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TOOLS AND EQUIPMENT
Troubleshooting the F52 can be accomplished with
only a few tools.
ө Screwdrivers—long shank, plastic or rubber handles;
two required for some arc checks.
e Needlenose pliers—for stringing ionizing wires.
eTest
Meter—Honeywell
W869
Electronic
Air
Cleaner Test Meter, or
eSimpson 260 with 25 kV dc probe.
e Soldering iron for replacing components.
€ Neon test lamp for line voltage.
€ A spare silicon diode.
TROUBLESHOOTING
PROCEDURE
Most of the troubleshooting steps can be performed
by observing the indicator light in the ON-OFF switch.
This light is powered by the resonating winding on the
high voltage transformer and is ON whenever the high
voltage transformer is working properly.
The following troubleshooting procedure has been
designed to speed the serviceman's
work
and insure
that any malfunction in the F52 electronic air cleaner
is quickly detected and properly repaired.
This procedure is outlined in the flow chart below.
A complete
description is provided on the following
pages.
The troubleshooting procedure description is divided
into 2 sections:
l. DIAGNOSTIC
CHECKS-The
numbered
steps
correspond to the numbered steps on the troubleshooting
flow chart. Follow this sequence of checks to locate
the cause of a failure within the air cleaner.
2. COMPONENT
CHECKS-Explains how to locate
a faulty component
within an assembly,
or how to
prove a component good or bad.
DIAGNOSTIC CHECKS
1. ENERGIZE ELECTRONIC AIR CLEANER
a. Be sure that the electronic cells and protective
Screen are clean, dry, and properly installed in the
air cleaner.
. Energize the electronic air cleaner.
—Put F52 switch in ON position.
—Turn on system fan.
. Check for indicator light operation.
—If light is off, there is a failure in the electronic
air cleaner—go to step 3.
—If the light is on, go to step 2.
ELECTRICAL TROUBLESHOOTING
CHECK
ELECTRONIC
CELLS
CORRECT
ELECTRONIC
CLEANER
WORKING
PROPERLY
CHECK
POWER SOURCE
AND WIRING
CHECK VOLTAGE
DOUBLER
CIRCUIT
INCORRECT
VOLTAGE
CHECK HIGH
VOLTAGE
TRANSFORMER
lonizer Voltage (Y to Ground)
No Cells — 8,500V dc minimum.
With Cells — 7,500 to 8,500У ас.
Collector Voltage (R to Ground)
Page
13
No Cells — 3,500V dc minimum.
With Cells — 3,000V dc minimum.
60-2407
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