Weil-McLain ULTRA299-S4 Manual page 6

S 4
®
ERIES
Prepare boiler location
Flooring and foundation
Flooring
1. The Ultra boiler is approved for installation on combustible fl oor-
ing, 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 fl oor, if
any of the following is true:
fl oor can become fl ooded.
the fl oor is dirt, sand, gravel or other loose material.
the boiler mounting area is severely uneven or sloped.
2. The minimum foundation size is:
Ultra-80 to -230: 24 inches wide x 20 inches deep.
Ultra-299/310 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 fl ooding is possible, elevate boiler suffi ciently to prevent water
from reaching boiler.
Residential garage installation
Precautions
1. 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 fl oor as specifi ed 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.
6
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GAS FIRED WATER BOILER
— Boiler Manual
(continued)
Provide air openings to room
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 Figure 1, page 5 .
2. For spaces that do NOT supply this clearance, provide
two openings as shown in Figure 1, page 5 . Each open-
ing must provide 1 square inch free area per 1,000 Btuh
of boiler input.
Air openings — Ultra boiler in same
space with other gas or oil-fi red
appliances
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.
The space must be provided with
combustion/ventilation air openings
correctly sized for all other appliances
located in the same space as the Ultra
boiler.
Reinstall boiler jacket front door after
servicing. The boiler front door must be
securely fastened to the boiler to prevent
boiler from drawing air from inside the
boiler room. This 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.
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).
Part number 550-100-400/0717