Exhaust Piping Terminations For Non‐Direct Vent Applications - Lennox EL296DF045XV36B Unit Information

12" (305mm)
Minimum
Above Average
Snow
Accumulation
CLAMP
DIRECT VENT CONCENTRIC ROOFTOP TERMINATION
71M80, 69M29 or 60L46 (US)
44W92 or 44W93 (Canada)
FIGURE 37
FIELD-PROVIDED
REDUCER MAY BE
REQUIRED TO ADAPT
LARGER VENT PIPE
OUTSIDE
SIZE TO TERMINATION
WALL
EXHAUST
AIR
INTAKE
CLAMP
AIR
(Not Furnished)
DIRECT VENT CONCENTRIC WALL TERMINATION
71M80, 69M29 or 60L46 (US)
44W92 or 44W93 (Canada)
FIGURE 38
EXHAUST
VENT
5"
(127mm)
INTAKE
AIR
18" MAX.
(457mm)
EXHAUST VENT
Inches (mm)
optional intake elbow
OPTIONAL VENT TERMINATION FOR MULTIPLE UNIT
INSTALLATION OF DIRECT VENT WALL TERMINATION KIT
(30G28 or 81J20)
FIGURE 39
1-1/2" (38mm) accelerator
provided on 71M80 & 44W92
kits for EL296DFV045P36B-
& 070P36B
FLASHING
(Not Furnished)
INTAKE
SHEET METAL STRAP
(Clamp and sheet metal strap
must be field installed to support
the weight of the termination kit.)
FIELD-PROVIDED
REDUCER MAY BE REQUIRED
TO ADAPT LARGER VENT
PIPE SIZE TO TERMINATION
1-1/2" (38mm) accelerator
provided on 71M80 &
44W92 kits for
EL296DFV045P36B- &
070P36B
INTAKE
AIR
EXHAUST
AIR
INTAKE
12" (305mm) Min.
AIR
above grade or
average snow ac­
cumulation.
GRADE
12"
(305mm)
5-1/2"
(140mm)
Front View
12" (305mm) Min.
above grade or
average snow ac­
INTAKE
cumulation.
AIR
Side View
2" EXTENSION FOR
2" PVC PIPE
1" EXTENSION FOR
3" PVC PIPE
FURNACE
INTAKE
PIPE
FLUSH-MOUNT SIDE WALL TERMINATION
KIT 51W11 (US) or 51W12 (Canada)
EL296DFV DIRECT VENT APPLICATION
USING EXISTING CHIMNEY
8" - 12"
(203mm - 305mm)
Minimum 12" (305MM)
above chimney top
plate or average snow
accumulation
*SIZE TERMINATION
PIPE PER TABLE 24.
NOTE - Do not discharge exhaust gases directly into any chimney or vent stack. If ver­
tical discharge through an existing unused chimney or stack is required, insert piping
inside chimney until the pipe open end is above top of chimney and terminate as illus­
trated. In any exterior portion of chimney, the exhaust vent must be insulated.
Details of Exhaust Piping Terminations for Non‐Direct
Vent Applications
Exhaust pipes may be routed either horizontally through an
outside wall or vertically through the roof. In attic or closet
installations, vertical termination through the roof is pre­
ferred. Figures 42 through 43 show typical terminations.
1. Exhaust piping must terminate straight out or up as
shown. The termination pipe must be sized as listed in
table 24.The specified pipe size ensures proper ve­
locity required to move the exhaust gases away from
the building.
2. On field supplied terminations for side wall exit, ex­
haust piping may extend a maximum of 12 inches
(305mm) for 2" PVC and 20 inches (508mm) for 3"
(76mm) PVC beyond the outside wall.
Page 50
FURNACE
EXHAUST
PIPE
4''
GLUE EXHAUST
END FLUSH INTO
TERMINATION
1-1/2" ACCELERATOR
(all-045, -070 and -090 units)
FIGURE 40
STRAIGHT-CUT OR
ANGLE-CUT IN DIRECTION
OF ROOF SLOPE *
3" - 8" EXHAUST VENT
(76mm-
1/2" (13mm)
203mm)
WEATHERPROOF
INSULATION
SHOULDER OF FITTINGS
INTAKE PIPE
PROVIDE SUPPORT
INSULATION (optional)
OF PIPE ON TOP PLATE
SHEET
METAL TOP
PLATE
3" - 8"
(76mm-
203mm)
INSULATE
TO FORM
SEAL
FIGURE 41
ALTERNATE
INTAKE PIPE
EXTERIOR
PORTION OF
CHIMNEY