5
R-7A55(W)/(B)
R-7E45(W)/(B)
2. The coil of shut-off relay RY3 is energized by the control
unit and the main supply voltage is added to the convection
heating element.
3. When the oven temperature reaches the selected preheat
temperature, the following operations occur;
3-1. The shut-off relay RY3 is de-energized by the control
unit temperature circuit and thermistor, opening the
circuit to the convection heating element.
3-2. The oven will continue to function for 15 minutes,
turning the convection heating elements on and off, as
needed to maintain the selected preheat temperature.
The oven will shut-down completely after 15 minutes.
CONVECTION COOKING CONDITION (Figure O-3)
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. Program desired cooking time and
convection temperature by touching the CONVECTION key.
When the START key is touched, the following operations
occur:
1. The numbers of the digital readout start the count down
to zero.
2. The oven lamp, cooling fan motor, turntable motor and
convection motor are energized.
3. Relay RY3 is energized If the cavity temperature is lower
than the selected temperature) and the main supply
voltage is applied to the convection heating element to
return to the selected cooking temperature.
4. Upon completion of the cooking time, the audible signal
will sound, and oven lamp, turntable motor, cooling fan
motor and convection motor are de-energized. At the end
of convection cycle, if the cavity air temperature is above
104˚C, the circuit to RY6 will be maintained (by the
thermistor circuit) to continue operation of the cooling fan
motor until temperature drops below 104˚C, at that time
the relay will be de-energized, turning off the fan motor .
GRILL COOKING CONDITION (Figure O-4)
In this condition the food is cooked by grill heating element
energy. And at the initial period (approximately 10 minutes)
the convection heater element is also activated. Program
desired cooking time and grill mode by touching TIME keys
and GRILL key. When the START key is touched, the
following operations occur:
1. The numbers of the digital readout start the count down
to zero.
2. The oven lamp, cooling fan motor, turntable motor and
convection motor are energized.
3. The relay RY5 is energized and the grill heating element
is energized.
4. The relay RY3 is energized, if the cavity temperature is
lower than 210˚C. When the cavity temperature reaches
210˚C, relay RY4 and RY3 are de-energized.
5. Now, the food is grilled by the grill heating elements..
DUAL COOKING CONDITION
MICROWAVE AND CONVECTION (Figure O-5)
Program desired cooking time and Dual cook mode by
touching the TIME keys and DUAL COOK key once. When
the START key is touched, the following operations occur:
1. The numbers of the digital readout start the count down
to zero.
2. The oven lamp, cooling fan motor, turntable motor and
convection motor are energized.
3. Relay RY3 is energized (If the cavity temperature is lower
than the selected temperature) and the main supply
voltage is applied to the convection heating element.
4. Relay RY2 is energized and the microwave energy is
generated by magnetron.
5. Now, the food is cooked by the microwave and convection
heating elements energy simultaneously.
DUAL COOKING CONDITION
MICROWAVE AND GRILL (Figure O-6)
Program desired cooking time and Dual cook mode by
touching the TIME keys and DUAL COOK key twice. When
the START key is touched, the following operations occur:
1. The numbers of the digital readout start the count down
to zero.
2. The oven lamp, cooling fan motor, turntable motor and
convection motor are energized.
3. Relay RY5 is energized and the main supply voltage is
applied to the grill heating element.
4. Relay RY2 is energized and the microwave energy is
generated by magnetron.
5. Now, the food is cooked by the microwave and grill
heating elements energy simultaneously.
POTATO, INSTANT ACTION
When the menu and quantity are input, the oven chooses
cooking mode (Microwave, Convection, Grill or Dual) and
sets cooking time automatically according to the pre-pro-
grammed information in IC-1 (LSI).
