Types Of Control Cables - Mitsubishi Electric city multi P40 Installationshandbuch

6. Electrical work
B A
1
M1 M2 M1 M2 S
TB3 TB5
B
2
M1 M2
TB3 TB5
Fig. 6-2
G
*1
H
I
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
6
A
1 2 M1 M2 S 1 2
TB15 TB5 TB15
C C
A A
M1 M2 S M1 M2 S
TB5
C C
*3
J J J
L2 *2
K K L4
J J
r
K
L
L3
K K
SWA
3
240V
2
CN43
1
CN82
SW11 SW14
SWC
0 0
6.2. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 6-2)
• 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 using a 0.75 mm
core cable. If the distance is more than 10 m, use a 1.25 mm
1 MA Remote controller
• Connect the "1" and "2" on indoor unit TB15 to a MA remote controller. (Non-polar-
ized 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. (Non-
polarized 2-wire)
• DC 24 to 30 V between M1 and M2 (M-NET remote controller)
A Terminal block for indoor transmission cable
B Terminal block for outdoor transmission cable
C Remote controller
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. Switch setting for different ceiling heights
With this unit, the air flow rate and fan speed can be adjusted by setting the SWA
(slide switch). Select a suitable setting from the table below according to the installa-
tion location.
* Make sure the SWA switch is set, otherwise problems such as no wind blowing will
occur.
Ceiling Height 3.5 m
SWA 3 (high ceiling)
SWA: Factory setting: 2 (Standard)

6.5. 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
2
junction cable.
+L or L +L +L ): less than 200 m
1 3 2 3 4
2 diameter cable
2.8 m 2.3 m
2 (standard) 1 (low ceiling)
2
2
2
2
to