Power Line; Dc Power Supply And M-Net Transmission Line - Mitsubishi Electric PAC-SC51KUA Installation Manual

2. Power line

Wire the power and ground cables to L/L1, N/L2 and the ground cable terminals on TB1 as shown in Fig. 4-2.
A Breaker for
wiring
B Ground-fault
interrupter
Power source
100-240VAC
50Hz/60Hz
B
*1 Install ground-fault interrupter and breaker for wiring on
the power supply.
*2 Do not use anything other than a breaker and fuse with
the correct capacity. Using a fuse or wire of too large
capacity may cause malfunction or fire.
*3 Note : When installing the unit, use the switch having a
contact separation of at least 3mm (

3. DC Power Supply and M-NET Transmission Line

3-1. When connecting to the centralized controller (AG-150A)
(1) Without the use of an expansion controller (PAC-YG50ECA)
(a) Connected via the terminal block
The DC power cable and M-NET transmission line connect as shown in Fig. 4-3. The DC power cable has a 24VDC and a GND
polarity. Connect it to the terminals in accordance with the polarity. Connect the M-NET transmission line to the A, B
(non-polarity), and S (shield) terminal block.
Centralized controller
A
Power cable
Attach the
power line
Ground cable
Ground
Fig. 4-2
/ in.) in each pole.
1
8
(AG-150A)
Cable Clamp
M-NET transmission line
(Centralized control line)
DC power supply line (24VDC) *Polarized
Back of controller
A B S CN1 V+ V- FG
M-NET 24VDC
DC power
supply
line (Polarity) Function earthing
(ground) line
Power line terminal
TB1
L/L1 N/L2
100-240V
Applicable area
* Use L/N in EU.
* Use L1/L2 in the U.S.
* Use a ring terminal to connect to the terminal block.
Power supply unit (PAC-SC51KUA)
Power supply unit
CN1
TB2 M-NET
CN2
A B S
M-NET transmission
A, B line (Non-Polarity)
Shield
50 m (164 ft) or less
* Use a ring terminal to connect to the terminal block
Fig. 4-3
- 6 -
Ground terminal
Ground cable
Power cable 2
Power cable 1
Power cable
EU L N
US L1 L2
Outdoor unit
CN2
TB3 Output
V+ V- FG
24VDC
DC power supply
line (Polarity)