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The following description is basically for GR-S552/GR-S592. For the other models, refer to the diagram of the entire PCB
circuit.
7-1 FUNCTION
7-1-1 FUNCTION
1. When the appliance is plugged in, it is set to ‘Medium’. Each time the button is pushed, it is set to
‘Medium’→‘Medium/High’→‘High’→‘Low’→‘Medium/Low’→‘Medium’ in order.
2. When the power is initially applied or restored after a power failure, it is automatically set to ‘Medium’.
7-1-2 CONTROL OF VARIABLE SPEED FAN IN THE FREEZER COMPARTMENT
1. Fan motor in the freezer compartment shall change from standard to high speed rpm in order to increase cooling speed
and load corresponding speed.
2. High speed rpm is only used for the initial power application and load corresponding operation. But standard rpm is used
in the general working condition.
3. When the door of freezer room or refrigerator room is opened, the fan motor is stoped immediately, then when the door is
closed, the fan motor is operated.
7-1-3 CONTROL OF DOUBLE COOLING FAN IN THE REFRIGERATOR COMPARTMENT
1. To raise the refrigerating speed, fan motor in the refrigerator compartment is operated when the door of freezer room or
refrigerator room is opened and then closed.
2. The fan motor is stoped after 20 sec. When the door is dosed.
7. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM
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Temp
Control
Low MediumMedium/Low Medium/High High
TEMP(°C)
ROOM
6 4.5 2.5 0.5 -1
REFRIGERATOR