Operating instructions

SERVICE
The lollowing instructions
are intended lor
quali-
Iied service
personnel
only. Dangerotrs
line voltage
circuits are o<posed
during this
procedure.
Discon-
neci
power
before servicing unit.
MOTOR REPLACEMENT PROCEDURE
L Disconnect
power
{rom unit.
2. Open cell
access
door. Remove
cells,
pre{ilters,
and
grille
to
provide
access to motor.
3. Remove lan
blade
lrom
motor.
Disconnect lan
motor leads
at
disconnect
near motor
(or
at terminal block
on
earlier units).
Remove
4 screws holdinq motor
and bracket to
unit.
On earlier units it will
be necessary to install
a bracket
(included
in motor replacement
kit) in
place
ol the
cable
clamp. Plug
the electrical connector
into
this
bracket and route the wires
to the terminal
block.
Install
new motor and bracket, connect
electrical lines
and
replace lan,
grille,
prelilters
and cells.
8. Connect
power
and check
new motor operation.
POWER
SUPPLY
REPLACEMENT
PROGEDURE
f
.
Disconnect
power
lrom
unit.
2.
Dlsconnect
quick
connect terminols tom
power
supply,
Unplug
power
supply
wte hqmess.
3. Remove
4
screws
holdinq
power
supply
in
place.
(On
earlier units,
remove nuts and washers {rom
inside
ol cabinets.)
4. Install new
power
supply
5. Connect
line voltage wires to
power
supply with
plugrs,
Wlres wlth dtnll@ colors
go
togetber. Ned, con-
nect the
pink
highvoltqgew"bes
to the
oubide terminols
on the
contqct boqrd which
qre
mqrked L Attqch the
grey
high voltoge wires
to the irside
termincls morked
C.
Be
cerloin that
oll
wires
cse
connected
properly.
6. Reconnect
power
and test
power
supply
with test
button to
be sure unit is
operating
properly.
IONIZING
WIRE REPLACEMENT
The
fine
tungsten
ionizing
wires
in
the
charging
section
of the electronic
cell may break
or become
damaged.
Inspea the cell
from
the
upstream side after
washing
to
make
sure that none of the
wires
are
broken
or out
of
position.
During operation, a broken
or
de-
formed
wire
generally
causes
a
short
to
ground,
possibly
with visible
arcing or sparking.
This
condition,
or any
other short in the ionizing
section
of the cell,
will
cause
the indicator
light
to
go
out.
Broken
wires must be replaed
as
roon
ar
possible.
Remove
all
parts
of the broken
wire. lf neoessary. the
cell
may be temporarily
used with I wire
mrsring.
See
PARTS LIST
for
part
number
of the replacem.nr wlne
Wires come cut to length with eyelets
at each cnd
for
easy installation in the electronic cell.
I.
Use care to
avoid
damage to the spring connestor
or other
parts
of
the
cell during the installation.
2. Hook one end of the ionizing wire over the spring
connector at one end of the cell.
3. Hold the
opposite eyelet with a
needlenose
pliers
and
stretch the
wire
the length of
the cell. Depress the
opposite
spring
connector
and hook
the
eyelet
over it.
FIG. 8.!NSTALLATION OF NEW
IONIZING
WIRES.
ARCING
From
time
to time
you
may
hear a snapping
noise com-
ing
lrom the
electronic
air cleaner. This
arcing
occurs
when
the air cieaner
collects an unusually
large
particle,
when
cells
are wet, extraordinarily
dirty
or damaged.
If an unusual
amount
ol arcing
persists,
check lirst
to
determine
if the electronic
cells
need
washing.
look
also
Ior any
sign
ol
bent collector
plates
or broken ionizer
wlres.
II arcing
siill
occurs
when
cell is
clean and
dry, con-
sult
your
serviceman
or
dealer lor
repair.
5.
6.
11