Optional Parts Wiring; External Input And External Output (Optional Parts) - Fujitsu AIRSTAGE ARUX12TLAV2 Installation Manual

5.6. Optional parts wiring

5.6.1 Connector and DIP switch position
Do not operate any switches other than prescribed, as it can cause the unit to operate
improperly or malfunction.
Use an insulated screwdriver to set the DIP switches.
Controller PCB
DIP switch
(SET 2)
SW4
SW3
CN65
SW2
SW1
ON OFF
CN820
Power indicator lamp (green)
Power PCB
NOTE:
If the external heater is not in-line, set the "DIP switch SET 2 SW3" to "off" and set the
function setting "79" to "00: Disable". Refer to "6.3. Function setting".
Name
Power indicator Indicates the state of the power supply. Refer to "5.6.2 Power indicator
lamp (green) lamp status" following.
CNA01 Apply voltage terminal
CNA03
CNA02 Dry contact terminal
CNA04
DIP switch SW2 Input signal type switching
SET 2
SW3 Indoor unit fan setting for
external heater
CNB01 Output terminal (DC 12 V)
CN8 For Remote sensor unit (*1)
CN48 For IR receiver unit (*1)
CN65 For one of the following.
• Modbus converter (*1)
• Wireless LAN adapter (*1)
CN820 For External power supply unit (*1)
CN112 Heater terminal (AC 24 V)
*1: For details, refer to each installation manual.
*2: Only for 2 stage models.
5.6.2 Power indicator lamp status
Power indicator lamp (Green)
Lit when the power is turned on.
Lit
There is a fault with the communication board or the
Fast flashing (every 0.1
main board.
second)
The indoor unit is turned off and power is supplied
Blinking (repeat 3 seconds ON
from the External power supply unit (optional) to the
and 1 second OFF)
indoor unit PCB.
CAUTION
CN48
CNB01
CNA01
CNA03
CNA02
CN8 CNA04
CN112
Application
For external input.
Refer to "5.7. External input and external
output (Optional parts)".
In the following cases, set this switch
to "off" and set the function setting "79"
to "00: Disable". Refer to "6.3. Function
setting".
• When not using any external heaters.
• When the external heater is not in-line.
For one of the following.
• External output
• External heater (*2)
Refer to "5.7. External input and external
output (Optional parts)" and "5.8. Heater
connection".
For external heater.
Refer to "5.8. Heater connection".
Status contents
5.6.3 Connection methods
Wire modification for External
input/output wire
(1) Remove insulation from wire at-
tached to wire kit connector.
(2) Remove insulation from field
supplied cable. Use crimp type
insulated butt connector to join field
cable and wire kit wire.
(3) Connect the wire with connecting
wire with solder.
Wiring arrangement
In following figure, all the possible connectors are connected for description.
In actual installation, you cannot connect all the connectors at once.
Controller PCB
*1: If you cut the accessory cable tie, use a locally purchased
To protect the cable insulation after opening a knockout hole, remove any burrs from the
edge of the hole.

5.7. External input and external output (Optional parts)

Do not operate any switches other than prescribed, as it can cause the unit to operate
improperly or malfunction.
Use an insulated screwdriver to set the DIP switches.
5.7.1 External input
• Indoor unit can be operation/stop, emergency stop or forced stop by using indoor unit PCB
CNA01 or CNA02.
• "Operation/Stop" mode, "Emergency stop" mode or "Forced stop" mode can be selected
with function setting of indoor unit.
• Indoor unit can be forced thermostat off by using indoor unit PCB CNA03 or CNA04.
• A twisted pair cable (22 AWG) should be used. Maximum length of cable is 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.
IMPORTANT:
Be sure to insulate the connection between the
wires.
Locally Wire kit connector
purchased (optional parts)
Solder and insulate the connected parts.
Cable tie (small; accessories) (*1)
CAUTION
CAUTION
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