Ice machine refrigeration tuning is precise, with very close tolerances required. Because of the precision required, components like head pressure regulating valves and thermostatic expansion valves (TXVs) in most ice machines have factory-fixed settings, and faulty parts require replacement rather than adjustment.

As issues related to food safety continue to take a high priority in the minds of consumers, those involved in the design of refrigeration equipment continue to look at ways to keep foods in need of cooling or freezing at proper temperature.

As energy costs and regulatory demands for system efficiency increase, thermostatic expansion valves (TXVs) are replacing capillary tubes, particularly in residential air conditioning and heat pumps.

Research has led to new ways for analyzing and using sensor information, and we now have algorithms to predict with some certainty when a specific kind of equipment malfunction will occur.