What are Wet & Dry Contacts

[@beanwellnkhata8092]

Thank you for the informative lesson once again.

[@jeffb6276]

You taught me something I was looking to know and something I had down-the-line to learn. Thank you

[@politiciansthrowstones]

A wet contact uses the power supply of the board itself to power components. Dry Contact is just passing through from an external power source

[@publikanguro.tecno.marketing]

Thank you!! I undertand most of the explanation, even though I don´t speak English. Thank You HVAC School!

[@IoriYagami-p8m]

You just blew my mind! Thank you

[@boolfnasa2582]

Thank you, the Wet Contact is clear, but you missed to explain what is the use of this DO1 (dry contact), what does it do sitting there? It probably feeds the coil of relay which in turn does the WET contact job.

[@Ladiesman7790]

Simply... DO1 is dry contact and DO2, DO3 are wet contact ?

[@NyashaKeys]

Clear as mud

[@HVACS]

I guess this one isn’t for you

[@tgd02]

make your own video then jackass

[@toddmediumwellingtoniii478]

wow I got alot I need to learn thanks for the upload!!

[@timburke4136]

The explanation would be dramatically better if your diagram wasn't missing 3/4s of all the wires. This is a simplified diagram that people would need to be familiar with regarding the standards, definitions etc. Put together a diagram that has all the wires in it so everyone can understand it.

[@turkucakmak155]

Dry Contacts: 1. 1-2 are dry contacts. 2. There is no automatic input for 1 and 2. Its not taking what you're feeding the control with. You either feed 1 or 2 by applying voltage. anything else?

[@shine-cg9uf]

What’s DO1, DO2, DO3 mean ?

[@Jessebaldwin-cp1hl]

is there any shop that turns water softner cam journals after 100k miles

[@whitesheatingairappliancer7101]

Thank you for the email and the link too the video. Great video thank you

[@Randylazz]

Very good explanation........= )

[@marcemarce9821]

Thank you very much

[@GeoFry3]

So in one case (dry) you have to hook up power from an external power source directly to the relay. In the other case you have to hook power from an external power source to a control board (wet) which in turn hooks up power to the relay........... So in other words it is the same damn thing but one has basically a control board and one does not. What a useless term.

[@SpirosIoannou-sivann]

It's rather simple. Let's consider outputs. Dry DO (digital output): a switch controlled by some circuit, (like a relay). Wet DO: it's actually Vout controlled by a circuit. i.e. wet DO is a signal, (like the DTR of the RS232).

[@zerogravityriding8615]

Thank you soo much helped alot

[@derekevans7780]

A lot is two words man, not one!

[@mava5634]

dry contacts, did not give a good example, wet contacts clear explanation

[@HVACS]

Thanks for the feedback

[@user-ot3zk5me5l]

3:30 is a perfect example

[@tgd02]

thank you!

[@mazloomqom8794]

made too complicated ... didnt understand ...