035-17468-001 Rev. A (801)
20
Unitary Products Group
6.
10 feet from any forced air inlet to the building. Any fresh
air or make up inlet as for a dryer or furnace area is con-
sidered to be a forced air inlet.
7.
Avoid areas where condensate drippage may cause
problems such as above planters, patios, or adjacent to
windows where steam may cause fogging.
NOTE:
Consideration must be given for degradation of build-
ing materials by flue gases.
NOTE:
Shaded components of the vent system shown in Fig-
ures 27 & 28 are considered to be terminations. These com-
ponents should not be counted when determining piping
limitations. Sidewall termination may require sealing or
shielding of building surfaces with a corrosive resistant mate-
rial due to vent system corrosive combustion products.
PIPING ASSEMBLY
The final assembly procedure for the vent piping is as follows:
1.
Cut piping to the proper length, beginning at the furnace.
2.
Deburr the piping inside and outside.
3.
Chamfer the outer edges of the piping.
4.
Dry-fit the entire vent piping system.
5.
Disassemble the piping and apply cement primer and
cement per the cement manufacturer's instructions.
Primer and cement must conform to ASTM D2564 for
PVC, or ASTM D2235 for ABS piping.
FIGURE 26 :
Minimum Vent Terminal Clearances
(1-Pipe System) - U.S. Only
FIGURE 27 :
Horizontal Termination Configuration with 12”
Minimum Clearance
4”
4”
6”
4”
4”
4”
3”
4”
10”
SOFFIT
VENTS
FURNACE VENT
ELECTRIC
METER
(10” RECOMMENDED)
FORCED
AIR
INTAKE
INSIDE
CORNER
1’ PLUS
SNOW CLEARANCE
FIGURE 28 :
Horizontal Termination Raised Configuration
for Additional Clearance
FIGURE 29 :
\Rooftop Termination
Solvent cements are flammable and must be used in
well-ventilated areas only. Keep them away from
heat, sparks and open flames (including pilots). Do
not breathe vapors and avoid contact with skin and
eyes.
