Lennox EL296DFV Installation Instructions Manual page 32

Condensate Piping
This unit is designed for either right‐ or left‐side exit of con­
densate piping. Refer to figures 46 and 47 for condensate
trap locations.
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.
CONDENSATE TRAP AND PLUG LOCATIONS
Trap
(same
on right
side)
1-1/2 in.
FIGURE 46
CONDENSATE TRAP LOCATION
(shown with right side exit of condensation)
Trap can be installed a maximum
of 5ft. from furnace (*PVC only)
Field Provided Vent
1" min. 2" max. above
condensate drain.
1" min.
2" max .
*Piping from furnace must slope down a minimum of
1/4" per ft. toward trap.
FIGURE 47
Plug
(same on left side)
5' max.
to drain
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.
2 - Use a large flat head screw driver or a 1/2" drive socket
extension and remove plug (figure 46) from the cold
end header box at the appropriate location on the side
of the unit. Install provided 3/4 NPT street elbow fitting
into cold end header box. Use Teflon tape or appropri­
ate pipe dope.
NOTE - Cold end header box drain plugs are factory in­
stalled. Check the unused plug for tightness to prevent
leakage.
3 - Install the cap over the clean out opening at the base
of the trap. Secure with clamp. See figure 52.
4 - Install drain trap using appropriate PVC fittings, glue
all joints. Glue the provided drain trap as shown in fig­
ure 52. Route the condensate line to an open drain.
5 - Figure 49 shows the furnace and evaporator coil using
a separate drain. If necessary, the condensate line
from the furnace and evaporator coil can drain togeth­
er. See figures 50 and 51. The field provided vent must
be a minimum 1" to a maximum 2" length above the
condensate drain outlet connection.
NOTE - If necessary the condensate trap may be installed
up to 5 feet away from the furnace. Piping from furnace
must slope down a minimum of 1/4" per ft. toward trap.
NOTE - Appropriately sized tubing and barbed fitting may
be used for condensate drain. Attach to the drain on the
trap using a hose clamp. See figure 48.
Field Provided Drain Components
Elbow
Tubing
Page 32
Barbed Fitting
Hose Clamp
FIGURE 48