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F50E DUCT MOUNTED ELECTRONIC AIR CLEANER
68-0072—5
19
NO
TO USE THIS CHART:
START
OFF
ON
YES
YES
REPLACE LIGHT/
SWITCH ASSEMBLY.
MAKE SURE ELECTRONIC
CELLS ARE CLEAN, DRY
AND PROPERLY INSTALLED.
TURN ON ELECTRONIC AIR
CLEANER AND SYSTEM
FAN.
CHECK NEON LIGHT ON
AIR CLEANER.
PUSH TEST BUTTON AND
LISTEN FOR SNAPPING
SOUND.
NO
PUSH TEST BUTTON
AND LISTEN FOR
SNAPPING SOUND.
TURN OFF AIR CLEANER
AND REMOVE CELLS .
CLOSE ACCESS DOOR
AND TURN ON AIR
CLEANER.
OFF
ON
1
1
CHECK FOR CORRECT INPUT
VOLTAGE ACROSS:
120V MODELS: P1 AND P2
TERMINALS ON POWER
SUPPLY
220/240 MODELS: QUICK-
CONNECT TERMINALS ON
POWER SUPPLY
TRANSFORMER.
INSPECT CELLS FOR:
•
•
•
•
BENT COLLECTOR
PLATES
BROKEN IONIZER
WIRES
DIRT ON INSULATORS
DAMAGED IONIZER
OR COLLECTOR
CONTACT TABS
YES
NO
YES
NO
FIX
WIRING.
REPAIR OR REPLACE
CELLS.
WITH OHMMETER,
CHECK FOR SHORT
BETWEEN:
•
•
CELL FRAME AND
IONIZER SECTION
CELL FRAME AND
COLLECTOR SECTION
CELL
SHORTED
INFINITE
RESISTANCE
REPLACE CELL.
CELL OK.
REPLACE COMPLETE
POWER SUPPLY
1
THE SNAPPING SOUND ON THE AIR CLEANER,
WITH A SOLID STATE POWER SUPPLY, IS
ABOUT HALF AS LOUD AS ON MODELS WITH
THE W919 POWER SUPPLY.
COMPONENTS ARE NOT FIELD REPLACEABLE.
2
M1347A
FOLLOW THE STEPS IN ORDER; DO NOT SKIP AROUND.
EACH TIME YOU ISOLATE AND FIX A PROBLEM, GO BACK TO START.
REPEAT ALL THE STEPS UNTIL THE AIR CLEANER CHECKS OUT OK.
1.
2.
3.
2
THIS STEP EXPOSES
DANGEROUSLY HIGH
VOLTAGE. ONLY A
QUALIFIED SERVICE
TECHNICIAN SHOULD
ATTEMPT THIS STEP.
WARNING
CHECK NEON LIGHT
ON AIR CLEANER.
ELECTRONIC AIR
CLEANER IS OK.
TROUBLESHOOTING F50E AIR CLEANERS WITHOUT SOLID STATE
PERFORMANCE INDICATOR TERMINALS ON POWER BOX
Fig. 34. Electrical troubleshooting procedure for F50E electronic air cleaners without a W8600E.
Neon Light
The NEON LIGHT is in the on-off switch. It is powered
through the power supply and is ON when the power supply
is working properly. See internal schematic, Fig. 36.
On models with the W8600E printed wiring board, the neon
light in the on-off switch indicates only that the air cleaner is
powered. See internal schematic, Fig. 36.
CHECK LED (air cleaners with W8600E)
The CHECK LED is on the W8600E. It lights to indicate the
following problems: excessive dirt loading (beyond that
required to activate the WASH LED), partial shorting of the
collector, continuous ionizer or collector arcing, power supply
failure, excessive ionizer current, or any condition causing a
major reduction in high voltage.