Page 46
FIGURE 30
2” EXTENSION FOR 2” PVC
PIPE1” EXTENSION FOR 3”
PVC PIPE
1-1/2” ACCELERATOR
(
all -040, -060 and -080 units)
FURNACE
EXHAUST
PIPE
FURNACE
INTAKE
PIPE
4''
GLUE EXHAUST
END FLUSH INTO
TERMINATION
FLAT
SIDE
FLUSH-MOUNT SIDE WALL TERMINATION
51W11 (US) or 51W12 (Canada)
FIGURE 31
DIRECT VENT CONCENTRIC ROOFTOP TERMINATION
71M80, 69M29 or 60L46 (US)
44W92 or 44W93 (Canada)
Minimum
Above Average
Snow
Accumulation
SHEET METAL STRAP
(Clamp and sheet metal strap
must be field installed to support
the weight of the termination kit.)
FLASHING
(Not Furnished)
CLAMP
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 040, 060 and 080 units
12” (305mm)
INTAKE
AIR
EXHAUST
VENT
12” (305mm) Min.
above grade or
average snow
accumulation.
FIGURE 32
DIRECT VENT CONCENTRIC WALL TERMINATION
71M80, 69M29 or 60L46 (US)
44W92 or 44W93 (Canada)
INTAKE
AIR
INTAKE
AIR
INTAKE
AIR
OUTSIDE
WALL
GRADE
CLAMP
(Not Furnished)
FIELD-PROVIDED
REDUCER MAY BE REQUIRED
TO ADAPT LARGER VENT
PIPE SIZE TO TERMINATION
EXHAUST
VENT
1-1/2” (38mm) accelerator pro
vided on 71M80 & 44W92 kits
for 040, 060 and 080 units
EXHAUST
VENT
FIGURE 33
EXHAUST
VENT
INTAKE
AIR
5-1/2”
(140mm)
Front View
12”
(305MM)
5”
(127MM)
18” MAX.
(457MM)
EXHAUST VENT
INTAKE
AIR
OPTIONAL VENT TERMINATION FOR MULTIPLE UNIT
INSTALLATION OF DIRECT VENT WALL TERMINATION KIT
(30G28 or 81J20)
Inches (MM)
Side View
12” (305MM) Min.
above grade or
average snow
accumulation.
optional intake elbow
SL297UHNV DIRECT VENT APPLICATION
USING EXISTING CHIMNEY
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.
FIGURE 34
3” - 8”
(76MM-
203MM)
STRAIGHT-CUT OR
ANGLE-CUT IN DIRECTION
OF ROOF SLOPE *
EXHAUST VENT
1/2” (13MM)
WEATHERPROOF
INSULATION
SHOULDER OF FITTINGS
PROVIDE SUPPORT
OF PIPE ON TOP PLATE
ALTERNATE
INTAKE PIPE
INTAKE PIPE
INSULATION (optional)
EXTERIOR
PORTION OF
CHIMNEY
INSULATE
TO FORM
SEAL
SHEET
METAL TOP
PLATE
*SIZE TERMINATION
PIPE PER TABLE
Minimum 12” (305MM)
above chimney top
plate or average snow
accumulation
8” - 12”
(203MM - 305MM)
3”-8”
(76MM-203MM)
Condensate Piping
This unit is designed for either right‐ or left‐side exit of con
densate piping in upflow applications. In horizontal applica
tions, the condensate trap must extend below the unit. An
8” service clearance is required for the condensate trap.
Refer to figure 35 for condensate trap locations. Figure 43
shows trap assembly using 1/2” PVC or 3/4” PVC.
NOTE
- If necessary the condensate trap may be installed
up to 5’ away from the furnace. Use PVC pipe to connect
trap to furnace condensate outlet. Piping from furnace
must slope down a minimum of 1/4” per ft. toward trap.
1 - Determine which side condensate piping will exit the
unit, location of trap, field-provided fittings and length of
PVC pipe required to reach available drain.
