Honeywell F57A Original Manual page 16

F57A,B FLUSH-MOUNT COMMERCIAL ELECTRONIC AIR CLEANER
START
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.
LED ON/FAN ON
PUSH TEST BUTTON.
LISTEN FOR
SNAPPING SOUND.
YES
HOLD DOWN TEST
BUTTON. IS
"CHECK" LED LIT?
YES
RELEASE TEST
BUTTON. IS
"CHECK" LED LIT?
NO
IS "WASH" LED LIT?
NO
CLEAN CELLS,
WIPING IONIZER
WIRES. INSPECT
CELLS FOR
DAMAGED IONIZER
CONTACTS.
REMOVE CELLS. IS
"WASH" LED LIT?
YES
AIR CLEANER OK.
REPAIR OR REPLACE
CELL(S)
NO
WITH OHMMETER,
CHECK FOR SHORT
BETWEEN:
- CELL FRAME AND
COLLECTOR
TERMINAL.
- CELL FRAME AND
IONIZER TERMINAL.
INFINITE RESISTANCE
68-0083—07
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.
"ON" LED OFF/FAN OFF
"ON" LED ON/FAN OFF
"ON" LED OFF/FAN ON
YES
NO
IS "CHECK" LED LIT?
NO
REPLACE
POWER
1
SUPPLY.
NO
CHECK INPUT
VOLTAGE TO LED.
YES
NO
REPLACE
LED.
REPLACE
YES
POWER
1
SUPPLY.
YES
YES
TURN OFF AIR
CLEANER. SHORT
IONIZER TO FRAME
WITH TEST LEAD.
TURN ON AIR
CLEANER. IS
NO
"WASH" LED LIT?
DAMAGED
REPLACE OR
REPAIR CELLS.
NO
INSPECT CELLS FOR:
- BENT COLLECTOR
PLATES
YES
- BROKEN IONIZER
WIRES
- DIRT ON
INSULATORS
- DAMAGED IONIZER
OR COLLECTOR
NO
CONTACT TABS
REPLACE CELLS
CELL
SHORTED
CELLS OK.
Fig. 17. Electrical troubleshooting procedure for the F57A,B.
WARNING
RISK OF ELECTRIC SHOCK
TURN OFF AIR CLEANER. OPEN
COVER. DEFEAT INTERLOCK. CHECK
FOR INPUT VOLTAGE TO SWITCH.
TURN OFF AIR CLEANER. OPEN
COVER. REMOVE ACCESS PANEL.
DEFEAT INTERLOCK. TURN ON AIR
CLEANER. JUMPER SWITCH
CONTACTS FOR EACH SPEED
IN TURN.
FAN
FAN
ON
OFF
TURN OFF POWER. REPLACE
MAKE SURE FAN
SWITCH.
MOTOR ROTATES
FREELY. REPLACE
FAN MOTOR IF
NECESSARY.
PUSH TEST BUTTON. LISTEN
FOR SNAPPING SOUND.
NO
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.
NO
YES
REPLACE
POWER
1
SUPPLY.
CHECK WIRING BACK THROUGH
SWITCH, INTERLOCK, POWER CORD,
OUTLET, AND CIRCUIT BREAKER.
CORRECT WIRING.
ELECTRONIC COMPONENTS ON POWER SUPPLY BOARDS ARE
1
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.
16
YES
REPLACE SWITCH.
NO
CHECK INPUT VOLTAGE
TO INTERLOCK SWITCH.
YES
NO
ADJUST/REPAIR/
REPLACE
INTERLOCK
SWITCH.
CHECK WIRING BACK
THROUGH POWER CORD
AND OUTLET TO CIRCUIT
BREAKER OR FUSE.
CORRECT WIRING
OR FUSING.
YES
HOLD DOWN TEST
BUTTON ; DOES
"CHECK" LED LIGHT?
YES
NO
CHECK FOR
VOLTAGE
TO "ON" LED.
NO
YES
REPLACE
POWER
1
SUPPLY.
REPLACE LED.
M3665B