Logo

Heat Pump Training for Engineers and Energy Auditors - Shared screen with speaker view
Lauren Mattison
27:02
Slides available at http://ceere.org/heatpumpsforengineersandenergyauditors-may2022.pdf
Lauren Mattison
30:37
If you need a heat pump intro session, see recording athttp://ceere.org/heatpumptrainingrecordingMarch2022.htmlToday's slides are available at http://ceere.org/heatpumpsforengineersandenergyauditors-may2022.pdf
Molly Keleher
33:39
hello - is it possible for the zoom meeting host to enable captions?
Lauren Mattison
35:44
Yes Molly, I enabled automatic captioning
Molly Keleher
36:55
it's working - thank you!
Lauren Mattison
37:31
I see a hand raised. If you have a question about the content please type it in the Q&A or if you have other issues you can use the chat.
Gregory Krantz
43:25
Would you explain what you mean by inverter driven heat pumps? Does this mean AC to DC, or 1-phase AC to DC to 3-phase AC?
Mike Ragan
47:33
The inverter compressor uses a drive to control the compressor motor speed to modulate capacity. This differs from traditional single-speed or two-stage compressors which are locked in to a specific number of speeds. This increases efficiency by delivering only the required compressor capacity needed by the building, and tightens the "deadband" or the range of temperatures indoor occupants experience.
Gregory Krantz
49:11
thx
Mike Ragan
49:46
To keep everything organized, let's try to keep Q&A in the separate Q&A chat window. Thank you!
Ben Carney
01:14:46
I've got a meeting at 2pm, will it be possible for me to get a copy of this seminar to watch at a later date? This is all very useful info that I would like to reference.
Lauren Mattison
01:15:26
Yes I will send the recording to all who registered
Ben Carney
01:15:44
Thank you
Reddy Tupakula
01:23:15
Are air to water HPs same as WSHPs?
Lauren Mattison
01:24:08
If you have questions, please click on the Q&A button and type them there, rather than in the chat.
Reddy Tupakula
01:24:34
Ok Thanks
Mike Ragan
01:25:43
Hi Reddy - not quite. Air-to-water HPs are simply heat pumps with the "indoor unit fan coil" transferring heat from the VRF system to the water flowing through that unit. A WSHP extracts/rejects heat from a condenser water loop that runs through each unit. The "air" in "air to water" refers to the fact that we are moving heat between the air and the water source (hydronic distribution loop, etc.)
Lauren Mattison
01:27:42
See our intro session for more information on that:http://ceere.org/heatpumptrainingrecordingMarch2022.html
Reddy Tupakula
01:46:00
Thanks Mike
Reddy Tupakula
02:19:16
can you size the wastewater heat recovery for 24/7 heating and cooling?
Lauren Mattison
02:20:31
please put questions in the Q&A, not here in the chat
Bryan Urquhart
02:36:51
That was a ton of info! Thank you for the content. I will look forward to seeing the presentation again.