GE Profile Performance ADVANTIUM SCA2000BAA Service Manual page 32

AIR FLOW
There are 4 fan motors in the Advantium design
which provide airflow for proper cooling. During
speedcooking (pre-selected recipe or manual
speedcook) all four fan motors will run during
the entire speedcook operation.
LOWER HALOGEN
BLOWER
EXHUAST VENT
MOTOR
Vent Motor
The vent motor serves two purposes. This first
is ventilation of vapors from the cooktop surface
below the hood, and the second is removal of
heat from the lower halogen lamps and surround-
ing areas (see illustration on next page).
As you will notice in the illustration in the upper
right corner, the vent motor has three speeds;
however, the consumer can only select two
speeds - HI and LOW.
During speedcook operation the vent motor will
always run in SLOW speed, unless the consumer
selects HI or LOW speed from the control panel.
The vent fan will always run during speedcook
operations in order to maintain air movement for
proper cooling.
The vent fan pulls air from the cooktop surface
and also pulls hot exhaust air from the lower halo-
gen lamps and exhausts it to the outdoors or back
UPPER HALOGEN
BLOWER
MAGNETRON BLOWER
ASSEMBLY
– 30 –
into the room (depending on exhaust setup - see
installation instructions in this manual for details
on exhaust options).
38.6 Ω
HIGH
16.1 Ω 14.0 Ω
LOW
SLOW
Upper & Lower Halogen Blowers
The upper and lower halogen blowers only run
during speedcooking operations (speedcook
recipe or manual speedcook selections). Both
motors pull in fresh air from outside the unit (up-
per from the grille and lower from the vent hood)
and direct the air across the halogen lamps.
Upper Halogen Blower
As you will note from the "airflow" illustration on
the next page, the upper halogen blower pulls air
in from the upper grille area (air inlet tunnel). The
air is then directed (blown) across the upper halo-
gen lamp pair and exhausted back into the room
through the air outlet tunnel. The hot air directed
across the upper halogen pair is not controlled
or directed by the vent motor.
Lower Halogen Blower
The lower halogen blower draws room air in
through the front grille (air inlet tunnel). The air
is pulled into the magnetron blower area; down
into the inlet of the lower halogen blower and di-
rected (blows) across the halogen lamps. The
air is then pulled up the left side of the unit (see
illustration next page) and removed by the vent
blower (exhausted to the outside).
Y
22.0 Ω
R