Mitsubishi Electric City Multi PLFY-WL-VEM-E Series Installation Manual page 14

5. Electrical work
5.4. 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
1 B
M1 M2
TB3 TB5
B
2
M1 M2
TB3
3
B
A SW14 SW12 SW11
SW21
ON
OFF
1 6
BRANCH 10s
No. DIGIT
en
12
Shielding wire CVVS or CPEVS
More than 1.25 mm²
Less than 200 m
0.5 to 1.25 mm²
Add any portion in excess of 10 m to within the
longest allowable transmission cable length 200 m
A A
M1 M2 S 1 2 M1 M2 S 1
TB15 TB5
C
A A
M1 M2 S M1 M2 S
TB5 TB5
C C
A
Pair No.
D
Pair No.
E
Fig. 5-9
SW22 SW1 SW2 SW3
ON
OFF
1 4 1 0 1 6 1
1s
DIGIT
Fig. 5-10
3. MA Remote control cables
Types of remote control cable 2-core cable (unshielded)
Cable diameter
Length
5.5. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 5-9)
2
TB15
• 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-polarized
2-wire)
C
• 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 change 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.)
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
5.6. Setting addresses (Fig. 5-10)
(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.
How to set addresses
1
Example: If Address is "3", remain SW12 (for over 10) at "0", and match
SW11 (for 1 to 9) with "3".
How to set branch numbers SW14 (Series R2 only)
2
Match the indoor unit's refrigerant pipe with the BC controller's end connection
0
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.
• Switches in the picture show "0".
Controller board
A
0.3 to 1.25 mm²
Less than 200 m
junction cable.
2
(S))
2