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FRIEDRICH AIR CONDITIONING CO. 7-1
7. Block Diagram
7-1 Refrigerating Cycle Block Diagram
PINCH PIPE
(SERVICE VALVE)
SUCTION LINE
ACCUMULATOR/COMPRESSOR
EVAPORATOR
CAPILLARY TUBE
CONDENSER
DISCHARGE LINE
PINCH PIPE
(SERVICE VALVE)
7-2 Basic Structure
7-2-1 Micom Control Diagram
A/D converter
• Compressor control
• Buzzer control
• Temperature control
• Fan motor control
Reset Circuit
Led display control
Remocon Single
Receiving
Compressor
Fan motor
Power circuit (DC 5V)
Oscillation Circuit
Membrane Pad control
• Energe saver
• Temp.set(
↑, ↓
)
• Operation, Mode
• Swing, Sleep
• Fan select, Timer
• Remocon single contro
l
MAIN MICOM
Room Temperature sensor
Receiving Unit of Remocon
Powercircuit (DC 12V)
Down Trans (AC15V)
Power input (AC220V)
(Key operation)
(Remocon control)
Operation
Dry
Timer
Sleep
Fan speed (high)
Fan speed (med)
Fan speed (low)
Fan
Cool
Energy saver
Temp.setting(↑)
Temp.setting(↓)
(Remote Control)
DB98_04511A(2)-2 2/18/03 4:12 PM Page 7-5