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Condensate Piping
This unit is designed for either right or left side exit of
condensate piping. Refer to Figure 36 and Figure 37 for
condensate trap locations.
NOTE: If necessary, the condensate trap may be installed
up to 5 ft. away, using PVC pipe, from the furnace. Piping
from furnace must slope down a minimum of 1/4" per ft.
toward trap.
1.
Determine which side condensate piping will exit the
unit, location of trap, field-provided fittings and length
of PVC pipe required to reach available drain.
2.
Use a large flat head screw driver or a 1/2" drive
socket extension and remove plug (Figure 36) from
the cold end header box at the appropriate location
on the side of the unit. Install provided 3/4 NPT street
elbow fitting into cold end header box. Use Teflon tape
or appropriate pipe dope.
3.
Install the cap over the clean out opening at the base
of the trap. Secure with clamp. See Figure 41.
Figure 36. Condensate Trap and Plug Locations
4.
Install drain trap using appropriate PVC fittings, glue
all joints. Glue the provided drain trap as shown in
Figure 38. Route the condensate line to an open drain.
5.
Figure 39 shows the furnace and evaporator coil
using a separate drain. If necessary the condensate
line from the furnace and evaporator coil can drain
together. See Figure 40. The field provided vent must
be minimum 1" to a maximum 2" length above the
condensate drain outlet connection.
507029-05
6.
If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in Unit
Start-Up section.
NOTE: Vinyl tubing may be used for condensate drain.
Tubing must be 1-1/4" OD X 1" ID and should be attached
to the drain on the trap using a hose clamp.
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. Heat cable kit is available in
various lengths: 6 ft. (1.8 m) - Kit No. 26K68 and 24 ft. (7.3
m) - Kit No. 26K69.
Figure 37. Condensate Trap Locations
(Unit shown with right side exit of condensation)
Figure 38. Condensate Trap with Optional Overflow
Issue 2241
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