This article will help to clarify what the various parts of a home Heating, Ventilating and Air Conditioning (HVAC) system are and help you understand what work is being specified with an HVAC repair price list. Regarding the purposes of this example, we will look at the components of an all-electric split heat pump system most typical in home HVAC installation. The heat pump itself is the outdoor part of the system. This consists mainly of the compressor, condenser coil, and fan. It also houses the reversing valve and electrical contractors. This is where your service tech will hook up his pressure gauges to see if there is the correct amount of refrigerant in your system. If refrigerant is needed, it is installed here through a interface. The bottle containing the freon will be weighed by a scale after and before filling your system to determine how much was used, and you would be charged by the pound. If there is a refrigerant leak in the coil it can usually be repaired, but all ...