Downflow Conversion Kit - Bosch DX Series Installation And Maintenance Manual

10 Unitary Air Handler DX and Hydronic Series
9. Re-install the blower and control box access
door in the upside down position and secure
with the screws that were removed in Step 1.
Hydronic heat units cannot be used in the down
flow position.

DOWNflOW CONvERSION KIt

Disassembly Instructions
1. Remove evaporator coil door and discard. The
door cannot be used in the downflow
configuration. Remove the new evaporator coil
door from the conversion kit box.
2. Remove the evaporator coil assembly with the
drain pan by sliding it out of the front of the unit
as shown in Figure 2.
3. Remove the 6 screws (3 on each side of the unit)
securing the evaporator coil rails. Unit is ready to
be reassembled in the downflow configuration.
1. Remove evaporator coil door and discard. The
door cannot be used in the downflow
configuration. Remove the new evaporator coil
door from the conversion kit box.
2. Remove the evaporator coil assembly with the
drain pan by sliding it out of the front of the unit
as shown in Figure 2.
3. Remove the 6 screws (3 on each side of the
unit) securing the evaporator coil rails. Unit is
ready to be reassembled in the downflow
configuration
figure 2. Evaporator Coil Disassembly for conversion to
downflow
Assembly Instructions
1. Invert the air handler 180° and reinstall the coil
support rails, just above the blower. Use the six
(6) screws that were removed in the
disassembly instructions.
6720220327
2. Slide the evaporator assembly back into the coil
3. Install the new evaporator coil door that was
figure 3. Evaporator Coil assembly after turning the air
handler 180° for downflow conversion
INStAllAtION ON COMbUStIblE
flOORING
Caution
Before installing the combustible floor base make
sure that there is a minimum of R-12 insulation
between the sheet metal and any wood or
combustible flooring. Refer to Figure 4 for typical
combustible floor base installation.
Subject to change without prior notice
Downflow Conversion Kit
section. Evaporator must be installed so it is
configured in the "A" position.
removed from the kit.
Combustible Floor Base MUST BE USED
when the unit is being installed on
combustible flooring. The unit cannot be
installed on carpeting.
Failure to use the combustible floor base
combustible flooring or installing the unit on
carpeting could result in a fire causing personnel
injury, property damage or loss of life.
Revised 11-11