110V Rotary Vane Air Vacuum Pump HVAC A/C Refrigeration Kit AC Manifold Gauge Set R134A R12 R22 R404A R410A with Carrying Bag/Tote

This 3CFM 1/4HP Vacuum Pump with Manifold Gauge Set offers a versatile solution for air conditioning, HVAC, refrigeration, and industrial applications that require efficient vacuum extraction. The package includes a comprehensive set of features to meet your diverse needs.

Pump Specifications: - Pump Flow Rate (FAD): 3CFM, 3.5CFM, 4CFM, or 4.5CFM - Pump Rated Power: 1/4HP or 1/3HP - Oil Capacity: 220ml or 225ml

Manifold Gauge Set: - High-quality manifold with quick coupler - Red gauge (high): 0-800 PSI - Blue gauge (low): 0-500 PSI - Gauge reading for R12, R22, R134a, R410a - Red hose: 800psi-4000psi - Blue/Yellow hose: 600psi-3000psi - Hose length: 47 inches - Manifold fitting and hoses: 1/4" - Quick Connectors: 1/4"male SAE

Vacuum Pump Features: - 110V 60Hz 1/4 or 1/3 horsepower motor - Single-stage rotary vane vacuum pump - High efficiency and low noise - Built-in large capacity cooling fan for long-term use - Storage bags to keep equipment clean and dust-free - Drain plug located at the bottom of the reservoir

Accessories Included: - 3 color-coded 43-inch hoses (red, blue, yellow) - 1 bottle of vacuum pump oil - 2 R410a adapters - Toolkit bag

Precautions for Vacuum Pump Maintenance: - Do not extract flammable, explosive, or toxic gases - Avoid gases that are corrosive to metals or react with pump oil - Gas temperature should not exceed 40°C, and operating environment should be between 5°C and 60°C - Do not use as a compression or delivery pump - Operate with oil, and do not block the exhaust port - Use the proper 192-248V, 50Hz power supply with grounding - Wear protective goggles when working with refrigerant - Avoid direct contact with refrigerant to prevent personal injury

Precautions for Customers before Startup: - Check for damage and leakage upon receiving the new machine - Fill the oil tank and let the oil mark line be visible - Plug in the machine, turn it on, and check if the vacuum pump is functioning properly

Gauge Maintenance: - If the refrigerant meter pointer does not point to 0, adjust it using a flat screwdriver.

Troubleshooting: - If the pump emits smoke or does not work, check the oil level and ensure proper use. - If the new machine is not working, try removing the fan cover and turning the fan blades clockwise. - If the machine stops working after a period of use, it may be due to poor gas extraction or improper use, and the same troubleshooting method can be tried.

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