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CAUTION
Do not use copper tubing or existing copper condensate
lines for drain line.
1.
If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in the
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. If this is not possible, a heat cable kit may be used
on the condensate trap and line. Heating cable kit is
available in various lengths.
Figure 40. Evaporator Coil Using a Separate Drain
31-5000727 Rev. 0
Figure 38. Evaporator Coil Using a Common Drain
From Evaporator Coil
Optional
Overflow Switch
Figure 39. Condensate Trap With Optional Overflow
Page 37
Field Provided Vent
1" min. 2" max. above
condensate drain.
Furnace Condensate
Drain Condensate
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