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An alternate method for controlling the air cleaner
operation is to install an F859-0381 Air Flow Switch/
Harness Kit (available separately) that switches power
to the air cleaner when airflow is detected.
NOTE: The air cleaner should not be operating un-
less the furnace blower is on.
11. With the cabinet Installed, reinstall pre-filter(s) and
collecting cell(s) (Figure 20).
NOTE: The contact button and handles on the cell
must be facing you and ionizing wires must be on the
air intake side.
12. Install the power pack as follows:
Engage the lip on lower inside edge of power pack in
the flange on cabinet and carefully close the power
pack, making sure that the electrical connector prongs
on the power pack enter the slots in the socket on
cabinet. When the power pack is fully in place, en-
gage the latch and snap it closed.
OPERATION
1. With the 120 VAC power turned on at the circuit
breaker for the furnace, push the air cleaner ON-OFF
switch to the “ON” position (Figure 21).
2. With the furnace blower running, the air cleaner will
be operating. An arcing or “snapping” sound may be
heard. This will occur occasionally, however the unit
is operating properly.
3. With the furnace blower running, the Operating Light
should be ON. If the Operating Light is not ON this
signifies that the cells need washing, or that trouble
exists in the unit.
If, after washing the cells, the Operating Light stays off,
the cell could be wet, improperly placed in the cabinet or
may need servicing.
NOTE: An occasional flicker of the light accompanied by
harmless sparking or snapping noise may occur. This is
caused by trapping large particles of dirt. If arcing is
continuous, the cells should be washed or checked for
service problems see Basic UST Service Guide.
For maximum efficiency your air cleaner cell(s) and pre-
filter(s) should be inspected once a month and cleaned
when necessary. Cleaning will usually be required every
one to three months, depending upon the particular
household circumstances. When cleaning is required the
following procedure should be used:
CLEANING THE CELLS
1. Turn the air moving system “OFF.”
2. Push the ON-OFF switch on the power pack to the
“OFF” position (Figure 21). Wait 15 seconds and both
the power pack and the collecting cell(s) will be
automatically discharged.
Operating
Light
On-Off
Switch
Figure 21
Cabinet
Pre-Filters
Handle
Contact
Button
Contact
Button
Collecting Cells
Power Pack
Figure 20
MAINTENANCE AND
WASHING
CAUTION
!
CABINET AND CELLS MAY CON-
TAIN SHARP EDGES.
Use care when servicing unit or han-
dling cells.
Failure to do so could result in mi-
nor personal injury.