JAVAC VELO-X Schnellstartanleitung Seite 2

EN
SAFETY FIRST
The unit must only be operated by an engineer who has been properly trained in the care
and use of such equipment. Use of this equipment by unqualified personnel is potentially
dangerous and should not be attempted.
1.0 GENERAL SAFETY INSTRUCTIONS
WARNING THAT FAILURE TO EXACTLY FOLLOW ALL THE STEPS IN THIS
PROCEDURE MAY LEAD TO SERIOUS INJURY OR DEATH
ADDITIONAL SAFETY INSTRUCTIONS FOR REFRIGERATION SYSTEMS
CONTAINING CLASS A2, A2L & A3 REFRIGERANTS:
The following are additional safety recommendations when servicing refrigeration
equipment that contain Class A2L, A2 or A3 refrigerants. These instructions do not replace
existing occupational hazard procedures or other regulations that may be required.
Technicians working on Class A2L, A2 and A3 systems should have detailed knowledge of and
skills in handling flammable refrigerants, personal protective equipment, refrigerant leakage
prevention, handling of cylinders, charging, leak detection and proper disposal. Additional
knowledge of legislation, regulations and standards relating to flammable refrigerants may also be
required. Special Certification or licensing may be required on Class A2L, A2, and A3 and
refrigerant handling.
The area of service should be marked as Temporary Flammable Zone. This will be 9ft (3m)
perimeter around the refrigeration equipment being serviced and should have NO SMOKING and
other hazardous signs posted.
• A flammable gas detector should be used to monitor air in the Temporary Flammable Zone
• A dry powder or CO
• Vacuum pump exhaust may contain harmful vapours. Provide adequate ventiliation
• A suitable ventilation fan should be used to maintain in the work space at a minimum
of 5 air changeovers per hour
• Ensure the refrigeration equipment's power has been discontinued
• All potential ignition sources within temporary flammable zone must be disabled
• When connecting service equipment (such as vacuum pumps, scales, recovery units) to
a power source, the connection must be made outside the Temporary Hazardous Zone
• Check the system to ensure the refrigerant has been properly removed from the refrigeration
system being serviced
• Before evacuating a Class A2 or A3 system, the system should be purged with 100% Nitrogen.
DO NOT USE AIR
fire extinguisher must be available at service location
2
DANGER-EXPLOSION RISK: Do not mix
Class A2L, A2 or A3 refrigerants with air.
All precautions must be taken to eliminate
mixing of air with flammable refrigerants
including monitoring Recovery Cylinder for
air content.
2