Modulating Compressors w/ Copeland

HVAC School - For Techs, By Techs

Bryan Orr

Training, Careers, Airconditioning, Self-improvement, Hvac, Business, Education, Refrigeration, Heating, Ac, Apprenticeship

4.8 • 985 Ratings

🗓️ 15 August 2024

⏱️ 50 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

In this episode, Josh Souders from Copeland joins the HVAC School Podcast to discuss modulating and variable capacity technologies in HVAC systems. Josh provides an in-depth look at the different levels of modulation available in residential HVAC equipment, from traditional fixed-speed systems to two-stage, multi-stage, and true variable-speed compressors.

The conversation covers the benefits of modulating systems, including improved energy efficiency, better comfort, and enhanced humidity control. Josh explains how modulating technologies allow systems to more closely match the actual cooling or heating load of a building, reducing temperature swings and providing more consistent comfort. He also discusses how longer run times with modulating systems can improve dehumidification performance in humid climates.

The interview delves into the technical details of how different modulating technologies work, from two-stage scroll compressors with solenoid valves to inverter-driven variable speed compressors. Josh highlights some of the challenges and considerations when implementing modulating systems, including proper sizing, airflow matching, and control strategies. The discussion also touches on cold climate heat pumps and how variable speed technology enables better performance in colder temperatures.

Key topics covered:

Types of modulating HVAC technologies: fixed-speed, two-stage, multi-stage, variable-speed
Benefits of modulation: energy efficiency, comfort, humidity control
Technical details of how modulating compressors work
Importance of proper system sizing and airflow matching
Cold climate heat pump applications
Energy efficiency ratings and standards (SEER, EER, HSPF)
Federal and local incentives for high-efficiency HVAC systems
Upcoming refrigerant transitions to A2L refrigerants
Industry trends towards increased adoption of modulating technologies

Arm yourself with knowledge from AC & Heating Connect by Copeland at https://www.ac-heatingconnect.com/.

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Transcript

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0:00.0	This episode of the HVAC School Podcast is brought to you by our trusted sponsors,
0:10.0	the ESCO Institute with over 200 HVACR training solutions courses, webinars, and simulators, find
0:17.0	out more by going to ESCOgroup.org.
0:20.5	Field Piece in the SR-S-R-47 Wireless Refrigerant Charging Scale.
0:26.0	At only 7 pounds, it still rains as the heavyweight champion of Refrigerant Scales.
0:32.0	The Field Piece SR 47.
0:35.0	Refrigeration Technologies at Refrigeratex.
0:38.0	Talked a lot about Viperventon Packs over the last several years.
0:41.0	And we love them. We use them here at Kalo Services.
0:43.4	It comes in four varieties I used to say four flavors but I don't want to give you the
0:47.6	wrong idea. I mean they are food safe but that doesn't mean you should be
0:50.3	eating them. The evaporator which is comparable to the Evap Plus and the gallon
0:55.0	jug, the condenser, which is comparable to the HD, and the brightener, which is compared
1:00.8	to bright, and then good old all-purpose, which is compared to nothing. and then good old All Purpose, which is compared to nothing.
1:04.3	It's just really good stuff.
1:05.7	Great for door seals, refrigerated cases, that kind of thing.
1:08.3	So evaporator, condenser, brightener, and All Purpose, Food Safe, so you can work around grocery refrigeration or food
1:15.5	service environments and these things are really impact resistant I took one and
1:19.2	threw it up in the air and land in the parking lot and it didn't break try that
1:22.2	with a gallon jug.
1:23.0	That was a really nice spout, easy to fill, either a pump sprayer or even a spray bottle.
1:29.0	Just add water, make sure to use the right dilution ratio.
	...

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