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on the condensate trap and line. Heating cable kit is
available 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.
FIGURE 37
(Unit shown in upflow position with remote trap)
*5’ max.
To Drain
PVC PipeOnly
Field ProvidedVent
Min. 1” Above Condensate
Drain Connection
1” Min.
2” Max.
CONDENSATE TRAP LOCATIONS
*Piping from furnace must slope down a minimum of
1/4” per ft. toward trap.
FIGURE 38
FurnaceCondensate
DrainConnection
FromEvaporatorCoil
Optional
Condensate Trap With Optional Overflow Switch
Field Provided Vent
(Upflow furnace 1”Min to 2” Max
Horizontal Furnace 4” Min to 5” Max
above condensate drain connection)
FIGURE 39
UNIT With Evaporator Coil
Using A Separate Drain
Condensate
DrainConnection
Field Provided Vent
(1” min. 2” max. above
condensate connection)
Evaporator drain
line required
Trap At Coil is Option
FIGURE 40
Unit with Evaporator Coil
Using a Common Drain
(1” min. to 2” Max.above
condensate drain connection)
Condensate
DrainConnection
Evaporator drain
line required
Trap at coil is option
