7
|
Commissioning
Installer reference guide
44
FNA25~60A2VEB(9)
Split system air conditioners
4P550955-3C – 2020.12
#
Action
Result
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.
NOTICE
When the indoor unit fan rotates and the operation light flashes after trial operation,
there is a risk of refrigerant leakage. In that case, immediately ventilate the room and
contact your dealer.
(1)
7.4 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.
A0
▪
Refrigerant leak detected.
(1)
CH
▪
Abnormality of refrigerant leakage sensor.
(1)
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.
(1)
Only for units using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.
Содержание FNA25A2VEB
Страница 51: ......
Страница 52: ...4P550955 3C 2020 12 Copyright 2017 Daikin Verantwortung für Energie und Umwelt ...