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Mitsubishi P240 User Manual

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[ 
II  Restrictions ]
GB
HWE09120
3.  Group operation of units in a system with multiple outdoor units
(1) Sample control wiring
(2) Cautions
1)   ME remote controller and MA remote controller can not 
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)   Do not connect the terminal blocks (TB5) on the indoor 
units that are connected to different outdoor units with 
each other.
4)   Replacement of male power jumper connector (CN41) 
must be performed only on one of the outdoor units.
5)   Provide grounding to S terminal on the terminal block for 
transmission line for centralized control (TB7) on only 
one of the outdoor units.
6)   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.
(3)  Maximum allowable length
1)   Indoor/outdoor transmission line
Maximum distance (1.25mm
2
 [AWG16] or larger)
L11+L12
200m [656ft]
L21+L22
200m [656ft]
2)   Transmission line for centralized control
L21+L31
200m [656ft]
3)   MA remote controller wiring
Same as [5] 1.
4)   Maximum line distance via outdoor unit 
(1.25mm
2
 [AWG16] or larger)
L12(L11)+L31+L22(L21)
500m [1640ft]
IC 
TB5 
S 
TB15 
1 2 
01 
IC 
TB5 
S 
TB15 
1 2 
03 
A B 
MA 
A B 
MA 
LC 
TB5 
S 
07 
IC 
TB5 
S 
1 2 
TB15 
IC 
TB5 
S 
TB15 
1 2 
1 2 
04 
02 
IC 
TB5 TB15 
S 
05 
A B 
MA 
IC 
TB5 
S 
TB15 
1 2 
06 
A B 
MA 
Group 
Group 
Group 
Group 
M1 M2 M1 
M2 M1 
M2 M1 
M2 
M1 M2 
M1 M2 
M1 M2 
m2 
m3 
Interlock operation with 
the ventilation unit 
L12 
L22 
L11 
L21 
OC 
TB3 
TB7 
S 
51 
To be connected
To be left 
unconnected
To be left 
unconnected
OS1 
TB3 
TB7 
S 
52 
OS2 
TB3 
TB7 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
S 
53 
OC 
TB3 
TB7 
S 
54 
OS1 
TB3 
TB7 
S 
55 
OS2 
TB3 
TB7 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
S 
56 
L31 
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 
Leave the male 
connector on 
CN41 as it is. 
SW2-1 OFF 
Leave the male 
connector on 
CN41 as it is. 
SW2-1 OFF 
SW2-1 OFF
Move the male connector 
from CN41 to CN40.
To be left 
unconnected
To be left 
unconnected
To be left 
unconnected