Trane ACONT900AC43UA Service Manual page 246

Electronic Air Cleaners
with the air cleaner onto the IFC platform where the
35VA transformer was previously located. Use the
sheet metal screws supplied with the air cleaner to
mount the 50VA transformer. Reconnect the 115V and
24V wires that were connected to the 35VA transformer
onto the 50 VA transformer.
STEP 6
Connect Red stripped wire to "R" terminal on the
furnace control board.
STEP 7
Connect Blue stripped wire to "B" terminal on the
furnace control board.
STEP 8
Connect Brown stripped wire to "D" terminal on the
furnace control board.
Figure/Diagram for Electrical Connections To
A Communicating System Furnace
AC - A 12
STEP 9
Attach the black stripped wire from the air cleaner
wiring harness directly to ground with a screw in the
chassis.
STEP 10
The green and white wires on the air cleaning wiring
harness are unused in this application and should be
insulated.
STEP 11
Replace door on furnace.
STEP 12
Reconnect electrical power to the furnace.
STEP 13
Check both furnace and air cleaner operation per the
furnace and air cleaner installer guides.