Air Cleaner Manual
F57A,B FLUSH-MOUNT COMMERCIAL ELECTRONIC AIR CLEANER
68-0083-9 Revised 11-08
16
START
LED ON/FAN ON
NO
YES
YES
YES
NO
DAMAGED
"ON" LED OFF/FAN OFF
"ON" LED ON/FAN OFF
"ON" LED OFF/FAN ON
NO
NO
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
FAN
OFF
FAN
ON
YES
YES
CELL
SHORTED
INFINITE RESISTANCE
NO
YES
YES
ELECTRONIC COMPONENTS ON POWER SUPPLY BOARDS ARE
NOT FIELD REPLACEABLE. ATTEMPTED SERVICE WILL DAMAGE
BOARDS . IF TROUBLESHOOTING INDICATES A POWER SUPPLY
PROBLEM, REPLACE THE ENTIRE POWER SUPPLY ASSEMBLY.
TO USE THIS CHART:
1. FOLLOW THE STEPS IN THE EXACT SEQUENTIAL ORDER.
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.
NO
NO
MAKE SURE CELLS
ARE CLEAN, DRY, AND
PROPERLY INSTALLED.
CLOSE COVER OR
DEFEAT INTERLOCK.
TURN ON AIR
CLEANER . CHECK
FAN OPERATION AT
LO, MED, HI SPEEDS.
OBSERVE "ON'' LED.
PUSH TEST BUTTON.
LISTEN FOR
SNAPPING SOUND.
HOLD DOWN TEST
BUTTON. IS
"CHECK" LED LIT?
RELEASE TEST
BUTTON. IS
"CHECK" LED LIT?
IS "WASH" LED LIT?
TURN OFF AIR
CLEANER. SHORT
IONIZER TO FRAME
WITH TEST LEAD.
TURN ON AIR
CLEANER. IS
"WASH" LED LIT?
CLEAN CELLS,
WIPING IONIZER
WIRES. INSPECT
CELLS FOR
DAMAGED IONIZER
CONTACTS.
REPLACE OR
REPAIR CELLS.
REMOVE CELLS. IS
"WASH" LED LIT?
AIR CLEANER OK.
REPAIR OR REPLACE
CELL(S)
WITH OHMMETER,
CHECK FOR SHORT
BETWEEN:
- CELL FRAME AND
COLLECTOR
TERMINAL.
- CELL FRAME AND
IONIZER TERMINAL.
IS "CHECK" LED LIT?
CHECK INPUT
VOLTAGE TO LED.
REPLACE
LED.
REPLACE
POWER
SUPPLY.
INSPECT CELLS FOR:
- BENT COLLECTOR
PLATES
- BROKEN IONIZER
WIRES
- DIRT ON
INSULATORS
- DAMAGED IONIZER
OR COLLECTOR
CONTACT TABS
REPLACE CELLS
NO
CELLS OK.
REPLACE SWITCH.
CHECK INPUT VOLTAGE
TO INTERLOCK SWITCH.
TURN OFF AIR CLEANER. OPEN
COVER. DEFEAT INTERLOCK. CHECK
FOR INPUT VOLTAGE TO SWITCH.
CHECK WIRING BACK
THROUGH POWER CORD
AND OUTLET TO CIRCUIT
BREAKER OR FUSE.
CORRECT WIRING
OR FUSING.
ADJUST/REPAIR/
REPLACE
INTERLOCK
SWITCH.
TURN OFF AIR CLEANER. OPEN
COVER. REMOVE ACCESS PANEL.
DEFEAT INTERLOCK. TURN ON AIR
CLEANER. JUMPER SWITCH
CONTACTS FOR EACH SPEED
IN TURN.
REPLACE
SWITCH.
HOLD DOWN TEST
BUTTON ; DOES
"CHECK" LED LIGHT?
CHECK FOR
VOLTAGE
TO "ON" LED.
REPLACE
POWER
SUPPLY.
REPLACE LED.
REPLACE
POWER
SUPPLY.
TURN OFF UNIT. OPEN COVER.
REMOVE ACCESS PANEL. DEFEAT
INTERLOCK. TURN ON AIR
CLEANER. CHECK FOR CORRECT
INPUT VOLTAGE TO POWER
SUPPLY: CHECK BOARD
TERMINALS P1 AND P2.
PUSH TEST BUTTON. LISTEN
FOR SNAPPING SOUND.
CHECK WIRING BACK THROUGH
SWITCH, INTERLOCK, POWER CORD,
OUTLET, AND CIRCUIT BREAKER.
CORRECT WIRING.
M3665B
TURN OFF POWER.
MAKE SURE FAN
MOTOR ROTATES
FREELY. REPLACE
FAN MOTOR IF
NECESSARY.
1
1
1
NO
1
REPLACE
POWER
SUPPLY.
1
NO
RISK OF ELECTRIC SHOCK
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.
WARNING
Fig. 17. Electrical troubleshooting procedure for the F57A,B.