HVAC Training Board: How To Check A General Purpose Switching Relay With A Multi Meter Using Voltage

HVAC Training Board: How To Check A General Purpose Switching HVAC Relay With Voltage Using A Multi Meter (Relay Troubleshooting) HVACR TRAINING BOARD
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HVACR: General Purpose Switching Relays EXPLAINED (How It Works)
• HVACR: General Purpose...
HVAC/R: What is a control RELAY and how does it work?
• HVAC/R: What is a cont...
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The MARS Series 903 switching relays are intended for many applications in air conditioning, refrigeration, and heating. Other uses include general purpose switching in appliances, fan controls, and vending machines. Our relays are available in 24, 110/120, and 208/240 coil voltages with various
combinations of power and pilot duty contacts.
903 series switching relay receives and controls electrical signals for general purpose applications. This switching relay has double pole double throw contacts and is suitable for use in heating, air conditioning and refrigeration applications, appliance vending machines, fan controls and business machines.
Relay switches (also called an electrical relay or an electrical relay switch) use a small amount of power to control a larger source of power connected to electrical devices such as car motors, computers, and lighting installations. A basic relay switch has a control circuit with an electromagnetic coil and a load circuit with contacts and a lever. When current flows into the relay switch, it moves through the coil and a magnetic field is created, which causes the lever in the load circuit to move between contacts, either turning the device on or off. In a normally open (NO) relay switch, when power is supplied to the relay, the load circuit is closed and the power source connected to the relay is turned on. In a normally closed (NC) relay switch, when power is supplied to the relay, the load circuit is open and the power source connected to the relay is turned off. In other types of relay switches, non-moving parts such as transistors or semiconductors can be used as the control circuit to operate the switching mechanism. Relay switches can be controlled with an external switch, such as a light switch, or they can be connected to an automatically switched power source, such as a car ignition. One relay can operate multiple switches, and multiple relays can be operated with a single switch, with each relay operating independently from the other relays in the system.
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[@tresmoore6199]

Many videos ago I remember saying you would make a great instructor. You've proven me right. Keep up the great vids Jumper. I'm not even in the HVAC business anymore (did it for 16 years) but I still watch your vids due to the high quality content.

[@dammo361]

Can't get any clearer then this..... After one year school and one year in commercial this is the best .....

[@sherwinalvarez7365]

This is a great training video. More like this please.

[@dammo361]

Bro you just made the best training video..... Thanks alot ....

[@batbawls]

Very high quality content. Keep it coming!

[@kennethlobo4420]

Great explanation. God Bless

[@richbooth9030]

Follow you ALL the timeYou do a concise job all the time. Love your channel

[@ThebrownFREEK]

Appreciate the quality of video! clear and concise breakdown of how everything works. Keep it up my g!

[@octaviooro9182]

Very informative and easy to understand thank you keep this videos coming.

[@thesilentonevictor]

Great job professor 😆

[@izzybell11]

Helpful and interesting video. Great tutorial. Great job JMT.

[@carvajal01]

Super...thanks I just started in hvac in Chicago...is good to more in this job....

[@bryanblack190]

Thanks for this video! The simplified AC system representation on a board was a great help. When you get inside an actual AC unit, everything seems to be jumbled together and it's harder to understand what is going on. This helps a lot to understand what needs to happen for the system to work. Now I need to check and see if you have a video on how the capacitors work! Thanks again!

[@jollyscaria1922]

Vrey good

[@ammarmahmoudi6896]

Great explanation, very clear. Please, carry on your excellent help.

[@luckizt]

this is really cool. Basically an art piece as well

[@jamesblatterman]

Thanks 4 the video. im a student. This helps in class.

[@JumpermanTech]

You're very welcome. Thanks for watching and stay tuned for new videos every week! 🔧⚡️

[@jrh86]

Excellent as per thank you JM

[@urielgarciaramirez208]

thanks for takking your time on making this board, I am a visual learner and this basically set me up for a really good mark on my wiring test I have. T

[@alexeytech1495]

Nice visual material. Keep going.

[@theprofessor5584]

Excellent wiring hvac video

[@BillyN31]

A thing to point out…you read volts wire to wire on the relay because there is a load between them.

[@BrentS100]

Awesome explanation! Thank you so much!! I’m subscribed, brother!! Keep them coming!!

[@vernessalkic1065]

Just a great video!

