Electric Connection - McQuay MDS030AR Applications Manual

2.7 Electric Connection

2.7.1 MDS030A/AR MDS040A/AR MDS050A/AR
Outdoor
220V/1~/50Hz
Unit electric control box
QF
Main board
Main power
terminal support Communic-
ation port
L N
Shielded wire
2.7.2 MDS050A/AR MDS060A/AR
Outdoor
380V/3N~/50Hz
Unit electric control box
L1 L2 L3 N
QF
Main power
Main board
terminal support
Shielded wire
Design & installation Guide For McQuay MDS Multi System
Indoor unit 1
Indoor
Unit electric control box
Main board
Main power
terminal support
Communic-
ation port
L N
Power
supply
220V/1~/50Hz
Unit electric control box
Main board
Main power
Communic-
terminal support
ation port
L N
Power
supply
220V/1~/50Hz
Notes:
1.The J1 of the control module sets the inside unit number. The first digit
of indoor unit J2 which is at the end of the bus is set to ON.
2. For specifications of the power cable, refer to the Installation Manual.
3. To avoid interference of strong electricity to weak electricity, the communication
cables of the power box are distributed separately.
4. The indoor units are powered from the same power supply.
Indoor unit 1
Unit electric control box
Indoor
Main board
Main power
terminal support Communic-
ation port
Power
supply
Communication wire
Unit electric control box
Main board
Main power
terminal support
Power
supply
220V/1~/50Hz
Notes:
1.The J1 of the control module sets the inside unit number. The first digit
of indoor unit J2 which is at the end of the bus is set to ON.
2. For specifications of the power cable, refer to the Installation Manual.
3. To avoid interference of strong electricity to weak electricity, the communication
cables of the power box are distributed separately.
4. The indoor units are powered from the same power supply.
Indoor unit 2
Unit electric control box
Main power
terminal support
Power
supply
220V/1~/50Hz
Communication wire
Unit electric control box
Main power
terminal support
L N
Power
supply
220V~/50Hz
Communication wire
Indoor unit 2
Unit electric control box
Main board
Main power
Communic-
terminal support
ation port
Power
supply
220V~/50Hz
Communication wire Communication wire
Unit electric control box
Main power
terminal support
Power
supply
220V~/50Hz
Communication wire
Main board
Communic-
ation port
Communication wire
Main board
Communic-
ation port
Main board
Communic-
ation port
-49-