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There are several reasons why the compressor discharge temperature of a refrigeration system can be high when the condensing temperature is not, and a checklist can help a technician figure out the root problem.
Microchannel coils are lightweight, offer better heat transfer, and use less refrigerant than traditional fin-and-tube coils; however, care must be taken when charging, as even a few ounces could reduce a systems’ performance, efficiency, and reliability.
Triple Play Home Services, a home service provider based out of Edmond, Oklahoma, acquired Comfy Bear Plumbing, Heating, and Air, an established HVAC and plumbing company based in Oklahoma.
Copper was the mainstay in HVAC and refrigeration coils until 2011, when copper prices went through the roof. As manufacturers began testing alternatives, the industry settled on aluminum as a workable, less costly option.
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.