Mitsubishi Electric CITY MULTI PURY-HP72TNU-A Data Book page 88

11. M-NET CONTROL
11-3-3. Ensuring proper power supply to System controller
The power to System controller (excluding AE-200A, AE-50A, EW-50A, BAC-HD150, LM-AP) is supplied via M-NET transmission line. M-NET
transmission line at TB7 side is called Centralized control transmission line while one at TB3 side is called Indoor-Outdoor/Heat source transmission
line. There are 3 ways to supply power to the System controller .
A) Connecting to TB3 of the Outdoor/Heat source unit and receiving power from the Outdoor/Heat source unit.
B) Connecting to TB7 of the Outdoor/Heat source unit and receiving power from the Outdoor/Heat source unit.
(Not applicable to the PUMY model)
C) Connecting to TB7 of the Outdoor/Heat source unit but receiving power from power supply unit PAC-SC51KUA.
* System controllers (AE-200A, AE-50A, EW-50A, BAC-HD150, LM-AP) have a built-in function to supply power to the M-NET transmission
lines, so no power needs to be supplied to the M-NET transmission lines from the Outdoor/Heat source units or from PAC-SC51KUA.
11-3-3-A. When connecting to TB3 of the Outdoor/Heat source unit and receiving power from the
Outdoor/Heat source unit.
Maximum 3 System controllers can be connected to TB3.
If there is more than 1 Outdoor/Heat source unit, it is
necessary to replace power supply switch connector CN41
with CN40 on one Outdoor/Heat source unit.
11-3-3-B. When connecting to TB7 of the Outdoor/Heat source unit and receiving power from the Outdoor/Heat source unit.
(Not applicable to the PUMY model)
A maximum of 6 system controller are connectable to TB3 and TB7 of
Outdoor/Heat source unit.
(Not applicable to the PUMY model)
It is necessary to replace power supply switch connector CN41 with
CN40 on one Outdoor/Heat source unit.
11-3-3-C. When connecting to TB7 of the Outdoor/Heat source unit but receiving power from PAC-SC51KUA.
When using PAC-SC51KUA to supply transmission power, the
power supply connector CN41 on the Outdoor/Heat source units
should be kept as it is. It is also a factory setting.
1 PAC-SC51KUA supports maximum 1 AG-150A-A or
1 EB-50GU-A unit due to the limited power 24VDC at its TB3.
However, 1 PAC-SC51KUA supplies transmission power at its
TB2 equal to 5 Indoor units, which is referable at Table 2.
If System controller, ON/OFF controller connected to TB7 consume
transmission power more than 5 (Indoor units), Transmission
booster PAC-SF46EPA-G is needed. PAC-SF46EPA-G supplies
transmission power equal to 25 Indoor units.
CAUTION
■ How to connect system controllers (AE-200A, AE-50A, EW-50A, BAC-HD150, LM-AP) to a given system
System controllers (AE-200A, AE-50A, EW-50A, BAC-HD150, LM-AP) have a built-in function to supply
power to the M-NET transmission lines, so no power needs to be supplied to the M-NET transmission lines
from the Outdoor/Heat source units or from PAC-SC51KUA.
Leave the power supply connector on the Outdoor/Heat source unit connected to CN41 as it is.
Refer to 11-3-2 for information about the power-supply capacity of each system controller
(EW-50A, BAC-HD150, LM-AP) to the low-level system controllers.
MEES19K180
Hyper Heating Inverter R2-Series
Fig. 11-3-3-A
M-NET transmission lines
(Indoor-Outdoor/Heat source transmission lines)
Outdoor
/Heat source
unit Group
TB3
TB7
Replacement of
CN41 with CN40
M-NET transmission lines
(transmission lines
MA remote controller
for central controller)
Outdoor
/Heat source
unit
Group
TB3
TB7
Use CN41
as it is.
ME remote controller
System
controller
Fig. 11-3-3-B
M-NET transmission lines
(Indoor-Outdoor/Heat source transmission lines)
Outdoor
/Heat source
Group
unit
TB3
TB7
Replacement of
CN41 with CN40
M-NET transmission lines
(transmission lines
MA remote controller
for central controller)
Outdoor
/Heat source
unit Group
TB3
TB7
Use CN41
as it is.
ME remote controller
System
controller
Fig. 11-3-3-C
M-NET transmission lines
(Indoor-Outdoor/Heat source transmission lines)
Outdoor
/Heat source
Group
unit
TB3
TB7
Use CN41
as it is.
M-NET transmission lines
(transmission lines
MA remote controller
for central controller)
Outdoor
/Heat source
unit Group
TB3
TB7
Use CN41
as it is.
PAC-SC51KUA
ME remote controller
System
controller
Fig. 11-3-3-D
M-NET transmission lines
(Indoor-Outdoor/Heat source transmission lines)
Outdoor
/Heat source
unit
TB3
TB7
Use CN41
as it is.
M-NET transmission lines
(transmission lines
MA remote controller
for centralized controller)
Outdoor
/Heat source
unit
TB3
TB7
Use CN41
as it is.
ME remote controller
System
controller
System
controller
Group
Indoor unit
Group
Indoor unit
Group
Indoor unit
Group
Indoor unit
Group
Indoor unit
Group
Indoor unit
Group Group
Indoor unit
Group Group
Indoor unit
86