– 29 –
the damper motor will continually cycle the
damper door open and closed until one complete
switch cycle is detected.
Damper Door Closed:
The illustration below shows the position of the
metal damper door in the open position. In this
position the oven cavity lamp can illuminate the
oven interior and air blowing through and across
the magnetron tube can enter the oven interior.
Notice that the damper door sensing switch is
not depressed.
Damper Door Open:
The illustration below shows the position of the
metal damper door in the closed position. In
this position the oven cavity lamp can not illumi-
nate the oven interior and will not allow air from
the magnetron blower to enter the oven interior.
Notice that the damper door sensing switch is
depressed.
The following damper door positions will occur
with various operations:
• When the oven is not in use (power ap-
plied to the unit with time of day clock show-
ing), the damper door will always be in the
open position.
• When the door is opened during any
cycle (microwave, speedcook, or idle with
power applied), the damper door will open,
allowing the oven cavity lamp to illuminate
the oven interior.
• Speedcooking - At the initial star t of
speedcooking operation, the damper door
will close, sealing off the damper duct from
the oven cavity. The damper door will re-
main in the closed position during the entire
speedcook operation, depressing the
damper door sensing switch.
• Microwave oven cooking - At the initial
start of microwave cooking, the damper door
will cycle one complete revolution (com-
pletely close and then reopen) and stop in
the open position (damper door sensing
switch not depressed). The oven cavity lamp
will not illuminate during microwave opera-
tion.
Oven Cavity Lamp
The oven cavity lamp is illuminated only when
the oven door is opened. During microwave oven
cooking the oven interior can be illuminated by
pressing the Microwave Oven Light pad on the
front panel. When this pad is depressed, the
upper rear halogen lamp will be illuminated for
approximately 3-4 seconds, allowing you to tem-
porarily see the oven interior. In the event that it
becomes necessary to change this oven cavity
lamp, it will be necessary to remove the oven
from its installation (see damper door assembly
- removal).
Thermal Fuse
The thermal fuse is mounted to the top of the
damper duct over a small rectangular hole in the
duct. This hole allows the thermal fuse to sense
temperatures inside the duct cavity. The fuse is
secured to the damper duct with a small screw
and retainer. In the event that it becomes neces-
sary to change this fuse, it will be necessary to
remove the oven from its installation (see damper
door assembly - removal).
THERMAL FUSE
CONN. PLUG
WIRE HARNESS
RETAINER
SWITCH
ACTUATOR
DAMPER DOOR
SENSING SWITCH
METAL DOOR SHOWN IN OPEN POSITION
THERMAL FUSE
CONN. PLUG
WIRE HARNESS
RETAINER
SWITCH
ACTUATOR
DAMPER DOOR
SENSING SWITCH
METAL DOOR SHOWN IN CLOSED POSITION
Содержание Advantium SCA2000BCC
Страница 53: ... 51 ...