Honeywell F50E Manual page 20

F50E DUCT MOUNTED ELECTRONIC AIR CLEANER
TROUBLESHOOTING F50E AIR CLEANERS WITH A W8600E
SOLID STATE PERFORMANCE INDICATOR AND AIR FLOW SWITCH
CORRECT
WIRING.
WIRING
NOT OK
CHECK WIRING BETWEEN
W8600E AND AIR CLEANER.
USE MAX NO. 18 4-WIRE
THERMOSTAT CABLE
CONNECTED 1 TO 1,
2 TO 2, 3 TO 3, AND 4 TO 4.
WIRING OK
REPLACE
4
W8600E.
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.
2 COMPONENTS ARE NOT FIELD REPLACEABLE.
3 W8600E HAS THREE LIGHT-EMITTING DIODES (LEDS):
ON, WASH, AND CHECK.
4
W8600E OPERATION CAN BE CHECKED SEPARATELY.
SEE W8600E INSTRUCTIONS.
Fig. 35. Electrical troubleshooting procedure for F50E electronic air cleaners with a
Test Button
The TEST BUTTON is near the bottom of the access door.
When pushed, it shorts from a hot collector plate to ground.
See internal schematic, Fig. 36. The resulting arcing sound
indicates that high voltage is being supplied to the collector.
The solid state power supply controls current flow to the
collector, so the arcing sound is only about half as loud as the
sound on air cleaners with W919-style power supplies. On air
cleaners with a W8600E, the CHECK LED comes on when
the test button is pushed.
68-0072—5
START
MAKE SURE ELECTRONIC
CELLS ARE CLEAN, DRY
AND PROPERLY INSTALLED.
MAKE SURE PREFILTERS
ARE IN SLOT ON FURNACE
SIDE OF CELLS.
TURN ON ELECTRONIC AIR
CLEANER AND SYSTEM
FAN.
OFF
CHECK NEON LIGHT.
ON
PUSH TEST BUTTON AND
NO
LISTEN FOR SNAPPING
1
SOUND.
YES
OFF
CHECK ON LED IN
3
W8600E
ON
OFF
OPEN ACCESS DOOR.
CHECK LED IN W8600E
3
SHOULD COME ON
ON
TURN OFF AIR CLEANER
AND REMOVE CELLS
ONLY (NOT PREFILTERS).
CLOSE ACCESS DOOR
AND TURN ON AIR CLEANER.
WASH LED IN W8600E
3
SHOULD COME ON.
OFF
ON
ELECTRONIC AIR CLEANER
AND W8600E ARE OK.
W8600E and solid state air flow switch.
TO USE THIS CHART:
1. FOLLOW THE STEPS IN ORDER; DO NOT SKIP AROUND.
2. EACH TIME YOU ISOLATE AND FIX A PROBLEM, GO BACK TO START.
3. REPEAT ALL THE STEPS UNTIL THE AIR CLEANER CHECKS OUT OK.
PUSH TEST BUTTON
AND LISTEN FOR
1
YES
SNAPPING SOUND.
NO
TURN OFF AIR CLEANER
AND REMOVE CELLS
ONLY (NOT PREFILTERS).
CLOSE ACCESS DOOR
AND TURN ON CHECK FOR CORRECT INPUT
AIR CLEANER.
VOLTAGE ACROSS:
120V MODELS: P1 AND P2
TERMINALS ON POWER
OFF
SUPPLY
CHECK NEON LIGHT.
220/240 MODELS: QUICK-
CONNECT TERMINALS ON
ON
POWER SUPPLY
INSPECT CELLS FOR: TRANSFORMER.
• BENT COLLECTOR
PLATES
BROKEN IONIZER
•
WIRES
FIX
DIRT ON INSULATORS
•
WIRING.
DAMAGED IONIZER
•
OR COLLECTOR
TURN OFF AIR CLEANER,
CONTACT TABS
REPLACE CELLS AND
DISCONNECT FOUR W8600E
YES
LEADS AT AIR CLEANER.
REPLACE ACCESS DOOR.
REPAIR OR
REPLACE
NO
CELLS.
TURN ON AIR CLEANER. PUSH
TEST BUTTON AND LISTEN
WITH OHMMETER,
FOR SNAPPING SOUND.
CHECK FOR SHORT
BETWEEN:
• CELL FRAME AND
IONIZER SECTION
REPLACE
• CELL FRAME AND
POWER
COLLECTOR SECTION
BOX .
CELL
SHORTED
INFINITE
REPLACE
RESISTANCE
AIR CLEANER OK. TURN OFF
CELL.
AIR CLEANER AND RECONNECT
W8600E LEADS 1 TO 1,
2 TO 2, 3 TO 3, AND 4 TO 4.
CELL OK.
Power Supply Problem
CAUTION
Electric Shock Hazard.
Can cause personal injury.
Always turn off power and remove access door before
removing power box or its cover.
20
REPLACE LIGHT/
SWITCH ASSEMBLY.
WARNING
THIS STEP EXPOSES
DANGEROUSLY HIGH
VOLTAGE. ONLY A
QUALIFIED SERVICE
TECHNICIAN SHOULD
ATTEMPT THIS STEP.
NO
YES
1
NO
YES
2
M2002D