10
|
Maintenance and service
Installer and user reference guide
37
FXHA32~100AVEB
VRV system air conditioner
4P673749-1 – 2022.01
10.5.1 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.
