Lennox ELITE Series Installation Instructions Manual page 33

6 - If unit will be started immediately upon completion
of installation, prime trap per procedure outlined in
Unit Start-Up section.
CONDENSATE TRAP LOCATIONS
(Unit shown in upflow position with remote trap)
FieldProvidedVent
Min. 1" Above Condensate
Drain Connection
1" Min.
2" Max.
PV C PipeOnly
Trap Can Be Installed a
Maximum 5' From Furnace
*Piping from furnace must slope down a
minimum 1/4" per ft. toward trap
Figure 47
(Trap at coil is optional)
Drain Pan
Piping from furnace and evaporator coil must slope down a minimum 1/4" per ft. toward trap
*5' max.
T o Drai n
Furnace with Evaporator Coil Using a Separate Drain
(Unit shown in horizontal left-hand discharge position)
Evaporator
Coil
Condensate
Drain Connection
Condensate line must slope downward away from the trap
to drain. If drain level is above condensate trap, conden-
sate 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 possi-
ble, a heat cable kit may be used on the condensate trap
and line. Heating cable kit is available from Lennox in var-
ious lengths; 6 ft. (1.8m) - kit no. 26K68; 24 ft. (7.3m) - kit
no. 26K69; and 50 ft. (15.2m) - kit no. 26K70.
Furnace With Evaporator
Coil Using A Separate Drain
(Trap at coil is optional)
Field Provided Vent
(1" min. 2" max. above
condensate connection)
Condensate
Drain Connection
4"min
5"max
5' max.
PVC Pipe Only
Figure 49
Page 33
Evaporator drain
line required
Figure 48
Field Provided Vent
(4" min. to 5" max. above
condensate connection)
.