HVAC Control Transformer Bank | DDC Installation

by | Direct Digital Controls | 0 comments

HVAC Control Transformer BankHVAC Control Transformer Bank - This bank of transformers is being used to power several VAV box controllers. One of many VAV boxes is powered by one of these transformers. In most VAV box applications, the power for the control system is at the box and a properly sized transformer for VA load is used to power the controller. In this application, the VAV boxes were not fan-powered and line voltage was not available in the boxes. So a central transformer bank was used and a wire for control power was pulled to each VAV box. (more…)

HVAC and Electrical Fundamentals | Heating, Cooling, and Electrical

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HVAC and Electrical Fundamentals
HVAC and Electrical Fundamentals - Electricity is usually produced by a generator at a power station and delivered to sub-stations for distribution to homes and businesses. Electricity can also be produced using chemicals like the chemical processes produced in batteries. There is also static electricity which is generally produced from friction and is oftentimes uncontrollable like lightning. (more…)