Learn where Variable Frequency Drives (VFD's) are used in HVAC Systems such as Fans, Pumps and Compressors, and how they are controlled.
What makes the VFD change speeds? How do Variable Speed Drives work in HVAC Systems? What is used to give commands to the Variable Frequency Drive in a Pumping System or in a Variable Air Volume System? VFD's are also call Variable Speed Drives (VSD).
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💧How Chillers Work, Air-Cooled & Water-Cooled: https://youtu.be/q-Oooe0G7_c
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💧How Cooling Towers Work, Crossflow vs Counterflow: https://youtu.be/0I46O8Cnbk4
HVAC SYSTEMS
💧How a Variable Air Volume System Works: https://youtu.be/jXV3i9_QOhQ
💧Rooftop Packaged HVAC Units Explained: https://youtu.be/0XDOoybvXj0
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💧Refrigeration Cycle: https://youtu.be/IGqhWn0ZlfU
💧Refrigerant Piping Insulation: https://youtu.be/jadspqwvMmQ
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CONSTRUCTION BASICS
💧General Layout of Construction Drawings: https://youtu.be/YVGO6cLqKGQ
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HVAC ENGINEERING and CALCULATIONS
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💧Fan Laws, Calculate CFM, SP, RPM, HP: https://youtu.be/txnANkfsg6M
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💧HVAC Piping Unit Pricing: https://youtu.be/CcXD12JC7jw
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HYDRONICS and PIPING
💧How to Read Pump Chart and Select Pump: https://youtu.be/paziP4GdYio
ELECTRICAL and CONTROLS
💧How Variable Frequency Drives Work in HVAC Systems: https://youtu.be/DymWILTmSNc
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