Mitsubishi PUHY-EP250 - Single Refrigerant System with Two or more LOSSNAY Units

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[2-7 Example System with an MA Remote Controller ]
GBHWE12050
2-7-2 Single Refrigerant System with Two or More LOSSNAY Units
(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. It is not possible to connect a
pair of PAR-31MAA.
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 200 model or above is connected) are con-
nected.
Refer to the DATABOOK for further information about
how many booster units are required for a given system.
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as 2-7-1
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Same as 2-7-1
L2
TB3
51 52
TB7
S
TB3
TB7
S
IC
TB5
S
TB
15
1 2
01
IC
TB5
S
TB
15
1 2
02
A B
MA
A B
MA
LC
TB5
S
05
IC
TB5
S
1 2
TB
15
IC
TB5
S
TB
15
1 2
04 03
LC
TB5
S
06
A B
MA
Group Group
Group
M1 M2 M1 M2 M1 M2
M1 M2 M1 M2 M1 M2
L11
L3 L4
L12 L13
53
TB7
M1 M2 M1 M2 M1 M2 M1 M2 M1 M2 M1 M2 S
TB3
L1
OC OS1 OS2
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Interlock operation with
the ventilation unit
m1
m2
m3