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Where Surplus Comes From: CO2 and Low Charge Ammonia Conversions Are Feeding the Secondary Market

Mycom N6WB compressor with 100 HP ammonia compressor

QUICK ANSWER

ATMOsphere reported in May 2026 that North American transcritical CO2 installations reached 6,360 supermarket and industrial sites in 2025, a 28 percent year over year increase representing 1,390 new systems. Industrial transcritical CO2 grew 42 percent year over year to roughly 1,240 facilities, a 2.5 times increase since 2023. Roughly 1,480 low charge ammonia systems are also in service across North America.

Every one of those conversions decommissions an existing plant. Because conversions are planned capital projects rather than failures, the equipment coming out is generally running when it is pulled, which is why plant conversion packages are among the better sources of used industrial refrigeration equipment available.

The conversion numbers

ATMOsphere published its natural refrigerant market data in May 2026. The North American picture: [1]

  • 6,360 supermarket and industrial sites using R744 in 2025, up 28 percent year over year, representing 1,390 new systems added between 2024 and 2025.
  • 5,120 supermarkets and grocery stores on transcritical CO2, roughly 6 percent of the approximately 85,110 stores across the US and Canada.
  • Approximately 1,240 industrial facilities on transcritical CO2, up 42 percent year over year and 2.5 times the 2023 figure.
  • Roughly 1,480 low charge ammonia systems and about 5.1 million self contained hydrocarbon cabinets in service.

The industrial growth rate is the number worth sitting with. Forty two percent year over year in industrial transcritical CO2 means the conversions are no longer concentrated in retail food. They are happening in the plants that run the equipment this market trades in.

Why conversion equipment is different from distressed equipment

There is a meaningful distinction between the two main sources of used industrial refrigeration equipment, and it changes what you should expect on the receiving dock.

Distressed equipment comes out of a plant that stopped. A bankruptcy, a line shutdown, a facility that ran to failure. The equipment may be fine, but it was often sitting before it was pulled, maintenance may have tapered in the final period, and documentation is frequently incomplete because the people who kept it are gone.

Conversion equipment comes out of a plant that is still operating. A cold storage operator moving to CO2 or low charge ammonia is executing a capital project, usually with a funded budget, an engineering firm involved, and a commissioning schedule for the replacement. The outgoing machines are typically running the week they are disconnected, and the maintenance records exist because the plant needed them right up to cutover.

That is a quality argument you can verify. Ask which of the two situations the package came from, and ask for the maintenance history and the run hours. On a conversion package, both should be available.

What carries over and what does not

When a plant converts, not everything that comes out is worth the same to the next buyer. The dividing line is generally how refrigerant specific the component is.

Usually transfers well

  • Motors and starters. Electrically agnostic, long service life, and frequently the item with the worst new equipment lead time relative to cost.
  • Control panels and switchgear, subject to the caveat below on controls integration.
  • Condensers and cooling towers. Evaporative condensers in particular hold value well when the coil and basin are sound.
  • Vessels, liquid receivers, and separators, where pressure rating and code stamping suit the new duty.
  • Pumps, valve groups, and general auxiliary equipment.
  • Ammonia compressor packages in general. An ammonia screw or reciprocating machine coming out of a plant converting to low charge ammonia or CO2 is often a straightforward fit for another ammonia operation.

Requires closer evaluation

  • Refrigerant specific components. Anything sized, rated, or materially selected for the original refrigerant needs verification against the new duty rather than assumption.
  • Evaporators. Circuiting, tube material, and defrost arrangement are application specific. Evaporators often transfer, but check the design conditions against yours.
  • Safety systems, relief devices, and detection. Set points and sizing follow the original design. Treat these as items to be re-engineered rather than reused as configured.
  • Controls software and integration. The panel may be excellent hardware and still require substantial work to talk to your system.

Our used compressor buyer checklist covers the mechanical inspection in detail, and it applies to conversion equipment the same as anything else.

Timing the market

Plant conversion packages do not sit. They come available on the conversion project schedule, which means a window of a few weeks between the decision to sell and the rigging date, and they move to whoever is ready.

If you have a known capacity need coming, the practical move is to tell a dealer what you are looking for before the package exists rather than after. Specifications, tonnage range, refrigerant, voltage, and footprint constraints. That way the match happens when the plant calls. This is how most cold storage expansion projects get equipped on schedule.

This is also the supply side reason the reclaim rules matter to buyers. Conversions are exactly the situation those rules were written for, and a conversion package handled by a seller who documented the refrigerant recovery properly is a cleaner asset than one that was not.

What this means if you are the one converting

If your plant is moving to transcritical CO2 or low charge ammonia, the outgoing equipment is an asset on a clock. Its value is highest while it is still running and documented, and it declines from the moment it comes out and sits.

Get a valuation before the rigging contractor is scheduled, not after the equipment is in a yard. That sequencing alone is usually worth more than any negotiation on the price. Submit your equipment or see how we buy used refrigeration equipment. On the buy side, browse current inventory or call 201-805-1441 with your specifications. Conversion packages move quickly, and the buyers who get them are the ones already on the list.

Frequently Asked Questions

About the Author

Michael Rosenberg works with buyers and sellers of surplus and used industrial refrigeration equipment at Refrigeration Equipment Professionals, which has supplied ammonia and freon systems directly to contractors and plants for more than 25 years. His day to day work covers plant decommissioning packages, compressor and chiller sourcing for food processing, cold storage, brewing, and industrial refrigeration operations, and equipment valuations for owners liquidating or upgrading a refrigeration plant. Reach him at 201-805-1441 or through the contact page.

Sources

  1. ATMOsphere, Refrigeration: Commercial and Industrial Refrigeration with Natural Refrigerants (May 2026), reported by NaturalRefrigerants.com. https://naturalrefrigerants.com/news/adoption-transcritical-co2-north-america-increased-28-in-2025/
  2. IIAR Condenser, The Design of CO2 Refrigeration Systems Using Ammonia System Design Principles. https://iiarcondenser.org/the-design-of-co2-refrigeration-system-using-ammonia-system-design-principles/
  3. U.S. EPA, Emissions Reduction and Reclamation Program fact sheet on reclaim requirements (January 2026). https://www.epa.gov/system/files/documents/2026-01/er-r-fact-sheet-reclaim-2026-01-13.pdf
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America’s Cold Storage Fleet Is 37 Years Old: The Case for Retrofitting Instead of Building

Large industrial cooling unit with vented panels and a metal frame on a dirt lot, with machinery in the background.

QUICK ANSWER

More than 75 percent of existing US cold storage was built before 2000, and the average facility is roughly 37 years old. Vacancy is often below 2 percent, and rents run 100 to 200 percent above conventional industrial space, so demand is not the constraint.

Cost is. Cold storage construction runs 130 to 350 dollars per square foot, and 250 to 400 dollars per square foot for automated facilities, which is two to three times the cost of dry warehouse. Against that spread, adding tonnage inside an existing envelope through matched capacity compressors, added evaporator surface, and condenser upgrades reaches usable capacity faster and at a fraction of the capital. Surplus equipment is what makes that schedule possible.

