Allied 95G1DFE, Installation Instructions Manual

Page: 27 / 53

507277-02 Page 27 of 52 Issue 1621
Condensate Piping
This unit is designed for either right or left side exit of
condensate piping in downflow applications. Refer to
Figure 38 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 38) 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 43.
4. Install drain trap using appropriate PVC fittings, glue
all joints. Glue the provided drain trap as shown in
Figure 43. 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.
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:
6 ft. (1.8 m) - kit no. 26K68; 24 ft. (7.3 m) - kit no. 26K69;
and 50 ft. (15.2 m) - kit no. 26K70.
Do Not use copper tubing or existing copper condensate
lines for drain line.
CAUTION
Figure 38
Condensate Trap and Plug Locations
Figure 39
Condensate Trap Location
(shown with right side exit of condensation)