Ｍ
1
Ｍ
2
Ｓ
BG79H744H03
M1 M2 S
CENTRALIZED CONTROL
Fixture
No.
Figure
Q’ty
Description
M-NET Board
Screw (M3
o
10)
Terminal block
(M-NET)
Terminal screw
(M4
o
25)
Label
Lead wire-A
(4 wires)
Lead wire-B
(2 wires)
Ground wire
and screw
(M4
o
8)
Fastener
Applicable models
Bad example (Multiple ground of shielded wire)
System
controller
Power supply
unit
Outdoor
unit (
w
1)
Outdoor
unit (
w
1)
System
controller
Power supply
unit
Outdoor
unit (
w
1)
Outdoor
unit (
w
1)
System
controller
Power supply
unit
Outdoor
unit (
w
1)
Outdoor
unit (
w
1)
M-NET transmit wire
M-NET transmit wire
M-NET transmit wire
NO
NO
NO
OK
OK (
w
2)
Good example (One spot ground of shielded wire)
Good example (One spot ground of shielded wire)
(
w
1) Refer to the appendix List of Models to check the applicable models.
(
w
1) Refer to the appendix List of Models to check the applicable models.
(
w
3) If the shield and earth are grounded in two or more locations, electrical circuit is generated through them, and a potential
difference is created because of the impedance difference between or among the ground locations. This may cause noise
in the shield. Ground at only one point, then no circuit is created and no noise gets in.
(
w
2) In case that the outdoor unit is grounded, connect the ground
wire supplied as accessory to the S terminal (secondary)
of M-NET terminal block and M-NET Ground terminal inside of
electric box with using screws supplied.
2
1
2
2
1
1
1
1
1
1each
2
Length:380
A
(15 in)
Length:530
A
(21 in)
Ｍ
1
Ｍ
2
Ｓ
Ｍ
1
Ｍ
2
Ｓ
(
w
2)
1.Parts List
Attention for M-NET connection
Pay attention to the next points for wiring of shielded wires.
CAUTION
The shielded wires of M-NET transmission should be
connected with the ground wire at any only one place
of the unit to be connected.
•It can cause the transmission error due to noise.
Centralized control remote controller reads “0403” “6607” error.
M-NET
terminal block
Color:Red
Color:White
Ground wire
(accessory)
Transmit
wire
Shielded
wire
Length:200
A
(8 in)
Summary of Contents for PAC-IF01MNT-E
Page 9: ......
