Page 35
IMPORTANT
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.
FIGURE 55
HorizontalFurnace4” Min. to 5” Max.above
condensatedrain connection)
FurnaceCondensate
DrainConnection
From Evaporator Coil
Optional
Condensate Trap With Optional Overflow Switch
FIGURE 56
EL195UHE with Evaporator
Coil Using a Common Drain
(1” min. to 2” Max.above
condensatedrain connection)
Condensate
DrainConnection
Evaporator drain
line required
FIGURE 57
EL195UHE with Evaporator Coil Using a Common Drain
(Unit shown in horizontal left−hand discharge position)
(4” min. to 5” Max.above
condensatedrain connection)
5’ max.
PVC Pipe Only
4”min
5”max
Evaporator
Coil
Drain
Pan
Piping from furnace and evaporator coil must slope down a minimum 1/4" per ft. toward trap
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