Lennox CBX25UHV Series Installation And Service Procedure page 18

3. Set unit so that it is sloped toward the drain pan end of
the unit (see figure 30).
4. The horizontal configuration is shown in figure 24.
AIR FLOW
KNOCKOUT
Figure 24. Left‐Hand Discharge Configuration
5. If the unit is suspended, the entire length of the cabinet
must be supported. If you use a chain or strap, use a
piece of angle iron or sheet metal attached to the unit
(either above or below) to support the length of the
cabinet. Use securing screws no longer than 1/2 inch
to avoid damaging the coil or filter. See figure 23. Use
sheet metal screws to connect the return and supply air
plenums as required.
RIGHT-HAND AIR DISCHARGE
For horizontal right-hand air discharge, the following field
modifications are required.
1. Remove and set aside blower and coil access covers.
2. Remove bracket(s) securing pan(s) to unit as
illustrated in figures 25 and 26.
REMOVE BRACKET
SECURING MAIN
DRAIN PAN TO UNIT.
Figure 25. Remove Main Drain Pan Mounting Bracket
(-018 through -036)
Drains
LEFT‐HAND DRAINS
Page 18
REMOVE BRACKETS
SECURING BOTH
DRAIN PANS TO
UNIT.
Figure 26. Remove Horizontal and Main Drain Pan
Mounting Brackets (-042 through -060)
3. Remove coil assembly, bottom drain pan and
horizontal drain pan as one assembly from the air
handler.
4. Move the horizontal drain pan to the opposite side of
the coil. Plug the drain holes located near the back of
the unit. Remove the plugs from the front drain pan
holes.
5. Re-install modified coil/drain pan assembly in air
handler in the same orientation as before (figures 27
and 28).
Figure 27. Install Main Drain Pan Mounting Bracket
(-018 through -036)
INSTALL BRACKET
SECURING MAIN
DRAIN PAN TO UNIT.