The fundamentals say build. The cost structure says do not.

The demand picture for temperature controlled space is about as strong as it gets in industrial real estate. Development Magazine reported this summer that temperature controlled facilities represent only 2 to 5 percent of total US industrial inventory, vacancy is often below 2 percent, rents run 100 to 200 percent above conventional industrial space, and cap rates reach 7.65 percent, a 50 to 100 basis point premium over dry warehouses. [1]

The US cold storage market was roughly 44 billion dollars in 2025 with projections approaching 125 billion by 2034, driven by online grocery, pharmaceutical cold chain requirements including storage at minus 20 to minus 80 degrees Celsius, and frozen food capacity. [1]

Now the other side of the ledger. Cold storage construction runs 130 to 350 dollars per square foot, and 250 to 400 dollars per square foot for advanced automated facilities. That is two to three times the cost of dry warehouse for the same footprint. [1] Layer on elevated equipment costs, with tariff driven increases reported in the 15 to 30 percent range for commercial HVAC and refrigeration equipment, and long manufacturer lead times worsened by data center cooling demand competing for the same production capacity, and the ground up build stops penciling for a lot of operators. [2] [3]

The market has responded. Speculative cold storage development has corrected, and the operators who still need capacity are looking at what they already own. [4]

The fleet you already have is the opportunity

Over 75 percent of US cold storage predates 2000, and the average facility is around 37 years old. [1] Read pessimistically, that is an obsolescence problem. Read accurately, it is an installed base of buildings in the right locations with the right zoning, the right power service, the right dock configuration, and refrigeration plants that were sized for a different throughput than they carry today.

A 1990s ammonia plant in a well located building is not a liability. It is a foundation with an envelope, a slab, a machine room, and a utility service already in place. Those are the expensive parts of cold storage, and replacing them is what drives the 130 to 350 dollar per square foot number.

What those plants usually need is capacity, efficiency, or both. That is an equipment problem, and equipment problems are solvable on a timeline that a construction project cannot match.

Where the tonnage actually comes from

De-bottlenecking an existing plant follows a predictable order. In most facilities the constraint is one of four things, and the fix for each is available on the secondary market.

Compression capacity

The most common constraint and usually the most expensive to solve new. A matched screw compressor package or an added reciprocating machine on the existing suction group can add substantial tonnage without touching the building. Our comparison of screw and reciprocating compressors covers where each makes sense.

Evaporator surface

Frequently the real limit in older freezers, especially where product mix has shifted toward faster pulldown. Adding evaporator surface is the cheapest tonnage in the plant when the compression capacity is already there, and it is often the first thing an energy audit finds.

Heat rejection

An undersized or fouled condenser raises head pressure and steals capacity from every machine in the room. Condensers and cooling towers are frequently available in good condition from plant conversions, and the payback on right sizing heat rejection is usually the shortest in the project.

Vessels, controls, and the rest

Liquid receivers and separators, valve groups, control panels, and motors and starters are the components that turn a compressor purchase into a working capacity increase. They are also the components with the longest new equipment lead times relative to their cost, which is exactly where surplus earns its keep.

One regulatory note that works in favor of this approach: under the 2026 Technology Transitions rule, a capacity increase of 15 percent or less is not treated as an installation for compliance purposes. That gives incremental expansion more room than a full system replacement would have.

The schedule argument

The cost comparison is the one that gets presented to the board. The schedule comparison is the one that usually decides it.

A ground up cold storage project runs years from site selection to first pallet. An expansion inside an existing envelope runs months, and a targeted capacity project can run weeks when the equipment is on the ground. In a market with vacancy under 2 percent, capacity you can use this season is worth more than capacity you can use in three years, and the difference is not close.

That is the argument for sourcing surplus specifically rather than simply expanding rather than building. New equipment lead times are the binding constraint on a lot of expansion projects right now. Equipment that already exists does not have a lead time, it has a freight schedule. [3] That also drives year end tax timing.

What to check before you commit

  • Electrical service headroom. Added compression means added connected load. Confirm the service and the switchgear before you buy the machine, not after.
  • Machine room space and code clearance. Adding a package to a room designed for what is already in it is where projects stall.
  • Refrigerant strategy. If the plant is on HFCs, understand what limits apply and when. If it is on ammonia, understand what the added charge does to your PSM and RMP position.
  • Insulation and vapor barrier condition. More tonnage into a leaking envelope is money spent on the wrong problem. This is the one item where the answer is sometimes that the building really does need replacing.
  • Control system compatibility. Older plants often run controls that will not talk to a modern package without an interface. Budget for it up front.

We supply matched packages and components for exactly this kind of project, including full refrigeration plants from facility conversions. Browse current inventory or call 201-805-1441 with your capacity target and existing plant configuration, and we will tell you what we have that fits. Our overview of why surplus works covers the broader case, and our piece on the food and beverage cold chain looks at the same problem from the processing side.

Frequently Asked Questions

About the Author

Michael Rosenberg works with buyers and sellers of surplus and used industrial refrigeration equipment at Refrigeration Equipment Professionals, which has supplied ammonia and freon systems directly to contractors and plants for more than 25 years. His day to day work covers plant decommissioning packages, compressor and chiller sourcing for food processing, cold storage, brewing, and industrial refrigeration operations, and equipment valuations for owners liquidating or upgrading a refrigeration plant. Reach him at 201-805-1441 or through the contact page.

Sources

  1. Michael Delaney, Cold Storage Investment: The Case for Temperature-controlled Real Estate, Development Magazine, Summer 2026. https://www.credaglobal.org/research-and-publications/magazine/2026/Summer-2026/finance/cold-storage-investment-the-case-for-temperature-controlled-real-estate
  2. Facilities News, Multi-Site Operators and Capital Planners Feel the Squeeze as Tariffs Push HVAC Costs Up 15-30%. https://www.facilitiesnews.com/news/tariffs-hvac-equipment-costs-multi-site-capital-planning
  3. The Cooling Report, Where Cooling Components Come From and Why They Are Late: The 2026 Data Center Cooling Supply Chain Guide. https://thecoolingreport.com/intel/data-center-cooling-supply-chain-guide-2026.html
  4. Westside Construction Group, Cold Storage Construction: What a Market Correction Tells Us About the Next Build Cycle (2026). https://www.buildwcg.com/blog-posts/cold-storage-construction-market-correction-2026
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The 15 Pound Leak Rule Is Live: How It Changes the Math on Buying an Older System

Industrial mechanical room: large white PVC pipe network with two rusted pumps and valves on a metal base. A yellow tool lies on the floor in front.

QUICK ANSWER

The EPA leak repair requirements took effect January 1, 2026. They cover appliances with a full charge of 15 pounds or more of HFCs or substitutes with a GWP above 53, and they exempt residential and light commercial air conditioning and heat pumps.

