Install Instructions

PS1201C, PS2401C, PS1202C REPLACEMENT POWER SUPPLY KITS FOR ELECTRONIC AIR CLEANERS
69-1138—03 10
Fig. 18. Components of replacement power supply.
With all components in place, turn on the air cleaner
switch and energize the system blower. Check the
following points of operation:
1. Be sure the neon light (not provided on F58) is on.
2. Turn off the system blower. The neon light should
go off. The neon light comes on to show that the air
cleaner is energized and the high voltage power
supply is working properly.
3. Turn the system blower back on. With the air
cleaner energized, push the test button. A snapping
sound indicates that collector voltage is available.
4. With a multispeed blower, repeat steps 1 through 3
for each fan speed.
5. With a meter, check the ionizer voltage between P3
(red lead) and ground, and the collector voltage
between P4 (black lead) and ground. The correct
voltages are printed on the label inside the access
door.
6. If operation is not as described, refer to Trouble-
shooting and Service section.
TROUBLESHOOTING AND
SERVICE
WARNING
Electric Shock Hazard
Can cause personal injury
or equipment damage.
The following procedures expose hazardous live
parts. Disconnect power supply between checks
and proceed carefully.
CAUTION
The following instructions are for use by qualified
personnel only.
Fig. 19. Mounting plate.
Tools and Equipment
Troubleshooting the electronic air cleaner requires:
• Needlenose pliers for stringing ionizer wires and
inserting edge connectors.
• Test meter with 15 kVdc probe or equivalent.
The electronic air cleaner Troubleshooting charts, Figs. 19
and 20, show how to quickly isolate a problem in the air
cleaner. Although a meter is needed for some steps, see
Fig. 21, the primary diagnostic tools are the neon light and
the test button.
Test Button
When pushed, the test button shorts from a hot collector
plate to ground. See internal schematics, Figs. 8 through
15. The resulting arcing sound indicates that high voltage
is being supplied to the collector. The solid state power
supply controls current flow to the collector so the arcing
sound is only about half as loud as the sound on air
cleaners with W919-style power supplies.
M33121
J4
J4
J4 SHUNT
IN POSITION
TO DISABLE
NEON LIGHT
OUTPUT
J4 SHUNT
IN POSITION
TO ENABLE
NEON LIGHT
OUTPUT
J8 SHUNT IN OZONE
REDUCED POSITION
J8 SHUNT IN
NORMAL POSITION
J8
J8
P4
P1
P2
J3
J4
J8
P3
2
.1mA
1
.65mA
1
.29mA
1.05mA
0.9mA
0.25mA
P5
T1
U4
8150V
7500V
P8
E6
E4
E5
E3
E1
E2
J1
POWER SUPPLY
M33122