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: mepacademy.gumroad.com/l/AgJDH
✅ HVAC Estimating Spreadsheet: mepacademy.gumroad.com/l/fhxei
✅ Plumbing Estimating Spreadsheet: mepacademy.gumroad.com/l/bcdah
✅ Residential Estimating Spreadsheet: mepacademy.gumroad.com/l/tdwbh
NEWSLETTER & TH-cam SUBSCRIBE
✅ Subscribe for more Videos like this: bit.ly/3J21zXL
✅ Signup for our FREE Engineering/Construction Newsletter: eepurl.com/hJGcTL
CONSTRUCTION PROPOSAL TEMPLATE
✅ mepacademy.gumroad.com/l/pzxzwi
✅ Watch our most recent videos: / mepacademy
------------------- SOCIAL ------------------
⚙️ MEP Academy Website - 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...
💧Fan Laws, Calculate CFM, SP, RPM, HP: • Fan Laws How to Calcul...
💧How to Calculate Static Pressure and CFM: • How to Calculate Stati...
💧Condensate Piping Design and Sizing: • Condensate Piping Desi...
💧How do you define a BTU or Tons of AC: • What is a BTU or Ton o...
💧Sensible Heat Transfer Equation for Water: • Sensible Heat Transfer...
💧Sensible Heat Transfer Equation for Air: • Sensible Heat Transfer...
💧Sensible and Latent Heat Transfer Formula for Air: • Sensible and Latent He...
CHILLERS and COOLING TOWERS
💧How Chillers Work, Air-Cooled & Water-Cooled: • How Air and Water Cool...
💧Chiller IPLV Calculation: • Chiller IPLV Calculation
💧Calculate Total BTU of Chiller or Coil: • How to Calculate Total...
💧Calculate GPM or TDH of Chiller or Coil: • How to calculate GPM o...
💧How Cooling Towers Work, Crossflow vs Counterflow: • How Cooling Towers Wor...
REFRIGERATION and REFRIGERANTS
💧How Electronic Expansion Valves Work: • How Electronic Expansi...
💧Refrigeration Cycle: • Refrigeration Cycle 101
💧Refrigerant Piping Insulation: • Refrigerant Piping Ins...
💧New Refrigerants, Codes and Standards: • New Refrigerants Codes...
HVAC SYSTEMS
💧How a Variable Air Volume System Works: • How a Variable Air Vol...
💧Rooftop Packaged HVAC Units Explained: • Rooftop Packaged HVAC ...
💧How Heat Pumps Work: • How Heat Pumps Work Ai...
💧How a Condensing Boiler Works: • How a Condensing Boile...
ESTIMATING
💧HVAC Piping Unit Pricing: • HVAC Piping Unit Pricing
💧HVAC Equipment Cost Database: • HVAC Equipment Cost Da...
💧MEP Estimating Spreadsheet: • HVAC and Plumbing Cons...
💧Construction Labor Rates with Burden: • How to Figure Construc...
HYDRONICS and PIPING
💧How to Read Pump Chart and Select Pump: • How to Read Pump Chart...
BUSINESS - CONSTRUCTION & CONTRACTING
💧Bid Bonds and Performance Bonds: • Construction Bid Bond ...
💧Top 3 Things to Know Before Bidding Commercial Projects: • Top 3 Things to Know B...
💧Top 12 Construction Bidding Websites: • Top 12 Construction Bi...
CONSTRUCTION BASICS
💧General Layout of Construction Drawings: • General Layout of Cons...
💧How to Read Specifications: • How to Read Constructi...
ELECTRICAL and CONTROLS
⚡How Variable Frequency Drives Work in HVAC Systems: • How Variable Frequency...
⚡How a Power Factor Works: • How a Power Factor Works
⚡Ohms Law: • Ohm's Law
⚡3Phase Electricity - How it Works: • 3 Phase Electricity Ho...
VARIABLE REFRIGERANT FLOW
💧VRF Videos: / @vrfwizard
#MEPAcademy #HVAC #Engineering

[@DumstruckFishing]

This video helped me with my 3-way switch after many frustrated hours. Thank you!

[@MEPAcademy]

Glad it helped! Thanks for watching.

[@joepie221]

New sub here. Thanks for the video. Well done.

[@MEPAcademy]

Awesome, thanks for watching.

[@fatfreeheo]

Thank you so much. A picture worth a thousand words.

[@MEPAcademy]

You're very welcome. Thanks for watching.

[@alexanderpappas68]

Finally, someone with a brain explained it intelligently and did so by the 1 min 40 second mark. Bravo!!!

[@MEPAcademy]

Thanks for watching.

[@steveschwicke374]

I find it's always seemed to make a lot more sense to my electricians on site to explain what side was getting the power from the service panel, and what side was giving the power to the lights, this would help them, remember how to keep the wiring done correctly without making a mistake, it might seem like it's something they should already know but a quick reminder always helped them,

[@MEPAcademy]

That's definitely good advice. Thanks for watching.

[@GotchaplumberGotchahvac]

Great three-way switch electrical video.

[@MEPAcademy]

Glad you enjoyed it. Thanks for watching.

[@Elpipiton]

Awesome man

[@MEPAcademy]

Thanks for watching.

[@leon3234]

Perfect video. Explain well. Thanks.

[@MEPAcademy]

Glad it was helpful! Thanks for watching.

[@KhalilAhmad74036]

Greeat information, Sir!

[@MEPAcademy]

Thank you

[@zandrabaptiste5481]

On the 3rd scenario showing the stairway with a switch at the top of stairs and a switch at the bottom of the stairs I see a code problem. There is not a neutral wire in either switch box.

[@vivianoni9565]

From its namesake p. linked at MEP, this explanation sticks b/c the switch schematics are clear.

[@MEPAcademy]

Thanks for watching.