Kevan Mayer's guest appearances

Kevan Mayer

HVAC School - For Techs, By Techs

HVAC Know It All Podcast

Andrew Greaves

Trevor Matthews

Chris Stephens

Mark Crabtree

Mike Walton

Ben Thomson

Rocky Hyatt

Mike Flynn

Mike Clark

Chris Carlsen

Ariel Bertin

Ian McTeer

Jake Anzaldua

Mike Mayberry

Brian Dail

OwlTail

Kevan hops on the podcast to talk Navac products in an educational way. We talk recovery machines, vacuum pumps and evacuation procedures, smart charging and powered flaring.  All tools discussed are available at trutechtools.com.  Use promo code knowitall to save 8% on your purchase.  Testo 300  https://www.testo.com/en-US/products/testo300  Yellow Jacket Temperature Strap https://yellowjacket.com/product/adjustable-temperature-probe-strap/  XOi Technologies  http://www.xoi.io/hvac-know-it-all-demo/

Kevan hops on the podcast to talk Navac products in an educational way. We talk recovery machines, vacuum pumps and evacuation procedures, smart charging and powered flaring. All tools discussed are available at <a href="http://trutechtools.com" rel="nofollow" target="_blank">trutechtools.com</a>. Use promo code knowitall to save 8% on your purchase. Testo 300 <a href="https://www.testo.com/en-US/products/testo300" rel="nofollow" target="_blank">https://www.testo.com/en-US/products/testo300</a> Yellow Jacket Temperature Strap <a href="https://yellowjacket.com/product/adjustable-temperature-probe-strap/" rel="nofollow" target="_blank">https://yellowjacket.com/product/adjustable-temperature-probe-strap/</a> XOi Technologies <a href="http://www.xoi.io/hvac-know-it-all-demo/" rel="nofollow" target="_blank">http://www.xoi.io/hvac-know-it-all-demo/</a>

Navac HVAC Tool Education w/Kevan Mayer

How does a vacuum pump work? When should you change the oil? What does that oil do anyway? Kevan Mayer of NAVAC comes on the podcast to answer these questions and more in this episode. Vacuum pumps help remove moisture and non-condensables from the system. Moisture can freeze at temperature drops in the system, and it can block refrigerant flow to the system. Moisture can also combine with POE oil to become acidic, which causes burnouts. A vacuum pump uses an impeller to bring a system under negative pressure. Many of these pumps are two-stage pumps, meaning that they have multiple chambers that push the contaminants through the pump before they get discharged into the atmosphere. As with other tools, it is a good idea to confirm your vacuum pump's operation regularly to make sure you can use it effectively. Vacuum pump oil is a type of highly refined mineral oil and should be clear. It is hygroscopic and attracts moisture, like POE oil, so you need to take care to avoid contamination. This oil both lubricates the vacuum pump and absorbs incoming moisture from the system. It's a good idea to replace your vacuum pump oil every job when you have a small pump; you may even need to change it multiple times per job. Larger pumps will typically handle a few jobs before you need to change the oil. In any case, change the oil if it starts looking amber or milky. Kevan and Bryan also discuss:  Gas ballast valves Vacuum gauges and micron gauges Changing gaskets in hoses Proper oil disposal Vacuum pump size Vacuum pumps with solenoids NAVAC pumps and features Dedicated vacuum hoses Standing vacuum tests Check out NAVAC at navacglobal.com, or look for their products at trutechtools.com. Learn more about Refrigeration Technologies HERE. If you have an iPhone, subscribe to the podcast HERE, and if you have an Android phone, subscribe HERE.

How does a vacuum pump work? When should you change the oil? What does that oil do anyway? Kevan Mayer of NAVAC comes on the podcast to answer these questions and more in this episode. Vacuum pumps help remove moisture and non-condensables from the system. Moisture can freeze at temperature drops in the system, and it can block refrigerant flow to the system. Moisture can also combine with POE oil to become acidic, which causes burnouts. A vacuum pump uses an impeller to bring a system under negative pressure. Many of these pumps are two-stage pumps, meaning that they have multiple chambers that push the contaminants through the pump before they get discharged into the atmosphere. As with other tools, it is a good idea to confirm your vacuum pump's operation regularly to make sure you can use it effectively. Vacuum pump oil is a type of highly refined mineral oil and should be clear. It is hygroscopic and attracts moisture, like POE oil, so you need to take care to avoid contamination. This oil both lubricates the vacuum pump and absorbs incoming moisture from the system. It's a good idea to replace your vacuum pump oil every job when you have a small pump; you may even need to change it multiple times per job. Larger pumps will typically handle a few jobs before you need to change the oil. In any case, change the oil if it starts looking amber or milky. Kevan and Bryan also discuss: <ul> <li>Gas ballast valves</li> <li>Vacuum gauges and micron gauges</li> <li>Changing gaskets in hoses</li> <li>Proper oil disposal</li> <li>Vacuum pump size</li> <li>Vacuum pumps with solenoids</li> <li>NAVAC pumps and features</li> <li>Dedicated vacuum hoses</li> <li>Standing vacuum tests</li> </ul>Check out NAVAC at <a href="https://navacglobal.com/" rel="nofollow" target="_blank">navacglobal.com</a>, or look for their products at <a href="http://trutechtools.com" rel="nofollow" target="_blank">trutechtools.com</a>. Learn more about Refrigeration Technologies <a href="https://www.refrigtech.com/" rel="nofollow" target="_blank">HERE</a>. If you have an iPhone, subscribe to the podcast <a href="https://itunes.apple.com/us/podcast/hvac-school-for-techs-by-techs/id1155660740?mt=2" rel="noopener nofollow" target="_blank">HERE</a>, and if you have an Android phone, subscribe <a href="https://www.stitcher.com/podcast/bryan-orr-3/hvac-school" rel="noopener nofollow" target="_blank">HERE</a>.

Vacuum Pump Basics w/ Kevan Mayer