Start
Here is where your journey into HVAC nerdiness may start. Check out our latest videos, tech tips, and podcasts all in one place.
February 19, 2025
Inverter Driven Install Considerations Part 2
In Part 2 of Inverter Driven Install Considerations (Part 15 of the Polar Bear AC Series), Bryan Orr and Jordan Cummings dive deep into key aspects of VRF/VRV systems. The discussion covers various indoor unit options beyond standard wall mounts, including cassettes, slim ducted units, and floor-mounted options. Bryan explains the advantages of 4-way cassettes, built-in condensate pumps, and installation considerations.
Get Tech Tips
Subscribe to free tech tips.
Follow Us On Social Media And Podcast Platforms
Download HVAC School App
Check our latest Tech Tips
Check our latest Tech Tips
Low pressures are often measured in inches of water column or “WC. Like most units of measure, it has a very simple origin; in a water manometer, 1″ of water column is literally the amount of force it takes to raise the column of water by 1”. While some water manometers (water tubes) are still […]
Read more
As HVAC/R techs, we don't generally do a lot of soldering—unless you are in a shop that has embraced Stay Brite® 8 from Harris. Several aluminum repair products on the market also use an indirect soldering type technique, so this is a general and generic overview of some best practices. As always, follow the manufacturer's […]
Read more
There are many examples of teaching using metaphors to help someone grasp how something works without being EXACTLY correct. Some examples are how we often use water flow to explain electrical flow or refrigerant circuit dynamics. It's enough like the way it works to get our heads wrapped around it, but there are many differences. […]
Read moreOur Most Popular Videos
