Page 20
Condensate Piping
This unit is designed for either right- or left-side exit of con-
densate piping in either upflow or downflow applications;
however, it must be installed on the same side of the unit as
the exhaust piping. In horizontal applications, the conden-
sate trap should extend below the unit. A 140mm
(5−1/2−inch) service clearance is required for the conden-
sate trap. Refer to figure 26 for condensate trap locations.
FIGURE 26
CONDENSATE TRAP LOCATIONS
(Unit shown in upflow position)
Horizontal
left and
optional
downflow
Horizontal
right and
optional
downflow
Optional
upflow
Optional
upflow
NOTE − In upflow applications where side return
air filter is installed on same side as the conden-
sate trap, filter rack must be installed beyond
condensate trap to avoid interference.
1 − Determine which side condensate piping will exit the
unit. Remove plugs from the condensate collar at the
appropriate location on the side of the unit.
NOTE − The condensate trap is factory−shipped
with two rubber O−rings and two rubber clean−out
caps installed. Check to make sure that these
items are in place before installing the trap assem-
bly.
2 − Install condensate trap onto the condensate collar.
Use provided HI/LO screws to secure two upper
flanges of the trap to the collar. Use provided sheet
metal screw to secure bottom trap flange to side of
unit. See figure 27.
NOTE − In upflow and downflow applications, con-
densate trap must be installed on the same side as
exhaust piping.
3 − Glue the field−provided coupling or pipe to the trap.
Install a tee and vent pipe near the trap.
NOTE − The condensate trap drain stubs (both sides)
have an outer diameter which will accept a standard
19mm (3/4") PVC coupling. The inner diameter of
each stub will accept standard 13mm (1/2") diameter
PVC pipe.
NOTE − Vinyl tubing may be used for condensate
drain. Tubing must be 32mmOD X 25mm ID (1−1/4"
OD X 1" ID) and should be attached to the drain stubs
on the trap using a hose clamp.
4 − Glue the field−provided drain line to the tee. Route the
drain line to an open drain. As an alternate, clear vinyl
tubing may be used to drain condensate away from
the trap. Secure the vinyl tubing to the drain stubs on
the trap using a hose clamp. Do not overtighten the
hose clamp.
Condensate line must be sloped downward away from
condensate trap to drain. If drain level is above con-
densate trap, condensate pump must be used.
CAUTION
Do
not use copper tubing or existing copper
condensate lines for drain line.
5 − If unit will be started immediately upon completion of
installation, prime trap per procedure outlined in Unit
Start−Up section.
6 − Glue the provided cap onto the unused condensate
drain line stub.
CONDENSATE ASSEMBLY
FIGURE 27
COUPLING
CAP
CONDENSATE TRAP
NIPPLE
NIPPLE
TEE
VENT
CLEAN−OUT ACCESS
(both sides)
HI/LO SCREWS
(DO NOT use power
driver. Hand−tighten
using screw driver.)
SCREW
O−RINGS
