In the world of HVACR, the SMAN® isn’t just a tool—it’s a name that techs often interchange for a digital manifold – like Xerox™ for copying or Kleenex® for tissues. But not all digital manifolds are SMANs, the toughest, most advanced digital refrigerant manifold on the market, packed with knowledge gathered from years of experience. The new SMAN SM482V (4-port) and SMAN SM382V (3-port) digital refrigerant manifolds continue the legacy, with upgrades that enhance these best-in-class diagnostic instruments.

What’s New

An eagle eye is required to spot the changes of the new SM482V/SM382V digital manifold since the large, 5-inch backlit digital display is unchanged, but key improvements include:

• It’s smaller and lighter. Plus, it can transform into an even smaller profile if the temperature clamps are stored separately. The clamp mounts or “ears” can be replaced with flat caps, available in an optional accessory kit.
• It’s even MORE rugged. An IP55 dust and water resistance rating, impact-resistant housing, reinforced steel hook, and protected thermocouple jacks ensure they’re built for the tough jobs.
• It comes with a new, easy-open case. The soft case protects the manifold in your service vehicle and the top folds back from the display for in-field use.
• It has field-replaceable components. Valves and knobs can be rebuilt as needed. The standard 1/4” hose seats can be replaced with 5/16” fittings. And if a clamp ear breaks off, cue Van Gogh jokes, it can be easily replaced.

What’s the Same

• Accurate system measurements, calculations and diagnostics
• Integral vacuum gauge
• Temperature compensated pressure test
• Data logging for up to 168 continuous hours
• Support for over 70 refrigerants including A2Ls
• Field-calibrated pressure and temperature sensors
• Central data hub for Job Link® wireless tools and connects to the Job Link app

From refrigerant charging to system troubleshooting, the SMAN has been the trusted name in HVACR diagnostics for years. The SM482V and SM382V build upon the strengths of their predecessors while introducing key improvements to once again raise the bar – offering HVACR pros the accuracy and reliability they need to get the job done right every time.

Learn more about the SMAN today and pick one up at your local Fieldpiece distributor!

2025 ushers in a new phase of the transition to A2L refrigerants for the HVACR industry. In case you missed it, the big change is a transition to A2L refrigerants with a low global warming potential (GWP) and phase down in production of hydrofluorocarbon (HFC) refrigerants with a high GWP. This change in refrigerant production, the new HVACR equipment required and resulting new regulations are being mandated by the EPA in execution of the AIM Act. Exactly how and when these new regulations impact you will vary based on the type of systems you install and service.

HFC Equipment Availability
As of December 31, 2024, manufacturers can no longer produce R-410A split systems, marking a major milestone in the HFC phase-down. In one year, December 31, 2025, will be the last day to install these systems. If you are doing a new installation of a residential or light commercial system you will need to plan accordingly.

For refrigeration professionals, the timelines differ slightly:

• Self-contained refrigeration units: Sales are allowed until January 1, 2028.
• Cold storage warehouses or supermarket refrigeration: Full system installations with HFC refrigerants will be prohibited starting Jan 1, 2026 and Jan 1, 2027, respectively.

The technology transition for variable refrigerant flow systems is moving on a slower schedule. There may be some relief from current implementation dates, but the EPA has not yet communicated those dates.

A2L Equipment & Install Changes
The transition to A2L refrigerants introduces important design and installation considerations:

• Due to A2L refrigerants’ mildly flammable nature, systems must include leak mitigation strategies such as automatic leak detection, shutdown mechanisms and blower fans to dissipate the refrigerant.
• A2L line sets will also require “Risk of Fire” labels and comply with local building codes. Consult your local building officials to understand all the new code requirements for A2L system installations to ensure compliance.
• Gray A2L cylinders have a red band or stripe to indicate the presence of the mildly flammable refrigerant. These cylinders require reverse-thread adapters, like the Fieldpiece A2L adapter extension, to differentiate them from HFC threads.

