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CAUTION
Do
not use copper tubing or existing copper conden-
sate lines for drain line.
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. 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 45
(Unit shown in upflow position with remote trap)
*5’ max.
To Drain
PVCPipeOnly
FieldProvidedVent
Min. 1” AboveCondensate
DrainConnection
1” Min.
2” Max.
CONDENSATE TRAP LOCATIONS
*Piping from furnace must slope down a minimum of
1/4" per ft. toward trap.
FIGURE 46
92AF1UH/95AF1UH With Evaporator
Coil Using A Separate Drain
Condensate
DrainConnection
Field Provided Vent
(1" min. 2" max. above
condensate connection)
Evaporator drain
line required
FIGURE 47
92AF1UH/95AF1UH With Evaporatoir Coil Using a Separate Drain
(Unit shown in horizontal left−hand discharge position)
.
5’ max.
PVC Pipe Only
4”min
5”max
Evaporator
Coil
Drain Pan
Condensate
DrainConnection
Field Provided Vent
(4" min. to 5" max. above
condensate connection)
Piping from furnace and evaporator coil must slope down a minimum 1/4" per ft. toward trap
