The use of ductless heat pump HVAC systems has broadened considerably since they were introduced to the U.S. market decades ago, but their technology isn’t familiar to all technicians or in all parts of the country.
Technicians should learn how to troubleshoot defrost timers, as they can be the culprit if a freezer that uses an electric heater as its supplemental heat source has a frozen evaporator coil.
A split system heat pump's defrost sensor is used to detect ice buildup on the heat pump's outdoor coil. The exact way in which a defrost sensor works can vary.
Conducting planned maintenance on refrigeration equipment is beneficial to both equipment owners and contractors. However, simple tasks can turn into problems if not done properly or without taking the necessary precautions.
Successful companies seem to always look for ways to improve operations. The Delfield Co. recently demonstrated this by taking an in-depth look at their brazing processes for refrigerant systems.
Repairing refrigeration systems can be challenging, especially when a system has multiple problems. Technicians should have patience during the troubleshooting process, as it is easy to rush to an early conclusion.