Ductless Installation P1 - Application and Drains

HVAC School - For Techs, By Techs

Bryan Orr

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

4.8 • 985 Ratings

🗓️ 30 March 2017

⏱️ 41 minutes

🔗️ Recording | iTunes | RSS

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Summary

Bryan and Jesse talk in detail about ductless applications we commonly see, best system placement, drains, and much more.

Ductless systems are unique, and their compact nature makes them a good choice for several small, controlled applications. These applications are in climate-controlled garages, lanais (sunrooms), and master bedrooms. In Florida, lanais are the primary application for ductless units, especially due to codes that regulate HVAC systems in lanais.

When installing a ductless unit, Jesse looks for aesthetics and reliability. Since ductless units are visible, making them look good inside the home is a concern that you don't typically worry about on split systems. When it comes to the drain line, Jesse likes using gravity drains on exterior walls. Many callbacks deal with drainage issues, so drains can reduce ductless units' reliability. Condensate pumps also occasionally have issues, so Jesse puts the pump in a way where all connection points are below the ceiling to avoid ceiling damage. However, float switches and overflow devices may also be required by code and may help.

Transcript

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0:00.0	This episode of the HVAC School Podcast and HVACR School
0:06.8	is made possible by generous support from both carrier and testo.
0:12.1	Thank you to carrier and testo for partnering with the people who
0:14.9	train and the people who do the work every day in the HVAC industry. I never said I don't flow nitrogen. I don't flow nitrogen.
0:28.0	I never said I don't flow nitrogen.
0:30.0	Nobody flows more nitrogen than I do.
0:32.0	I flow the most nitrogen of anyone. So much
0:36.2	nitrogen, believe me. Yes, yes, this is the HVAC school podcast and I am Brian.
0:41.6	Thank you for being here today. I just got back today from the the me and I got to spend some time with some of the nation's best educators in the
0:55.0	HVAC field and what I was struck by for those of you who work in the field you
0:59.4	probably don't talk to a lot of HVAC educators. What I was struck by is how down to earth these people are, how most of these people
1:07.1	came out of the trade, doing installations or service, and eventually got to the point that they wanted to do some education.
1:14.0	For some reason I always thought that the bulk of H.V.
1:17.0	E. H.A.C. educators would be, you know, academics.
1:19.0	And of course, I'm sure there are some of those.
1:22.0	But I was really just impressed by how most of them really were technicians and they kind of had
1:25.8	a technician mindset still. So I had some really great conversations. But the one thing that came
1:30.0	out of the HVC Excellence Convention conference,
1:35.0	or whatever you want to call it,
1:36.0	that I was just at, is that Duckless is an area
1:38.5	that really needs a lot more training.
1:40.1	And so I'm going to do a lot more Duckless training.
	...

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