Used for systems with a , this method measures the difference between the saturated liquid temperature and the actual liquid line temperature. A target subcooling value ensures the condenser has a solid liquid seal. 3. Superheat (For Fixed Orifice Systems)
Technicians use several proven methods to ensure a system is charged to manufacturer specifications: 1. The Weighing Method Used for systems with a , this method
Causes poor cooling, increased energy consumption, and high compressor temperatures. It often leads to evaporator coil freezing , which blocks airflow and strains the compressor. Leads to high internal pressure and liquid slugging
Leads to high internal pressure and liquid slugging , where liquid refrigerant enters the compressor. Since compressors are designed to compress gas, this can cause catastrophic mechanical failure. Core Charging Methods increased energy consumption
A standard professional service routine typically follows these steps: 8 Refrigerant Charge Methods You Need - Starget
Often considered the most accurate, this involves using an electronic scale to measure the exact weight of refrigerant added to the system. This is the preferred method for split systems or when the exact factory charge is known from the nameplate. 2. Subcooling (For TXV Systems)
Refrigerant Charging and Service Procedures for Air Conditioning