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[ II Restrictions ]
27- 27 -
HWE09080 GB
[5] An Example of a System to which an MA Remote Controller is connected
1. System with one heat source unit (automatic address setup for both indoor and heat source units) <PQHY>
(1) Sample control wiring
(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) A transmission booster is required in a system to which
more than 32 indoor units (26 units if one or more indoor
units of the 72 model or above is connected) are con-
nected.
4) Automatic address setup is not available if start-stop in-
put (CN32, CN51, CN41) is used for a group operation of
indoor units. Refer to "[5] 2. Manual address setup for
both indoor and heat source units".(page 29)
5) To connect more than 2 LOSSNAY units to indoor units
in the same system, refer to the next section "[5] 2. An
example of a system with one heat source unit to which
2 or more LOSSNAY units are connected".(page 29)
(3) Maximum allowable length
1) Indoor-heat source transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
L1 +L2+L3+L4 200m[656ft]
L1 +L2+L11+L12+L13 200m[656ft]
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
2
[AWG22 to 16])
m1 200m [656ft]
m2+m3 200m [656ft]
m4+m5 200m [656ft]
IC
TB5
S
TB
15
1 2
00
IC
TB5
S
TB
15
1 2
00
A B
MA
A B
MA
A B
RC
LC
TB5
S
00
IC
TB5
M1 M2 M1 M2 M1 M2
M1 M2 M1 M2 M1 M2
S 1 2
TB
15
IC
TB5
S
TB
15
1 2
00 00
IC
TB5
S
TB
15
1 2
00
A B
MA
A B
MA
A B
MA
A B
MA
m1
L11
m2
L3 L4
L12 L13
m3
m5
m4
Interlock operation with
the ventilation unit
TB3
00 00
TB7
S
TB3
00
TB7
M1 M2 M1 M2 M1 M2 M1 M2 M1 M2 M1 M2
S
TB3
TB7
S
OC
OS1 OS2
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Group Group
Group Group
L2 L1