Daikin RXTA30B2V1B Service Manual page 10

1 | Safety precautions
Service manual
10
WARNING
Make sure the total refrigerant charge is in accordance with the room size in which
the unit is installed: please consult the detailed instructions on charging and allowed
room sizes in the installation manual.
WARNING
▪
NEVER mix different refrigerants or allow air to enter the refrigerant system.
▪
NEVER charge recovered refrigerant from another unit. Use recovered refrigerant
only on the same unit where it was recovered from, or have it recycled at a
certified facility.
WARNING
When reconnecting a connector to the PCB, make sure to connect it on the correct
location and do NOT apply force, as this may damage the connector or connector
pins of the PCB.
WARNING
ALWAYS recover the refrigerant. Do NOT release them directly into the environment.
Use a vacuum pump to evacuate the installation.
WARNING
Removal of refrigerant MUST be according to the following:
When breaking into the refrigerant circuit to make repairs, be sure to remove the
refrigerant from the system first. The refrigerant charge MUST be recovered into the
correct recovery cylinders.
WARNING
Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks,
ventilate the area immediately. Possible risks:
▪
Excessive refrigerant concentrations in a closed room can lead to oxygen
deficiency.
▪
Toxic gas might be produced if refrigerant gas comes into contact with fire.
WARNING
▪
Under no circumstances, potential sources of ignition SHALL be used in the
searching for or detection of refrigerant leaks. A halide torch (or any other
detector using a naked flame) MUST NOT be used.
▪
Ensure that the detector is NOT a potential source of ignition and is suitable for
the detection of R32.
▪
If a leak is suspected, all naked flames MUST be removed or extinguished.
▪
Leak detection fluids are also suitable for use with most refrigerants but the use
of detergents containing chlorine MUST be avoided as the chlorine may react
with the refrigerant and corrode the copper pipe-work.
▪
If a leakage of refrigerant is found which requires brazing, all of the refrigerant
MUST be recovered from the system, or isolated (by means of shut‑off valves) in
a part of the system remote from the leak.
▪
Only use the electronic leak tester for R32. The old flame leak tester CANNOT be
used on a system with HFC refrigerant because there is no chlorine component in
the refrigerant. In case of R32 (HFC) refrigerant, any flame in contact with
(leaking) refrigerant is extremely dangerous.
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+FTXTM30+40R2V1B+FTXTP25+35M5V1B+ATXTP25+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02