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FIGURE 3
OF23 GENERAL PARTS ORIENTATION
LIMIT SWITCH
CONTROL BOX
WITH FAN
CONTROL
BECKETT
AFII BURNER
INDOOR BLOWER
COMBUSTION
AIR INTAKE
OBSERVATION PORT
CLEANOUT PORT
FRONT VENT
OPENING (OF23)
HEAT EXCHANGER
CLEANOUT
PORT
FILTER
REAR VENT
OPENING (OF23R)
FIGURE 4
BCC2 / BCC3 BLOWER CONTROL BOARD
NEUTRAL
TERMINALS
ACCESSORY
TERMINAL
THERMOSTAT TERMINAL STRIP TB1
(DETACHABLE ON EARLY −1 AND −2
MODELS ONLY)
BLOWER TIME
ADJUSTMENT
JUMPER
HEATING SPEED
TAP TERMINAL
COOLING
SPEED TAP
TERMINAL
CONTINUOUS FAN
TERMINAL
To Remove Terminal Strip,
Grasp Ends of Block Between
Thumb and Forefinger. Push
Block Down and Out.
(Jack / Plug 94)
120VAC
TRANSFORMER
COMMON
120VAC LINE
VOLTAGE IN
24VAC IN FROM
PRIMARY LIMIT
24VAC OUTPUT
TO BURNER
(HEAT DEMAND)
24VAC THERMOSTAT
DEMAND OUTPUT
24VAC INPUT
FROM TRANSFORMER
24VAC COMMON
FROM TRANSFORMER
