Remote Sensor; Remote Control Installation; Group Control - Fujitsu ARXG-KHTAP Series Installation Manual

When function setting is "Forced stop" mode.
Input signal
OFF → ON Forced stop
ON → OFF Normal
* When the forced stop is triggered, indoor unit stops and Operation/Stop operation by a
remote controller is restricted.
When function setting is "Operation/Stop" mode 2.
Input signal
OFF → ON Operation
ON → OFF Stop (R.C. disabled)
4. 2. 2. External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 25 m (82 ft.).
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• Output voltage: Hi DC12V±2V, Lo 0V.
• Permissible current: 50mA
■ Output select
● When interlocking with external device
Connected
device
Relay (locally purchased)
or
● When displaying "Operation/Stop"
Resistor
LED
Connected device
■ Operation behavior
*If function setting "60" is set to "00"
Function setting
00
09
60
10
11
4. 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.
En-12
Command
Command
PCB
PCB
CN47
Status Output voltage
Stop
Operation
Normal
Error
Indoor unit fan stop
Indoor unit fan operation
External heater OFF
External heater ON
Option parts
External output wire

4. 3. Remote sensor

Remote sensor
• Remove the existing connector and replace it with the remote sensor connector (ensure
that the correct connector is used).
• The original connector should be insulated to ensure that it does not come into contact
with other electrical circuitry.
Setting for room temperature correction
When a remote sensor is connected, set the function setting of indoor unit as indicated
below.
• Set Function Number "30" (Room temperature control for cooling) to "00"
• Set Function Number "31" (Room temperature control for heating) to "01"

5. REMOTE CONTROL INSTALLATION

• Be sure to turn off the electrical breaker before making settings.
• When setting DIP switches, do not touch any other parts on the circuit board directly
with your bare hands.

5. 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
CN47
"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)
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
0V
1 2 3
DC 12 V
0V
DC 12 V
0V
1 2 3
R W B
DC 12 V
0 V
Remote controller
DC 12V
(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.
(a) 2-wire type
DIP switch (RC AD SW)...Factory setting "00"
Since the remote controller address settings are automatically confi gured, you do not
need to confi gure them.
If confi guring manually, it is necessary to confi gure both the indoor unit and the remote
controller. For details, please refer to the remote controller installation manual.
(b) 3-wire type
DIP switch (RC AD SW)...Factory setting "00"
When connecting multiple indoor units to 1 standard wired remote controller, set the
address at RC AD SW in sequence from "00".
Setting
Remote controller
address
CAUTION
CAUTION
I.U. I.U. I.U.
B C D
A
Remote
controller
Indoor unit 2 Indoor unit 3
1 2 3 1 2 3
Remote controller
cable
SW100
Setting range
Setting
00 to 15
example 00
I.U.
E
Indoor unit 4
1 2 3
Remote controller
cable
Switch 100
ON
1 2 3 4
RC AD