External Input And Output; Connection Methods; Remote Control Installation; Group Control - Fujitsu 9384203007-04 Manuel D'installation

4. 2. External input and output

4. 2. 1. External input
• Indoor unit functions such as Operation/Stop or Forced stop can be
done by using indoor unit terminals.
• "Operation/Stop" mode or "Forced stop" mode can be selected with
function setting of indoor unit.
• A twisted pair cable (22 AWG) should be used. Maximum length of
cable is 492 ft. (150 m).
• Use an external input and output cable with appropriate external
dimension, depending on the number of cables to be installed.
• The wire connection should be separate from the power cable line.
● Dry contact terminal
When a power supply is unnecessary at the input device you want to connect, use the Dry
contact terminal.
*1
Connected device
*1: The switch can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
■ Operation behavior
● Input signal type
ON
Edge
OFF
When function setting is "Operation/Stop" mode 1.
Input signal
OFF → ON Operation
ON → OFF Stop
Set "00" to the function setting 46.
When function setting is "Forced stop" mode.
Input signal
OFF → ON Forced stop
ON → OFF Normal
Set "02" to the function setting 46.
* 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)
Set "03" to the function setting 46.
4. 2. 2. External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft. (25 m).
• 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
9384203007-04.indb 13 9384203007-04.indb 13
Terminal
Connected device
Terminal
(External in)
Command
Command
Command
PCB
CN47
PCB
CN47
■ Operation behavior
Functions of the external output terminal can be switched.
Function setting
Stop
00
Operation
OFF
01 - 04
Cooling thermostat ON
OFF
05
Heating operation ON
Stop
06
Operation
60
OFF
07 - 08
Cooling thermostat ON
Normal
09
Error
Indoor unit fan stop
10
Indoor unit fan operation
External heater OFF
11
External heater ON
Refer to the Design & technical manual.

4. 2. 3. Connection methods

■ Wire modification
• 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 diff er according to each installation requirements.

5. REMOTE CONTROL INSTALLATION

CAUTION
• 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.
• Use an insulated screwdriver to set the DIP switches.

5. 1. Group control

NOTE:
You cannot use group control and wireless LAN control together.
CAUTION
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. 6. Optional parts".
A number of indoor units can be operated at the same time using a single remote controller.
Connect up to 16 indoor units in a system. (indoor unit to remote controller)
I.U. I.U.
B C
A
Remote
controller
(♦... Factory setting)
Status Output voltage
♦
0 V
DC 12 V
0 V
DC 12 V
0 V
DC 12 V
0 V
DC 12 V
0 V
DC 12 V
0 V
DC 12 V
0 V
DC 12 V
0 V
DC 12 V
Option parts
External output wire
I.U. I.U.
D E
En-13
2020/12/04 12:44:48 2020/12/04 12:44:48