1/2 (12.7) FOAM INSULATION |
|
IN UNCONDITIONED SPACE | Inches (mm) |
n
OUTSIDEWALL
qlp |
|
| Optional Turndown |
| Shown |
TOPVIEW | (Intake Onty) |
|
WALL TERMINATION
FIGURE 11
EXHAUST
TERMINATION
EXHAUST
INTAKE
abovegrade,
Inches (ram)
CONCENTRIC WALL TERMINATION (60G77)
FIGURE 12
courtyard areas or other recessed areas. Do not position termination ends directly below roof eaves or above a walkway. Since the G32 is a certified di- rect vent, Category iV gas furnace, the location of the termination is limited by local building codes. In the absence of local codes, refer to the current Na- tional Fuel Gas Code ANSI
When horizontally vented, minimum clearance for termination from electric meters, gas meters, regula- tors and relief equipment is 4 feet (1.2 m) for US installations. Refer to the current
for installations in Canada or with authorities having local jurisdiction.
At vent termination, care must be taken to maintain protective coatings over building materials (pro- longed exposure to exhaust condensate can destroy protective coatings). It is recommended that the ex- haust outlet not be located within 6 feet (1.8 m) of a condensing unit because the condensate can dam- age the painted coating.
Inches(mm)
UNCONDITIONED
SPACE
OUTSIDE WALL
PROVIDE SUPPORT
12 (305) MIN for 2 (51)
20 (5oa)MAXfor3 (76):
F
FOR INTAKE AND / | HI II t2(S_0)ASOVE | |
EXHAUST UNES EVERY |
| |
3_(914) |
| |
1/2113) FOAM |
| |
INSULATION IN |
| |
UNCONOmONED | Ii2 (131 FOAM | |
SPACE | ||
INSULATION |
SiDE VIEW
WALL RINGTERMINATION
See v.ntlng table 4 for maglng_ venting lengths with this Irmr:l_mant.
FIGURE 13
9 - Position terminationends so they are free from any obstructions and above the level of snow accumula-
tion (where applicable). Termination ends must be a
minimum of 12 inches (305 mm) above grade level. Do not point into window wells, stairwells, alcoves,
10 - Suspend piping using hangers at a minimum of every 5 feet (1.52 m) for schedule 40 PVC and every 3 feet (.91 m) for
11 - In areas where piping penetrates joists or interior walls, hole must be large enough to allow clearance
on all sides of pipe as it passes through the center of the hole.
12 - Isolate piping at the point where it exits the outside wall or roof.
Page 12