Mitsubishi Electric CMB-WM108V-AA Service Handbook page 50

[ II Restrictions ]
-2- Single Refrigerant System with Two or More LOSSNAY Units
(1) Sample control wiring
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
OC
51
TB3
M1 M2
M1 M2
(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.
When a PAR-CT01MA series, PAR-4"x"MA series, or PAR-
3"x"MA series ("X" represents 0 or later) is connected to a
group, no other MA remote controllers can be connected to the
same group.
3) When the number of the connected indoor units is as shown in
the table below, one or more transmission boosters (sold sepa-
rately) are required.
To connect two transmission boosters, connect them in parallel.
(Observe the maximum number of connectable indoor units that
are listed in the specifications for each outdoor unit.)
Number of transmission booster (sold separately) required
1 unit
25 - 50 units
HWE1708A
L1 L2
Group
HB
53
TB02
TB7
S M1 M2 S
M1 M2 S
TB02
57
HS
* If the HB address overlaps any of the addresses that are assigned to either the OC or HS, use a different, unused address.
OC and HB addresses (lowest indoor unit address in the group plus +50) have higher priority than the HS address.
2 units
–
Single Refrigerant System with Two or More LOSSNAY Units
Interlock operation with the ventilation unit
L3
Group
IC IC
01 02
TB5 TB15 TB5
M1M2 M1M2
S 1 2 S
A1 B2
MA
L12
Group
IC IC
03 04
TB5 TB15 TB5 TB15
M1M2 S 1 2 M1M2 S
A1 B2
MA
m3
IC IC
07 08
TB5 TB15 TB5 TB15
M1M2 M1M2
S 1 2 S
A1 B2 A1 B2
MA
The table above shows the number of transmission boost-
ers that is required by the system with four HBC controllers.
For each HBC controller added or subtracted, subtract or
add two indoor units.
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 [7] -1-
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Same as [7] -1-
- 41 - 41
L4
LC
05
TB15 TB5
M1M2
1 2 S
A1 B2
MA
L13
LC
06
TB5
1 2 M1M2 S
1 2
MA
GB