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Figure 48. Evaporator Coil Using a Separate Drain
Figure 50. Condensate Trap with Optional Overflow
Switch
CAUTION
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.
Figure 49. Evaporator Coil Using a Common Drain
508391-01
Issue 2327
Page 31 of 52
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