To determine whether to use superheat or subcool for charging, look at the TXV's position in the system. If it's before the evaporator, use superheat; if it's before the condenser, use subcool. The placement of the TXV is crucial for effective refrigerant management. ;
To determine charging methods using a TXV, check its location. Use superheat if the TXV is before the evaporator, and use subcool if it is before the condenser. This placement is essential for optimizing system performance.
;