Lennox EL296UHVX Series Unit Information page 66

2" EXTENSION FOR 2" PVC
PIPE1" EXTENSION FOR 3"
PVC PIPE
4''
FURNACE
INTAKE
PIPE
FLAT
SIDE
FLUSH-MOUNT SIDE WALL TERMINATION
51W11 (US) or 51W12 (Canada)
FIGURE 35
EXHAUST
VENT
12" (305mm)
INTAKE
Minimum
Above Average
Snow
Accumulation
CLAMP
DIRECT VENT CONCENTRIC ROOFTOP TERMINATION
71M80, 69M29 or 60L46 (US)
44W92 or 44W93 (Canada)
FIGURE 36
FIELD-PROVIDED
REDUCER MAY BE REQUIRED
TO ADAPT DIFFERENT VENT
PIPE SIZE TO TERMINATION
OUTSIDE
WALL
EXHAUST
VENT
INTAKE
CLAMP
AIR
(Not Furnished)
DIRECT VENT CONCENTRIC WALL TERMINATION
71M80, 69M29 or 60L46 (US)
44W92 or 44W93 (Canada)
FIGURE 37
FURNACE
EXHAUST
PIPE
GLUE EXHAUST
END FLUSH INTO
TERMINATION
1-1/2" ACCELERATOR
(
all -45, -070 and -090 units)
1 1/2" (38mm) accelerator
provided on 71M80 & 44W92
kits for EL296UHV045P24B,
070P24B & 070P36B
FLASHING
(Not Furnished)
AIR
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 DIFFERENT VENT
PIPE SIZE TO TERMINATION
1-1/2" (38mm) accelerator
provided on 71M80 & 44W92
kits for EL296UHV045P24B,
070P24B & 070P36B
INTAKE
AIR
EXHAUST
VENT
INTAKE
12" (305mm) Min.
AIR
above grade or
average snow
accumulation.
GRADE
EXHAUST
VENT
INTAKE
AIR
Inches (MM)
optional intake elbow
OPTIONAL VENT TERMINATION FOR MULTIPLE UNIT
INSTALLATION OF DIRECT VENT WALL TERMINATION KIT
EL296UHV DIRECT VENT APPLICATION
USING EXISTING CHIMNEY
8" - 12"
(203MM - 305MM)
Minimum 12" (305MM)
above chimney top
plate or average snow
accumulation
*SIZE TERMINATION
27
PIPE PER TABLE .
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 40 through 41 show typical terminations.
1. Exhaust piping must terminate straight out or up as
shown. The termination pipe must be sized as listed in
table 27. The specified pipe size ensures proper ve­
locity required to move the exhaust gases away from
the building.
Page 66
12"
(305MM)
5-1/2"
5"
(140mm)
(127MM)
18" MAX.
Front View
(457MM)
EXHAUST VENT
12" (305MM) Min.
above grade or
average snow
INTAKE accumulation.
AIR
Side View
(30G28 or 81J20)
FIGURE 38
STRAIGHT-CUT OR
ANGLE-CUT IN DIRECTION
3"-8"
OF ROOF SLOPE *
(76MM-203MM)
EXHAUST VENT
1/2" (13MM)
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 39
ALTERNATE
INTAKE PIPE
EXTERIOR
PORTION OF
CHIMNEY