Leak rate thresholds are 30 percent for industrial process refrigeration, 20 percent for commercial refrigeration, and 10 percent for comfort cooling and refrigerated transport. Appliances holding 500 pounds or more require quarterly inspections until the leak rate stays under the threshold for four consecutive quarters. Appliances between 15 and 500 pounds require annual inspections. Automatic leak detection can substitute for inspections, and records are kept three years. For a buyer, this converts leak history and seal condition from a maintenance detail into a recurring compliance cost that transfers with the asset.

Scope and thresholds

The rule applies to refrigerant containing appliances with a full charge of 15 pounds or more that use HFCs or HFC substitutes with a global warming potential above 53. Residential and light commercial air conditioning and heat pump systems are exempt. [1]

The leak rate thresholds are set by application, not by equipment type:

  • Industrial process refrigeration: 30 percent
  • Commercial refrigeration: 20 percent
  • Comfort cooling and refrigerated transport: 10 percent

Exceed the applicable threshold and the clock starts on repair, with retrofit or retirement planning required if the repairs do not hold. [2] The thresholds are annualized leak rates, which means a system that loses a large charge quickly can cross the line well inside a year.

The inspection burden is the real cost

The repair obligation gets the attention. The inspection schedule is what shows up in the operating budget every year.

  • 500 pounds or more: inspections once every three months, continuing until leak rate calculations show the appliance has stayed under the applicable threshold for four consecutive quarters.
  • 15 to 500 pounds: annual inspections, with the same one year of compliant operation standard.
  • Comfort cooling: annual inspections.
  • Automatic leak detection (ALD): can be used as a compliance option in place of the inspection requirements.
  • Recordkeeping: three years, paper or electronic.

On a large ammonia free HFC plant, quarterly inspection of every covered appliance is not a trivial line item, and it does not go away until the system demonstrates four clean quarters. A system with a history of chronic small leaks can sit in quarterly inspection indefinitely.

What this does to used equipment due diligence

The mechanical inspection you already do on a used package has not changed. What has changed is that several of the findings now carry a quantifiable recurring cost instead of a vague one.

Ask for the leak history, not just the service records

Records are kept for three years, which means on most recently operating equipment the leak history exists. A seller who cannot produce it is either not looking or not telling you something. Request the leak rate calculations, not just the repair invoices, because the calculation is what determines inspection frequency.

Price the seals and gaskets against the threshold, not against the repair cost

A shaft seal replacement is a known number. What matters more is whether the system’s leak profile is going to hold under the applicable threshold once it is running in your facility, because that determines whether you inspect quarterly or annually. The same repair carries a very different downstream cost depending on which side of the threshold the system settles.

Evaluate whether ALD can be retrofitted

Automatic leak detection is available as an alternative to the inspection schedule. On a large system, that trade can be worth more than the detection hardware costs. Assess during due diligence whether the machine room layout, the control panel capacity, and the system architecture make an ALD retrofit practical, and get a number for it before you close.

Confirm the actual charge against the 15 pound line

Coverage turns on full charge. On smaller condensing units and packaged systems, the difference between an appliance that is covered and one that is not can be a matter of pounds. Verify the real charge rather than the nameplate figure, and remember that the same verification drives your GWP obligations under the 2026 Technology Transitions rule.

The ammonia contrast, stated honestly

R-717 is not an HFC, and ammonia systems fall outside this rule entirely. For an operator weighing a used ammonia plant against a used HFC plant, that is a genuine difference in ongoing compliance burden, and it is one reason ammonia continues to hold its position in industrial applications.

It is not a free pass. Ammonia carries its own regulatory weight. Above threshold quantities, OSHA process safety management and EPA risk management program obligations apply, and those programs are more demanding in aggregate than quarterly leak inspection. [3] [4] Mechanical integrity programs, process hazard analysis, operator training, and emergency response planning are real and ongoing costs.

The honest comparison is not that ammonia has no compliance burden. It is that ammonia’s burden is well established, well understood by the contractors who service it, and stable, while the HFC regulatory picture has moved three times in three years. If your operation already runs ammonia compressors and has a mature PSM program, adding ammonia capacity is a smaller marginal step than most buyers assume. If it does not, the startup cost of a PSM program belongs in the acquisition analysis.

Our comparison of screw and reciprocating compressors covers the mechanical side of that decision. This is the regulatory side of it.

Putting a number on it

For a used HFC system, add these to the acquisition model: inspection labor at the applicable frequency, the cost of an ALD retrofit if it makes sense, seal and gasket work required to bring the leak rate under threshold, and the recordkeeping overhead. For a used ammonia system, add PSM and RMP program cost where threshold quantities apply, or confirm the marginal cost is near zero because the program already exists.

Then compare. In a lot of cases the ammonia package still wins on total cost of ownership, and now there is a defensible compliance reason to put in the file alongside the efficiency argument. If the system in question is going into an existing refrigerated warehouse, run the same numbers against the retrofit versus new construction comparison.

Browse ammonia and freon inventory or call 201-805-1441 to talk through a specific package. If you are moving equipment out, submit it here.

Frequently Asked Questions

About the Author

Michael Rosenberg works with buyers and sellers of surplus and used industrial refrigeration equipment at Refrigeration Equipment Professionals, which has supplied ammonia and freon systems directly to contractors and plants for more than 25 years. His day to day work covers plant decommissioning packages, compressor and chiller sourcing for food processing, cold storage, brewing, and industrial refrigeration operations, and equipment valuations for owners liquidating or upgrading a refrigeration plant. Reach him at 201-805-1441 or through the contact page.

Sources

  1. U.S. EPA, Leak Repair Requirements for Appliances Containing HFCs fact sheet (January 2026). https://www.epa.gov/system/files/documents/2026-01/er-r-fact-sheet-leak-repair-2026-01-13_1.pdf
  2. U.S. EPA, Regulatory Actions for Managing HFC Use and Reuse. https://epa.gov/climate-hfcs-reduction/regulatory-actions-managing-hfc-use-and-reuse
  3. U.S. OSHA, Ammonia Refrigeration: Evaluation and Control. https://www.osha.gov/ammonia-refrigeration/evaluation-control
  4. U.S. EPA, Risk Management Program (RMP) Rule. https://www.epa.gov/rmp
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Can You Legally Sell Used Refrigeration Equipment With the Charge Still In It? The 2026 Reclaim Rules Explained

Industrial mechanical room with a large white ammonia refrigeration tank on a blue stand, worker in teal shirt and blue helmet inspecting pipes and valves.

QUICK ANSWER

Not without handling the refrigerant correctly first. Under EPA Emissions Reduction and Reclamation (ER&R) requirements, equipment containing recovered HFCs cannot be sold to a new owner unless the refrigerant meets the reclaimed standard, or the equipment is destined for reclamation or destruction.

As of January 1, 2026, refrigerant only counts as reclaimed if it was processed by an EPA certified reclaimer and contains no more than 15 percent virgin HFC by weight, and containers must carry a label certifying it. Beginning January 1, 2029, supermarket systems, refrigerated transport, and automatic commercial ice makers must be serviced with reclaimed refrigerant. For anyone decommissioning a plant, the practical answer is to recover the charge through a certified reclaimer and let the documentation travel with the asset.

