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Austin Higgins
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Buck-Boost Transformers
HVAC systems often fail early or don't perform well due to inconsistent power. While technicians can't control a home's main power supply, they can stabilize it at the system using buck-boost transformers. These devices adjust voltage up or down to meet the equipment’s needs. As HVAC systems become more advanced, understanding buck-boost transformers will be […]
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32°F Saturation (Evap Temperature)
Evaporator temperatures below 32°F (or 0°C) are common and acceptable in refrigeration; that's why there is a defrost sequence. It's the same story for a heat pump running in heat mode; freezing is a part of the process, and defrost is necessary. In comfort cooling, we can't allow the evaporator to get below 32°F, or […]
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Upgrading a Single-Pole Contactor with a SureSwitch: Using a Wiring Diagram
Along the path to becoming a great HVAC technician lies the dreaded wiring diagram. It's meant to be a helpful map of the equipment's electrical system, but with its crisscrossing lines and cryptic symbols, it often feels more like a barrier than a guide. If this sounds familiar, you're not alone. But what if you […]
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