Learn how waterside economizers work to save energy by reducing or eliminating the chiller run time. Learn the difference between an integrated and nonintegrated economizer system. Also know has FREE cooling, these strategies are mandated by some codes in certain situations. See how to retrofit an existing aircooled chiller central plant.


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IMPORTANT VIDEOS TO WATCH

HVAC ENGINEERING and CALCULATIONS
How to Calculate Motor Break Horsepower:    • How to Calculate Motor Brake Horsepower  
Fan Laws, Calculate CFM, SP, RPM, HP:    • Fan Laws How to Calculate CFM BHP SP RPM  
How to Calculate Static Pressure and CFM:    • How to Calculate Static Pressure and CFM  
Condensate Piping Design and Sizing:    • Condensate Piping Design and Sizing  
How do you define a BTU or Tons of AC:    • What is a BTU or Ton of Air Conditioning  
Sensible Heat Transfer Equation for Water:    • Sensible Heat Transfer Equation for W...  
Sensible Heat Transfer Equation for Air:    • Sensible Heat Transfer Equation for Air  
Sensible and Latent Heat Transfer Formula for Air:    • Sensible and Latent Heat Transfer For...  

CHILLERS and COOLING TOWERS
How Chillers Work, AirCooled & WaterCooled:    • How Air and Water Cooled Chillers Work  
Chiller IPLV Calculation:    • Chiller IPLV Calculation  
Calculate Total BTU of Chiller or Coil:    • How to Calculate Total BTUH of a Chil...  
Calculate GPM or TDH of Chiller or Coil:    • How to calculate GPM or TDH for a Coi...  
How Cooling Towers Work, Crossflow vs Counterflow:    • How Cooling Towers Work Counterflow v...  

REFRIGERATION and REFRIGERANTS
How Electronic Expansion Valves Work:    • How Electronic Expansion Valves Work  
Refrigeration Cycle:    • Refrigeration Cycle 101  
Refrigerant Piping Insulation:    • Refrigerant Piping Insulation Require...  
New Refrigerants, Codes and Standards:    • New Refrigerants Codes and Standards  

HVAC SYSTEMS
How a Variable Air Volume System Works:    • How a Variable Air Volume VAV System ...  
Rooftop Packaged HVAC Units Explained:    • Rooftop Packaged HVAC Units Explained  
How Heat Pumps Work:    • How Heat Pumps Work Air and Water Cooled  
How a Condensing Boiler Works:    • How a Condensing Boiler Works  

ESTIMATING
HVAC Piping Unit Pricing:    • HVAC Piping Unit Pricing  
HVAC Equipment Cost Database:    • HVAC Equipment Cost Database  
MEP Estimating Spreadsheet:    • HVAC and Plumbing Construction Estima...  
Construction Labor Rates with Burden:    • How to Figure Construction Labor Rate...  

HYDRONICS and PIPING
How to Read Pump Chart and Select Pump:    • How to Read Pump Chart and Select Pump  

BUSINESS – CONSTRUCTION & CONTRACTING
Bid Bonds and Performance Bonds:    • Construction Bid Bond with Performanc...  
Top 3 Things to Know Before Bidding Commercial Projects:    • Top 3 Things to Know Before Bidding C...  
Top 12 Construction Bidding Websites:    • Top 12 Construction Bidding Websites  

CONSTRUCTION BASICS
General Layout of Construction Drawings:    • General Layout of Construction Drawings  
How to Read Specifications:    • How to Read Construction Specifications  

ELECTRICAL and CONTROLS
⚡How Variable Frequency Drives Work in HVAC Systems:    • How Variable Frequency Drives Work in...  
⚡How a Power Factor Works:    • How a Power Factor Works  
⚡Ohms Law:    • Ohm's Law  
⚡3Phase Electricity – How it Works:    • 3 Phase Electricity How it Works  

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