The provision that changes how packages get sold

Most of the coverage of EPA refrigerant rules over the last two years has focused on what you are allowed to install. The ER&R program contains a provision that speaks to something different, which is what you are allowed to transfer.

Equipment containing recovered HFCs cannot be sold to a new owner unless the refrigerant in it meets the reclaimed standard, or the equipment is going to reclamation or destruction. [1] That is a transaction level rule, and it applies whether the asset is a single condensing unit or an entire plant package.

For a food processor closing a line, a cold storage operator converting a plant, or a brewery consolidating capacity, this belongs on the decommissioning checklist alongside lockout tagout and rigging. It is not a technicality that gets sorted out at the buyer end.

What counts as reclaimed refrigerant now

The standard tightened on January 1, 2026, and the details matter because they determine what documentation is worth anything.

  • Reclaimed HFCs cannot contain more than 15 percent virgin HFC by weight. Virgin means newly produced.
  • Only refrigerant processed by an EPA certified reclaimer that meets the applicable standard qualifies. Recovery alone does not make refrigerant reclaimed.
  • Containers must carry a label certifying that the contents do not exceed the 15 percent virgin threshold.
  • Certified reclaimers keep records for three years, covering contact information, batch certification, the virgin percentage per batch, fill dates, quantities, container serial numbers, and batch identification.

Recovery and reclamation are different operations, and the distinction is where most sellers get tripped up. A technician who pulls the charge into a recovery cylinder has recovered it. It becomes reclaimed refrigerant only after a certified reclaimer processes it to the standard and certifies the batch. [1] [2]

The 2029 servicing requirement and why it matters now

Beginning January 1, 2029, three subsectors must use reclaimed refrigerant for servicing: supermarket systems, refrigerated transport, and automatic commercial ice makers. [1] Reclaimers, distributors, and wholesalers serving those subsectors report quantities and destinations to EPA, with reports due February 14, 2027 and February 14, 2028.

If you operate in one of those three subsectors, the reclaimed supply chain is about to become your service supply chain. That has a second order effect on the used equipment market that is worth naming: reclaimed refrigerant has to come from somewhere, and decommissioned systems from plant conversions are one of the largest sources. A charge that gets vented or mishandled during a plant teardown is supply removed from a market you will be buying into.

If you run commercial ice equipment, this is a good year to get your recovery and documentation practices in order rather than a good year to improvise.

A seller checklist for a plant decommissioning

Whether you are handling the teardown yourself or working through a dealer, these are the questions that decide whether the package trades cleanly.

  • Who recovers the charge, and are they certified? Confirm technician certification and, where reclamation is the path, confirm the reclaimer is EPA certified. Get it in writing before the wrench turns.
  • Where is the refrigerant going? Reclamation, destruction, or reuse on site. Each path has different documentation, and the answer determines whether the equipment can be transferred with a charge in it at all.
  • What documentation travels with the asset? Batch certification, container labels, quantity recovered per system, and the date. A buyer evaluating a package will discount it if the refrigerant history is undocumented, and they should.
  • How is the charge handled at rigging and freight? Equipment that ships dry is simpler to move and simpler to sell. Decide early, because it changes the crating, the paperwork, and sometimes the carrier.
  • Is the equipment being sold, reclaimed, or destroyed? These are legally distinct outcomes. Document which one applies to each line item on the asset list rather than treating the plant as one undifferentiated lot.

What this means for buyers

On the buy side, refrigerant documentation is now part of technical due diligence, not paperwork you chase after delivery. Ask for it at the quote stage.

A package that arrives dry, with a certified recovery record showing what was in it and where the charge went, is worth more than an identical package with an undocumented charge and an unclear chain of custody. That difference is real money on a plant sized lot, and it is entirely within the seller’s control.

It also interacts with the equipment rules. The 2026 Technology Transitions rule governs what you can install and by when, and the 15 pound leak repair requirements govern what you have to monitor once it is running. The reclaim rules govern the transfer in between. All three apply to the same asset.

We handle recovery, documentation, and rigging on the packages we buy, and we expect the same standard on the ones we sell. If you are decommissioning a plant, submit your equipment for a valuation or call 201-805-1441. If you are buying, browse current inventory and ask us for the refrigerant history on anything you are evaluating.

Frequently Asked Questions

About the Author

Michael Rosenberg works with buyers and sellers of surplus and used industrial refrigeration equipment at Refrigeration Equipment Professionals, which has supplied ammonia and freon systems directly to contractors and plants for more than 25 years. His day to day work covers plant decommissioning packages, compressor and chiller sourcing for food processing, cold storage, brewing, and industrial refrigeration operations, and equipment valuations for owners liquidating or upgrading a refrigeration plant. Reach him at 201-805-1441 or through the contact page.

Sources

  1. U.S. EPA, Emissions Reduction and Reclamation Program fact sheet on reclaim requirements (January 2026). https://www.epa.gov/system/files/documents/2026-01/er-r-fact-sheet-reclaim-2026-01-13.pdf
  2. U.S. EPA, Regulatory Actions for Managing HFC Use and Reuse. https://epa.gov/climate-hfcs-reduction/regulatory-actions-managing-hfc-use-and-reuse
  3. Federal Register, Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the AIM Act of 2020, 91 Fed. Reg. 31284 (May 26, 2026). https://www.federalregister.gov/documents/2026/05/26/2026-10387/phasedown-of-hydrofluorocarbons-reconsideration-of-certain-regulatory-requirements-promulgated-under
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EPA Just Moved the Refrigerant Deadlines: What the 2026 Technology Transitions Rule Means for Used Equipment Buyers

Cold storage room with white insulated walls, two ceiling-mounted cooling units, and a stack of cardboard boxes on the right under fluorescent lights.

QUICK ANSWER

On May 26, 2026, EPA finalized the Technology Transitions Reconsideration Rule at 91 Fed. Reg. 31284, effective July 27, 2026. It raises interim global warming potential (GWP) limits and pushes several compliance dates out by five to six years. Cold storage warehouses now operate under an interim GWP limit of 700 until January 1, 2032, instead of a restriction that was set to begin January 1, 2026. Supermarket systems get an interim limit of 1,400 starting January 1, 2027. Final limits of 150 or 300, depending on charge size, apply to all three affected subsectors beginning January 1, 2032.

For buyers of used HFC equipment, the practical effect is a defensible service life runway on assets that looked stranded under the prior schedule. It does not remove the phasedown. It changes the timeline you underwrite against.

What EPA actually finalized

The rule amends the 2023 Technology Transitions Rule issued under the American Innovation and Manufacturing (AIM) Act. It does not repeal the HFC phasedown, and it does not touch the production and consumption allowance schedule. What it does is raise the interim GWP ceilings that new installations have to meet, and move the dates those ceilings tighten.

