Trane UHMB060ACV3VB Installer's Manual page 33

Downflow Vertical Furnace -
RTV silicon sealant to connect the fitting to the trap for
ease of removal when cleaning the trap.
For left side drain a 1/2" slip PVC fitting is needed. See
Fig 45.
To change to a right side drain, remove the drain lines
from the trap, rotate the trap 180° so it exits to the right,
then reconnect the lines. Start with a 1/2" 90° CPVC
street elbow connected to the trap using RTV silicon
sealant. Run 1/2" CPVC pipe to a CPVC elbow. Run 1/2"
CPVC pipe from the elbow out through the right side
knock-out. See Figure 46.
%
Left
side
DOWNFLOW (VERTICAL)
DOWNFLOW
(VERTICAL)
HORIZONTAL APPLICATIONS
Upflow and Downflow Horizontal Furnaces - See
Figures 47 and 48. All horizontal applications are left side
only. It is always recommended that the auxiliary drain
pan be installed under a horizontally installed evaporator
and/or 95% Gas Furnace. Connect the auxiliary drain pan
to a separate drain line (no trap is needed in this line).
Downflow furnace - Use
Use CPVC tubing from Trap outlet,
over burner box to cabinet exit
The furnace trap must be repositioned to the exterior of
the cabinet. Remove the trap from its present location
and reposition the trap outside of the unit, through the
long circular hole, next to the secondary recuperative cell.
Remove the larger drain line (from the secondary cell)
and trim to fit between the secondary cell and the new
trap location. On upflow units, plug the hole in the blower
deck where the tube went through with factory supplied
cap.
Remove the hose from the induced blower and reposition
into the other drain tap of the inducer, which is located
90° clockwise around the inducer. Move the cap from that
drain tap to the unused drain tap. On upflow units, plug
the hole in the blower deck where the tube went through
with factory supplied cap.
^
UPFLOW HORIZONTAL 21" & 24" UNITS
Right
side
UPFLOW HORIZONTAL 17" UNITS
18-CD30D1-12
Installer's Guide
(LEFT SIDE ONLY)
Use Inducer Drain
hose without
extension
(LEFT SIDE ONLY)
&
Use exten-
sion hose
here
*
33