HVAC Tech School: Live P1: Intro to DDC and Building Automation Controls

This live class was taped in October of 2014 at Stromquist & Company in Atlanta, GA. It's broken out into 3 parts. Part one discusses the various communication protocols, benefits of DDC and gives an introduction to controllers and supervisory controllers. Please leave any questions or comments below and we'll do our best to get them answered.
Please watch part 2 of the class which consists of the importance of always asking for a truly open Building Automation System.
Part 3 is a deep dive into Communication Protocols

[@ijazshah1028]

Valuable and informative content for Commissioning Engineers, Facility Managers, System Designers, HVAC Application Engineers. Thanks for sharing.

[@2EXPLORANDO]

Awesome and very informative, they should publish more videos like these series, very much appreciated!!!!

[@lethanhhien3326]

can you tell me the software to program a alerton DDC, please? is it free?

[@patrickjones7434]

David Acosta Hi check out the building automation monthly website it’s an online website

[@ryanwilson3049]

Thanks for these!

[@redwhite286]

very helpful thank you very much

[@hassansubzwari2622]

Thanks for the video. I have just started learning about BMS Building management system. I have interview coming up after 2 days on monday and they need someone who knows about BMS. I hope i could be able to nail the interview with the help of such helpful videos.

[@ChiomaOkeke]

How did you do?

[@gsifuentes8959]

Great video sir!.

[@ev3goddess]

Great health care power viewpoint👍🏾

[@BlueAgaveStudios]

A VAV Box controls temperature in many cases (cooling, typically) as a function of airflow, modulated by the box airflow damper. So an additional input refered to as a flow ring is really the differential pressure across the ring extrapolated to flow (sq root) for the purposes of a soft PID loop looking at flow and controling to a defined setpoint via the damper motor. This was not pointed out by the instructor, and air flow was pretty much ignored.

[@hami843]

very helpful thank you

[@mikehoholek8070]

Great video

[@jivancich]

Thanks

[@sabk79]

Awesome

[@nnjvhvhhgc5213]

Great content! How do I get ahold of the slides you used while teaching this course?

[@JECTONETRIVAN]

The presentation is really good,how can I get more materials like such.

[@mjad5313]

I am looking to be a technical certified BMS control system. Any advice where I can start with? Thank you.

[@engineerSalih]

42:00 There are many network topology used in industry , to clarify, I'm gonna talk about only 2 of them that are related to this topic. 1. Daisy chain: Can be either linear ( wired in sequenced ) or it can be ring ( the last devices is connected back to the first device). The difference between the two is that In case of a single component failure in a linear daisy chain, the network WILL FAIL! , while in ring topology it is still possible for the transmission to go in reverse direction. 2. The topology in 45:15 cannot be called daisy chain, It is called "Multi-drop", "trunk & cable" or " bus". This topology is suitable to maintain its connectivity in multi-failure scenario as you stated, it is just NOT daisy chain.

[@lethanhhien3326]

can you tell me the software to program a alerton DDC, please? is it free?

[@engineerSalih]

file.yizimg.com/306591/2010062508532715.pdf

[@lethanhhien3326]

i need a the link to download the software, please!

[@MR-nl8xr]

Daisy chain is a slang term used for wiring electrical devices and circuits in PARALELL, anything else is considered a circuit or device wired in SERIES. So, yes, he can call the topology of 45:15 a Daisy Chain.

[@Le001M66]

Great video! I haven't watched through the whole thing yet but, is a "Jace" the same as a "bridge"?

[@jollyjojo9912]

Hi, Thanks for sharing this video, I am Jolly from Philippines and currently taking up BS Electrical Engineering. And part of my education requirement, I need to make a Thesis. I have a background and experienced in operating BAS here my current work. but don't have in depth knowledge regarding BAS, DDC, installation set up,field control and how its hardware and software works in the Building. My propose Thesis topic is about the New User Interface and Integration of BAS in our company. Kindly help me any links or information where i can gathered data to make my Thesis feasible. I'm looking forward for your great help to make my dreams as BS Electrical Engineering. God bless!!

[@patrickjones7434]

Jolly JoJo check out person from the USA his name is Phil zilo from building automation monthly that’s the website

[@tmst2199]

Any idea why they're called "direct" controls?

[@tammyghashghaie3406]

Dear Professor Lovely lecture how can i register for Jace class or other classes? could you please be kind aid me regard Tammy

[@patrickjones7434]

tammy ghashghaie the best way is to look at the building automation monthly

[@masterchef6694]

and....when do we need a ddc with and without a display?

[@patrickjones7434]

Abhijit Shetty Hi check out the website called the building automation monthly by phil zilo

[@mechbruno3051]

Hi, Is there an email address that I can write to you directly? I really like this presentation and I cannot find the contact information to reach you. Thanks

[@patrickjones7434]

bruno check out building automation monthly the persons name is Phil zilo

[@masterchef6694]

what is the difference between a PLC and a ddc?

[@patrickjones7434]

Abhijit Shetty plc stands. For programming logic controller and ddc stands for direct digital controller . The website called building automation monthly

[@trulyhumane1591]

Literally there is no difference because both are programmable logic controllers based on microprocessors but DDC is especially developed for Building Control applications. The DDCs have well defined libraries of functional blocks that makes their programming much easier as compared to the PLCs which are generally used across all applications.

[@abdulwahab2844]

How many DDC can connect in 1 network

[@RishiReveri]

65

[@patrickjones7434]

Abdul Wahab pending the size of the building. Check out the building automation monthly website .

[@ev3goddess]

🌚✨⚓️

[@scottlsu]

The term is "normalizing"

[@EricStromquist]

Thanks Scott, you are correct. The Jace "normalizes" the data brought into one common language. Thanks for watching and thanks for catching.

[@patrickjones7434]

scottlsu check out the online website called building automation monthly training programme

[@osquareteck9090]

Can someone in the house help me with full meaning of DDC

[@ricardopipiles]

direct digital control

[@osquareteck9090]

+ricardopipiles Thanks.

[@patrickjones7434]

Osquare Hi check out building automation monthly headed by Phil zilo the founder of online training website called building automation monthly best of luck

[@Tugg_Speedman.]

Tough crowd

[@boolve]

Not sure why not too use proper word to describe how to connect controllers it's simply - wire it in parallel.

[@rlukinn]

You are right, but here is not exactly parallel. Daisy chain connection is slightly different.

[@patrickjones7434]

Arentas REC check out the building automation monthly online website .