Honeywell F50F Manual page 18

F50F
ELECTRICAL TROUBLESHOOTING
Fig. 23—Troubleshooting air cleaners with solid-state performance indicator.
CORRECT
WIRING.
WIRING
NOT OK
CHECK WIRING BETWEEN
W8600E AND AIR CLEANER.
USE MAX. NO. 18 4-WIRE
THERMOSTAT CABLE
CONNECTED 1(G) TO 1(G),
2(Y) TO 2(Y), 3(R) TO 3(R),
AND 4(B) TO 4(B).
WIRING OK
REPLACE
W8600E.
1
FOR POWER SUPPLY REPLACEMENT, SEE FORM 69-0776.
2
W8600E HAS THREE LIGHT-EMITTING DIODES (LEDS):
ON, WASH, AND CHECK.
3
W8600E OPERATION CAN BE CHECKED SEPARATELY.
SEE W8600E INSTRUCTIONS.
68-0137B—2
START
MAKE SURE ELECTRONIC
CELL(S) ARE CLEAN, DRY
AND PROPERLY INSTALLED.
MAKE SURE PREFILTER(S)
ARE IN CABINET SLOT
FARTHEST FROM FURNACE.
TURN ON ELECTRONIC AIR
CLEANER AND SYSTEM
FAN.
CHECK NEON LIGHT.
ON
PUSH TEST BUTTON AND
LISTEN FOR SNAPPING
SOUND.
YES
OFF
CHECK ON LED IN
W8600E
ON
OFF
DEPRESS AND HOLD DOWN
TEST BUTTON. CHECK
LED IN W8600E
SHOULD COME ON
ON
3
TURN OFF AIR CLEANER
AND REMOVE CELL(S)
ONLY (NOT PREFILTERS).
CLOSE ACCESS DOOR
AND TURN ON AIR CLEANER.
WASH LED IN W8600E
SHOULD COME ON.
OFF
ON
ELECTRONIC AIR CLEANER
AND W8600E ARE OK.
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.
THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL
ONLY. TO REDUCE RISK OF ELECTRIC SHOCK, DO NOT PERFORM ANY
SERVICING OTHER THAN CONTAINED IN THE OPERATING INSTRUCTIONS
UNLESS YOU ARE QUALIFIED TO DO SO.
PUSH TEST BUTTON
OFF
AND LISTEN FOR
SNAPPING SOUND.
NO
NO
TURN OFF AIR CLEANER
AND REMOVE CELL(S)
ONLY (NOT PREFILTERS).
CLOSE ACCESS DOOR
AND TURN ON
AIR CLEANER.
2
CHECK NEON LIGHT.
ON
2
INSPECT CELL(S) FOR:
BENT COLLECTOR
•
PLATES
• BROKEN IONIZER
WIRES
• DIRT ON INSULATORS
DAMAGED IONIZER
•
OR COLLECTOR
CONTACT TABS
YES
REPAIR OR
REPLACE
NO
2
CELL(S).
WITH OHMMETER,
CHECK FOR SHORT
BETWEEN:
• CELL FRAME AND
IONIZER SECTION
• CELL FRAME AND
COLLECTOR SECTION
CELL
SHORTED
INFINITE
REPLACE
RESISTANCE
CELL.
CELL OK.
18
WARNING
RISK OF ELECTRIC SHOCK
YES
REPLACE LIGHT/
SWITCH ASSEMBLY.
WARNING
THIS STEP EXPOSES
DANGEROUSLY HIGH
VOLTAGE. ONLY A
QUALIFIED SERVICE
TECHNICIAN SHOULD
OFF
ATTEMPT THIS STEP.
CHECK FOR CORRECT INPUT
VOLTAGE ACROSS P1 AND P2
TERMINALS ON POWER SUPPLY.
NO
YES
FIX
WIRING.
TURN OFF AIR CLEANER,
REPLACE CELLS(S) AND
DISCONNECT FOUR W8600E
LEADS AT AIR CLEANER.
REPLACE ACCESS DOOR.
TURN ON AIR CLEANER. PUSH
TEST BUTTON AND LISTEN
FOR SNAPPING SOUND.
NO
YES
REPLACE
POWER
1
BOX OR
POWER SUPPLY.
AIR CLEANER OK. TURN OFF
AIR CLEANER AND RECONNECT
W8600E LEADS 1(G) TO 1(G),
2(Y) TO 2(Y), 3(R) TO 3(R), AND
4(B) TO 4(B).
M5609C