Lennox EL195DF SERIES User Manual page 34

6 − If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in Unit
Start−Up section.
Condensate line must slope downward away from the
trap to drain. If drain level is above condensate trap,
condensate pump must be used. Condensate drain
line should be routed within the conditioned space to
avoid freezing of condensate and blockage of drain
line. If this is not possible, a heat cable kit may be used
on the condensate trap and line. Heat cable kit is avail-
able from Lennox in various lengths; 6 ft. (1.8m) − kit
no. 26K68; 24 ft. (7.3m) − kit no. 26K69; and 50 ft.
(15.2m) − kit no. 26K70.
CONDENSATE TRAP LOCATION
(shown with right side exit of condensation)
Trap can be installed a
maximum of 5 ft. from furnace.
(*PVC Only)
Field Provided Vent
1" Min. 2" Max. Above
Condensate Drain
1" min.
2" max.
5' max.
*Piping from furnace must slope down a
minimum of 1/4" per ft. toward trap.
FIGURE 43
EL195DF with Evaporator Coil
Using a Separate Drain
Field−Provided Vent
(1" Min. to 2" Max. above
condensate drain connection)
Condensate
Drain Connection
Evaporator Drain
Line Vent Required
FIGURE 44
to drain
Drain
When combining the furnace and evaporator
coil drains together, the A/C condensate drain
outlet must be vented to relieve pressure in or-
der for the furnace pressure switch to operate
properly.
EL195DF with Evaporator Coil
Using a Common Drain
Field−Provided Vent
(1" Min. to 2" Max. above
condensate drain connection)
Condensate
Drain Connection
Evaporator Drain
Line Vent Required
Condensate Trap With Optional Overflow Switch
From Evaporator Coil
Optional
Overflow Switch
To Drain
Do not use copper tubing or existing copper
condensate lines for drain line.
Page 34
IMPORTANT
FIGURE 45
Field−Provided Vent
1" Min. to 2" Max.
above condensate drain connection)
Furnace Condensate
Drain Connection
FIGURE 46
CAUTION