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Idiomas disponibles
Idiomas disponibles
MAINTENANCE
Maintenance notice
For maintenance or scrap, please contact authorized service centers.
Maintenance by unqualified person may cause dangers.
Feed air conditioner with R290 refrigerant, and maintain the air conditioner
in strictly accordance with manufacturer's requirements. The chapter is
mainly focused on special maintenance requirements for appliance with R290
refrigerant. Ask repairer to read after-sales technical service handbook for
detailed information.
Qualification requirements of maintenance personnel
1.
Special training additional to usual refrigerating equipment repair procedures
is required when equipment with flammable refrigerants is affected. In many
countries, this training is carried out by national training organisations that
are accredited to teach the relevant national competency standards that may
be set in legislation. The achieved competence should be documented by a
certificate.
2.
The maintenance and repair of the air conditioner must be conducted
according to the method recommended by the manufacturer. If other
professionals are needed to help maintain and repair the equipment, it should
be conducted under the supervision of individuals who have the qualification
to repair AC equipped with flammable refrigerant.
Inspection of the site
Safety inspection must be taken before maintaining equipment with R290
refrigerant to make sure the risk of fire is minimized. Check whether the place is
well ventilated, whether anti-static and fire prevention equipment is perfect.
While maintaining the refrigeration system, observe the following precautions
before operating the system.
Operating procedures
1.
General work area:
All maintenance 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 workspace shall be sectioned off. Ensure that the conditions
within the area have been made safe by control of flammable material.
2.
Checking for presence of refrigerant:
The area shall be checked with an appropriate refrigerant detector prior to and
during work, to ensure the technician is aware of potentially toxic or flammable
atmospheres. Ensure that the leak detection equipment being used is suitable
for use with all applicable refrigerants, Le.non-sparking, adequately sealed or
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