Remote Control Installation; Group Control - Fujitsu AUXG-KRLB Series Installation Manual

5.2.3. Connection methods
Wire modifi cation
• Remove insulation from wire attached to wire kit connector.
• Remove insulation from locally purchased cable. Use crimp type insulated butt
connector to join fi eld cable and wire kit wire.
• Connect the wire with connecting wire with solder.
IMPORTANT: Be sure to insulate the connection between the wires.
Locally purchased
Solder and insulate the connected parts.
• Connecting wires to the terminals.
Use ring terminals with insulating sleeves to connect to the terminal block.
• Connection terminals and wiring arrangement
In following fi gure, all the possible connections are done for description.
In actual installation, connections will differ according to each installation requirements.
PCB
Clamp
External
input
wire

6. REMOTE CONTROL INSTALLATION

• Be sure to turn off the electrical breaker before making settings.
• Do not set the DIP switch or rotary switch of this unit except as specifi ed in this
manual or the operating manual supplied with the air conditioner.
• Setting the switches other than specifi ed will cause an accident or trouble.
• Do not touch the circuit board and circuit board parts directly with your hands. Oth-
erwise, injury or electric shock could result.
• Use an insulated screwdriver to set the dip switches.
En-12
Option parts
External output wire
External
input/output PCB
communication wire
External
output wire
Clamp
CAUTION

6. 1. Group control

Group control is only possible between units with remote controllers of the same type.
To confi rm the type of remote controller, see the back of the remote controller or "2. 5.
Optional parts".
A number of indoor units can be operated at the same time using a single remote controller.
(1) Connect up to 16 indoor units in a system. (indoor unit to remote controller)
I.U. I.U.
B
A
Remote
controller
A, B, C, D, E : Remote controller cable. (Refer to "2. 4. Electrical requirement")
A+B+C+D+E ≤ 500 m.
Example of wiring method (2-wire type)
Indoor unit 1 Indoor unit 2
1 2 3 1 2 3
1 2 3
Remote
Y Y
1 2
controller cable
Remote controller
(2) Set the R.C. address (DIP switch setting)
Set the R.C. address of each indoor unit using the DIP switch on the indoor unit
circuit board.
CAUTION
I.U. I.U.
C D E
Indoor unit 3 Indoor unit 4
1 2 3 1 2 3
Bus wire
ON
1 2 3 4
RC AD