Information Servicing
1.Safety Checks
Before starting work on systems containing flammable refrigerants, a safety check must be carried
out to ensure that the risk of fire is minimized. Before servicing the refrigeration system, observe
the following precautions.
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2.Work procedure
Work should be carried out in accordance with specified procedures to minimize the risk of
flammable gas leakage.
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3.Work area
All mintenance staff and others working in the local area shall be instructed on the nature of work
being carried out. work in confined spaces shall be avoided. The area around the work space shall
be sectioned off. Ensure that the conditions within the area have been made safe by control of
flammable material.
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4.Refrigerant leakage check
Before and during work, the area should be checked with an appropriate refrigerant detector to
ensure that technicians understand the concentration of flammable gases. The leak detection
equipment used must match the flammable refrigerant.
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5.Fire extinguisher preparation
If the refrigeration equipment or any related parts are to be operated at high temperature,
dry powder or carbon dioxide fire extinguishers should be equipped
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6.Keep away from ignition sources
Anyone engaged in work related to refrigeration systems containing flammable refrige-
rants shall not use any ignition source. Any ignition source, including smoking, shall be
keptaway from the place of installation and maintenance. Failure to do so may result in
danger to life or property damage.
7.Ventilation
Make sure the area is open or well ventilated before entering the system or carrying out any hot
work. During piping work, a certain degree of ventilation shall be maintained. Ventilation should
safely disperse the released refrigerant, preferably from the outside to the atmosphere.
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8.Checks to the refrigeration equipment
When changing electrical components, they should be suitable for their purpose and meet the
correct specifications. The manufacturer's maintenance and service guidelines should always
be followed. If in doubt, please consult the manufacturer's technical department for assistance.
For devices using flammable refrigerants, the following checks should be performed:
The charge size is in accordance with the room size within which the refrigerant containing
parts are installed;
Ventilation machinery and vents are operating normally without obstruction;
If you use an indirect refrigeration circuit, you should check whether there is refrigerant in
the secondary circuit; the mark on the equipment is still clearly visible.
Indistinct marks and signs should be corrected;
The installation location of refrigeration pipes or components should make it not easy to be
exposed to any environment that may corrode refrigerant-containing substances, unless these
components are made of inherently anti-corrosion materials or are properly anti-corrosive.
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Содержание AAC3000
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