Lennox EL297UH045XV36B Unit Information page 77

Furnace with Evaporator
Coil Using a Common Drain
Evaporator drain
line required
(Trap at coil is optional)
(1" min. to 2" Max.above
condensatedrain connection)
Condensate
Drain Connection
FIGURE 49
Furnace with Evaporator Coil Using a Common Drain
(Unit shown in horizontal left−hand discharge position)
(4" min. to 5" Max.above
Evaporator
condensatedrain connection)
Coil
4"min
5"max
5' max.
PVC Pipe Only
Condensat e Drai n
Connection
(Trap at coil is optional)
Drain Pan
Piping from furnace and evaporator coil must slope
down a minimum 1/4" per ft. toward trap
FIGURE 50
Page 77