Honeywell F90B, F90A specifications Start

F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER

START WARNING

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 ￿

MAKE SURE CELLS ￿INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO. ARE CLEAN, DRY, ￿

PROPERLY INSTALLED.

					YES	REPLACE SWITCH.
			TURN AIR CLEANER OFF. OPEN COVER. ￿
	"ON" LED OFF/FAN OFF
CLOSE COVER OR￿			DEFEAT INTERLOCK. CHECK FOR INPUT ￿		NO
			VOLTAGE TO SWITCH.
DEFEAT INTERLOCK.￿						CHECK INPUT VOLTAGE ￿
TURN AIR CLEANER ￿
	"ON" LED ON/FAN OFF					TO INTERLOCK SWITCH.
ON. CHECK FAN ￿			TURN AIR CLEANER OFF. OPEN COVER. ￿
						YES
							NO
OPERATION AT LO, ￿			REMOVE ACCESS PANEL. DEFEAT INTERLOCK. ￿
MED, HI SPEEDS.￿	"ON" LED OFF/FAN ON		TURN AIR CLEANER ON. JUMPER SWITCH ￿
OBSERVR "ON'' LED.			CONTACTS FOR EACH SPEED IN TURN.			ADJUST/REPAIR/￿
LED ON/FAN ON			FAN ￿	FAN ￿		REPLACE ￿
						INTERLOCK ￿
			OFF	ON
						SWITCH.
	NO		YES
PUSH TEST BUTTON. ￿		IS "CHECK" LED LIT?		REPLACE ￿
LISTEN FOR ￿						CHECK WIRING BACK ￿
SNAPPING SOUND.				SWITCH.		THROUGH POWER CORD ￿
YES			F90B	F90A		AND OUTLET TO CIRCUIT ￿
						BREAKER OR FUSE.

HOLD DOWN TEST ￿

NO

CHECK INPUT ￿

BUTTON. IS ￿

VOLTAGE TO LED.

JUMPER ORANGE ￿

TURN OFF POWER.

￿

"CHECK" LED LIT?

NO YES

WIRE TO WIRE FROM ￿

MAKE SURE FAN ￿

CORRECT WIRING

￿

SPEED CONTROL ￿

MOTOR ROTATES ￿

YES

OR FUSING.

MODULE TO ￿

FREELY. REPLACE ￿

REPLACE LED.

FAN MOTOR

FAN MOTOR IF ￿

FAN ￿

FAN ￿

NECESSARY.

RELEASE TEST ￿

YES

REPLACE POWER ￿

OFF

ON

BUTTON. IS ￿

SUPPLY AND LED ￿

"CHECK" LED LIT?

DRIVER BOARD.

NO

REPLACE SPEED ￿

YES

CONTROL MODULE

		TURN OFF AIR ￿
	YES	CLEANER. SHORT ￿	TURN OFF POWER. MAKE SURE FAN ￿
IS "WASH" LED LIT?		IONIZER TO FRAME ￿	MOTOR ROTATES FREELY. REPLACE ￿
		WITH TEST LEAD. ￿	FAN MOTOR IF NECESSARY.
NO		TURN ON AIR ￿
		CLEANER. IS ￿
			PUSH TEST BUTTON. LISTEN FOR SNAPPING ￿		YES	HOLD TEST BUTTON ￿
		"WASH" LED LIT?
						DOWN; DOES "CHECK" ￿
			SOUND.
		NO				LED LIGHT?
						NO	YES
		CLEAN CELLS, ￿
		WIPING IONIZER ￿	TURN UNIT OFF. OPEN COVER. REMOVE ￿
		WIRES. INSPECT ￿	ACCESS PANEL. DEFEAT INTERLOCK. TURN ￿			CHECK FOR ￿
		CELLS FOR ￿	AIR CLEANER ON. CHECK FOR CORRECT ￿			VOLTAGE ￿
		DAMAGED IONIZER ￿	INPUT VOLTAGE TO POWER SUPPLY: CHECK ￿			TO "ON" LED.
		CONTACTS.	BOARD TERMINALS P1 AND P2.			NO	YES
		DAMAGED	NO	YES

REPLACE POWER ￿

REPLACE OR ￿

REPLACE ￿

SUPPLY AND LED

REPAIR CELLS.

NO

POWER ￿

1

DRIVER BOARD. 1

REMOVE CELLS. IS ￿

SUPPLY.

"WASH" LED LIT?

YES

CHECK WIRING BACK THROUGH SWITCH, ￿

REPLACE LED.

INTERLOCK, POWER CORD, ￿

AIR CLEANER OK.

INSPECT CELLS FOR:

￿

OUTLET, AND CIRCUIT BREAKER.

- BENT COLLECTOR ￿

REPAIR OR REPLACE ￿

YES

PLATES￿

CELL(S)

- BROKEN IONIZER ￿

WIRES￿

CORRECT WIRING.

NO

- DIRT ON ￿

INSULATORS￿

NO

- DAMAGED IONIZER￿

WITH OHMMETER, ￿

OR COLLECTOR ￿

CHECK FOR SHORT ￿

CONTACT TABS

BETWEEN:￿

- CELL FRAME AND￿

COLLECTOR ￿

REPLACE CELLS

TO USE THIS CHART:￿

CELL ￿

TERMINAL.￿

- CELL FRAME AND￿

SHORTED

1. FOLLOW THE STEPS IN EXACT SEQUENTIAL ORDER. ￿

IONIZER TERMINAL.

2. EACH TIME YOU ISOLATE AND FIX A PROBLEM, GO BACK TO START.￿

CELLS OK.

3. REPEAT ALL THE STEPS UNTIL THE AIR CLEANER CHECKS OUT OK.

INFINITE RESISTANCE

1ELECTRONIC 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.

M1525B

Fig. 20. F90 electrical troubleshooting procedure.

17 68-0103-6 Revised 11-07