Group Operation Of Units In A System With Multiple Outdoor Units - Mitsubishi Electric PUHY-P200 Service Handbook
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Also See for PUHY-P200:
- Service handbook (334 pages) ,
- Service handbook (182 pages) ,
- Service handbook (40 pages)
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[ II Restrictions ]
3. Group operation of units in a system with multiple outdoor units
(1) Sample control wiring
Leave the male
Leave the male
connector on
connector on
CN41 as it is.
CN41 as it is.
SW2-1 OFF
SW2-1 OFF
OS2
53
TB3
M1 M2
TB7
M1 M2
S
To be left
unconnected
Leave the male
Leave the male
connector on
connector on
CN41 as it is.
CN41 as it is.
SW2-1 OFF
SW2-1 OFF
OS2
56
TB3
M1 M2
TB7
M1 M2
S
To be left
unconnected
(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) 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 200 model or above is connected) are con-
nected.
HWE10040
L11
Move the male connector
Group
from CN41 to CN40.
SW2-1 OFF
OS1
OC
52
51
TB3
TB3
M1 M2
M1 M2
TB7
TB7
M1 M2
M1 M2
S
S
To be left
unconnected
To be connected
L21
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
OS1
OC
55
54
TB3
TB3
M1 M2
M1 M2
TB7
TB7
M1 M2
S
M1 M2
S
To be left
unconnected
To be left
unconnected
L12
Group
IC
IC
01
03
TB5
TB15
TB5
M1 M2
M1 M2
S
1 2
S
A B
MA
L22
Group
IC
02
04
TB5
TB5
TB15
M1 M2
S
1 2
M1 M2
S
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L11+L12 200m [656ft]
L21+L22 200m [656ft]
2) Transmission line for centralized control
L31+L21 200m [656ft]
3) MA remote controller wiring
Same as [5] 1.
4) Maximum line distance via outdoor unit
2
(1.25mm
[AWG16] or larger)
L12(L11)+L31+L22(L21) 500m [1640ft]
- 32 -
Interlock operation with
the ventilation unit
Group
IC
06
TB15
TB5
TB15
TB5
M1 M2
M1 M2
1 2
S
1 2
S
A B
A B
MA
MA
IC
IC
05
TB15
TB5
TB15
1 2
M1 M2
S
1 2
A B
MA
2
[AWG16] or larger)
LC
07
GB
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