DUCTLESS Control and Humidity Hack with Cielo Breez - HVAC School

Search In:

Event Videos Tech Tips Apps Books Podcasts Users

HVAC Feed
Resources
Content
Courses
Events
Jobs
- Create a Job Post
- Job Posts
Shop
Partners

Search In:

Event Videos Tech Tips Apps Books Podcasts Users

+

Chinese (Simplified)

Subscribe to our Youtube channel

DUCTLESS Control and Humidity Hack with Cielo Breez

June 16, 2020

Comments

cdearruda @bryanorr

https://www.google.com/search?sxsrf=ALeKk00b4-uMU9wCAMLBEicsi3hM3lZwFw%3A1592332627345&source=hp&ei=UxHpXoCUEsKf_QaGqavICQ&q=cielo+pronunciation&oq=cielo+pro&gs_lcp=ChFtb2JpbGUtZ3dzLXdpei1ocBABGAAyAggAMgIIADICCAAyAggAMgIIADICCAAyAggAMgIIADoHCCMQ6gIQJzoECCMQJzoFCAAQsQM6AgguOgUILhCxAzoFCAAQgwFQ6xJYxzxgylFoAHAAeAGAAeIEiAGyHJIBCzAuMi4zLjQuMC4ymAEAoAEBsAEP&sclient=mobile-gws-wiz-hp

Cielo, Spanish for sky (or something like sky).

6/16/20 at 01:40 PM

https://www.google.com/search?sxsrf=ALeKk00b4-uMU9wCAMLBEicsi3hM3lZwFw%3A1592332627345&source=hp&ei=UxHpXoCUEsKf_QaGqavICQ&q=cielo+pronunciation&oq=cielo+pro&gs_lcp=ChFtb2JpbGUtZ3dzLXdpei1ocBABGAAyAggAMgIIADICCAAyAggAMgIIADICCAAyAggAMgIIADoHCCMQ6gIQJzoECCMQJzoFCAAQsQM6AgguOgUILhCxAzoFCAAQgwFQ6xJYxzxgylFoAHAAeAGAAeIEiAGyHJIBCzAuMi4zLjQuMC4ymAEAoAEBsAEP&sclient=mobile-gws-wiz-hp

Cielo, Spanish for sky (or something like sky).

Files:

Eva Y @bryanorr

Very cool!

6/17/20 at 07:58 AM

Very cool!

Files:

To leave a comment, you need to log in.

Most popular videos

Check out our most recent video

How to Evacuate an AC system, Full Vacuum Procedure

Our latest Podcast

HVAC School – For Techs, By Techs

HVAC School – For Techs, By Techs

Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

Delta T Talk w/ JD Kelly

byBryan Orr

Bryan from HVAC School interviews JD Kelly, known as “student of HVAC” on Instagram, about Delta T measurements in HVAC systems. This episode dives into the fundamentals of Delta T, common misconceptions, and proper measurement techniques.

JD explains that Delta T is simply a temperature difference between two points of the same medium, which is often misunderstood in the industry. Many technicians are taught to measure between return grills and supply registers, but this approach can lead to inaccurate readings due to external factors like duct leakage or heat gain from attics. The proper measurement should be taken directly at the equipment to evaluate how the evaporator coil is performing.

Humidity plays a significant role in Delta T measurements, which JD discovered when researching the fundamentals. Bryan elaborates on this point, explaining that in high-humidity environments (like Florida), more energy goes toward removing moisture (latent heat) rather than cooling the air (sensible heat), resulting in lower Delta T readings. This is why a newly repaired unit in a humid house might initially show lower readings but improve as the home dries out. The discussion highlights why the common “20-degree Delta T” rule of thumb isn’t universally applicable and requires context.

Key Topics Covered:

Definition of Delta T: Temperature difference between two points of the same medium
Difference between Delta T and TD (temperature difference)
Proper probe placement for accurate Delta T readings
Impact of humidity on Delta T measurements
How regional differences affect expected Delta T values
Relationship between CFM (airflow) per ton and Delta T readings
Common mistakes: Adjusting equipment based solely on Delta T readings
Challenges of applying Delta T in heat pump heating mode
How temperature dead spots can affect readings
Why Delta T readings must be considered alongside other diagnostic tests
The danger of making unnecessary adjustments to HVAC systems
Why high Delta T isn’t always good and low Delta T isn’t always bad

JD’s Delta T tech tip: https://hvacrschool.com/solving-delta-t/

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium.

Subscribe to our podcast on your iPhone or Android.

Subscribe to our YouTube channel.

Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android

Delta T Talk w/ JD Kelly

Search Episodes

Delta T Talk w/ JD Kelly

05/08/2025

Bryan Orr

Fire Sprinklers – Short #239

05/06/2025

Bryan Orr

The PATH to High Performance HVAC w/ David Richardson

05/01/2025

Bryan Orr

Estimating Tips and Software

04/30/2025

Bryan Orr

Nylog, Oil? Where does it go? – Short #238

04/29/2025

Bryan Orr

Growing your HVAC Business the Smart Way w/ Copeland

04/24/2025

Bryan Orr

Oversized Evap Coils? – Short #237

04/22/2025

Bryan Orr

ERVs – What you need to know w/ Dr. Bailes

04/17/2025

Bryan Orr

Multiple Surge Protectors – Short #236

04/15/2025

Bryan Orr

The Cornerstones of Inverter Equipment Commissioning

04/10/2025

Bryan Orr

Search Results placeholder

Check our latest Tech Tips

What Should My Superheat Be? This is Not a Soft Start 3 Ways to Reduce Compression Ratio in a Heat Pump

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER
Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. The proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil.

Viper Condensate Pan and Drain Treatment

Viper Condensate Pan and Drain Treatment
Viper Condensate Pan and Drain Treatment is a sprayable gel. It coats the pan, p-trap and drain piping with a lubricative film to improve flow and prevent future soil adhesion. The slow dissolving enzyme gel will outperform and outlast conventional tablets and strips.

Nylog Blue Gasket -Thread Sealant for AC/R Systems

Nylog Blue Gasket -Thread Sealant for AC/R Systems
One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Derived from refrigeration grade lubricants. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Typically, one drop of Nylog can be stretched about three feet before breaking.

NAVAC

Find out more about the Innovative NAVAC line of Vacuum Pumps

NAVAC

FROM AUGUST 2024 TO MARCH 2025 BUY NAVAC TOOLS FOR A CHANCE TO WIN A MOTORCYCLE! Any purchase of NAVAC HVAC Tools is eligible to gain entries for a Grand Prize of a Harley Davidson motorcycle.

loading

To continue you need to agree to our terms.

Terms and Conditions

The HVAC School site, podcast and tech tips
made possible by generous support from

Interested in a HVAC Career?

Find A local trade school

Resources

Calculators
Tool list
Apps
Great Books
Software and Business
Other Resources we like
Unconformed

Content

Start
Podcasts
Videos
Social Media
Tech Tips
Quizzes
Courses

Events

6th Annual HVAC/R Training Symposium
Upcoming Events
Create an Event
Event Partnership

Jobs

Job Posts
Create a Job Post

Partners

Partners
Carrier
Copeland (Emerson)
Fieldpiece
NAVAC
Refrigeration Technologies
Santa Fe

Get Tech Tips

Subscribe to free tech tips

Email Address

First Name

Terms and conditions & Privacy Policy
EULA
Reuse License

©2025 - HVAC School | All rights reserved

Loading Comments...

Write a Comment...

Email

Name

Website