507769-05G / 31-5000656
Page 30 of 55
Issue 2223
Condensate Piping
This unit is designed for either right or left side exit of
condensate piping in downflow applications. Refer to
Figure 40 for condensate trap locations.
NOTE:
If necessary the condensate trap may be installed
up to 5” 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 40) 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 45.
4.
Install drain trap using appropriate PVC fittings, glue
all joints. Glue the provided drain trap as shown in
Figure 45. Route the condensate line to an open drain.
Condensate line must maintain a 1/4” downward slope
from the furnace to the drain.
5. If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in Unit
Start-Up section.
Do Not
use copper tubing or existing copper condensate
lines for drain line.
CAUTION
Figure 40. Condensate Trap and Plug Locations
Trap
(same on
right side)
Plug
(same on left
side)
1-1/2 in.
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.
Figure 41. Condensate Trap Location
(shown with right side exit of condensation)
5’ max.
to drain
1” min.
2” max.
Trap can be installed a maximum
of 5ft. from furnace (*PVC only)
Field Provided Vent
1” min. 2” max. above
condensate drain.
*Piping from furnace must slope down a
minimum 1/4” per ft. toward trap
