How To Charge My Home Air Conditioner. Ac isn't blowing cold air. This will force freon into your unit, effectively recharging your air conditioner in the process.
You want the reading to be as close to 40 psi as possible. 2 attach the hoses from the gauge manifold to your system's pressure ports. Recharging a central air refrigerant involves hooking up the gauges and taking accurate temperature reads, but it also requires an epa certification. Remove the freon container and the two valves that you installed. In addition, sometimes units merely need a reset to trigger.
Consult the instruction booklet of your air conditioner to find out the psi (pounds per square inch) for a full charge.
Technicians charge an ac compressor at the outside unit. Make sure the compressor is running before you attempt to charge it. Want cold air in your car this summer? Some air conditioning tech says you need freon. When you're assured that everything is connected tightly and properly with no potential for leaks, plug in your window ac unit and power it on at its highest setting. If everything is working properly, your ac should never need refrigerant.