17
English
2. Start the test run.
Table 9
3. Check operation for 3 minutes.
4. Check operation of the airflow direction.
Table 10
5. Stop the test run.
Table 11
12-1
ERROR CODES WHEN PERFORMING A TEST RUN
If the installation of the outdoor unit has NOT been done cor-
rectly, the following error codes may be displayed on the user
interface:
CAUTION
After test operation is completed, check the items mentioned in
the clause 2 “Items to be checked after the installation work is
completed” on page 3.
If the interior finish work is not completed when the test opera-
tion is finished, for protection of the air conditioner, ask the cus-
tomer not operate the air conditioner until the interior finish work
is completed.
If the air conditioner is operated, the inside of the indoor units
may be polluted by substances generated from the coating and
adhesives used for the interior finish work and cause water
splash and leakage.
To the operator carrying out test operation
After test operation is completed, before delivering the air con-
ditioner to the customer, confirm that the control box cover is
closed.
In addition, explain the power supply status (power supply ON/
OFF) to the customer.
#
Action
Result
1
Go to the home menu
2
Press at least 4 seconds.
The Service Setting menu is dis-
played.
3
Select the Test Operation.
4
Press.
Test Operation is displayed on
the home menu.
5
Press within 10 seconds.
Test run starts.
#
Action
Result
1
Press.
2
Select 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.
Cool
Set to
28
°C
Return
Setting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Cool
Return
Setting
Test Operation
Return Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Position 0
Low
Return Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Low
Position 0
#
Action
Result
1
Press at least 4 seconds.
The Service Settings menu is
displayed.
2
Select Test Operation.
3
Press.
The unit returns to normal oper-
ation, and the home menu is dis-
played.
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 remote controller)
• 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 sop 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.
Return
Setting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
4PEN469440-1H.book Page 17 Friday, March 22, 2019 2:36 PM
