6. Electrical work
G
*1
H
I
*3
L1
Fig. 6-3
A
SW5
220V
SW1
ON
OFF
1 2 3 4 5 6 7 8 9 10
SW12
0
Fig. 6-4
J
J
J
L2
*2
K
K
L4
J
J
r
K
L
L3
K
K
240V
CN43
CN82
SW11
SW14
SWC
0
0
Constraints on transmission cable (Fig. 6-3)
Longest wiring length (L
+L
+L
or L
1
2
4
Length between indoor unit and remote controller (R): within 10 m
G Outdoor unit
H Earth
I BC controller
J Indoor unit
K M-NET Remote controller
L Non-polarized 2-wire
Note:
*1 Put the transmission cable earth via the outdoor unit's earth terminal
the ground.
*2 If the remote controller cable exceeds 10 m, use a 1.25 mm
over the exceeded portion, and add that exceeded portion to within 200 m.
*3 The BC controller is required only for simultaneous cooling and heating
series R2.
6.3. Setting addresses (Fig. 6-4)
(Be sure to operate with the main power turned OFF.)
• There are two types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
Note:
Please set the switch SW5 according to the power supply voltage.
• Set SW5 to 240 V side when the power supply is 230 and 240 volts.
• When the power supply is 220 volts, set SW5 to 220 V side.
A Address board
6.4. Types of control cables
1. Wiring transmission cables: Shielding wire CVVS or CPEVS
• Cable diameter: More than 1.25 mm
2. M-NET Remote control cables
Kind of remote control cable Shielding wire MVVS
Cable diameter
More than 0.5 to 1.25 mm
When 10 m is exceeded, use cable with the same
Remarks
specifications as transmission line wiring.
3. MA Remote control cables
Kind of remote control cable 2-core cable (unshielded)
Cable diameter
0.3 to 1.25 mm
+L
or L
+L
+L
): less than 200 m
1
3
2
3
4
2
diameter cable
2
2
2
to
7