Page 42
31-5000728 Rev. 0
6.
If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in Unit
Start-Up section.
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.
*5’ max.
1” Min.
2” Max.
Figure 47. Condensate Trap Locations
Figure 48. Unit with Cooling Coil Using Separate
Drain
5’ max.
4”min
5”max
Figure 49. Evaporator Coil Using a Separate Drain
(Unit shown in upflow position with remote trap)
*Piping from furnace must slope down a
minimum of 1/4” per ft. toward trap.
Field provided vent min.
1” above condensate
drain connection
PVC pipe only
Trap can be installed a
max. 5’ from furnace
To drain
Evaporator drain
line required
Condensate
drain connection
(Trap at coil is optional)
Field provided vent
(1” min. 2” max. above
condensate drain
connection)
(Unit shown in horizontal left-hand discharge position)
Field provided vent
(4” min. 5” max. above
condensate drain
connection)
PVC pipe only
Condensate
drain connection
Evaporator coil
Drain pan
(Trap at coil is optional)
Piping from furnace and evaporator coil must slope down a minimum 1/4” per ft. toward trap
