Condensate Drain Connections - Trane BCHE Installation, Operation And Maintenance Manual

Installation Mechanical

Condensate Drain Connections

Note: It is the installer's responsibility to provide adequate
condensate piping to prevent potential water
damage to the equipment and/or building.
Size the main drain lines and trap them the same size as
the drain connection, which is 3/4-inch schedule 40 PVC,
1.050 inch O.D. on BCHE/BCVE blower coils. The size 24-
60 BCVE blower coils have a rubber internal trap that has a
1.050 inch I.D. that can be connected to 3/4-inch schedule
40 PVC.
If drain pan removal is required, make the main and
auxiliary drain connections with compression fittings.
Follow the procedure below to remove the drain pan.
1. Remove the opposite side coil access panel.
2. Disconnect drain lines.
3. Remove the sheet metal screw.
4. Remove screws that attach coil gusset to Z-bracket.
See Figure 42, p. 52 and
5. Pull out drain pan through the opposite side.
Figure 42. BCXE drain pan removal
52
Figure 43, p. 52.
Figure 43. BCXE drain pan removal
Screw
Drain Pan
Note: Prime drain traps to prevent the drain pan overflow.
Plug or trap the auxiliary connection to prevent air from
being drawn in and causing carryover.
All drain lines downstream of the trap must flow
continuously downhill. If segments of the line are routed
uphill, this can cause the drain line to become pressurized.
A pressurized drain line may cause the trap to back up into
the drain pan, causing overflow.
Z-Bracket
X
See Note 2
BCX-SVX002A-EN