooring.Donotinstallboileroncarpeting.
C. Provide clearance between boiler jacket and combus-
tiblematerialinaccordancewithlocalreordinance.
Refer to Figure 1 for minimum listed clearance from
combustible material. Recommended service clearance
is 24 inches from left side, right side and front. Service
clearances may be reduced to minimum clearances to
combustible materials.
D. Installonleveloor.Forbasementinstallationprovide
solidbasesuchasconcrete,ifoorisnotlevelorif
watermaybeencounteredonooraroundboiler.Floor
must be able to support weight of boiler, water and all
additional system components.
E. Protect gas ignition system components from water
(dripping, spraying, rain, etc.) during boiler operation
and service (circulator replacement, condensate trap,
control replacement, etc.).
F. Provide combustion and ventilation air in accordance
with applicable provisions of local building codes, or:
I. Pre-Installation
USA - National Fuel Gas Code, NFPA 54/ANSI
Z223.1, Air for Combustion and Ventilation;
Canada - Natural Gas and Propane Installation Code,
CAN/CSA-B149.1.
WARNING
Adequate combustion and ventilation air must
be provided to assure proper combustion.
The following guideline is based on the National Fuel Gas
Code, NFPA 54/ANSI Z223.1.
1.
Determine volume of space (boiler room). Rooms
communicating directly with space (through
openings not furnished with doors) are considered
part of space.
Volume [ft³] = Length [ft] x Width [ft] x Height [ft]
2. Determine Total Input of all appliances in space.
Round result to nearest 1,000 Btu per hour (Btuh).
3. Determine type of space. Divide Volume by Total
Input.
a. If result is greater than or equal to 50 ft³ per
1,000 Btuh, space is considered an unconned
space.
b. If result is less than 50 ft³ per 1,000 Btuh, space
is considered a conned space.
4. Determine building type. A building of unusually
tight construction has the following characteristics:
a. Walls and ceiling exposed to outside atmosphere
have a continuous water vapor retarder with a
rating of 1 perm or less with openings gasketed
and sealed, and;
b. Weather-stripping has been added on openable
windows and doors, and;
c. Caulking or sealants applied in joints around
window and door frames, between sill plates and
oors,betweenwall-ceilingjoints,betweenwall
panels, at plumbing and electrical penetrations,
and at other openings.
5. For boiler located in an unconned space in a
building of other than unusually tight construction,
adequate combustion and ventilation air is normally
providedbyfreshairinltrationthroughcracks
around windows and doors.
NOTICE
Boilers operated with direct vent (sealed
combustion) are exempt from needing provisions
for combustion air from the room, provided
air intake piping is installed per Code and the
instructions in the manual.