Mitsubishi Electric MAC-821SC-E Manuel D'installation page 7

3-2. Connecting the Connection Wire
1
Connect the power supply wire (2-core + ground) B to the power terminal.
After they are connected, check that the wires cannot be easily pulled off.
Power terminal
Washer
Connection wire C
(3-core)
2
Mount the ground wire using the ground wire mounting screws.
3
Connect the connection wire (3-core) C to the MA & Contact terminal interface (MAC-397IF-E) A, (sold separately) corre-
sponding to the air conditioner device number of each unit on the signal terminal.
• One signal terminal can be used for connecting 4 rooms.
* Connect the devices corresponding to
their display number on the control panel.
• Connect the centralized controller to the adapters as shown below.
Connection wire (3-core)
D
Centralized
C
controller
M
Power supply wire B
(2-core + ground)
Signal terminal
Connection wire C
(3-core)
Signal terminal
TC1
TC2
MA & Contact
terminal interface A
TM1
TM2
Work on Power Supply wire End
• Be sure to use 1.5 mm
wire B (2-core + ground).
• The work on power supply wire end
should be performed as shown in the fig-
ure below.
80 mm
10 mm
Work on Connection Wire End
Note: Centralized controller side
6 mm
100 mm
2
power supply
Ring tongue
terminal for
M4 D
Ground
8 mm
7