Honeywell F90A1050 - Page 22

F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
68-0103-6 Revised 11-07
21
Fig. 25. F90B 120 Vac model schematic diagram.
P3
P4
P1
P2
2
1
J2
3
4

1
RED IONIZER
BLACK COLLECTOR
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS 
AND OVERLOAD PROTECTION AS REQUIRED. 

2 INTERLOCK SAFETY SWITCH.

3 REPLACE THE BLACK LEADS.

M6156

POWER
SUPPLY

2
BLACK
RED
TEST
BUTTON
CONTACT

BOARD

3
BROWN
VIOLET
BLUE
RED
ON
HI
MED
LO
HI
MED
LO
OFF
FAN
MOTOR
P21
P22
PERFORMANCE
SWITCH
BLACK
BLACK
WHITE
ORANGEBLACK
L1
(HOT)
L2
GROUND


PUSH BUTTONS WIRING TERMINALS
ON-OFF/3-SPEED FAN SWITCH
CHECK
(RED)
WHITE
RED
WASH
(YELLOW)
WHITE
RED
WHITE
GREEN
SPEED
CONTROL
MODULE
ON
(YELLOW)
WHITE
RED