- 62 -
2
Stop Mode
Cooling Mode
1
· Thermistor
· Float Switch
· HA In
· Rotary Switch
· Relay
· LEV
· Fan Motor
· Bypass valve
· LEV
· LED
· Crankcase heater
· Thermistor
· Pressure sensor
· Protection input
· Rotary switch
Indoor unit
Indoor/Outdoor unit transmission line
Address switch SW
SW
Address switch
SW
Compressor
operation signal
Error signal
· 52C
· Cooling fan
COMP
IPM
(Intelligent power module)
DC530~580V
DS
(Diode stack)
Noise
filter
Gate amp. board
Inverter board
Main control board
TB7
TB3
3N-
380/400/415V
Centralized control unit transmission line
0 1
2
3
4
5
6
7
8
9
0 1
2
3
4
5
6
7
8
9
0 1
2
3
4
5
6
7
8
9
0 1
2
3
4
5
6
7
8
9
Outdoor unit
2
Stop Mode (corresponding indoor unit is in Fan mode or stopped)
Cooling Mode (corresponding indoor unit is in cooling mode)
1
[11]
Control-Block Diagram
[12]
Operation Modes
(1) Indoor Unit Operation Modes
(2) Outdoor Unit Operation Modes
