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2. M-NET control
YKB/YLM 2nd
S.D. R2
MEE15K022
2-3. System configuration restrictions
2-3-1. Common restrictions for the CITYMULTI system
T
able 2-3-1 The equivalent power consumption
T
able 2-3-2 The equivalent power supply
For each Outdoor unit, the maximum connectable quantity of Indoor unit is specified at its Specifications table.
A) 1 Group of Indoor units can have 1-16 Indoor units;
*OA processing unit GUF-RD(H) is considered as Indoor unit.
B) Maximum 2 remote controllers for 1 Group;
*MA/ME remote controllers cannot be present together in 1group.
*When a PAR-31MAA(E) is connected to a group, no other MA remote controllers can be connected to the same group.
C) 1 LOSSNAY unit can interlock maximum 16 Indoor units; 1 Indoor unit can interlock only 1 LOSSNAY unit.
D) Maximum 3 System controllers are connectable when connecting to TB3 of the Outdoor unit.
E) Maximum 6 System controllers are connectable when connecting to TB7 of the Outdoor unit, if the transmission
power is supplied by the Outdoor unit.
F) 4 System controllers or more are connectable when connecting to TB7 of the Outdoor unit, if the transmission
power is supplied by the power supply unit PAC-SC51KUA. Details refer to 2-3-3-C.
*System controller connected as described in D) and E) would have a risk that the failure of connected Outdoor
unit would stop power supply to the System controller.
In order to ensure proper communication among Outdoor unit, Indoor unit, LOSSNAY
, and OA processing unit
GUF-RD(H), and Controllers, the transmission power situation for the M-NET should be observed. In some cases,
Transmission booster should be used. T
aking the power consumption of Indoor unit sized P15-P140 as 1, the equivalent
power consumption or supply of others are listed at T
able 2-3-1 and T
able 2-3-2.
System Controller
*RC : Remote Controller
Transmission Booster
25
P
AC-SF46EPA
Power supply unit
5
PAC-SC51KUA
Expansion controller
6
PAC-YG50ECA
Outdoor unit
32
Connector TB3 and TB7 total *
Outdoor unit
6
Connector TB7 only
*If P
AC-SC51KUA is used to supply power at TB7 side, no power supply need from Outdoor unit at TB7, Connector TB3 itself will therefore have 32. Not
applicable to the PUMY model.
*1 AE-200E/AE-50E has a built-in function to supply power to the M-NET transmission line. The amount of power that an AE-200E or an AE-50E can supply is
equivalent to the power required by an MN converter (CMS-MNG-E) that is used for maintenance.
2-3-2. Ensuring proper communication power for M-NET
BM ADAPTER
6
BAC-HD150
1.5
EW-50E
0
*1
AE-200E/AE-50E
System example
Power supply unit
PAC-SC51KUA
ME remote
controller
ME remote
controller
LOSSNAY
unit
24VDC
M-NET
02
01
if the total quantity of Indoor units, OA processing units and ME remote controllers
reaches 40, (Indoor units sized P200 and 250 are counted as 2);
or if the total equivalent transmission power consumption reaches 32.
N1
N3
N2
Transmission booster (No.1) should be used,
1.The total quantity of Indoor units, OA processing units
and ME remote controller should not exceed 40.
*Indoor units sized P200 and 250 are counted as 2 units.
2.The total equivalent transmission power consumption
should not exceed 25.
Within N2, conditions 1,2 should be followed.
TB7
TB3
Transmission
booster
(No.1)
Indoor, OA unit
Indoor unit
MA RC. LOSSNAY
PWFY
ME Remote Contr.
System Contr.
ON/OFF Contr.
1
7
0
0
0.25
0.5
0.5
4
1
2
0
Sized
P15-P140
GUF-50, 100
Sized
P200, P250
BC
controller
2
6
1
5
CMB
PAR-31MAA(E)
PAC-YT52CRA
PAR-FA32MA
LGH-RVX-E
PZ-61DR-E
PZ-43SMF-E
PAC-YG60MCA
PAC-YG66DCA
PAC-YG63MCA
PAR-U02MEDA
PAC-IF01AHC
AG-150A
EB-50GU-J
AE-200E
AE-50E
PAC
-YT40ANRA
TB7
power
consumption
CMS-MNG-E
MN Converter
Outdoor unit
AT-50B
0
EW-50E
With the equivalent power consumption values in T
able 2-3-1 and T
able 2-3-2, PAC-SF46EPA can be designed into the
air-conditioner system to ensure proper system communication according to 2-3-2-A, B, C.
2-3-2-B) Secondly, count from TB7 side to TB3 side the total transmission power consumption. If the total power consumption
reaches 32, a PAC-SF46EPA should be set. Yet, if a PAC-SC51KUA or another controller with a built-in power supply,
such as PAC-YG50ECA, is used to supply power at TB7 side, count from TB3 side only.
2-3-2-C) Thirdly, count from TB7 at TB7 side the total transmission power consumption, If the total power consumption reaches
6, a P
AC-SF46EPA should be set.
2-3-2-A) Firstly, count from TB3 at TB3 side the total quantity of Indoor units, OA processing units, ME remote controller, and
System controllers. If the total quantity reaches 40, a PAC-SF46EPA should be set. In this case, Indoor units sized
P200 and 250 are counted as 2 indoor units, but MA remote controller(s), PZ-61DR-E, and PZ-43SMF-E are NOT counted.
Outdoor unit
TB7
TB3
P100VM
-E-BU
P100VM
-E1-AU
P100VM
-E2-AU
P200VM
-E1-AU
P200VM
-E2-AU
Centralized controller
(AG-150A)
