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3.0 BEFORE STARTING
Add vacuum pump oil and always check the oil level before use. Low oil level or poor quality oil will
result in premature wear and poor performance.
Install on a flat surface with adequate ventilation; allow 5cm on all sides of the pump.
Connect via a suitable hose to a manifold or suitable circuit.
Connect to a suitable safe power source using earth leakage devices when using extension cords.
CAUTION:
• Do not use with combustible, explosive, poisonous or reactive/corrosive gases.
• Do not allow dust particles to enter the pump.
• Do not allow the pump to run to open air / atmosphere for more than 3 minutes.
• Do not allow the inlet temperature of gases to exceed 80℃. Do not use in environments over 50°C.
• Not suitable for use as a compressor, transfer pump or recovery pump.
• Do not operate without oil.
• Pump surface may be hot.
• Do not block air outlet when pump is in use.
4.0 GENERAL SAFETY INSTRUCTIONS
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 by local,
state or federal agencies. Please read carefully before any servicing.
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. All equipment used during the evacuation process must be in good order, including
hoses, connectors, the vacuum gauge and the A2L Vacuum Pump.
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Special Certification or licensing may be required on Class A2L, A2, and A3 and refrigerant
handling. Check your local occupational safety codes.
FAILURE TO THOROUGHLY FOLLOW THESE SAFETY INSTRUCTIONS CAN LEAD TO
SERIOUS BODILY INJURY, INCLUDING DEATH.
The area of service should be marked as Temporary Flammable Zone. This will be 9 foot (3 meter)
perimeter around the refrigeration equipment being serviced and should have NO SMOKING and
other hazardous signs posted. Local supervisor should be notified of the
zone’s existence.
• A flammable gas detector should be used to monitor air in the Temporary Flammable Zone
• A dry powder or CO
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fire extinguisher must be available at service location
• Vacuum pump exhaust may contain harmful vapors. Failure to provide adequate ventilation may
lead to serious injury, including death.
• 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
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. Failure to do so may result in serious bodily injury, including death.
