Ultra Boiler Manual
Part number 550-100-440/0122
6
(continued)
Flooring
e Ultra boiler is approved for installation on combustible ooring,
but must never be installed on carpeting.
Do not install boiler on carpeting even if foundation
is used. Fire can result, causing severe personal injury,
death or substantial property damage.
Foundation
1. Provide a solid foundation pad, at least 2 inches above the oor, if
any of the following is true:
• oor can become ooded.
• the oor is dirt, sand, gravel or other loose material.
• the boiler mounting area is severely uneven or sloped.
2. e minimum foundation size is:
• Ultra-80 to -230: 24 inches wide x 20 inches deep.
• Ultra-299 to -399: 24 inches wide x 23 inches deep.
3. Foundation may be of wood, brick or concrete (minimum 2 inches
thick) construction.
4. If ooding is possible, elevate boiler suciently to prevent water
from reaching boiler.
Precautions
Take the following special precautions when installing the boiler in a
residential garage. If the boiler is located in a residential garage:
• Mount the boiler at a height above the oor as specied in
the National Fuel Gas Code, ANSI Z223.1 NFPA 54 for U. S.
installations, or Natural Gas and Propane Installation
CAN/
CSA
B149.1 and B149.2 for Canadian installations.
• Locate or protect the boiler so it cannot be damaged by a
moving vehicle.
• Ensure that the installation complies with all applicable codes.
Air openings — Ultra boiler alone in boiler
room
1. No air ventilation openings into boiler room are needed
when clearances around Ultra boiler are at least equal
to the SERVICE clearances shown in Figure1,page5.
2. For spaces that do NOT supply this clearance, provide
two openings as shown in Figure1,page5. Each open-
ing must provide 1square inch free area per 1,000 Btuh
of boiler input.
Air openings — Ultra boiler in same space
1. Follow the National Fuel Gas Code (U. S.) or Natural
Gas and Propane Installation
CAN/CSA
B149.1 and
B149.2 (Canada) to size/verify size of the combustion/
ventilation air openings into the space.
2. Size openings only on the basis of the other appliances in
the space. No additional air opening free area is needed
for the Ultra boiler because it takes its combustion air
from outside (direct vent installation).
e space must be provided with combus-
tion/ventilation air openings correctly
sized for all other appliances located in
the same space as the Ultra boiler.
Reinstall boiler jacket front door aer
servicing. e boiler front door must be
securely fastened to the boiler to prevent
boiler from drawing air from inside the
boiler room. is is particularly impor-
tant if the boiler is located in the same
room as other appliances.
Failure to comply with the above warn-
ings could result in severe personal
injury, death or substantial property
damage.