Vacuum Pump
NR7 Recovery Unit
No. Model Description No. Model Description
1 NP2DLM BreakFree Cordless Vacuum Pump, 2CFM 8 NR7 Recovery Unit
2 NP4DLM BreakFree Cordless Vacuum Pump, 4CFM 9 NH5L Left-handed Thread Hose
3 NP7DP2 & NP7DPF Vacuum Pump, 7CFM 10 NMG12/13A Pro Manifold Gauge, 5 Hoses
4 NRP6Di & NRP8Di Smart Vacuum Pump, Master Series 11 N2A4B/C Pro Plus Manifold Gauge, 5 Hoses
5 NP12DM Vacuum Pump, Industrial Grade, Master Series 12 N2D4H Manifold Gauge with Digital Display, 5 Hoses
6 NRDD & NRDDF Digital DC Recovery Unit 13 N2D72 Flex 72 Manifold Gauge w/ Digital Display, 5 Hoses
7 NRDC4M 4-Cylinder Recovery Unit 14 NX1, NX1v Nexus Digital Manifold Gauge, 5 Hoses
No. Model Description
1 NP2DLM BreakFree Cordless Vacuum Pump, 2CFM
2 NP4DLM BreakFree Cordless Vacuum Pump, 4CFM
3 NP7DP2 Vacuum Pump, 7CFM
4 NRP6Di & NRP8Di Smart Vacuum Pump, Master Series
5 NP12DM Vacuum Pump, Industrial Grade, Master Series
6 NRDD & NRDDF Digital DC Recovery Unit
7 NRDC4M 4-Cylinder Recovery Unit
8 N2A4B Manifold Gauge
9 N2D4H Manifold Gauge with Digital Display, 5 Hoses
10 NKS1 Advanced Mini-Split Tool Kit

HVACR Equipment Rated for Use with A2L Refrigerants

ASHRAE Standard 34 designates every refrigerant with a letter (A or B) and number (1, 2/2L, 3) to classify its toxicity and flammability. The letter represents the refrigerant’s toxicity, with “A” representing low toxicity and “B” for high. The number refers to the refrigerant’s flammability. A Class 1 refrigerant is a refrigerant with little to no flame propagation and a low risk of igniting under normal circumstances. Class 3 refrigerants indicate our most flammable refrigerants. ASHRAE recently added the subclass of 2L to represent Class 2 refrigerants that are significantly slower to ignite or burn than other Class 2 gases. When a substance is exposed to spark or flame, many people assume it will behave like water or gasoline. In reality, there’s huge grey area in between. It’s in this grey area that we find A2L refrigerants. They’re much less flammable, but can certainly ignite if several factors align at the same time.

Flammability & Toxicity Table

There is an inverse relationship between Global Warming Potential (GWP) and flammability. As the GWP goes down to acceptable levels, the flammability increases. Today for the residential and light commercial split or unitary markets, the GWP target is 750. The widely used R410A (A1 class) has a GWP of 2088, while R32 (A2L class) has a GWP of 675. Recent data shows that replacing R410A with R32 can help us avoid ~0.9°F of global warming by 2100. That’s why we see an impending phasedown of HFCs, including R410A, and the inclusion of R32 or other A2L refrigerants in future equipment. EPA approved A2L refrigerants will bring us closest to being in line with the new GWP targets while having the least overall impact on installation, service and maintenance practices.

R32 and any flammable refrigerants CANNOT be used in any R22 or R410A refrigerant retrofit applications. If we look at the equipment coming off the assembly lines manufacturing A2L equipment, they are being designed at the factory to have the components already on board that mitigate the risks of A2L refrigerants, which we call “intrinsically safe”. For A2L equipment best practices, always consult the manufacturers’ literature before and during an installation for precise standards, requirements and considerations. Always use tools that are rated for use with A2L refrigerants.

NAVAC, the world’s largest supplier of HVAC vacuum pumps in addition to a wide array of tools, gauges, charging machines, recovery units, and other industry-specific items, is one of the first manufacturers who offer a full line of A2L compatible tools.

Relevant podcasts/videos:

A2L Tools with NAVAC! by Trade Pros Podcast
We spoke with Jesse Stewart (Navac) and Luke Wrone (Cardinal University) about the upcoming HVAC refrigerant change to A2L’s and the tool needed!

Tools and the A2L Transition by Accelerated HVAC Success
Brad Adcox, NAVAC National Sales Manager joining Ben Middleton, National Sales Training Manager at Daikin Comfort Technologies to discuss essential considerations when selecting tools for the A2L refrigerant transition at Accelerated HVAC Success Podcast. Tune in to learn more

New Refrigerants May Require New Tools🔦🔧 with @NAVAC by ESCO Institute-HVAC Excellence
On this episode of “Did You Know” we spend time with Ty Branaman and Jesse Stewart, NAVAC National Training Manager, exploring new tools and tool requirements for working with these next generation refrigerants. Make sure to join us for a LIVE broadcast from their facility in Versailles, Kentucky. It’s ROADSHOW time!!

What makes an HVACR tool A2L compliant?

Sparkless Design

DC Brushless Motor

Soft Contact Power Switches

Covered Connections for All Electrical Terminations

Inclusion of a Fan