Installation Guide
507052-04 Page 33 of 53Issue 1727
Figure 48. Evaporator Coil Using a Separate Drain
When combining the furnace and evaporator coil
drains together, the A/C condensate drain outlet must
be vented to relieve pressure in order for the furnace
pressure switch to operate properly.
CAUTION
Figure 49. Evaporator Coil Using a Common Drain
Figure 50. Condensate Trap with Optional Overow
Switch