Operating instructions

MOTOR
MAINTENANCE
PROCEDURE
The manufacturer
of the
motor
used in the C-12
necommends
oiling
of the
motor at
least
once a
year.
The following
procedure
can
be followed:
o
De-energize
the
unit.
.
Remove the
prefilters
and
cells from the cabinet.
.
Remove the fan
blade from the
motor shaft.*
.
Unscrew the
four screws holding the
motor mounting
plate,
and
lower the motor.
THE
WIRING NEED NOT
BE
DISCONNECTED.
r
There are lwo
oil holes
on the motor:
1. Near the
motor shaft.
2. On
the end
opposite the
motor shaft
near the
bearing
plate.
o
Five drops
of SAE
20
weiSht
nondetergent oil
or
electric
motor
oil in each
hole
is
adequate.
.
Wipe off excess
oil
which
misses or
runs out of
oil
holes.
r
Replace
motor
fan blade,
cells and
pre-filters
in the
unit.
.
Re€nergize
and
check out
to ensure
proper
operation'
*Fan
blade
need not be
removed
if serviceman has a
hypodermic-type
needle available
for insertion
of
oil
through oil
hole
plug.
1 cc is
approximately
five
drops.
ELECTRICAL
TROUBLESHOOTING
TROUBLESHOOTI NG
PROCEDUR
E
The following troubleshooting
proc€dure
has
been
designed
to
speed the serviceman's
work
and
insure
that
any
rnalfunction
in the'electronic
air
cleaner
is
quickly
detected
and
properly
repaired.
Most
of the
troubleshooting
steps
can
be
performed
by
observing
the indicator
light. This
light is
powered
by
the resonating
winding
on
the
high
voluge
trans-
former and
is
ON
whenever
the high
voltage
transformer
is working
properly.
This
procedure
is outlined
in the
llow chart below.
A com-
plete
description
is
provided
on
the lollowing
pages'
The
troubleshooting
procedi.rre
description
is
divide,l
into
2 sections:
1.
DIAGNOSTIC
CHECKS-The
numbered
stePs
correspond
to
the numbered
steps on
the
uoubleshooting
flow chart.
Follow
this sequence
of checks
to locate
the
cause of
a
failure within
the air cleaner.
2. COMPONENT
CHECKS-Explains
how
to Iocate
a
faulty
component
within
an
assembly, or how
to
prove
a comPonent
good
or bad.
TOOLS AND
EOUIPMENT
Troubleshooting
the Cl2
can
be
accomplished
with
only a
few tools.
o
Screwdrivers-long
shank,
plastic
or
rubber handles;
2 required
for
some
arc checks.
o Needlenose
pliers-for stringing
ionizing
wires.
o
Test
Meter-Honeywell
W859
Electronic
Air
Cleaner
Test
Meter,
or
o
Simpson
260
with
25 kV dc
Probe.
o
Soldering
iron for
replacing components.
o Neon
test lamp
for line voltage.
.
A
spare
silicon diode.
The
lollowing
instructions
are
intended
{or
quali-
fied service
personnel
only.
Dangerous
line voltage
circuits
are
exposed during
this
procedure. Discon-
nect
power
before
servicing
unit.
ETECTRICAL
TROUB
LESHOOTITUG
LIGHI
o|
IONIZER VOLTAGE
(Y
TO GROUND)
NO CELLS-8,5(X)V
DC
MINIMUM.
wrTH cELLS-7,500
TO
8,500v Dc.
COLLECTOR
VOLTAGE {R
TO GROUND}
NO CELLS-3,sOOV
DC
MINIMUM.
WITH CELLS-3,OOOV
DC
MINIMUM.
OPEFAIION
+
cT-----]
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12