Types Of Control Cables; Wiring Transmission Cables; Sensing Room Temperature With The Built-In Sensor In A Remote Controller - Mitsubishi Electric CITY MULTI PLFY-P NFMU-E Serie Manual De Instalación

4. Electrical work

4.3. 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
Cable diameter
Length
1
2
3
Fig. 4-8
BRANCH 10s 1s
No. DIGIT DIGIT
Fig. 4-9
Shielding wire CVVS or CPEVS
2
More than 1.25 mm (AWG16)
Less than 200 m (656 ft)
Shielding wire MVVS
2
More than 0.5 to 1.25 mm (AWG20 to
AWG16)
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
Cable diameter
Length
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
(AWG18) core cable. If the distance is more than 10 m (33 ft), use a 1.25 mm
junction cable.
MA Remote controller
1
• 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)
M-NET Remote controller
2
• 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)
Wireless remote controller (When installing wireless signal receiver)
3
• 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.)
Terminal block for indoor transmission cable
A
Terminal block for outdoor transmission cable (M1(A), M2(B),
B
Remote controller
C
Wireless signal receiver
D
Wireless remote controller
E
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.
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
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.
2-core cable (unshielded)
2
0.3 to 1.25 mm (AWG22 to AWG16)
Less than 200 m (656 ft)
(AWG16)
2
(S))
9
2