An Example Of A System To Which Both Ma Remote Controller And M-Net Remote Controller Are Connected - Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook

[ II Restrictions ]

[6] An Example of a System to which both MA Remote Controller and M-NET Remote Controller are connected

In the case of R2
CN41 CN40
L1
Replace
SW2-1 OFF ON
OC
Note1
51
TB7 TB3
M1M2 S M1M2
Connect
In the case of R2
Leave the male
connector L21
on CN41 as it is.
SW2-1 OFF ON
Note1
OC
53
TB7 TB3
M1M2 S M1M2
NO
Note1 When only the LM adapter is connected,
leave SW2-1 to OFF (as it is).
Note2 LM adapters require the power supply
capacity of single-phase AC 208/230V.
Don'ts
1. Be sure to connect a system controller.
2. M-NET remote controller and MA remote controller cannot
both be connected to the same group of indoor units.
3. No more than 2 M-NET remote controllers can be connected
to a group of indoor units.
4. No more than 2 MA remote controllers can be connected to
a group of indoor units.
5. Do not connect the terminal blocks (TB5) on the indoor units
that are connected to different outdoor units with each other.
6. Replacement of male power supply switch connector
(CN41) must be performed only on one of the outdoor units.
7. Provide grounding to S terminal on the terminal block for
transmission line for centralized control (TB7) on only one of
the outdoor units.
8. A transmission booster must be connected to a system in
which the total number of connected indoor units exceeds
20 (19 with one BC, 18 with one BC and BS each).
9. A transmission booster must be connected to a system to
which more than 16 indoor units (15 with one BC, 14 with
one BC and BS each) including one or more indoor units of
72 model or above are connected.
Sample control wiring
In the case of Y
CN41 CN40 Replace
L2
SW2-1 OFF ON
Note1
OC
*1 BC
51
55
TB02 TB7
M1M2 S M1M2 S
Connect
M1M2 S
TB02
52
*1 BS
In the case of Y
Leave the male connector
L22
on CN41 as it is.
SW2-1 OFF ON
Note1
OC
*1 BC
53
54
TB02 TB7
M1M2 S M1M2 S
NO
System controller
M1M2 S
L2 L3
Group Group
IC IC
01 02
TB3 TB5 TB15 TB5
M1M2
M1M2 S 1 2 M1M2 S
A1 B2
MA
L22 L23
Group
IC IC
03 05
TB5 TB5 TB15
TB3 TB15
M1M2 M1M2 S 1 2 M1M2 S
A1 B2 A1 B2
105
MA
RC
Note2
*1 BC and BS are found only in the R2 system.
Maximum allowable length
(1) Indoor/outdoor transmission line
Same as [4] 3.
(2) Transmission line for centralized control
Same as [4] 4.
(3) MA remote controller wiring
Same as [4] 1.
(4) M-NET remote controller wiring
Same as [4] 1.
- 50 -
L4
IC
04
TB15 TB5 TB15
1 2 M1M2 S 1 2
A1 B2
104
RC
NO
L24
Group
IC
06
TB5 TB15
1 2 M1M2 S 1 2