The changes that matter to this market:

  • Cold storage warehouses: interim GWP limit of 700 until January 1, 2032. The prior rule set a compliance date of January 1, 2026.
  • Supermarket systems: interim GWP limit of 1,400 beginning January 1, 2027, replacing a January 1, 2028 compliance date.
  • Remote condensing units: interim GWP limit of 1,400 as of the effective date.
  • All three subsectors: final limits of 150 or 300, depending on charge size, beginning January 1, 2032.
  • Industrial process refrigeration and chillers used in semiconductor manufacturing with a charge of 100 pounds or less: compliance extended to January 1, 2030.
  • Refrigerated laboratory equipment: extended from January 1, 2026 to January 1, 2028.

EPA projects the amendments will produce roughly 976 million dollars in engineering cost savings, concentrated in the supermarket sector. [1] [2]

Why this changes the used equipment calculation

Under the prior schedule, an operator evaluating a used R-448A or R-449A rack was looking at a compliance wall inside two to three years. That is not enough runway to justify a capital purchase, and it pushed a lot of buyers toward paying new equipment prices for low GWP systems they were not otherwise ready to install.

A horizon that runs to January 1, 2032 is a different decision. On a machine with ten to fifteen years of mechanical life remaining, five to six years of clear regulatory runway is long enough to fully depreciate a surplus purchase, run a planned conversion on your own capital schedule instead of an enforcement schedule, and avoid paying a scarcity premium during a period when new equipment lead times and prices remain elevated.

None of that is an argument for buying any HFC system that shows up. It is an argument for pricing them correctly and evaluating them on the same technical basis you would apply to anything else. The mechanical due diligence has not changed, and our used compressor buyer checklist still applies line for line.

Two details buyers get wrong

Charge size decides whether 150 or 300 applies in 2032

The final limits are not a single number. Systems fall to either 150 or 300 depending on charge size, so the number that governs your equipment in 2032 depends on how the system is actually configured, not on the subsector alone. Confirm the real charge in writing during due diligence rather than working from a nameplate assumption or an as built drawing that predates the last retrofit. On a distributed system, confirm how the charge is counted across the circuit.

A capacity increase of 15 percent or less is no longer an installation

The amended rule states that increasing the capacity of an existing system by 15 percent or less is not treated as installation for compliance purposes. That is a meaningful carve out for anyone de-bottlenecking an existing plant. Adding evaporator surface, upgrading condensers, or swapping in a larger compressor for incremental tonnage can stay inside that threshold and avoid triggering the GWP limit that would apply to a new install. Confirm the percentage calculation with your engineer before you commit, because the threshold is the whole point of the provision.

What did not change

  • The HFC production and consumption phasedown continues on its allowance schedule. Virgin high GWP refrigerant supply keeps tightening regardless of what you are permitted to install, and that shows up in service costs long before it shows up in equipment rules.
  • The leak repair requirements that took effect January 1, 2026 still apply to any appliance with a full charge of 15 pounds or more. See how the 15 pound leak rule changes the math on older systems.
  • The reclaim provisions that govern how equipment containing recovered HFCs can be transferred to a new owner still apply. See what the 2026 reclaim rules mean when you sell equipment with the charge still in it.
  • Industry litigation over the underlying Technology Transitions Rule remains pending in the D.C. Circuit Court of Appeals. [3]

That last point deserves weight in a capital decision. The direction of travel on HFCs has been consistent across administrations, and the endpoint in 2032 did not move. Build reversibility into the plan rather than assuming the current dates are permanent.

How to buy against a 2032 horizon

  • Document the refrigerant type and actual measured charge in writing before purchase, not after delivery.
  • Match remaining mechanical life against January 1, 2032 and decide up front whether the exit is a conversion, a resale, or a retirement.
  • Favor components that survive a refrigerant change. Motors and starters, vessels and liquid receivers, valves, control panels, and condensers and cooling towers generally carry forward. Refrigerant specific components often do not.
  • Price the eventual conversion into the acquisition rather than treating it as a future problem. A surplus purchase that pencils only if the conversion never happens is not a purchase, it is a deferral.

One more timing note. Because the runway is now long enough to justify the purchase, the constraint moves to when you can get equipment in service, which matters for year end capital and tax planning. If you are working a specific system and want a second opinion on what carries forward and what does not, browse current inventory or call 201-805-1441. If you are on the other side of the transaction and decommissioning a plant, submit your equipment and we will tell you what the package is worth.

Frequently Asked Questions

About the Author

Michael Rosenberg works with buyers and sellers of surplus and used industrial refrigeration equipment at Refrigeration Equipment Professionals, which has supplied ammonia and freon systems directly to contractors and plants for more than 25 years. His day to day work covers plant decommissioning packages, compressor and chiller sourcing for food processing, cold storage, brewing, and industrial refrigeration operations, and equipment valuations for owners liquidating or upgrading a refrigeration plant. Reach him at 201-805-1441 or through the contact page.

Sources

  1. Federal Register, Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the AIM Act of 2020, 91 Fed. Reg. 31284 (May 26, 2026). https://www.federalregister.gov/documents/2026/05/26/2026-10387/phasedown-of-hydrofluorocarbons-reconsideration-of-certain-regulatory-requirements-promulgated-under
  2. Holland & Knight, EPA Finalizes Changes to Technology Transitions Provisions of the AIM Act (May 2026). https://www.hklaw.com/en/insights/publications/2026/05/epa-finalizes-changes-to-technology-transitions-provisions
  3. Hunton Andrews Kurth, Status Update on the AIM Act and EPA HFC-Refrigerant Regulations. https://www.hunton.com/the-nickel-report/status-update-on-the-aim-act-and-epas-hfc-refrigerant-regulations
  4. U.S. EPA, Technology Transitions HFC Restrictions by Sector. https://www.epa.gov/climate-hfcs-reduction/technology-transitions-hfc-restrictions-sector
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Latin America and Caribbean Cold Chain Build-Out: A 2026 Sourcing Outlook

Large metallic cylindrical tank lying on grass in an industrial yard, with safety labels and equipment in the background.

Latin America and the Caribbean have been building cold chain capacity at a pace that outstrips much of the developed world, and 2026 has not broken that trend even as capital tightened globally. The region’s role in feeding global markets, its concentration of perishable exports, and its ongoing investment in port-adjacent logistics all point to sustained demand for refrigeration equipment. What makes this a sourcing story rather than just a market story is the fit between what the region needs and what the North American surplus market supplies. This outlook lays out where the growth is, what is driving it, and why used and surplus equipment is well matched to it.

QUICK ANSWER

Latin America is one of the fastest-growing cold chain regions in 2026. GCCA data puts the region ahead of North America and, over a six-year window, among the strongest for capacity growth, with 2026 expansion led substantially by acquisitions. The region accounts for roughly a quarter of global food exports, and new investment is concentrating in logistics hubs near ports and major consumption centers. For operators building out capacity in a cost-sensitive, fast-moving market, North American surplus refrigeration equipment is a strong match: it removes new-build lead times, lowers capital outlay, and pairs with export crating and logistics to arrive ready to install. Refrigeration Equipment Pros supplies the region from U.S. warehouses and handles removal, evaluation, crating, and shipping.

