Example System With An Ma Remote Controller; Single Refrigerant System (Automatic Indoor/Outdoor Address Startup) - Mitsubishi Electric HP120TNU-A Service Handbook

[2-7 Example System with an MA Remote Controller ]

2-7

Example System with an MA Remote Controller

2-7-1

Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)

(1) Sample control wiring
L1
Leave the male
Leave the male
connector on connector on
CN41 as it is. CN41 as it is.
SW5-1 OFF
SW5-1 OFF
OS OC
00 00
TB3 TB7 TB3
M1 M2 M1 M2 S M1 M2
*1. When BS is connected to the system,
automatic address setup is not available.
(2) Cautions
1) ME remote controller and MA remote controller cannot both
be connected to the same group of indoor units.
2) No more than 2 MA remote controllers can be connected to
a group of indoor units.
3) When the number of the connected indoor units is as shown
in the table below, one or more transmission boosters (sold
separately) are required.
To connect two transmission boosters, connect them in par-
allel. (Observe the maximum number of connectable indoor
units that are listed in the specifications for each outdoor
unit.)
When the P72 and P96 models are
not included in the connected indoor
units
When the P72 and P96 models are
included in the connected indoor
units
The table above shows the number of transmission boost-
ers that is required by the system with three BC controllers.
For each BC controller added or subtracted, subtract or add
two indoor units.
4) Automatic address setup is not available if start-stop input
(CN32, CN51, CN41) is used for a group operation of indoor
HWE18220_GB
L2 L3
Group
BC
00
TB7 TB02
M1 M2 S M1 M2 S
*1
M1M2 S
TB02
00
Group
BS
A1 B2
A1 B2
MA
MA
Number of transmission booster
(sold separately) required
1 unit 2 units
27 - 50 units -
21 - 39 units 40 - 50 units
L4
Group
IC IC
00 00
TB5 TB15 TB5 TB15
M1 M2 S 1 2 M1 M2 S 1 2
A1 B2 A1 B2 A1 B2
MA RC MA
L12
Group
IC IC
00 00
TB5 TB15 TB5 TB15
M1 M2 M1 M2
S 1 2 S 1 2
A1 B2 A1 B2
MA MA
units or when multiple indoor units with different functions
are grouped in the same group. Refer to the following
page(s). [2-7-2 Single Refrigerant System with Two or More
LOSSNAY Units]
5) For information about connecting two or more LOSSNAY
units to a system, refer to the following page(s). [2-7-2 Sin-
gle Refrigerant System with Two or More LOSSNAY Units]
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L1 +L2+L3+L4+L5 200m[656ft]
L1 +L2+L3+L11+L12+L13 200m[656ft]
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Maximum overall line length
2
(0.3 to 1.25mm [AWG22 to 16])
m1 200m [656ft]
m2+m3 200m [656ft]
m4+m5 200m [656ft]
*When connecting PAR-31MAA or MA Simple remote
controller, use sheathed cables with a minimum thick-
2
ness of 0.3 mm .
Interlock operation with
the ventilation unit
L5
LC
00
TB5
M1 M2 S
L13
IC
00
TB5 TB15
M1 M2 S 1 2
m3
2
[AWG16] or larger)
chapter 2 -
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