Charging Central Air System

Most homes with an air conditioning system manufactured before january 1 2010 use r 22 as the refrigerant.

Charging central air system. Before attempting to learn how to charge an a c system you need to have your section 608 technician certification type 2 or universal there s lots of different equipment out there and if you want the real answer on charging an air conditioning system i might tell you to charge the unit according to manufacturer specs. Your central air conditioner works by performing a complex form of heat transfer with the assistance of a chemical refrigerant. Of course there are times with an air conditioning system loses refrigerant due to leaks or maintenance. When charging a new system or recharging an evacuated system the refrigerant is added by weight according to the system specifications but trimming a unit or adding to an existing refrigerant charge is less precise.

Central air conditioners are designed to continually cool the home to the desired temperature of the homeowner. Therefore you should never have to charge it. For step by step written instructions check out https www hvac for beginn. Air conditioning systems are designed to never leak refrigerant.

Ac systems with a low r 22 charge do not perform at peak efficiency. When your refrigerant level runs low the heat transfer does not take place and the unit while remaining functional and blowing air will not provide cold air. Because these systems do not control superheat it is critical that the airflow be as close to possible to correct prior to charging as the system will be charged to the airflow. The coolants they use are.

Check pressure and temperature readings and determine if more refrigerant is needed. This video will show you how to charge refrigerant to a central air conditioner. The total heat in the air will be the driving factor for the evaporator performance so low or high airflow will have a direct impact on the charge and the system. Recharging a central air refrigerant involves hooking up the gauges and taking accurate temperature reads but it also requires an epa certification.