Termination (Rxgy-G02 & Rxgy-G01); Multiventing Of Direct Vent Furnaces - Rheem 96v series Installation Instructions Manual

Figures 33 & 34: NOTE: WHEN VENTING MULTIPLE FURNACES IN CLOSE PROXIMITY, EACH FURNACE MUST
BE INDIVIDUALLY VENTED – NO COMMON VENTING IS PERMITTED. See Figures 33 & 34 for positioning of the
terminations. When more than two furnaces are to be vented, there must be at least 4 feet between the first two fur-
naces and the third and etc. Figure 33, (Detail A) below shows the necessary detail for the roof penetration on a stan-
dard direct-vent vertical termination.
FIGURE 33
TWO FURNACE VENTING
TWO PIPE VENTING THROUGH ROOF
TERMINATIONS MORE THAN
24" ABOVE ROOF PENETRA-
TION REQUIRE ADDITIONAL
SUPPORT.
COMBUSTION
AIR INTAKE
2" PVC
SEE DETAIL
"A"
TWO PIPE VENTING THROUGH WALL
12"/31cm MIN. ABOVE
A
GRADE OR HIGHEST
8"/20cm
ANTICIPATED SNOW LEVEL.
CANADA: MUST CONFORM TO
MIN.
CSA B149.1-10, SECT. 8.14
DIRECT VENT VERTICAL TERMINATION DETAIL
48" MAX. 45" MAX.
*
(122 cm) (114 cm)
3" MIN.
(8 cm)
*3" (8cm) minimum only if no snow accumulation is anticipated.
66
NOTE: IF 3 Ø
VENTING IS
USED, BOTH
PIPES (INTAKE
AND EX-
HAUST) MUST
BE REDUCED
TO 2 Ø
3" (8cm) MIN.
BEFORE
12" (32cm) MAX.
PENETRATING
ROOF.
See
A
ST-A1194-22
ST-A1194-21
DETAIL A
12" (31cm) U.S.
36" MAX.
CANADA: TERMINATIONS
(91 cm) MUST CONFORM TO
CSA B149.1-10, SECT. 8.14
NOTE: IF 3 Ø
VENTING IS USED,
BOTH PIPES (INTAKE
AND EXHAUST) MUST
BE REDUCED TO 2 Ø
BEFORE PENETRATING
ROOF.
ST-A1194-18
DETAIL A
FIGURE 34
TWO FURNACE VENTING WITH CONCENTRIC VENTING
CONCENTRIC VENTING THROUGH ROOF
SEE
MINIMUM 12"/31cm IN
U.S. ABOVE AVERAGE
SNOW ACCUMULATION.
MAXIMUM OF 24"/61cm
ABOVE ROOF.*
CONCENTRIC VENTING THROUGH WALL
6' (1.8m) MINIMUM
10' (3m) RECOMMENDED
MINIMUM 12"/31cm
ABOVE GRADE IN U.S.
SEE A
*
CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10,
SECT 8.14.
A
2 FURNACES
➀ Terminations must be greater than 8" apart.
➁ Terminations must be less than 24" apart or greater than
➁
36" apart.
3rd OR MORE FURNACES
Each additional termination must be greater than 48" from
the previous termination.
A
*
ST-A1194-22