Recover, Recycle, Reclaim
Under the AIM act, the EPA outlines its goals to bolster the supply of HFC refrigerants in the United States by supporting recycling and reclamation, and mandating leak repair provisions for certain appliances. By 2028, the EPA is requiring reclaimed refrigerant be used for servicing existing equipment in addition to initial charges in certain systems for HVACR and heat pump equipment. This means that there is a need to recover and return HFC refrigerants to distribution. If you can reclaim and not mix refrigerants, you may receive money as well.

Documentation
Proper record-keeping remains essential when disposing of refrigerants. Ensure you log the following:

• Recovery location and date
• Type of refrigerant recovered
• Monthly totals of refrigerants recovered and sent for reclamation

For appliances containing 50+ pounds of HFC refrigerants, technicians must provide documentation of the amount added and any inspections performed to the equipment owner.

Stay Ahead of the A2L Transition
As everyone in the industry transitions to this new landscape, Fieldpiece is doing everything to ensure its tools are ready for the transition. Visit fieldpiece.com to see all the tools that are A2L-compatible. Fieldpiece will continue to support you every step of the way – helping you work easier, faster and better.

Why is it important to calibrate your combustion analyzer?

Calibration of your combustion analyzer is crucial to ensure accurate readings and ultimately, safe heating appliance operation. Combustion analyzers measure critical parameters like oxygen (O₂), carbon monoxide (CO), and combustion efficiency to help HVAC pros assess the performance of heating systems. Over time, sensors can drift due to exposure to gases, dust, and other contaminants, which can lead to inaccurate readings.

Without proper calibration, an analyzer might give false readings that could either falsely indicate that a system is operating within safe limits or fail to detect hazardous levels of CO. Inaccurate readings could also result in suboptimal efficiency adjustments, increased energy costs for customers or even cause equipment damage. In some extreme cases, incorrect calibration can lead to serious safety risks, including carbon monoxide poisoning. This is why regular calibration is not just a good idea—it’s essential.

Is combustion analyzer calibration mandated in certain regions?

Yes, in some cases, local jurisdictions have their own requirements for calibration frequency and documentation to comply with safety codes and emission standards. These rules can vary by country, state, or even municipality, and some locations may require proof of calibration to ensure that analyzers are providing accurate data, especially when used in industrial or commercial settings.

For example, certain safety authorities and organizations, like the Environmental Protection Agency (EPA) in the U.S. or other local building code authorities, may mandate that all combustion analyzers be calibrated annually and used in their certified state. It’s a good idea to check with your local HVAC or safety authority to determine what specific calibration requirements apply in your region.

How often do you need to calibrate your combustion analyzer?

The general recommendation is to calibrate your combustion analyzer annually, though some manufacturers might recommend more frequent calibration depending on use. Heavy usage in harsh environments, or frequent exposure to high concentrations of gases, may require more frequent calibration to maintain accuracy.

Annual calibration helps to ensure that the sensors remain accurate and that any drift in the readings is corrected. Fieldpiece combustion analyzers, like the CAT45 and CAT85, are equipped with long-life sensors, backed by a 4-year warranty, but you will still need to comply with regional calibration frequency requirements.

Does field-swapping the sensors mean it’s calibrated?

The answer to this will depend on the product manufacturer. In some cases, new sensors may need to be 3^rd party calibrated to ensure they align with the analyzer’s electronics and software. However, the Fieldpiece CAT45 and CAT85 field-replaceable sensors are plug-and-play, sealed and pre-calibrated for the device. If you don’t need a 3^rd party calibration certificate, replacing the sensors may be the fastest solution, but not the most economical.

Where can I get my Fieldpiece CAT45/CAT85 calibrated?

If you’re using a Fieldpiece CAT45 or CAT85 combustion analyzer, the best option is to send your analyzer to a Fieldpiece-authorized calibration center. Fieldpiece partners with certified facilities that are equipped to calibrate your analyzer according to factory standards. Centers will calibrate the O₂ sensor, the CO sensor, verify temperature measurements, update firmware if required and provide a certificate of calibration. You can locate authorized calibration centers through the Fieldpiece website or by contacting customer support (714-634-1844).

