Permissible Lengths; Ma Remote Controller; M-Net Remote Controller; Example Of Transmission Cable Wiring: When Using A Branch Box - Mitsubishi Electric PUMY-P112VKM1 Installation Manual

6. Electrical work
<Permissible Lengths>

1 M-NET Remote controller

• Max length via outdoor units: L
1
• Max transmission cable length: L
1
• Remote controller cable length: ℓ
1
If the length exceeds 10 m, use a 1.25 mm
maximum length and overall length.

2 MA Remote controller

• Max length via outdoor unit (M-NET cable): L
• Max transmission cable length (M-NET cable): L
• Remote controller cable length: m
1
M-NET Remote Controller
OC
(51)
(01)
TB3
TB7
TB5
C or D
M1 M2 S M1 M2 S
M1 M2 S
L
2
A B
(101)
RC
L
3
OC
(53)
(03)
TB7
L
6 TB5
TB3
C or D
M1 M2 S
M1 M2 S M1 M2 S
Power Supply
Unit
M1 M2 S
TB7
System
controller
M1 M2 S
M1 M2 S
Fig. 6-2
A : Group
B : Group
C : Group
D : Shielded Wire
E : Sub Remote Controller
F : Screw on the electrical component box
( ): Address
<Example of Transmission Cable Wiring: When Using a Branch Box>
OC
(51)
L
TB3 1
TB7
M1 M2 S M1 M2 S
L
3
L
2
OC
(53)
TB7
L
4
TB3
M1 M2 S
M1 M2 S
Power Supply
Unit
M1 M2 S
DC24V
L
5 System
controller
M1 M2 S
G : Shielded wire
( ) : Address example
Fig. 6-4
+L +L +L and L +L +L +L and L +L
2 3 4 1 2 3 5 1
and L +L and L +L and L and L +L
3 4 3 5 6 2
, ℓ , ℓ +ℓ , ℓ 10 m (0.5 to 1.25 mm 2
2 2 3 4
+L +L +L and L +L +L +L
1 2 3 4 1 2 6
and L +L and L and L
1 3 4 6
and m +m +m and m +m +m +m
1 2 3 1 2 3 4
L
1
IC IC IC IC
(02) (05) (06)
TB5 TB5 TB5
M1 M2 S M1 M2 S
M1 M2 S
3
A B A B
(105) (155)
RC RC
L
4
IC IC
IC
(04) (07)
TB5 TB5
M1 M2 S M1 M2 S
A B
(104)
RC
TB3A TB3A TB15
Branch Box
1
S1 S1 IC
2
S2 S2
(01)
S3 S3
TB5 TB3B TB3A TB15
S1 1
M1 S1 IC
S2 2
M2 S2
(02)
S3 S3
S
TB3C TB15
TB3A
S1
S1 1
IC
S2 2
S2
(03)
S3
S3
(01)
TB3D TB3A
S1 S1
IC
S2 S2
(04)
S3 S3
TB3E
TB3A
S1
S1
IC
S2
S2
(05)
S3
S3
TB3A TB3A
Branch Box TB15
S1
S1 1
IC
S2
S2 2
(06)
S3
S3
TB5 TB3B TB3A
(06)
M1 S1 S1
IC
S2 S2
M2
(07)
S3 S3
S
TB3C TB3A
S1
S1
IC
S2
S2
(08)
S3
S3
+L +L 500 m (1.25 mm 2 or more)
2 6 7
2
and L 200 m (1.25 mm or more)
6 7
)
2 shielded wire. The length of this section (L8) should be included in the calculation of the
2
500 m (1.25 mm or more)
7
+L and L 200 m (1.25 mm 2 or more)
2 6 7
200 m (0.3 to 1.25 mm 2 )
MA Remote Controller
OC
(51)
TB7
TB3
C or D
M1 M2 S M1 M2 S
L
2
OC
(53)
TB7
TB3
M1 M2 S M1 M2 S
L
6
Power Supply
Unit
M1 M2 S
System
controller
M1 M2 S
A : Group
B : Group
C : Group
D : Shielded Wire
E : Sub Remote Controller
F : Screw on the electrical component box
( ): Address
<Permissible Lengths>
A
Max length via outdoor units (M-NET cable):
MA
B
L + L + L + L + L
1 2 3 4 5
Max transmission cable length (M-NET cable):
A
MA
B
L + L , L , L + L , L
1 2 3 3 4 5
A
MA
B
RC
RC
A
MA
B
RC
RC
L
1
IC IC IC
m
2
(01) (02) (05)
TB5 TB5 TB5
TB15 TB15
M1 M2 S M1 M2 S
M1 M2 S
1 2 1 2
A B
MA
L L
3 4
IC IC IC
(03) (04) (07)
TB5 TB15 TB5 TB15 TB5
C or D
M1 M2 S M1 M2 S M1 M2 S
1 2
1 2
TB7
A B
MA
M1 M2 S
Fig. 6-3
2
500 m (1.25 mm or more)
200 m (1.25 mm 2 or more)
IC
m
2
(06)
TB5
TB15 TB15
M1 M2 S
1 2 1 2
m
4
A B A B
MA MA
TB15
1 2
13