Mitsubishi Electric PUMY-P100VHM Technical & Service Manual page 71

9-3. DESIGN FOR CONTROL WIRING
Please note that the types and numbers of control wires needed by the CITY MULTI-S series will depend on the remote
controllers and whether they are linked with the system.
9-3-1. Selection number of control wires
Remote controller
Wires connecting
Wires connecting
Wires connecting
9-3-2. Control signal wires
Transmission wires
• Types of transmission cables : Shielding wire CVVS or CPEVS.
• Cable diameter : More than 1.25E
• Maximum wiring length : Within 200 m
9-3-3. M-NET Remote controller wiring
Kind of remote control cable
Cable diameter
Remarks
9-3-4. MA Remote control cables
Kind of remote control cable
Cable diameter
9-4. SYSTEM SWITCH SETTING
In order to identify the destinations of signals to the outdoor units, indoor units, and remote controller of the MULTI-S
series, each microprocessor must be assigned an identification number (address). The addresses of outdoor units, indoor
units, and remote controller must be set using their settings switches. Please consult the installation manual that comes with
each unit for detailed information on setting procedures.
9-5. EXAMPLE EXTERNAL WIRING DIAGRAM FOR A BASIC SYSTEM
9-5-1. Example using a M-NET remote controller
Breaker for Wiring
and Current Leakage
Power supply
Single phase
50Hz 220-230-240V
60Hz 220V
15A Breaker for Wiring
and Current Leakage
Power supply
Single phase.
50Hz 220-230-240V
60Hz 220V
[1.6mm
Use
indoor unit
indoor units
indoor units with outdoor unit
outdoor units
Shielding wire MVVS
0.5 to 1.25E
When cable exceeds 10m, use cable with the same
specifications as 9-3-2.
2-core cable (unshielded)
0.3 to 1.25 e
Outdoor
unit
Pull box
2
1.25mm 2
2
[1.6mm 2
Indoor unit
2
0.5~1.25mm
Remote controller used in system control operations.
• Group operation involving different refrigerant systems.
• Linked operation with upper control system.
2 wires (non-polar)
Grounded
2
71
M-NET remote controller
Group operation
Remote controller wire