[@zekenzy6486]

Great Video. Thank you for sharing

[@raymedina6509]

Great Video, thanks.

[@simohvac9222]

very good explanation man

[@BillyN31]

Great video brother!

[@soloch69]

Great video keep up the great work keep them videos coming

[@influenz1490]

Great video! I feel like I learned something 👍🏼😂

[@i-d-m-system.5697]

Very nice work

[@ILoveKittys78]

Amazing❤

[@Eddy63]

Could you take a sharpie and label the component's on your board ... AC fan , compressor etc ... Excellent explanations especially for new techs ... Thx for sharing ...

[@odeliocepeda6054]

Thanks JMT for another Awesome video. What is the name of the access port brackets? Holding the access ports?

[@tedh9211]

Nice

[@zabihserat6071]

It’s great

[@JumpermanTech]

Thank you!!

[@taylorsgolf813]

Just check continuity between contacts. If it's normally open and you hear the beep you know relay is bad and vice versa

[@olurotimiadepitan5087]

Thanks for your great content. What about about a call for heat or cooling. Is this setup only for fan?

[@clentcliffordespera3892]

I am lucky when i experience this kind of hvac control.

[@davegrubb3897]

Hi. Thanks for sharing your knowledge with this. We recently added a booster fan to our HVAC system, and have it wired back to the furnace to kick on with the blower. We have it relayed with a 24v relay switch as you show here. Unfortunately for us, it is mounted on the floor joists directly below our family room and the relay switch “Pop” is incredibly loud when it opens and closes. Wondering if you know of any quiet relay switches that would work, or any tips on how we might be able to minimize the noise. Any suggestions you have would be greatly appreciated. Thanks again!

[@weavercattlecompany]

Depending the amp draw, you might try a solid state relay instead ... no clicking or popping noise I promise 😉

[@arnelarcedo132]

hi , this is an excellent work and will help a lot of students. i would love to follow you and support this video. do you have a ladder diagram for this set up? thank you

[@Mars4190]

Are you a teacher are your local? you got some great videos

[@Sc19869]

A relay and a contactor are just switches that open and close? Question bro, what do we use when we check resistance. Are we checking for shorts? Also when we get an ol, open line, is that again thing. Thank you for your knowledge.

[@salemalmatouq2171]

Hi Whrer the black wire direction from thermostat to contactor or relay.

[@WallaceRoseVincent]

Have you ever thought of being an electrical engineer? Nice training board!

[@boybravo689]

Sir may i know if the indoor fan motor contactor has the same with the outdoor fan and compressor contactor sir tnx

[@Yods8]

I’d like to build that panel, do you have a parts list and plan that you can share? Thanks!

[@josephvillas6960]

Can you teach us also how to check the sequencer? Thank you very much in advance

[@theresagibson5425]

3 mconkey unit 9 left items behind what would it be disconnected so eveytime that went on transformer and antenna uhf vhf removed commsco0e rampron ot my lcowrion may 2018 vacuuum tubing and bose speaker displays microsoft visual srudio? Mosfet omron cooling relay as what is rosemount controls nutrerwoeth settings f1 imac retina f1 is 4ghz so what is thisa.

[@romeogad6680]

please describe how is this board is wired from main power socket to each component to have different

[@adagiotexas]

Is a relay the same thing as a transformer in an HVAC system?

[@danielzertuche9893]

Hey Mr. Jumper Man, I like your training broad I would like to make one for me. Do you have the diagrams where? Thanks Daniel Z

[@viper22304]

nice video but you didn't explain where is this relay located or seen in the HVAC system or why use this relay

[@ranimouf]

You should ve icluded a heat strip which could ve been more helpful. Thanks

[@whittemamba4917]

Why does voltage go away when it gets energized confused on that part??

[@andrewferber7480]

1st, voltage measures a difference between two points. So, the voltage goes away (is equal between two points) because the electrical current moves through the circuit to the next load. I hope that helps.

[@theresagibson5425]

5 wire not 4 honeywell thermostat lightswitch left behind no rf as disconnected theory was mosfet omron cooling transformer video as had time in the house so arc on electrical as subpump room jack 5 wire on side of lighswitch whhat would it be as home inspector never saw before left behind

[@muhammadnaeem4834]

Ahu and packge ac " vidios"

[@DougWater]

Please replace that receptacle with a male cordcap, use a regular extension cord, and destroy the male/male cheater cord that I'm assuming you're currently using to supply power to the receptacle.