Mitsubishi Electric Lossnay LGH-RX5-E Series Manual page 31

6. Precautions When Designing M-NET
Systems
6.1 M-NET Transmission Cable Power Supply
On an M-NET system, the remote controller or central controller operate on power from the transmission cable. Accordingly,
there is need to provide power to the transmission cable.
Two systems are available for supplying power: the central system is supplied by a power supply unit; the indoor unit system is
supplied by an outdoor unit. The Lossnay unit and the Lossnay remote controller can be connected to either system.
Centralized controller
Lossnay
remote controller
(PZ-60DR-E)
6.2 Restrictions When the Lossnay Units are Con-
nected to the Central Controller M-NET Trans-
mission Cable
The power supply unit has limited capacity; therefore, the number of Lossnay remote controllers is restricted when the Lossnay
M-NET remote controllers and Lossnay units are connected to the centralized controller transmission cable. The restriction does
not apply to Lossnay and G-50A units that do not receive power from the centralized controller transmission cable.
System controller Model
Power supply unit
PAC-SC50KUA
Number of Lossnay
M-NET remote con- Transmission Booster
trollers that can be PAC-SF46EPA
connected.
Power supply unit
PAC-SC51KUA
Central remote controller
• If a larger number of Lossnay remote controllers than that shown above is connected due to the addition a power supply unit
(PAC-SC50KUA, PAC-SC51KUA), a transmission booster (PAC-SF46EPA) is necessary.
• Transmission Booster (PAC-SF46EPA) can be used without a power supply unit (PAC-SC50KUA, PAC-SC51KUA) if TB2
(outdoor unit side) is opened, and the M-NET transmission cable is connected to TB3 (additional indoor unit side).
The central system
M-NET
AG-150A
24 VDC
Power supply unit
(PAC-SC51KUA)
Lossnay
Non
Max. 24 units
Max. 40 units
Max. 20 units
Transmission cable
Power supply unit
(PAC-SC50KUA)
Lossnay M-NET remote controller
(PZ-52SF-E)
Outdoor unit
TB7 TB3
Indoor unit transmission cable
Centralized controller
Indoor unit
transmission cable
of air conditioner
MA remote controller
G-50A PAC-SF44SRA
One unit
Max. 22 units Max. 22 units
Max. 39 units Max. 39 units
Max. 18 units
Lossnay Lossnay
Lossnay M-NET remote controller
(PZ-52SF-E)
The indoor unit system
Lossnay
PAC-YT40ANRA
One unit
One unit
Max. 20 units
Max. 39 units
Max. 16 units
Lossnay Lossnay
AG-150A
One unit
Max. 18 units
C-31