Another key piece of equipment for effective valve care is a tubing cutter, which is used to precisely cut and replace any tubing connected to the expansion valve. This tool enables technicians to make clean and accurate cuts, ensuring a secure connection that prevents leaks and maintains the integrity of the system. Furthermore, having a quality set of adjustable wrenches is vital for tightening or loosening fittings and connections around the expansion valve without causing damage. These tools, when used correctly, contribute to the overall efficiency and longevity of split system units by facilitating proper maintenance of the expansion valve.