# 47860A005
Page 17
6. From the tee, connect the drain to disposal area. The
top of the tee must be left open for proper condensate
drainage. The open end of the tee must be oriented
so that condensate does not run out of the opening.
7. Connect one end of 72" vinyl hose (supplied) to 3/8"
barbed fitting of the 2" x 2" x 1/2" tee in vent and the
other end to 3/8" barbed fitting on drain trap assembly.
Horizontal Installation – Tight Clearance Below Unit
In certain horizontal installations, clearance between unit
and drain pan beneath unit may be limited. In these applica-
tions, an alternate method may be used to install the
condensate drain trap assembly. Using two 90° elbows (field
supplied), bring condensate trap out to side of unit beyond
drain pan (see Figure 26). After trap assembly has been
attached using this method, follow proper instructions on the
previous pages for completing condensate drain installation.
Pressure Switch Connection
Upflow Installation
The unit is shipped from the manufacturer with a black
hose connected to the pressure switch. The other end of
Figure 25
Completing Condensate
Drain Installation
3/4 Tee
"
3/8 Vinyl Hose
(supplied)
"
Be sure to avoid double-trapping the vinyl hose.
Hose must be installed as shown.
the hose must be connected to the flue pan (see Figure
27). Remove and discard the plastic cap plug from 1/4" port
on the flue pan and connect the hose to the port.
Figure 26
Condensate Drain Trap Installation –
Tight Clearance Below Unit
Do not install trap assembly any farther than 10" from
the unit. The pressure switch and vent hoses must be
able to reach the barbed fittings on the trap assembly.
Pressure Switch Connection
Upflow Installation
Figure 27
Black Hose
0.10 W.C.
Pressure Switch
"
To avoid property damage caused by conden-
sate drain blockage, install a field-fabricated
auxiliary drain pan with a separate drain line to
the outside under the entire furnace and drain
system, including open vent tees.
CAUTION
