Pressure test and leak detect
Safety
Notices for using refrigerant sensor
operation of flammable refrigerant
Field-made refrigerant joints indoors shall be
tightness tested. The test method shall have a
sensitivity of 5 grams per year of refrigerant or
better under a pressure of at least 0,25 times
the maximum allowable pressure. No leak
shall be detected.
After completion of field piping for split
systems, the field pipework shall be pressure
tested with an inert gas and then vacuum
tested prior to refrigerant charging, according
to the following requirements.
The refrigerant sensor can monitor whether
R32 refrigerant leaks in real time. When the
leakage of R32 refrigerant is detected, the
sensor will trigger the alarm and emit a
buzzer, and the indoor unit will display "EA"
code. Meanwhile, the outdoor unit will stop
running.
In case of refrigerant leakage, please open
the window immediately for ventilation to
reduce the concentration of refrigerant in the
room. Meanwhile, check the
room to ensure
The minimum test pressure for the low side of
the system shall be the low side design pres-
sure and the minimum test pressure for the
high side of the system shall be the high side
design pressure, unless the high side of the
system, cannot be isolated from the low side of
the system in which case the entire system
shall be pressure tested to the low side desi
gn
pressure.
that there is no fire source. After completing
the above operations, please leave the room
and go to the safe place, and then contact the
after-sales service team for maintenance.
When the refrigerant sensor reaches its
service life or is damaged, the indoor unit will
display "FE" code. Please contact the
after-sales service team to replace the refrig-
erant sensor.
Avoid oil and water splashing into the refriger-
ant sensor, otherwise it may cause damage to
the refrigerant sensor.
Avoid using it in the environment with electro-
magnetic interference, chemical substances
(such as chemical plants, etc.), flammable
gas, combustible and explosive gas and
smog, etc.
Avoid using items containing ethanol (such as
perfume, etc.) and smog-producing items
(such as cigarettes, etc.) near the refrigerant
sensor, otherwise it will lead to abnormal con-
ditions such as false alarms of the refrigerant
sensor. If such phenomenon occurs, please
contact the after-sales service team for main-
tenance.
Only applicable to refrigerant sensor models.
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