www.camplux.com
1
25
Visit Us: Camplux.com
3330-A Marathon Ct Charleston, SC 29418
(844) 538-7475
Number of 90°
elbows(Bends)
One(1)90° elbow is equivalent to 5 feet of straight pipe
Maximum length
of straight pipe
1
32″
27″
22″
2
2
Venting Lengths
Maximum vent length
Owner must refer to vent manufacturer’s instructions and specifications.
The system will not operate if there is excessive restriction (pressure drop) in the
venting system. A maximum of 32 feet of vent pipe may be used provided there is
only one 90° elbow in the system. If additional elbows are required: two elbows
can be used with 27 feet, and three elbows can be used with 22 feet of vent pipe.
A 90°elbow is equivalent to 5 feet of straight pipe. A 45°elbow is equivalent to 2
feet 6″ of straight pipe.
The termination elbow does not count as an elbow when determining total vent
lengths.
The vent must be installed with a slight downward slope of 1/4″ per feet of
horizontal run toward the vent terminal (see diagram below). This ensures that
any condensate formed during operation of the unit is evacuated from the
appliance.
A 1/4″ per feet upward slope is acceptable when it is not possible to vent with a
downward slope, however, a UL approved category III stainless steel condensate
trap MUST be installed at the beginning of the horizontal run (see page 21 Typical
Horizontal Termination with 1/4″ per feet upward slope or page 17 Standard
Vertical Vent Termination for examples).
Minimum vent length
The
venting may be as short as 12″ provided one vent termination is installed to
the outdoors through a sidewall, one 90° elbow is included in the installation, and
the wall thimble is installed.
NOTICE:
Make sure that the seam of the vent pipe in horizontal runs is toward
the top of the installation (see illustration below).
