3
2. Before Installation

2.1. How to Use the M-NET Interface

Caution
When using a packaged air conditioner (city-multi) system remote controller, you cannot register packaged air condi-
tioners and room air conditioners in the same group. In this case, register the Packaged and room air conditioner in
different groups.
■Functions
Centralized and individual management of M/P/S series using M-NET(*).
* A type of packaged air conditioner control (city-multi)
■Related Products Sold Separately
• ME Remote Controller PAR-F27MEA
• Centralized Controller G-50A
• System Remote Controller PAC-SF44SRA
• ON/OFF Remote Controller PAC-YT40ANRA
• Schedule Timer (M-NET) PAC-YT34STA
• Power supply unit PAC-SC50KUA
■Sample of System Configuration (only M/S series outdoor-unit)
Sample configuration of a system using a centralized controller
1Centralized controller (M-NET)
2Power supply unit
3Packaged air conditioner system
4M-NET Interface
5Indoor unit
6ME Remote Controller
* The number of units that can be connected to the
centralized controller (G-50A) is max. 50, including
packaged and room air conditioners. The wiring
from the M-NET Interface to the centralized
controller can have a maximum length of 500 m.
The wiring from the M-NET Interface to the ME
Remote Controller can have a maximum length of
10 m.
For details, see the MELANS Catalog and the
instruction manuals for the Centralized Controller
and ME Remote Controller.

2.2. Accessory

Before installing the device, make sure you have all the necessary parts.
■Accessory
1Interface unit (with 5-core connecting cable) 1
2Mounting brackets 1
3Screws for mounting 2 3.5×12 4
4Cushioning material (with adhesive) 1
5Cord clamp for mounting (small) 2
6Mounting cord clamp (large) 2
7Screws for mounting 5 and 6 3.5×12 2
8
Screw for mounting 5 and 6 4×10
1* Use this when mounting cord clamp to and around M
series.
9
Screw for mounting 5 and 6 4×16
1* Use this when mounting cord clamp together with the
parts of M series.
0Cable ties 4
AFasteners (for joining the lead wires) 5
BCord clamp for wiring 5
CScrews for mounting B 3.5×12 5
DInterface case mounting screws 3.5×12 2
■Items to Prepare at the Installation Site
AConnection wiring (centralized controller)
Shield wiring CVVS/CPEVS
BConnection wiring (for connecting the ME Remote Controller)
Remote control wires (2-core sheath wire 0.3 mm2)
Related parts sold separately
C* Prepare the necessary number of parts sold separately as needed
for your system.
13
2
6
6
4
4
5
5
* CPEVS
;
PE insulated PVC jacketed shielded communication cable
* CVVS; PVC insulated PVC jacketed shielded control cable
PE: Polyethylene PVC: Polyvinyl chloride