Part number 550-100-168/0516
25
SlimFit
®
Series 3
COMMERCIAL
CONDENSING
GAS
-
FIRED
WATER
BOILER
—
Boiler Manual
Direct Exhaust
#ATEGORY))
/NLY 6ENTINGnGENERAL
Vent piping
Boiler flue gases must be piped from the boiler to outside,
following the instructions in the Boiler manual, and
compliant with all applicable codes.
Combustion and ventilation air
openings
(direct exhaust installations)
Combustion and ventilation air are provided from the
boiler room on direct exhaust installations. Follow all
instructions in the Boiler manual, plus all applicable
codes, to provide required air openings.
Vent termination options
Vent piping must terminate out through the roof of the
building, using only one of the methods described in the
Boiler manual.
Vent pipe diameter
A 6” or 8” vent pipe diameter must be used.
Vent pipe minimum length
Direct exhaust — no minimum.
Vent and air piping materials
See the
SlimFit
Boiler Manual for approved vent and air
piping materials, for
DIRECTEXHAUST
.
5SETHESAMEVENTORAIRPIPINGMATERIAL
THROUGHOUT
— Do not connect different
types of piping together.
Install a bird screen in each vent pipe termination (coupling
or elbow). Bird screens are not supplied with the
SlimFit
boiler. Purchase separately from Weil-McLain.
3LIM&IT"OILERSMUSTBEVENTEDANDSUPPLIED
WITHCOMBUSTIONANDVENTILATIONAIRUSING
PIPINGANDMETHODSDESCRIBED
Inspect finished vent and air piping thoroughly
to ensure all are water-tight and comply with the
instructions provided and with all requirements
of applicable codes.
Failure to provide a properly-installed vent and
air system will cause severe personal injury or
death.
If the vent/air piping configurations covered in
the
SlimFit
boiler manual cannot be applied for
a particular installation, contact Weil-McLain for
assistance. Other configurations may be available.
Installations must comply with local require-
ments and with the National Fuel Gas Code,
ANSI Z223.1 for U.S. installations or CSA B149.1
or B149.2 for Canadian installations.
Use only the materials listed in the Boiler manual
for vent and air pipe and fittings. Failure to com-
ply could result in severe personal injury, death
or substantial property damage.
)FUSEDAMASONRYCHIMNEYCAN/.,9BE
USEDASA0)0%#(!3%FORVENTPIPE
— The
vent piping must be installed as instructed in this
manual and all joints must be sealed. The chim-
ney must be used only for
boilers. NO OTHER
appliance or fireplace can be connected to the
chimney.
The chimney must be straight, with no offsets,
and the vent and air piping materials must com-
ply with this instruction manual. The chimney
must be fitted with a sealed access opening,
through which the interior of the chimney can
be inspected. The chimney (and liner, if installed)
must be inspected at least once annually to verify
condition.
Failure to comply could result in severe personal
injury, death or substantial property damage.
