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2. M-NET wiring design

 

(1) M-NET transmission cable specifications and restrictions

 

Facility type 

All facility types 

 

Type

 

Shielded cable

Cable 

 

CVVS CPEVS MVVS

Specifications  No. of cores 

2-core

 

Size

 

CVVS, MVVS: 1.25 mm² (AWG16) or larger

 

 

CPEVS: ø1.2 mm (AWG16 or its equivalent) or larger

Maximum indoor-outdoor transmission cable length 

200 m [656 ft]

500 m [1640 ft]

*The maximum cable distance from the power supply unit to each 

outdoor unit or to the system controller is 200 m [656 ft]. 

Maximum length of transmission line for centralized 
control and indoor-outdoor transmission cables
(Maximum cable distance via outdoor unit)

Main system controller 2

Group

Group

Group

Sub system controller

Group

Main system controller 2

Main system controller 1

Group

Group

Group

Sub system controller

Main system controller

Touch Controller is for exclusive use as a Main system Controller and cannot be used as a Sub system controller. The system cannot 

be configured as shown in the examples below.

Note

 

►Groups

 that are not controlled by a main controller cannot be 

controlled from a sub controller.

Group

Group

Group

Main system controller 1

 

►Each group cannot be controlled by two or more main 

controllers.

 

►Sub controllers cannot be controlled by two or more main controllers.

 

*Exception:

Although AG-150A series and TC-24A are both designed for use as the main system controllers, they can be used in combination 

with each other. When using them in combination, make the group settings from both controllers. Enter the address from each 

controller in the field for registering the address of the system controller in each group. 

Address setting

Assign the lowest address to the main indoor unit in the group, and assign sequential addresses 
to the rest of the indoor units in the same group.
Note: The following models require two addresses: PEFY-AF1200CFM and PEFY-AF1200CFM-R
Assign an address that equals the lowest indoor unit address in the same refrigerant system plus 
50.
Assign an address that equals the address of the outdoor unit in the same refrigerant system 
plus 1.
Assign an arbitrary but unused address to each Lossnay unit after assigning an address to all 
indoor units.
Same rules as for the indoor units apply. An M-NET adapter (sold separately) is required.
Same rules as for the indoor units apply. An M-NET interface (sold separately) is required.
Assign an address that equals the address of the main indoor unit with the lowest address in the 
group plus 100. Add 150 instead of 100 to set a sub-remote controller.
Assign an address that equals the lowest number of the group to be controlled plus 200.
Assign an arbitrary but unused address to the controller after completing the address setting for the units 
with an address between 1 and 50. The number of controllable units depends on the number of channels 
used. (1 channel = I unit) 
Address setting is not required. The connection of two remote controllers requires the main/sub setting 
for each controller to be made.

Address range

1~50

51~100

52~100

1~50

1~50
1~50

101~200

201~250

1~50

Indoor unit

Outdoor unit

Auxiliary outdoor unit
(BC controller)

LOSSNAY unit

Mr. Slim® unit
MXZ unit

M-NET remote controller

Sub system controller

DIDO 
(PAC-YG66DCA)

MA remote controller

Address settings (Address overlaps are not allowed.)

Summary of Contents for TC-24A

Page 1: ...ate safety measures against earthquakes to prevent the controller from causing injury To prevent injury install the controller on a flat surface strong enough to support its weight To reduce the risk of fire or explosion do not place flammable materials or use flammable sprays around the controller To reduce the risk of damage to the controller do not directly spray insecticide or other flammable ...

Page 2: ...the detergent with a wet cloth and wipe off water with a dry cloth Take appropriate measures against electrical noise interference when installing the air conditioners in hospitals or facilities with radio communication capabilities Inverter high frequency medical or wireless communication equipment as well as power generators may cause the air conditioning system to malfunction Air conditioning s...

Page 3: ...through the M NET transmission line to maintain communica tion during power failure Refer to the CITY MULTI DATABOOK for details The total power consumption of the connected devices should not exceed the capacity of the power supply units The Design Tool by MITSUBISHI ELECTRIC allows its user to design air conditioning systems easily TC 24A is compatible with the Design Tool version 3 71 or later ...

Page 4: ...the field for registering the address of the system controller in each group Address setting Assign the lowest address to the main indoor unit in the group and assign sequential addresses to the rest of the indoor units in the same group Note The following models require two addresses PEFY AF1200CFM and PEFY AF1200CFM R Assign an address that equals the lowest indoor unit address in the same refri...

Page 5: ... b Wall surface installation b 1 To route the cable through the wall b 2 To route the cable along the wall surface 4 Preparation 1 Install a breaker on the power supply unit side before installing the controller 2 Select an installation site for the Touch Controller Install the controller at the user s eye level for easy operation Ensure there is enough clearance space as shown in the figure at ri...

Page 6: ...the detergent with a wet cloth and wipe off water with a dry cloth Take appropriate measures against electrical noise interference when installing the air conditioners in hospitals or facilities with radio communication capabilities Inverter high frequency medical or wireless communication equipment as well as power generators may cause the air conditioning system to malfunction Air conditioning s...

Page 7: ...remote controller will not be allowed and the ON OFF and Prohibit Permit settings on the Touch Controller cannot be changed Timer operation will not function ON OFF operation from the local remote controller will not be allowed and the ON OFF and Prohibit Permit settings on the Touch Controller cannot be changed Timer operation will not function The ON signal pulse width should be set to a value b...

Page 8: ...ing unit will not be automatically restored The air conditioning units must be started up manually If the type of signal assigned to the external input contact is ON OFF the units that are stopped will start operation after the input signal changes from OFF to ON Conversely the units that are in operation will stop after the input signal changes from ON to OFF B Pulse signal If the incoming signal...

Page 9: ...lect a power supply suitable for the relays used 12 VDC or 24 VDC 2 Use a diode at each end of the relay coil Each element will turn on when an error occurs during operation The maximum length of extension cable is 10 m 32 ft Use a cable of 0 3 mm 22AWG or thicker Insulate the area with vinyl tape where the controller cable and the extension cable are connected Relays lamps diode extension cables ...

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