Wiring; System Without Connection To A Pac-Yg50Eca Expansion Controller - Mitsubishi Electric AG-150A-A Installation Manual

7 Wiring

1. System without connection to a PAC-YG50ECA Expansion controller

Centralized controller
AG-150A
(Front view)
Centralized controller (Back view)
A B
M-NET
NOTES
Connecting the M-NET transmission line to the AG-150A.
* Connect the M-NET transmission to the centralized controller system side, and supply power to the M-NET from PAC-
SC51KUA.
* Leave the power jumper connected to CN41 on all outdoor units.
Cable clamp
M-NET transmission line
(Centralized control line)
DC power supply line (24VDC)
V+
S CN1 V- FG
24VDC
DC power supply
line (Polarized)
Function earthing
(ground) line
Power supply unit (PAC-SC51KUA)
*Polarized
CN1
TB2
CN2
A
M-NET transmission
A, B line (Non-polarity)
Shield
50m (164 ft) or less
- 21 -
Power supply unit
CN2
M-NET TB3 Output
B S V+ V- FG
24VDC
DC power supply line
(Polarized)
to Outdoor unit
* Use a ring terminal to connect to the terminal block
Outdoor unit
TB7