Connecting With M-Net System - Mitsubishi Electric MAC-334IF-E Manuel D'installation

8. Connecting with M-NET system

■ Connecting the SYSTEM CONTROL Interface to M-NET cable
The room air conditioner can be managed centralized or individually by the system controller using M-NET communications control.
Indoor unit
To connect with the system controller and ME remote controller, connect the M-NET communication cable
TB520. (It is unpolarized.) Connect 2 core communication cable with A1/B1 or A2/B2. (There will be no problems with connecting to either one.)
Cross the shield portion of each connecting cable using the S terminal only when cross wiring the communication cables
After wiring is complete, mount securely with any of mounting cord clamp
When the communication
cable cross-wired
S
Shield
Communication cable
(M-NET cable)
When the communication
cable
➐
Screw for mounting
➑
Cable tie
* To prevent penetration by condensation, insects, etc., seal the opening well with putty.
Notes
Electrical work should be performed in accordance with the Technical Standards Regarding Electrical Equipment and the Interior Wiring Standards.
together could cause a malfunction.
■ Setting when M-NET is connected
SW No. Address
M-NET address
10s position 1s position
0
SW510
SW501
SW510
Refrigerant address
SW580
6
B2 A2 B1 A1 S
TB520
TB521
SW580
0
SW501 SW510
0 0
➊
Interface unit
A1 B1 A2 B2
Communication cable Communication cable
(M-NET cable) (M-NET cable)
is not cross wired
➐
Screw for mounting
➑
Cable tie
Mounting cord
➏
clamp (Large)
➎
or (Medium)
Cut with nippers at the notches. Make sure the cut surface is free
of any burr so that the connecting cable does not get damaged.
SW510 sets the 10s position of the address and SW501 sets the 1s position of the address. (Address
setting can be set from 01 ~ 50.)
For example, to set a unit to the address 25, set SW510 to "2" and SW501 to "5."
* The figure to the left is for address 1.
SW501
When the MA remote controller is not used, set the refrigerant address (SW580) to "1."
SW580
B A S
Power supply unit
CN560
➍ ➏
to , and fix with cable tie
When the communication cable
wired and ME remote controller is used
A1 B1 A2 B2
S
Shield
ME remote controller
When the communication
cable are cross wired
Mounting cord clamp
➏
(Large) or (Medium)
Screw for mounting
➑
Cable tie
Comments
B A S
System controller,
etc.
or ME remote control cable
.
➑
as shown in the figure.
are cross
Note
When cross-wired by the
same terminal box, a 1.25 mm
[AWG 16] line is used.
ME remote controller cable
➎
➐
Screw for
➐
mounting
➑
Cable tie
em too closely
with
2
Mounting cord
➏
clamp (Large)
➎
or (Medium)
.