2-3.System Configuration Restrictions - Mitsubishi Electric CITY MULTI PEFY-P22VMS-E-S Data Book

2. M-NET control
2-3. System configuration restrictions
2-3-1. Common restrictions for the CITYMULTI system
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-RDH 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-30MAAC 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 3 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-B.
*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.
2-3-2. Ensuring proper communication power for M-NET
In order to ensure proper communication among Outdoor unit, Indoor unit, LOSSNAY, and OA processing unit
GUF-RDH, and Controllers, the transmission power situation for the M-NET should be observed. In some cases,
Transmission booster should be used. Taking the power consumption of Indoor unit sized P15-P140 as 1, the equivalent
power consumption or supply of others are listed at Table 2-3-1 and Table 2-3-2.
Table 2-3-1 The equivalent power consumption
Indoor, OA unit Indoor unit
Sized P15-P140
Sized P200,P250
GUF-50
1 7
*RC : Remote Controller
Table 2-3-2 The equivalent power supply
Transmission Booster Power supply unit
PAC-SF46EPA PAC-SC51KUA
25 5
With the equivalent power consumption values in Table 2-3-1 and Table 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-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 unit sized
P200, 250 is counted as 7 Indoor units, but MA remote controller(s) and LOSSNAY are NOT counted.
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 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 PAC-SF46EPA should be set.
System example
TB7 TB3
Outdoor unit
M-NET
Advanced touch
controller
(AT-50A)
Power supply unit
PAC-SC51KUA
Transmission booster (No.2) should be used,
if the total equivalent transmission power consumption reaches 5.
MA RC. LOSSNAY ME Remote Contr. System Contr. ON/OFF Contr.
PAR-30MAAC PAR-F27MEA AT-50A
PAR-21MAA PAC-SE51CRA
PAC-YT51CRB PZ-52SF-E
PAR-FA32MA
LGH-RX-E
0 1/4
BM ADAPTER Outdoor unit
BAC-HD150 Connector TB3 and TB7 total *
6
01
ME remote
controller
N1
Transmission booster (No.1) should be used,
if the total quantity of Indoor units, OA process units and ME remote controllers
reaches 40, (Indoor unit sized P200, 250 is counted as 7);
or if the total equivalent transmission power consumption reaches 32.
LOSSNAY
unit
PZ-52SF-E
N3
SYSTEM DESIGN
MN Converter
PAC-YT40ANRA CMS-MNF-B
4 1 1/2
Outdoor unit
Connector TB7 only
32 6
UP
MODEL TRANSMISSION BOOSTER
POWER RATING PAC-SF46EPA 220-240V:0.7A ~/N
WEIGHT 3.4kg 50
MADE IN JAPAN
Transmission
02
booster
(No.1)
UP
TRANSMISSION BOOSTER
MODEL POWER RATING PAC-SF46EPA 220-240V:0.7A ~/N
WEIGHT 50 3.4kg
MADE IN JAPAN
Transmission
booster LOSSNAY
PAC-SF46EPA unit
(No.2)
PZ-52SF-E
N4
Within N4, the total equivalent transmission
power consumption should not exceed 25.
CMS-MNG-E
2
ME remote
controller
N2
Within N2, conditions 1,2 should be followed.
1.The total quantity of Indoor units, OA process units
and ME remote controller should not exceed 40.
*Indoor unit sized P200, 250 is counted as 7 units.
2.The total equivalent transmission power consumption
should not exceed 25.
C7-R Rev.
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