Regular calibration of your combustion analyzer is key to maintaining safety, accuracy, and efficiency when installing and servicing combustion heating appliances. By following the manufacturer’s guidelines and getting your analyzer calibrated annually, you’ll ensure reliable readings and avoid potential hazards. Whether you’re using the CAT45 or CAT85, keep your tools up to standard by using authorized services to maintain peak performance year-round!

Fieldpiece is dedicated exclusively to creating tools for HVACR professionals. Our bedrock was built on the innovation of the stick meter, which has since evolved into a full portfolio of electrical meters—a true reflection of our unwavering commitment to the industry.

The Birth of Fieldpiece: Innovation Rooted in Experience

Fieldpiece’s journey began with a vision that transformed the industry. In 1990, Fieldpiece Founder Rey Harju, was inspired to create a tool to revolutionize how HVACR technicians performed their jobs. Rey envisioned a stick meter with detachable heads that could be swapped out based on the measurements required. There was nothing like it on the market, and Rey knew that this single, versatile tool could simplify and enhance the diagnostic process for techs in the field.

After three years of testing, development and refinement in his garage, the HS24 stick meter was born. This innovative tool wasn’t just another meter – it was a game-changer. Today, Fieldpiece has continued to push the boundaries of what’s possible, introducing industry-defining products like the SMAN® Digital Manifold and the wireless Job Link® System probes, each designed to make HVACR work more efficient and effective.

Designed Specifically for HVACR Technicians

Every HVACR technician faces a unique set of challenges, whether working on a rooftop in sweltering heat or diagnosing issues in a cramped mechanical room, techs have it tough enough. That’s why Fieldpiece electrical meters are built with the features and flexibility needed to tackle any situation.

• SC680 Swivel Clamp Meter: If you’re looking for a meter that does it all, the SC680 is your go-to tool. It’s packed with features, including real-time power readings, temperature measurements up to 1000°F, and Molex tip leads for small power connectors. The SC680 also filters out noise from Variable Frequency Drives (VFDs), ensuring accurate readings even on complex systems. Job Link® System connected, you can leave the meter behind a closed blower door and view the current measurement on your mobile device.

• SC260 Compact Clamp Meter: Need something smaller for tight spaces or as a reliable backup? The SC260 is small but mighty, with features like capacitance testing for motor start and run capacitors, non-contact voltage detection and a strong, swivel magnet for hands-free operation. It’s perfect for technicians who need a meter that’s both versatile and easy to carry.

• HS36 Stick Multimeter: For those who prefer stick meters, the HS36 offers everything you need in a pocket-sized package. It includes True RMS, microamps for flame diode testing and the ability to work with all Fieldpiece accessory heads. The built-in magnetic hanger and rugged design make it a durable, reliable tool for any job.

• LT17A Digital Multimeter: A classic that never goes out of style, the LT17A covers all the basics with added features like temperature measurement up to 1400°F, capacitance testing and compatibility with Fieldpiece accessory heads. It’s the perfect combination of reliability and value.

More Than Just Meters: A Commitment to Ongoing Innovation

At Fieldpiece, we understand that the HVACR industry is constantly evolving and the needs of HVACR professionals along with it. That’s why we’re committed to continuous innovation and our meters are a testament to this philosophy. And while our meters define an industry, we’re not stopping there. We’re always working on new features, accessories and software to ensure you have the best tools to get the job done right.

From our humble beginnings in Rey’s garage to becoming a leader in HVACR tools, Fieldpiece remains dedicated to one mission: providing HVACR professionals with the most advanced, reliable and user-friendly tools on the market. Whether you’re just starting in the industry or are a seasoned pro, Fieldpiece has the meters you need to succeed.

Explore our full range of meters and see how Fieldpiece can take your work to the next level. For more information, visit Fieldpiece Electrical Meters.