8 Technical data
Installation and operation manual
12
FCAG35~140AVEB
Split system air conditioners
4P471224-1 – 2017.03
#
Action
Result
4
Press.
The home menu is
displayed.
5
Stop the test run.
#
Action
Result
1
Press at least 4 seconds.
The Service Settings menu
is displayed.
2
Select Test Operation.
Return
Setting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
3
Press.
The unit returns to normal
operation, and the home
menu is displayed.
7.3
Error codes when performing a
test run
If the installation of the outdoor unit has NOT been done correctly,
the following error codes may be displayed on the user interface:
Error code
Possible cause
Nothing displayed
(the currently set
temperature is not
displayed)
▪ The wiring is disconnected or there is a
wiring error (between power supply and
outdoor unit, between outdoor unit and
indoor units, between indoor unit and
user interface).
▪ The fuse on the outdoor or indoor unit
PCB has blown.
E3, E4 or L8
▪ The stop valves are closed.
▪ The air inlet or air outlet is blocked.
E7
There is a missing phase in case of three-
phase power supply units.
Note:
Operation will be impossible. Turn
OFF the power, recheck the wiring, and
switch two of the three electrical wires.
L4
The air inlet or air outlet is blocked.
U0
The stop valves are closed.
U2
▪ There is a voltage imbalance.
▪ There is a missing phase in case of
three-phase power supply units.
Note:
Operation will be impossible. Turn OFF
the power, recheck the wiring, and switch
two of the three electrical wires.
U4 or UF
The inter-unit branch wiring is not correct.
UA
The outdoor and indoor unit are
incompatible.
8
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
extranet (authentication required).
8.1
Piping diagram: Indoor unit
b
a
c
a
Liquid pipe connection
b
Gas pipe connection
c
Heat exchanger
