Allied A93UH1D - Condensate Piping; Condensate Trap and Plug Locations

507270-03Page 34 of 60 Issue 1621
NOTE: If necessary the condensate trap may be installed
up to 5’ away from the furnace. Use PVC pipe to connect
trap to furnace condensate outlet. 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, eld-provided ttings and length
of PVC pipe required to reach available drain.
2. Use a large at head screw driver or an 1/2” drive socket
extension and remove plug (Figure 48) from the cold
end header box at the appropriate location on the side
of the unit. Install provided 3/4 NPT street elbow tting
into cold end header box. Use Teon 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 55.
4. Install drain trap using appropriate PVC ttings, glue
all joints. Glue the provided drain trap as shown in
Figure 55. Route the condensate line to an open drain.
Condensate line must maintain a 1/4” downward slope
from the furnace to the drain.
Do not use copper tubing or existing copper condensate
lines for drain line.
CAUTION
Condensate Piping
This unit is designed for either right or left side exit of
condensate piping in upow applications. In horizontal
applications, the condensate trap must extend below the
unit. An 8” service clearance is required for the condensate
trap.
Refer to Figures 48 and 49 for condensate trap locations.
Figure 55 shows trap assembly using 1/2” PVC or 3/4” PVC.
5. Install eld provided vent on trap assembly as shown
in Figures 49 through 54. Trap must extend at least
1” above the furnace condensate drain connection in
upow applications and 4-1/2” above the bottom of the
cabinet in horizontal applications.
6. If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in Unit
Start-Up section.
Figure 48