Direct Exhaust; Direct Vent - Weil-McLain SlimFit 2 Series Manual

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SlimFit
COMMERCIAL CONDENSING GAS
Prepare boiler location
Flooring and foundation
Flooring
1. The SlimFit boiler is approved for installation on combustible
flooring, but must never be installed on carpeting.
Do not install boiler on carpeting even if founda-
tion is used. Fire can result, causing severe personal
injury, death or substantial property damage.
Foundation
1. The boiler mounting surface must be level and suitable for
the load.
2. Provide a solid foundation pad, at least 2 inches above the
floor, if any of the following is true:
floor can become flooded.
the floor is dirt, sand, gravel or other loose material.
the boiler mounting area is severely uneven or sloped.
3. The minimum foundation size is:
48 inches wide x 20 inches deep.
4. Foundation may be of wood, brick or concrete (minimum 2
inches thick) construction.
5. If flooding is possible, elevate boiler sufficiently to prevent
water from reaching boiler.
Garage installation
Precautions
1. Take the following special precautions when installing the
boiler in a garage. If the boiler is located in a garage:
Mount the boiler at a height above the floor as specified
in the National Fuel Gas Code, ANSI Z223.1 for U. S.
installations, or 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.
Provide air openings to room
Air openings — General
Follow the National Fuel Gas Code (U. S.) or CSA B149.1 and
B149.2 (Canada) and all applicable codes to size/verify size of the
combustion/ventilation air openings into the space. See the vent-
ing instructions section of this manual for required air openings
and sizing for either direct vent or direct exhaust installation.
Air openings — SlimFit boiler alone in boiler
room
For direct vent installations (air piped
1. DIRECT VENT —
to boiler), no air ventilation openings into boiler room are
needed if clearances around the SlimFit boiler are at least
equal to the SERVICE clearances shown in Figure 1, page 6.
For spaces that DO NOT supply the minimum service access
clearances, see the direct vent venting instructions in this
manual for required openings.
Part number 550-100-162/0815
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FIRED WATER BOILER
(continued)
2. DIRECT EXHAUST —
bustion air from inside), provide air openings as specified in
the direct exhaust venting section of this manual.
Air openings — SlimFit boiler in same room
with other gas or oil-fired appliances
1. DIRECT VENT —
air piped to boiler), size openings only on the basis of the
other appliances in the space. No additional air opening
free area is needed for the SlimFit boiler because it takes its
combustion air from outside.
2. DIRECT EXHAUST —
bustion air openings into the room must be sized to handle
the SlimFit boiler and all other appliances. See the direct
exhaust venting instructions in this manual for required
openings.
Boiler Manual Series 2
For direct exhaust installations (com-
For direct vent installations (combustion
For direct vent installations, when the SlimFit boiler
is located in the same room as other appliances,
provide combustion air openings correctly sized
for all appliances in the room except the SlimFit
boiler.
Reinstall the boiler jacket front door after servicing.
The boiler front door must be securely fastened to
the boiler to prevent the boiler from drawing air
from inside the boiler room. This is particularly
important if the boiler is located in the same room
as other appliances.
Failure to comply with the above warnings could
result in severe personal injury, death or substantial
property damage.
For direct exhaust installations, com-
For direct exhaust installations, when the SlimFit
boiler is located in the same room as other appli-
ances, provide combustion air openings correctly
sized for all appliances, including the SlimFit boiler.
Failure to comply with the above warnings could
result in severe personal injury, death or substantial
property damage.
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