7
R-55TS
HEATERS mode.
UPPER
HEATER
MODE (GRILL1)
In this mode, the food is cooked by the upper heater. Press
the GRILL pad once and then enter the cooking time by
rotating the rotary dial. When the START pad is pressed,
the following operations occur (Figure O-3):
1. The relays (RY1, RY2 , RY3 and RY5) are energized.
2. The contacts of the select relay will close between the
common and normal close terminals.
3. The numbers of the digital read-out start the count down
to zero.
4. Then the upper heater, turntable motor, oven lamp and
fan motor are energized.
5. Now, the food is grilled by the upper heater.
6. Upon completion of the selected cooking time, audible
signal sounds and the contacts of relays (RY1, RY2 and
RY3) are opened, then the upper heater, turntable
motor and oven lamp are de-energized. But the relay
(RY5) stays closed and the fan motor operates until the
thermistor temperature drops below 250˚F(120˚C).
NOTE: Maximum cooking time is 30 minutes.
UPPER AND LOWER HEATERS MODE (GRILL 2)
In this mode, the food is cooked by both the upper heater
and lower heater. Press the GRILL pad twice and then
enter the cooking time by rotating the rotary dial. When the
START pad is pressed, the following operations occur
(Figure O-4):
1. The relays (RY1, RY2, RY3, RY4, and RY5) are
energized.
2. The contacts of the select relay will close between the
common and normal close terminals.
3. The numbers of the digital read-out start the count down
to zero.
4. Then the upper heater, lower heater, turntable motor,
oven lamp and fan motor are energized.
5. Now, the food is grilled by the upper heater and the lower
heater.
6. Upon completion of the selected cooking time, audible
signal sounds and the contacts of relays (RY1, RY2,
RY3, and RY4) are opened, then the upper heating
elements, lower heating element, turntable motor and
oven lamp are de-energized. But the relay (RY5) stays
closed and the fan motor operates until the thermistor
temperature drops below 250˚F(120˚C).
NOTE: Maximum cooking time is 30 minutes.
BAKE COOKING CONDITION
1. Program desired oven temperature by touching the
BAKE pad. Enter the cooking time by rotating the rotary
dial. When the START pad is touched, the following
operations occur (Figure O-5):
[PREHEATING CONDITION]
2. The coil of shut-off relays (RY1, RY2 , RY3, RY4 and
RY5) are energized.
3. The contacts of the select relay will close between the
common and normal close terminal.
4. The numbers of the digital read-out start the count down
to zero.
5. Then the upper heater, lower heater, turntable motor,
oven lamp and fan motor are energized.
6. When the oven temperature reaches the selected
preheat temperature, the following operations occur:
6-1 The relays (RY3 and RY4) are de-energized by the
control unit temperature circuit and thermistor,
opening the circuit to the heating elements.
6-2. The oven will continue to function for 30 minutes,
turning the upper heater and the lower heater on
and off, as needed to maintain the selected preheat
temperature. The oven will shutdown completely
after 30 minutes
[BAKE TIME COOKING CONDITION]
7. When the preheat temperature is reached, a beep
signal will sound indicating that the holding temperature
has been reached in the oven cavity. Open the door and
place the food to be cooked in the oven. In this time, to
keep the oven temperature, the fan motor will not
operate when the door is opened. When the START pad
is touched, the following operations occur:
8. The numbers on the digital read-out start to count down
to zero.
9. The relays (RY1, RY2 , RY3, RY4 and RY5) are energized
and the oven lamp, turntable motor and cooling fan
motor are energized.
10.The relays (RY3 and RY4) are energized (if the cavity
temperature is lower than the selected temperature)
and the main supply voltage is applied to the heating
elements to return to the selected cooking temperature.
11.Upon completion of the cooking time, the audible signal
will sound, and oven lamp, turntable motor and cooling
fan motor are de-energized. At the end of the Bake
cooking cycle, if the thermistor temperature is above
250˚F(120˚C), the circuit to RY5 will be maintained (by
the thermistor circuit) to continue operation of the cooling
fan motor until the temperature drops below
250˚F(120˚C), at which time the relay will be de-
energized, turning off the fan motor.
NOTE: The actual oven temperature may differ from the
set temperature. Because the oven regulates
the oven temperature by turning the upper and
lower heaters on and off.