As we discuss in this brief, the administrationâs reports to the court do not preclude the Legislature from assessing the measures identified by the administration and considering its own strategy for compliance with the court ruling based on its priorities.
The two most common causes of low head pressure at an air conditioner or heat pump compressor motor are: 1  Refrigerant under-charge, due to a refrigerant leak or improper charge.  TXV (TEV) malfunction, over-metering refrigerant.
Correct refrigerant flow in everything from your refrigerator to your air-conditioner ensures maximum efficiency and equipment life. The refrigerant metering device maintains the proper flow of refrigerant throughout your individual system. A refrigerant metering device causes a pressure drop, which causes a temperature drop. The resulting change in pressure and temperature allow heat to be absorbed during the refrigeration cycle. Two of the most common refrigerant metering devices are capillary tubes and thermal expansion valves (TXV).