18 Technical data
Installation and operation manual
25
FXUA50~100AVEB
VRV system air conditioner
3P668115-2C – 2022.01
Setting: T1/T2 input setting
WARNING
In case of R32 refrigerant, terminal connections T1/T2 are
for fire alarm input ONLY. Fire alarm has a higher priority
than R32 safety and shuts the entire system down.
T1
T2
X1M
a
a
Fire alarm input signal (potential free contact)
Remote control is available by transmission the external input to the
terminals T1 and T2 on the terminal block for the user interface and
the transmission wiring.
F2
T1
OFF
FORCED
T2
Input A
b
a
a
Forced OFF
b
Input A
Wiring requirements
Wiring specification
Sheathed vinyl cord or 2-core
cable
Wiring size
0.75~1.25 mm
2
Wiring length
Maximum 100 m
External contact specification
Contact that can make and break
the min. load of DC15 V · 1 mA
This setting must correspond with the needs of the user.
If you want to change increments to…
Then
(1)
M
SW
—
Forced OFF
12 (22)
1
01
ON/OFF Operation
02
Emergency (recommended for alarm
operation)
03
Forced OFF - multi tenant
04
Interlocking setting A
05
Interlocking setting B
06
18
Technical data
▪ A
subset
of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The
full set
of latest technical data is available on the Daikin
Business Portal (authentication required).
18.1
Wiring diagram
18.1.1
Unified wiring diagram legend
For applied parts and numbering, refer to the wiring diagram on the
unit. Part numbering is by Arabic numbers in ascending order for
each part and is represented in the overview below by "*" in the part
code.
Symbol
Meaning
Symbol Meaning
Circuit breaker
Protective earth
Connection
Protective earth (screw)
,
Connector
A
Rectifier
Earth
Relay connector
Field wiring
Short-circuit connector
Fuse
Terminal
INDOOR
Indoor unit
Terminal strip
OUTDOOR
Outdoor unit
Wire clamp
Residual current
device
Symbol
Colour
Symbol
Colour
BLK
Black
ORG
Orange
BLU
Blue
PNK
Pink
BRN
Brown
PRP, PPL
Purple
GRN
Green
RED
Red
GRY
Grey
WHT
White
SKY BLU Sky blue
YLW
Yellow
Symbol
Meaning
A*P
Printed circuit board
BS*
Pushbutton ON/OFF, operation
switch
BZ, H*O
Buzzer
C*
Capacitor
AC*, CN*, E*, HA*, HE*, HL*,
HN*, HR*, MR*_A, MR*_B, S*, U,
V, W, X*A, K*R_*, NE
Connection, connector
D*, V*D
Diode
DB*
Diode bridge
DS*
DIP switch
E*H
Heater
FU*, F*U, (for characteristics,
refer to PCB inside your unit)
Fuse
FG*
Connector (frame ground)
H*
Harness
H*P, LED*, V*L
Pilot lamp, light emitting diode
HAP
Light emitting diode (service
monitor green)
HIGH VOLTAGE
High voltage
IES
Intelligent eye sensor
IPM*
Intelligent power module
K*R, KCR, KFR, KHuR, K*M
Magnetic relay
L
Live
L*
Coil
L*R
Reactor
M*
Stepper motor
(1)
Field settings are defined as follows:
•
M
: Mode number –
First number
: for group of units –
Number between brackets
: for individual unit
•
SW
: Setting number
• —: Value number
•
: Default
