Types Of Control Cables - Mitsubishi Electric CITY MULTI PCFY-P40VKM-E Manuel D'installation

6. Electrical work
L N M1 M2 S
TB2
Fig. 6-2
M1 M2 M1 M2 S 1 2
TB3 TB5 TB15 TB5
M1 M2 M1 M2 S
TB3 TB5
CN90
Pair No.
M1 M2 M1 M2 S
0
TB3 TB5
9
Pair No.
0
Fig. 6-3
3
2
1
SW1
ON
OFF
1 2 3 4 5 6 7 8 9 10
SW12 SW11
(10ths DIGIT) (1s DIGIT)
Fig. 6-4
6
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1 2
TB5 TB15
M1 M2 S 1 2
TB15
M1 M2 S
TB5
CN90
Pair No.
1 2 M1 M2 S 1 2
0
TB15 TB5
9
SWA
CN43
CN82
SWC SW14
. / .
(BRANCH No.)
[Fig.6-2]
A Switch 16 A
B Overcurrent protection 16 A
C Indoor unit

6.3. Types of control cables

1. Wiring transmission cables
Types of transmission cable
Cable diameter
Length
2. M-NET Remote control cables
Types of remote control cable Shielding wire MVVS
Cable diameter
Length
3. MA Remote control cables
Types of remote control cable 2-core cable (unshielded)
Cable diameter
Length
6.4. Connecting remote controller, indoor and out-
door 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 control-
ler.
• Connect the remote controller's transmission cable within 10 m using a 0.75 mm²
core cable. If the distance is more than 10 m, use a 1.25 mm² 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.
(Non-polarized 2-wire)
• DC 24 to 30 V between M1 and M2 (M-NET remote controller)
3 Wireless remote controller(When installing wireless signal receiver)
• Connect the wire of wireless signal receiver (9-pole cable) to CN90 of indoor con-
troller board.
• When more than two units are run under group control using wireless remote
controller, connect TB15 each with the same number.
• To chang Pair No. setting, refer to installation manual attached to wireless remote
controller. (In initial setting of indoor unit and wireless remote controller, Pair No.
is 0.)
TB15
A Terminal block for indoor transmission cable
B Terminal block for outdoor transmission cable(M1(A), M2(B),
C Remote controller
D wireless signal receiver
E wireless remote controller
6.5. Setting addresses (Fig. 6-4)
(Be sure to operate with the main power turned OFF.)
• There are 2 types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
1 How to set addresses
Example: If Address is "3", remain SW12 (for over 10) at "0", and match
SW11(for 1 to 9) with "3".
2 How to set branch numbers SW14 (Series R2 only)
Match the indoor unit's refrigerant pipe with the BC controller's end connection
number.
Remain other than series R2 at "0".
• The rotary switches are all set to "0" when shipped from the factory. These
switches can be used to set unit addresses and branch numbers at will.
• The determination of indoor unit addresses varies with the system at site. Set
them referring to the Data Book.
A Address board
D Total operating current be less than 16 A
E Pull box
Shielding wire CVVS or CPEVS
More than 1.25 mm²
Less than 200m
0.5 to 1.25 mm²
Add any portion in excess of 10m to within the
longest allowable transmission cable length 200m
0.3 to 1.25 mm²
Less than 200m
(S))