8 Commissioning
Installer and user reference guide
18
FCAHG71~140FVEB
Split system air conditioners
4P429475-1 – 2015.12
The
stop valves
(gas and liquid) on the outdoor unit are
fully open.
8.4
To perform a test run
This task is only applicable when using the BRC1E52 or BRC1E53
user interface. When using any other user interface, see the
installation manual or service manual of the user interface.
NOTICE
Do not interrupt the test run.
INFORMATION
Backlight.
To perform an ON/OFF action on the user
interface, the backlight does not need to be lit. For any
other action, it needs to be lit first. The backlight is lit for
±30 seconds when you press a button.
1
Perform introductory steps.
#
Action
1
Open the liquid stop valve (A) and gas stop valve (B)
by removing the stem cap and turning
counterclockwise with a hex wrench until it stops.
A
B
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
Result
1
Go to the home menu.
Cool
Set to
28
°C
2
Press at least 4 seconds.
The Service Settings menu
is displayed.
3
Select Test Operation.
Return
Setting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
4
Press.
Test Operation is
displayed on the home
menu.
Cool
Return
Setting
Test Operation
5
Press within 10 seconds.
Test run starts.
3
Check operation for 3 minutes.
4
Check operation of the airflow direction.
#
Action
Result
1
Press.
Return
Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Position 0
Low
2
Select Position 0.
Return
Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Low
Position 0
3
Change the position.
If the airflow flap of the
indoor unit moves,
operation is OK.
If not, operation is not OK.
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.
8.5
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
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 unit PCB has
blown out.
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.
