Daikin FXMA100A5VEB, Installation And Operation Manual

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8 Troubleshooting
Installation and operation manual
13
FXMA-A
VRV system air conditioner
3P680922-1A – 2022.01
7.3.1 About the refrigerant leakage sensor
WARNING
The R32 refrigerant leakage sensor must be replaced after
every detection or at the end of its lifetime. ONLY
authorised persons may replace the sensor.
NOTICE
Functionality of the safety measures are periodically
automatically checked. In case of malfunction, an error
code will be displayed on the user interface.
NOTICE
The R32 refrigerant leakage sensor is a semiconductor
detector which may incorrectly detect substances other
than R32 refrigerant. Avoid using chemical substances
(e.g. organic solvents, hair spray, paint) in high
concentrations, in the close proximity of the indoor unit
because this may cause misdetection of the R32
refrigerant leakage sensor.
INFORMATION
The sensor has a lifetime of 10 years. The user interface
displays error "
CH-05 " 6 months before the end of the
sensor lifetime and error " CH-02 " after the end of the
sensor lifetime. For more information, refer to the reference
guide of the user interface and contact your dealer.
In case of detection when the unit is in standby
When the detection occurs when the unit is in standby, a "false
detection check" will occur.
False detection check
1 The unit starts fan operation on the lowest setting.
2 The user interface displays error " A0-13 ", emits an alarm sound
and the status indicator blinks.
3 The sensor checks if a refrigerant leakage or misdetection
occurred.
▪ No refrigerant leakage detected. Result: The system resumes
normal operation after approximately 2 minutes.
▪ Refrigerant leakage detected. Result:
1 The user interface displays error " A0-11 ", emits an alarm sound
and the status indicator blinks.
2 Contact your dealer immediately. For more information, see the
installation manual of the outdoor unit.
In case of detection when the unit is turned on
1 The user interface displays error " A0-11 ", emits an alarm sound
and the status indicator blinks.
2 Contact your dealer immediately. For more information, see the
installation manual of the outdoor unit.
INFORMATION
To stop alarm of the user interface see the reference guide
of the user interface.
INFORMATION
The minimum airflow during normal operation or during the
refrigerant leakage detection is always >240 m
3
/h.
8 Troubleshooting
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
WARNING
Stop operation and shut OFF the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electrical shock or fire. Contact your
dealer.
The system MUST be repaired by a qualified service person.
Malfunction Measure
If a safety device such as a fuse, a
circuit breaker or a residual current
device frequently actuates or the ON/
OFF switch does NOT function properly. Turn OFF all main power
supply switches to the
unit.
If water leaks from the unit. Stop operation.
The operation switch does NOT function
properly. Turn OFF the power
supply.
If the user interface displays .
Notify your installer and
report the error code. To
display an error code see
the reference guide of the
user interface.
If the system does NOT operate properly except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system in accordance with the following
procedures.
INFORMATION
Refer to the reference guide located on http://
www.daikineurope.com/support-and-manuals/product-
information/
for more troubleshooting tips.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
9 Relocation
Contact your dealer for removing and reinstalling the total unit.
Moving units requires technical expertise.
10 Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.