Lennox Allied Air A95UH1D Installation Instructions Manual page 37

* Piping from furnace must slope down a minimum of 1/4" per ft. toward trap.
Figure 54. Evaporator Coil Using a Separate Drain
(Unit shown in horizontal right-hand discharge position)
Figure 55. Evaporator Coil Using a Separate Drain Figure 56. Evaporator Coil Using a Common Drain
* Piping from furnace must slope down a minimum of 1/4" per ft. toward trap.
Figure 57. Evaporator Coil Using a Common Drain
(Unit shown in horizontal left-hand discharge position)
507270-03 Issue 1917 Page 37 of 60