Mitsubishi Electric City Multy PCFY-NKMU, Руководство по установке

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4. Electrical work
4.3. Types of control cables
1. Wiring transmission cables
Types of transmission cable Shielding wire CVVS or CPEVS
Cable diameter More than 1.25 mm 2 (AWG16)
Length Less than 200 m (656 ft)
Fig. 4-8
4.4. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 4-8)
• 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 con-
necting 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 installing wireless signal receiver)
• Connect the wire of wireless signal receiver (9-pole cable) to CN90 of indoor con-
troller board.
• To change Pair No. setting, refer to installation manual attached to wireless remote
controller. (In the default 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), (S))
C
Remote controller
D
Wireless signal receiver
E
Wireless remote controller
1
2
3
2. M-NET Remote control cables
Types of remote control cable Shielding wire MVVS
Cable diameter More than 0.5 to 1.25 mm
2
(AWG20 to
AWG16)
Length Add any portion in excess of 10 m (33 ft)
to within the longest allowable transmission
cable length 200 m (656 ft).
3. MA Remote control cables
Types of remote control cable 2-core cable (unshielded)
Cable diameter 0.3 to 1.25 mm 2 (AWG22 to AWG16)
Length Less than 200 m (656 ft)
4.5. Setting addresses (Fig. 4-9)
(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.
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.
4.6. Sensing room temperature with the built-in sensor
in a remote controller
If you want to sense room temperature with the built-in sensor in a remote controller,
set SW1-1 on the control board to “ON”. The setting of SW1-7 and SW1-8 as
necessary also makes it possible to adjust the air flow at a time when the heating
thermometer is OFF.
Fig. 4-9
BRANCH
No.
10s
DIGIT
1s
DIGIT
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