Where the growth is in 2026

The Global Cold Chain Alliance’s 2026 rankings show cold storage capacity expanding worldwide, and they show that expansion is not evenly distributed. Latin America stands out. Over a six-year window it ranks among the strongest regions for capacity growth, well ahead of North America’s more measured pace, and in 2026 the region’s growth was led substantially by acquisition activity rather than purely organic construction. That combination, strong long-run growth plus active consolidation, shapes both the demand for new capacity and the availability of equipment on the secondary market.

The demand behind these numbers is structural. Latin America accounts for roughly a quarter of global food exports, which places the region at the center of the world’s temperature-sensitive supply chains. Protecting that export value depends on reliable refrigeration from the point of production through processing, storage, and port. As export volumes grow and quality standards tighten, so does the need for dependable cold chain capacity.

What is driving investment

Several forces are pushing capital into the region’s cold chain at once.

  • Port-adjacent logistics hubs. Investment is concentrating in facilities near ports and major consumption centers. These hubs increase throughput efficiency, reduce food loss, and add resilience to supply chains that move perishable goods from inland production to export terminals and to growing domestic markets.
  • Export protection. With the region supplying a large share of global food exports, cold chain capacity is a direct lever on export value. Reducing spoilage between harvest and shipment protects margins across fruit, seafood, meat, and other perishable categories.
  • Domestic consumption growth. Rising incomes and urbanization expand domestic demand for frozen and chilled products, adding load beyond the export sector and pulling capacity toward consumption centers.
  • Consolidation and new entrants. Acquisition-led growth in 2026 signals that both established operators and new market entrants see durable demand. Consolidation also releases equipment as networks are rationalized, feeding the secondary market.

The perishable categories behind the demand

The region’s cold chain demand is not abstract; it is tied to specific high-value perishable categories, each with its own refrigeration profile. Fruit and produce exports move enormous volumes through pre-cooling, cold storage, and reefer logistics, and they are unforgiving of temperature excursions between field and port. Seafood and fish processing, a major sector across the region’s coastlines, depends on ice production, blast freezing, and low-temperature storage to hold quality from catch to export. Meat and poultry processing add freezing and cold storage load at scale, and beverage and dairy operations bring their own steady refrigeration demand near consumption centers.

Each of these categories maps to equipment REP handles: compressors sized for low-temperature freezing duty, evaporative condensers and evaporators, ice machines for seafood operations, and the vessels and auxiliary equipment that complete a plant. A buyer serving one of these sectors is rarely looking for a generic system; they are looking for equipment matched to a specific process temperature and throughput, which is exactly the kind of targeted sourcing the surplus market supports well.

Why North American surplus equipment fits this market

A fast-growing, cost-sensitive market building capacity in a higher-rate global environment is close to the ideal case for surplus and used refrigeration equipment. The fit runs along several lines.

Lead time and speed to capacity

New industrial compressors, condensers, and vessels carry long factory lead times. A logistics hub racing to be operational before a harvest or an export season cannot always wait for a new-build schedule. Surplus equipment that is already built, inspected, and in a U.S. warehouse can ship on a very different timeline, which turns lead time from a constraint into an advantage.

Capital efficiency

Industrial refrigeration equipment is engineered for decades of service, so buying proven hardware on the secondary market captures most of its remaining life at a fraction of new-build cost. In a cost-sensitive region, and in a global environment where financing is more expensive, that lower capital outlay improves project economics and lets a given budget deliver more capacity.

Proven, serviceable platforms

Much of the region’s industrial refrigeration runs on ammonia, and the North American surplus market is deep in exactly the ammonia compressors, evaporative condensers, evaporators, vessels, and recirculator packages these plants use. Buying established platforms means parts and service knowledge are widely available, which matters more, not less, in markets where minimizing downtime is critical. The brands that dominate the used North American market are the same ones the region’s contractors already know how to maintain, so an operator is not inheriting an orphan system that no local technician can service.

There is also a resilience argument. Cold chain facilities in the region increasingly plan around power reliability and climate volatility, which puts a premium on rugged, field-proven equipment and on the ability to add redundancy affordably. Surplus equipment makes redundancy financially reachable: a spare compressor or a second condenser bought used is a fraction of the cost of specifying that redundancy new, and it can be the difference between riding through a disruption and losing a facility’s product.

The Caribbean’s particular case

The Caribbean deserves specific attention within the regional picture, because its constraints sharpen the surplus argument. Island markets face high costs for new capital equipment, long ocean freight timelines, and the practical reality that a failed unit cannot be swapped from a nearby supplier overnight. That makes speed to capacity and affordable redundancy even more valuable than they are on the mainland. Tourism-driven food service, seafood processing, and imported-goods distribution all lean on reliable cold storage, and interruptions carry outsized consequences on an island supply chain with fewer fallback options.

For Caribbean operators, sourcing proven used equipment from U.S. warehouses, properly evaluated and crated for ocean transport, is often the most direct route to dependable capacity. It compresses the timeline, controls the capital cost, and puts equipment in service that local technicians recognize. The same logistics discipline that serves the mainland region applies here with even less margin for error, which is why handling removal, evaluation, crating, and shipping under one roof matters most for island destinations.

Logistics and export crating make it work

A surplus purchase for a Latin American or Caribbean project only succeeds if the equipment arrives in the condition it left in. That is a logistics and preparation problem as much as an equipment problem. Removal from the source site, evaluation, proper export crating, and shipping all have to be handled correctly for a cross-border used-equipment deal to deliver on its promise. The advantage of sourcing from a dealer that manages this full chain is that the equipment is evaluated before it ships and crated for export rather than handed off through multiple parties, each of which is a point where condition and schedule can slip.

Refrigeration Equipment Pros supplies the region from U.S. warehouses in New Jersey, Texas, and California, and handles the surrounding services that make cross-border surplus buying practical: purchasing and removing used equipment, evaluating and storing it, export crating, and shipping and logistics. For a buyer in Latin America or the Caribbean, that means dealing with a single source from selection through delivery.

The sourcing takeaway

The region’s cold chain is growing for durable reasons: its central role in global food exports, port-adjacent logistics investment, and rising domestic demand. Those reasons are not tied to any single year’s capital conditions. What the current higher-rate environment does is sharpen the case for meeting that demand with surplus and used equipment, which delivers proven capacity faster and at lower capital cost than a new build. Combined with export crating and logistics handled under one roof, North American surplus equipment is one of the most practical ways for operators across Latin America and the Caribbean to add cold chain capacity in 2026.

Frequently Asked Questions

Talk to Refrigeration Equipment Pros

Refrigeration Equipment Pros supplies surplus and used industrial refrigeration equipment to buyers across North America, Latin America, and the Caribbean. Browse current inventory at refrigerationequipment.net, and if you are decommissioning a plant or have surplus units to move, visit our Sell To Us page. To discuss a specific requirement with our team, call or text 201-805-1441.

