10
6. Electrical work
6.3. Types of control cables
1. Wiring transmission cables
Types of transmission cable Shielding wire
Use UL wire rated 300 V
Cable diameter
More than 1.25 mm² (AWG16)
Length
Less than 200 m, 219 yard
2. M-NET Remote control cables
Types of remote control cable Shielding wire
Use UL wire rated 300 V
Cable diameter
0.5 (AWG20) to 1.25 mm² (AWG16)
Length
Add any portion in excess of 10 m, 33 ft to within
the longest allowable transmission cable length
200 m, 219 yard.
3. MA Remote control cables
Types of remote control cable 2-core cable (unshielded)
Use UL wire rated 300 V
Cable diameter
0.3 (AWG22) to 1.25 mm² (AWG16)
Length
Less than 200 m, 219 yard
Fig. 6-3
A
A
C
TB5
TB15 TB5
TB15
S
M1M2
S
M1M2
B
TB3
M1M2
2
1
C
2
1
1
A
A
C
TB5
TB5
S
M1M2
S
M1M2
C
B
TB3
M1M2
2
3
Pair No.
Pair No.
6.4. Connecting remote controller, indoor and
outdoor transmission cables (Fig. 6-3)
• Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire) The “S”
on indoor unit TB5 is a shielding wire connection. For specifications about the
connecting cables, refer to the outdoor unit installation manual.
• Install a remote controller following the manual supplied with the remote controller.
• Connect the remote controller’s transmission cable within 10 m, 33 ft, using a
0.75 mm
2
(AWG18) core cable. If the distance is more than 10 m, 33 ft, use a
1.25 mm
2
(AWG16) junction cable.
1
MA Remote controller
• Connect the “1” and “2” on indoor unit TB15 to a MA remote controller. (Non-
polarized 2-wire)
• DC 9 to 13 V between 1 and 2 (MA remote controller)
2
M-NET Remote controller
• Connect the “M1” and “M2” on indoor unit TB5 to a M-NET remote controller.
(Nonpolarized 2-wire)
• DC 24 to 30 V between M1 and M2 (M-NET remote controller)
3
Wireless remote controller
• When more than two units are run under group control using wireless remote
controller, connect TB15 each with the same number.
• To change Pair No. setting, refer to installation manual attached to wireless re-
mote controller. (In the default setting of indoor unit and wireless remote control-
ler, Pair No. is 0.)
A
Terminal block for indoor transmission cable
B
Terminal block for outdoor transmission cable (M1(A), M2(B), (S))
C
Remote controller
D
Wireless signal receiver
E
Wireless remote controller
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