Columbia CDVB-100, Инструкция по установке, эксплуатации и обслуживанию, Страница: 14 / 44

14
HORIZONTAL VENT INSTALLATION INSTRUCTIONS
A. B oilers covered in this section are design-certified as
CATEGORY III for venting, only w hen installed with
manufacturer specified vent system components and
installation practices.
B. Install vent pipe beginning at the vent connector and
work toward the vent cap.
C. Vent pipe and fittings MUST NOT be routed into,
through, or within any other vent, such as an
existing masonry chimney or factory built chimney.
(Recommended installation is shown in figure 7a & 7b
page 14, unacceptable installation is shown in figure 8
page 14).
D. Vent pipe lengths. The maximum length is the
combined length of straight horizontal and vertical
runs, and the equivalent straight length of fittings. The
required lengths for each boiler are as follows:
Vent Pipe Lenghts
Model
Vent Pipe
Diameter
Vent Lengths
Equivalent Feet
Per Fitting
Maximum Minimum
DV50/DV100 3" (7.6cm)
30 ft (9.1m) w/condensate Tee & 2
elbows
2 ft (0.6m) w/1 elbow 5 ft (1.5m)
DV125 3" (7.6cm) 25 ft (7.6m) w/1 elbow 2 ft (0.6m) w/1 elbow 5 ft (1.5m)
DV150/200 4" (10.2cm) 30 ft (9.1m) w/1 elbow 2 ft (0.6m) w/1 elbow 5 ft (1.5m)
Example: 20 feet (6m) of vent pipe w/1 elbow is equivalent to 15 feet (4.6m) of vent pipe w/2 elbows.
Note: condensate trap is not required on models DV150 thru 200.
E. Slope horizontal runs upwards not less than 1/4 inch/
foot (21mm/m) from boiler to vent terminal.
F. No portion of the vent pipe should have dips or sags
where condensate could collect, see figure 9 on page
14 for a typical vent system.
G. Rigidly support vent pipe every 5 feet and at the
elbows. Plumbers straps may be used.
H. Clearances and enclosures. ALL vent pipe and fittings
must be installed with appropriate air space clearances
to combustibles. These air space clearances apply
to indoor or outdoor vents, whether they are open,
enclosed, horizontal or vertical or pass through floors,
walls, roofs, or framed spaces. The appropriate air
space clearances should be observed to joists, studs,
subfloors, plywood, drywall, or plaster enclosures,
insulated sheathing, rafters, roofing, and any other
combustible material. The minimum air space clearance
also applies to electrical wires and any kind of building
insulation.
I. Do not insulate or otherwise wrap vent pipe or fittings.
J. For Horizontal runs maintain minimum clearance of
6 inches from vent pipe to any combustible material,
electric wires, and building materials.