Error Codes When Performing A Test Run; Hand-Over To The User - Daikin Sky Air Advance Series Installer's Reference Manual

1 Perform introductory steps.
#
1 Open the liquid stop valve and gas stop valve by
removing the cap and turning counterclockwise with a
hex wrench until it stops.
2 Close the service cover to prevent electric shocks.
3 Turn ON power for at least 6 hours before starting
operation to protect the compressor.
4 On the user interface, set the unit to cooling operation
mode.
2 Start the test run
# Action
1 Go to the home menu.
2 Press at least 4 seconds.
3 Select Test Operation.
4 Press.
5 Press within 10 seconds.
3 Check operation for 3 minutes.
4 Check operation of the airflow direction (only applicable for
indoor units with swing flaps).
# Action
1 Press.
2 Select Position 0.
3 Change the position.
4 Press.
RZA200+250D7Y1B
Sky Air Advance-series
4P573383-1 – 2019.04
Action
Result
Cool
Set to
28
°C
The Service Settings menu
is displayed.
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Return Setting
Test Operation is
displayed on the home
menu.
Cool
Test Operation Return Setting
Test run starts.
Result
Air Volume/direction
Air Volume Direction
Low Position 0
Return Return Setting Setting
Air Volume/direction
Air Volume Direction
Low Position 0
Return Return Setting Setting
If the airflow flap of the
indoor unit moves,
operation is OK.
If not, operation is not OK.
The home menu is
displayed.

8 Hand-over to the user

5 Stop the test run.
# Action
1 Press at least 4 seconds.
2 Select Test Operation.
3 Press.
7.5 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
Nothing displayed ▪ The wiring is disconnected or there is a
wiring error (between power supply and
(the currently set
outdoor unit, between outdoor unit and
temperature is not
indoor units, between indoor unit and
displayed)
user interface).
▪ The fuse on the outdoor unit PCB has
blown out.
E3, E4 or L8 ▪ The stop valves are closed.
▪ The air inlet or air outlet is blocked.
U1 or 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 Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation at the URL mentioned earlier in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do for the maintenance of the unit.
Result
The Service Settings menu
is displayed.
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Return Setting
The unit returns to normal
operation, and the home
menu is displayed.
Possible cause
Installer reference guide
27