Adeo Group OEM2 S026OEM2 Manual De Usuario E Instalacion página 59

shall be reported to the owner of the equipment so all parties are advised.
lnitial safety checks shall include:
• That no live electrical components and wiring are exposed while charging, recovering or
purging the system.
• Keep continuity of earthing.
Check the cable for wear, corrosion, overvoltage, vibration and check if there are sharp
edges and other adverse effects in the surrounding environment. During the inspection,
the impact of aging or the continuous vibration of the compressor and the fan on it
should be taken into consideration.
Note: Check the leakage of the refrigerant in an environment where there is no
potential ignition source. No halogen probe (or any other detector that uses an open
flame) should be used.
Leak detection method:
Make sure the leak detector will not become a potential source of ignition, and
is applicable to the used refrigerant. A gas detector shall be set for the minimum
ignitable fuel concentration (percentage) of the refrigerant. Calibrate and adjust to
proper gas concentration (no more than 25%) with the used refrigerant.
The fluid used in leak detection is applicable to most refrigerants. But do not use
chloride solvents to prevent the reaction between chlorine and refrigerants and the
corrosion of copper pipeline.
lf you suspect a leak, then remove any ignition source.
lf the location of the leak needs to be welded, then all refrigerants need to be
recovered, or, isolate all refrigerants away from the leak site (using cut-off valve).
Before and during the welding, use inert gases to purify the entire system.
1. Make sure there is no ignition source near the outlet of the vacuum pump and the
ventilation is well.
2. Allow the maintenance and other operations of the refrigeration circuit should be
carried out according to the general procedure, but the following best operations that
the flammability is already taken into consideration are the key. You should follow the
following procedures:
Maintenance
Inspection of electric cables
Refrigerant leakage check
Extraction and vacuum pumping
28