Trane ACONT900AC43UA Service Manual page 260

Electronic Air Cleaners
assemble the Field Charger.
Step 5
Push a block of styrofoam down over the Field Charger
Pin.
Step 7
Use the styrofoam block to clean the faceplate open-
ing edges.
Step 8
Repeat steps 5, 6 and 7 for each Field Charger Pin.
Step 9
Put Field Charger back into the Air Cleaner frame and
bend the locking tabs back up against the Field
Charger.
Testing The Power Door
High Voltage Power Supply
Tools Required:
A High voltage Probe and a compatible Volt Meter or
AC - A 26
a Screwdriver, Jumper Wire with Alligator Clips on each
end, tape and dry paper.
Testing With A High Voltage Probe
Step 1
Turn off the Air Cleaner and remove the Power Door.
Step 2
Form a piece of wire that will go through the interlock
switch opening and depress the interlock switch blade.
Tape it in place.
High Voltage is present for this test.
Step 3
Turn on the Air Cleaner, and then enter the Set-Up
mode by pushing and holding both the Power button
and the Reset button for 5 [6] seconds. The bar graph
display will show the Air Cleaners current settings
(see Set-Up Mode instructions on page A16). The top
three Red LEDs should be on for this test. The three
Red LEDs being on indicates that the Air Cleaner
Power level setting is set at the 9.6 KV position. If all
three are NOT on, press the Power button three times
and then press the Reset button until you get all three
Red LEDs on. Now press and hold both the Power
button and the Reset button for five seconds then re-
lease these buttons to leave the Set-Up mode. The
WARNING