Theory Of Operation; Accubake Vs. Accubake Duo Cooking Systems - Whirlpool RF196LXK Technical & Service Manual

Both AccuBake and AccuBake Duo cooking
systems will be used on K-line freestanding
gas and electric self-cleaning ranges. The
changes between the AccuBake and AccuBake
Duo systems, (refer to the illustration below),
include the addition of a second temperature
sensor within the oven cavity, and software
changes to the electronic oven control.
The AccuBake system has been available on
ranges since 1996. It used a temperature sen-
sor and an electronic oven control to monitor
and maintain even heat throughout the cook-
ing cycle. The system created a cooking envi-
ronment that could evenly cook a variety of
foods with very consistent results. The
AccuBake system used one temperature sen-
sor to monitor temperatures throughout the
oven cavity, and cycle both the bake and broil
elements on at predetermined times during the
cycle. The bake and broil elements work simul-
taneously to maintain proper heat.
Top Sensor

THEORY OF OPERATION

ACCUBAKE VS. ACCUBAKE DUO
COOKING SYSTEMS
The AccuBake Duo system, which will be used
on Whirlpool "Gold Series" models, uses a
second temperature sensor to provide a more
uniform temperature distribution throughout
the oven cavity. The AccuBake Duo system
uses two electronic temperature sensors in-
side the oven cavity to help control tempera-
tures, but the sensors work independently to
provide proper heat at the top and at the bottom
of the oven cavity. The top sensor controls
temperatures at the top of the oven cavity, and
controls the operation of the top (broil) ele-
ment. The bottom sensor controls the opera-
tion of the bottom (bake) element. By using two
independent sensors, the temperature within
the oven is more evenly distributed.
For servicing the system, it is important to know
that neither of the oven elements are on at the
same time, except during preheat in the elec-
tric oven. During that time, the bake element is
on for one hundred percent (100%) of the time,
and the broil element is on for thirty-three
percent (33%) of the time. During preheat on
gas models, the bake burner is on for one
hundred percent (100%) of the time.
2-1
Bottom Sensor