Sources
  • GCCA 2026 Top 25 regional rankings and North America cold chain coverage – gcca.org; Food Logistics (foodlogistics.com), Apr 29, 2026; Refrigerated & Frozen Foods (refrigeratedfrozenfood.com), Apr 29, 2026.
  • GCCA ‘2026 Cold Chain Outlook’ (COLD FACTS, gcca.org): Latin America ~25% of global food exports; port-adjacent logistics hub investment (Rafael Rocha, Emergent Cold LatAm).

GCCA North America / Latin America regional Top lists commentary (gcca.org).

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Evaporative Condenser Sizing and Selection for Ammonia Plants

Mycom N6WB compressor with 100 HP ammonia compressor

The condenser is where an ammonia system gives up its heat, and getting it wrong is expensive in two directions. Undersize it and the plant runs at a higher condensing temperature than intended, which drives up compressor power every hour the system operates. Oversize it and you have paid for capacity and footprint you did not need. For buyers sourcing a used evaporative condenser, the sizing question comes with a second one: is this specific unit, with its specific coil and mechanical condition, actually able to deliver its rated capacity in your climate. This guide covers both, the sizing fundamentals for ammonia service and the used-market inspection points that decide whether a given condenser is a sound purchase.

QUICK ANSWER

Size an evaporative condenser to the plant’s total heat of rejection, not just its refrigeration tons, because the condenser must reject compressor power in addition to evaporator load. Select against the local design wet-bulb temperature and the chosen condensing temperature: the closer the condensing temperature is to the wet-bulb, the larger and more efficient the condenser, and the higher the condensing temperature, the smaller the condenser but the higher the compressor power. Manufacturers rate ammonia condensers at a standard reference condition and publish heat-rejection capacity factors for selection at other wet-bulb and condensing conditions. Most evaporative condensers are hot-dip galvanized steel; specify stainless steel where water chemistry is aggressive or the unit will be hard to replace. On the used market, the coil, fans, motors, and pan are the components that determine whether a unit is worth buying.

Size to total heat of rejection, not refrigeration tons

The most common sizing error is condensing only the evaporator load. A condenser must reject everything the system absorbs at the evaporator plus the energy the compressor adds to the gas. That sum is the total heat of rejection, and it is the number the condenser has to handle. Manufacturers generally offer two selection paths: a heat-of-rejection method, where you select directly against the calculated total heat rejection, and an evaporator-tons method, where the load is expressed in refrigeration tons and a factor accounts for the compressor heat. Either works, but the total-heat-of-rejection basis is the one to reason from, because it makes the compressor contribution explicit and keeps you from undersizing.

The compressor’s contribution is not fixed; it depends on the operating conditions. A system running a large lift between suction and discharge adds more heat per ton than one running a small lift, so the ratio of total heat rejection to evaporator tons is higher on low-temperature duty. This is one reason a condenser pulled from a high-temperature plant is not automatically the right size for a low-temperature one at the same tonnage. Reason from the heat of rejection at your conditions.

Design wet-bulb and condensing temperature drive everything

An evaporative condenser rejects heat primarily by evaporating water, which is why its performance is governed by the wet-bulb temperature of the air, not the dry-bulb. That is also why it can hold a condensing temperature much closer to ambient than an air-cooled condenser can. Two temperatures define the selection.

Design wet-bulb temperature

Select against the design wet-bulb temperature for the installation’s location, published by ASHRAE and other sources for each locality. This is the demanding condition the condenser has to satisfy. Choosing a design wet-bulb that is too low for the actual site guarantees the condenser will fall short on hot, humid days, which are exactly the days the plant most needs its capacity.

Condensing temperature and approach

The gap between the condensing temperature and the design wet-bulb is the single biggest driver of condenser size. The closer the condensing temperature sits to the wet-bulb, meaning a smaller approach, the larger the condenser must be. Push the condensing temperature higher, and the condenser gets smaller and cheaper, but the compressor now works against a higher head and consumes more power for every hour of operation. That trade is the heart of condenser selection: capital and footprint on one side, lifetime energy cost on the other. Many engineers argue for specifying the approach rather than a fixed condensing temperature, because specifying condensing temperature alone can leave a condenser oversized or undersized from an energy standpoint depending on the local wet-bulb.

For ammonia service, manufacturers publish a base rating at a standard reference condition, commonly around a 20 degree suction, a 96.3 degree condensing temperature, and a 78 degree wet-bulb, and then provide heat-rejection capacity factor tables to correct that rating to the actual wet-bulb and condensing conditions of your application. Selecting a used unit means taking its rated capacity at the reference condition and applying the appropriate factor for your climate and your condensing temperature, not assuming the nameplate number applies as-is.

Materials of construction

The heat exchanger coil is the heart of an evaporative condenser, and materials matter for how long that heart lasts. The major manufacturers build the coil from carbon steel and hot-dip galvanize the entire assembly after fabrication, which is the standard and cost-effective construction for most installations. Where the application is harsher, that standard may not be enough.

  • Aggressive water chemistry. Hard water, high chlorides, or poor water treatment shorten the life of galvanized steel. In those conditions, stainless steel construction resists corrosion and extends service life.
  • Hard-to-replace locations. If the condenser sits where removal and replacement would be difficult or costly, the longer life of stainless steel can justify its higher up-front cost.
  • Water treatment and maintenance history. Materials interact with how the unit was operated. A galvanized condenser that ran on well-treated water for its whole life is a very different proposition from one that ran on neglected water chemistry, even at the same age.

For a used buyer, construction material is both a durability question and a diagnostic one. Knowing whether a unit is galvanized or stainless tells you what to expect from its remaining life, and inspecting the actual condition of that material tells you what you are really buying.

Capacity control and operating cost

Sizing sets the ceiling on a condenser’s capability, but capacity control determines what it costs to run day to day. Evaporative condensers reject far less heat when the wet-bulb drops in cooler weather, so for much of the year the unit has more capacity than the plant needs. How that surplus is managed drives both energy and water use. Fan cycling is the simplest approach, switching fans on and off to hold condensing pressure, but it is hard on motors and gives coarse control. Variable-frequency fan control modulates fan speed smoothly, which cuts fan energy significantly at part load because fan power falls roughly with the cube of speed, and it reduces water carryover and wear. A used unit’s existing fan control arrangement, and whether it can accept a drive, is worth understanding, because it affects the true operating cost of the capacity you are buying.

What to inspect on a used evaporative condenser

A used evaporative condenser can be an excellent value, because the pressure-containing coil is robust and these units are engineered for long service. The judgment is in the condition of the wear components and the coil itself.

