Speedcook Power Levels; Upper Heaters; Lower Heater; Microwave Energy - GE SCA1000 Technical Service Manual

Speedcook Power Levels

Advantium uses power from a high-intensity
halogen light, ceramic heaters, and microwaves to
cook food from the top, bottom, and interior
simultaneously, sealing in moisture and flavor.
When using preset Speedcook recipes on the food
menu, power levels are preselected. However,
these power levels can be adjusted before or
during cooking. Also, the manual cook feature
allows you to speed cook items not on the preset
food menu by selecting your own cook time and
power level settings.
Each power level alternates heater power and
microwave energy throughout the cook time.
Percentage times of each power source vary,
dependant upon which power level has been
selected. The halogen light and ceramic heaters
will cycle on and off during a speedcook cycle,
even when full power has been selected.
UPPER POWER (U) controls both the upper
heating assembly and microwave power. A higher
UPPER POWER setting will utilize more upper
heater power, browning food faster on top. A lower
UPPER POWER setting utilizes more microwave
power, causing food to cook more evenly
throughout. Select a higher setting for such foods
as pizza and baked goods. Select a lower setting
for foods such as casseroles, meats, and fish.
LOWER POWER (L) controls the lower heater.
Select a higher setting to brown foods more on the
bottom. Select a lower setting for less browning on
the bottom.
Refer to the Speedcook Power Level Chart in this
chapter for specific power source operating
percentages.

Upper Heaters

The upper heating assembly consists of an 1100-
watt sheath heater, a 500-watt halogen heater, and
a 600-watt ceramic heater. The halogen and
ceramic heaters provide radiant heat, which
browns the outside of the food while sealing in
moisture and flavor. These heaters only operate in
the speedcook mode and always cycle on and
cycle off at the same time.
The sheath heater operates in oven/bake and
warm modes only and provides conventional
heating by convection.

Lower Heater

The lower heater is a 375-watt ceramic heater. It
operates in speedcook, oven/bake, and warm
modes. The lower heater assists in browning
foods on the bottom.

Microwave Energy

Note: When cooking in Microwave mode, always
use the glass tray.
The Advantium 120 provides 900-watts of
microwave power which is delivered directly into
the oven cavity to work independently, or in
conjunction with, other cooking cycles. As the
food rotates on the oven turntable, microwave
energy is evenly distributed to all portions of the
food.

Sensor Cooking

Advantium's Microwave mode features sensor
cooking, which automatically selects cook times
and power levels. A humidity sensor detects the
increasing humidity released during cooking,
senses when the food is done, and shuts the oven
off at the appropriate time. Sensor cooking is not
available for 5 minutes immediately following
Speedcook.

Voltage Compensation

Note: Voltage compensation only occurs when
using a preselected menu item in Speedcook.
These items require compensation for accurate
and consistent cooking results.
Voltage fluctuations in the power supply can
cause inconsistencies in cooking. The main PCB
measures line voltage at the start of each
Speedcooking selection and adjusts the cooking
time to achieve consistent results. Optimal line
voltage, where no voltage compensation occurs,
is 120 VAC. Above 120 VAC, time is subtracted
from the recipe. Below 120 VAC, time is added to
the recipe. The amount of voltage compensation
required is dependent upon the incoming voltage
at the start of the cooking cycle and the particular
speedcooking selection that is chosen.
– 8 –