The Lounge

Starting at $0/mo
This is the true "aircondlounge" where we sit down and have a meaningful discussion/debate. Also, here is where you can seek help from experienced engineers without being judged!

Paypal is now available for all products.

You can now purchase or subscribe using Paypal.

[YouTube] Damper Type, Function and Application

Dear Members,

I just published a YouTube video explaining the basic types of dampers used in HVAC, including their function and application. For those who are not familiar with dampers, come watch it and drop me a question.

Link to the video: https://www.youtube.com/watch?v=sXSvF5vYPQs

If you have subscribed to my YouTube channel, you may have notice I rarely upload any video because of other work. But now, I've prepared myself and I'll be publishing every Thursday at 9PM. Aside from HVAC, I'll also post videos about project engineering/management and general stuff as an engineer.

Thanks,
Yu

[NEW] Quiz - Intermediate Level

I've prepared a set of intermediate level HVAC quizzes which you can take in Fun HVAC Quiz.
Take them now to test your knowledge. If you haven't take the beginner level quiz, check that out too.

aircondlounge HVAC Calculator (v8.0)

Just updated the Duct Static Pressure Calculator in the Design Engineer Starter Pack. You can download the latest version (v8.0) from your product page now. Also improved the visual and cleanliness.

Chilled Water System CHEAT SHEET

Everyone can now download this NEW cheat sheet. Go to your product page.
I'll post on LinkedIn shortly after this.

New Product for Basic & Pro Plan Members

Basic & Pro Plan members can now access to Duct Fitting CAD Templates.
Go to your product page to view and download the files. Thank you.

New Membership Plans are Ready

Three(3) membership plans are now available to join - Free, Basic and Pro.
Check them out here: Membership Plan

Email update about this is scheduled to send on this Tuesday.

Improvements on Pressurization Fan Capacity Calculator

The Pressurization Fan Capacity excel calculator packed under Design Engineer Starter Pack has added 3 choices for the door type and their respective air leakage rate, and the lift lobby section has added the air leakage through lift landing door to improve the overall accuracy of the result.

Latest version: https://course.aircondlounge.com/view/downloads/design-engineer-starter-pack

cyda mdmad
Jul 1, 2024

Hi Yu, Thank you for the info. Just one question from me, do you calculate smoke spill fan capacity for above ground area same as basement area? If not, can you justify? Thank you.

cyda mdmad
Jul 19, 2024

ok noted. Please update me later. Thank you.

Updated Chilled Water Pipe Sizing Chart

The free to download Chilled Water Pipe Sizing Chart (ASHRAE & CARRIER) has added a colored sizing region which is convenient for us to quickly find the suitable pipe size.

Jong Fung Swee
Jun 20, 2024

Is just click on the title to download? or have other link?

Yu Chang Zhen
Jun 20, 2024

Just look under Product or More Product in your account dashboard and download.