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If you want an interval of...
(air contamination)
±2500 h (light)
±1250 h (heavy)
Notification ON
Notification OFF
Setting: Number of the connected indoor units as simultaneous
operation system
For simultaneous operation system mode made following field
setting:
If the system mode is...
Pair (1 unit)
Twin (2 units)
Triple (3 units)
Double twin (4 units)
When using in simultaneous operation system mode, refer to
"simultaneous operation system individual setting" section to set
master and slave units separately.
Setting: Simultaneous operation system individual setting
Perform the following procedure when setting the master and slave
unit separately.
1 Change setting:
If you want...
Unified setting
Individual setting
2 Perform field setting for the master unit.
3 Turn off main power supply.
4 Detach user interface from the master unit and connect it to the
slave unit.
5 Turn on the main power supply switch and set individual setting
to 11(21)-1-02.
6 Perform field setting for slave unit.
7 Turn off the main power supply.
8 If there is more than one slave unit, repeat setting for each.
9 Detach user interface from the slave unit and reattach to the
master unit.
INFORMATION
▪ You do NOT need to rewire the user interface from the
master unit if the optional user interface for slave unit is
used. However, remove the wires attached to the user
interface of the master unit.
▪ After the slave unit is set up, re-connect the user
interface to master unit.
▪ The system does not operate properly when two or
more user interfaces are attached in the simultaneous
operation system mode.
Setting: T1/T2 input setting
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.
(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
FHA-A(9)
Split system air conditioner
3P668115-4E – 2022.11
ThenFN
M
SW
—
10 (20)
0
01
02
3
01
02
(1)
Then
M
SW
—
11 (21)
0
01
02
03
This setting must correspond with the needs of the user.
04
(1)
Then
18
M
SW
—
▪ A subset of the latest technical data is available on the regional
11 (21)
1
01
02
▪ The full set of latest technical data is available on the Daikin
18.1
18.1.1
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.
F2
T1
T2
FORCED
a
OFF
b
Input A
a
Forced OFF
b
Input A
Wiring requirements
Wiring specification
Wiring size
Wiring length
External contact specification
If you want to change increments to...
Forced OFF
ON/OFF Operation
Emergency (recommended for alarm
operation)
Technical data
Daikin website (publicly accessible).
Business Portal (authentication required).
Wiring diagram
Unified wiring diagram legend
Symbol Meaning
Symbol Meaning
Circuit breaker
Connection
,
Connector
Earth
Field wiring
Fuse
Indoor unit
INDOOR
Outdoor unit
OUTDOOR
18 Technical data
Only use harmonized wire
providing double insulation and
suitable for applicable voltage
2-core cable
2
Minimum 0.75 mm
Maximum 100 m
Contact that can make and break
the min. load of DC15 V · 1 mA
(1)
Then
M
SW
—
12 (22)
1
01
02
03
Protective earth
Protective earth (screw)
A
Rectifier
,
Relay connector
Short-circuit connector
Terminal
Terminal strip
Wire clamp
Installation and operation manual
23
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