Vacuum pumps are part of among the final procedures in the repair process. After you’ve diagnosed and repaired any leaks or additional issues in the system it’s time to Ac Vacuum Pump recharge. Before recharging you want to make sure the machine is free from any undesirable gasses, air, or water. If they were to stay in the machine, it could turn the oil it runs on into sludge and leave behind damaging impurities.

The draw on a vacuum pump is usually broken down into its “CFM,” or Cubic Feet each and every minute. To estimate what your CFM needs, look at the tonnage of the systems you focus on. Take the square root of that number and you’ll get the approximate CFM you need to have to work with that system. Typical residential systems need 4-5 CFM, while industrial and rooftop systems generally need just as much as 6-8 CFM.