3 Way Switch Wiring Explained

In this video we explain how 3-way switches are built and wired using several examples including how to wire a stairwell with 3-way switches.

ESTIMATING SPREADSHEETS

✅ #1 HVAC & Plumbing Estimating Spreadsheet: https://mepacademy.gumroad.com/l/AgJDH
✅ HVAC Estimating Spreadsheet: https://mepacademy.gumroad.com/l/fhxei
✅ Plumbing Estimating Spreadsheet: https://mepacademy.gumroad.com/l/bcdah
✅ Residential Estimating Spreadsheet: https://mepacademy.gumroad.com/l/tdwbh

NEWSLETTER & YOUTUBE SUBSCRIBE
✅ Subscribe for more Videos like this: https://bit.ly/3J21zXL
✅ Signup for our FREE Engineering/Construction Newsletter: http://eepurl.com/hJGcTL

CONSTRUCTION PROPOSAL TEMPLATE
✅ https://mepacademy.gumroad.com/l/pzxzwi

✅ Watch our most recent videos:    / mepacademy  

------------------- SOCIAL ------------------
⚙️ MEP Academy Website - https://mepacademy.com
⚙️ Twitter -   / mep_academy  
⚙️ Facebook:   / mechanicaltrades  

--------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, Air-Cooled & Water-Cooled:    • 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  

VARIABLE REFRIGERANT FLOW
💧VRF Videos:    / @vrfwizard  

#MEPAcademy #HVAC #Engineering