  • Coil integrity. Inspect the condensing coil for corrosion, thinning, and any evidence of past leaks or repairs. On a galvanized unit, look at the condition of the galvanizing, particularly in the wetted zone. The coil is the one component you cannot easily replace, so it drives the buy-or-pass decision.
  • Fans, motors, and drives. Check fan blades for corrosion and balance, and assess motor and bearing condition. Belt-driven units add belts and sheaves to inspect; direct-drive units shift the focus to the motor and bearings. These are serviceable but they affect the true cost of putting the unit into service.
  • Pan and basin. The water pan and basin sit in the most corrosive part of the machine. Inspect for corrosion, scale, and prior patching. A compromised pan is repairable but is a signal about how the unit was maintained.
  • Water distribution and spray. Check spray nozzles or the water distribution system and the eliminators. Blocked or degraded distribution reduces capacity and can be a sign of scaling from poor water treatment.
  • Overall maintenance evidence. Scale, biological fouling, and corrosion patterns tell you how the water side was managed. A unit that was treated and cleaned looks different from one that was run hard and ignored, and that difference predicts remaining life better than age alone.

Putting it together for a used purchase

Start from your total heat of rejection at your operating conditions, not the plant’s refrigeration tonnage alone. Fix your design wet-bulb from the installation’s location and decide on a condensing temperature that balances condenser size against compressor energy, leaning toward specifying the approach. Take the used unit’s rated capacity at its reference condition and correct it with the manufacturer’s capacity factors for your climate, so you are comparing real delivered capacity rather than a nameplate number. Confirm the construction material against your water chemistry and installation, and inspect the coil, fans, motors, pan, and water distribution to confirm the unit can actually deliver what its rating promises. Done that way, a used evaporative condenser is one of the most cost-effective pieces of heat-rejection capacity an ammonia plant can buy.

Frequently Asked Questions

Talk to Refrigeration Equipment Pros

Refrigeration Equipment Pros supplies surplus and used industrial refrigeration equipment to buyers across North America, Latin America, and the Caribbean. Browse current inventory at refrigerationequipment.net, and if you are decommissioning a plant or have surplus units to move, visit our Sell To Us page. To discuss a specific requirement with our team, call or text 201-805-1441.

Sources
  • ‘Sizing and Selecting Evaporative Condensers‘ – ACHR News (achrnews.com): heat-of-rejection vs evaporator-tons methods; ammonia base rating; galvanized vs stainless construction.
  • ‘Comparing Evaporative and Air Cooled Condensing for Ammonia Systems’ – IIAR Condenser (iiarcondenser.org): approach vs condensing-temperature specification; heat rejection capacity factor tables.
  • BAC Evaporative Condenser Engineering Manual (baltimoreaircoil.com): evaporation-based heat rejection and wet-bulb approach.
  • Refrigeration condenser sizing methodology – hvac-eng.com: total heat rejection = capacity plus compressor power.
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Screw Compressor Economizers and Part-Load Efficiency: A Used-Buyer’s Guide

Industrial machinery in a warehouse: a large gray compressor/pump connected to a spherical tank, with a Yale forklift on the left and various pipes and gauges around it.

Two used screw compressors can carry the same nameplate capacity and the same asking price and still deliver very different operating economics once installed. The difference usually comes down to how the machine handles part load and whether its economizer is actually doing useful work across the range the plant runs at. Most industrial refrigeration systems spend the majority of their hours at part load, not full load, so this is where the real energy bill is decided. This guide explains what a screw compressor economizer is, why part-load control determines whether it pays off, and what to check on a used package before you buy.

QUICK ANSWER

An economizer is a secondary suction port drilled into a screw compressor casing at an intermediate pressure. It draws flash gas from a subcooling vessel, subcools the liquid heading to the evaporator, and raises both capacity and efficiency. The catch for used buyers is part-load behavior: with slide-valve unloading, economizer benefit typically falls off once the slide reaches roughly 75 percent position and is effectively lost below it, so a compressor that looks efficient at full load may not be at part load. Variable-frequency drive control changes that, because holding the slide fully loaded and regulating capacity with speed keeps the economizer working across the load range. When inspecting a used screw package, verify the economizer port and piping, the slide valve and its actuator, the presence and type of capacity control, and whether a VFD is included.

What an economizer actually does

In a screw compressor, the gas is compressed continuously as the rotors mesh, and the pressure rises progressively from the suction end toward the discharge end. Because any pressure between suction and discharge exists somewhere along the rotors, a port can be located at an optimized intermediate point in the casing. That port is the economizer, sometimes called a side port. It functions as a secondary suction inlet into which additional gas can be drawn at that intermediate pressure.

The gas comes from a subcooling device, either a flash economizer vessel or a shell-and-coil subcooler. Liquid refrigerant on its way to the evaporator is subcooled there, and the flash gas produced in the process is routed to the economizer port rather than back to the main suction. Subcooling the liquid increases the refrigeration effect per pound at the evaporator, which raises capacity, and because the flash gas re-enters partway up the compression process instead of at full suction pressure, the efficiency gain comes at a lower energy cost than compressing that gas from suction would. The net effect is a single-stage screw compressor achieving something close to the benefit of two-stage compression from one machine.

Shell-and-coil subcoolers are slightly less efficient than flash-type economizers, because the liquid leaving the coil has to stay above the flashed liquid temperature that cools it. They are, however, well suited to systems with remote or elevated evaporators, since liquid can be supplied to those evaporators at essentially condensing pressure. Knowing which arrangement a used package uses tells you something about the system it came from and how it will behave in yours.

Why part-load control decides whether the economizer pays off

This is the part that separates a good used-screw purchase from a disappointing one. The economizer’s benefit is tied to how the compressor unloads.

Slide valve unloading

Nearly all rotary screw compressors use a slide valve to unload. The slide valve moves along the length of the rotors and shortens the effective compression length, which reduces capacity. It is infinitely adjustable and gives reasonable suction pressure control, typically down to around 25 percent of full capacity. The drawback is that unloading with a slide valve carries a power penalty: as the machine unloads, power does not fall in proportion to capacity, so part-load efficiency degrades. It gets worse at higher compression ratios, meaning lower suction or higher discharge pressures make the penalty larger.

The economizer interacts badly with slide-valve unloading. As the slide moves to unload, it eventually passes the economizer port’s position along the rotors, and the port loses its intermediate-pressure relationship. In practice, economized screw compressors typically lose economizer operation at roughly 75 percent slide position, and below that point the machine runs non-economized. So a compressor that shows an attractive full-load efficiency number can be running without any economizer benefit for much of its actual operating life, because much of that life is spent below 75 percent load. Some designs mitigate this by making the side port part of the slide valve mechanism so the port moves with the slide, but that is a design feature you have to confirm, not assume.

Variable-frequency drive control

A VFD changes the picture. When capacity is regulated by varying compressor speed instead of moving the slide, the slide can be held in the fully loaded position while the drive reduces speed to match the load. Because the slide stays put, the economizer port keeps its intermediate-pressure relationship to suction, and the economizer stays effective across the load range rather than dropping out at part load. That is why VFD-equipped screw packages can hold their efficiency advantage down to low load, while slide-valve-only machines lose it. Most screw compressors can run down to roughly 50 percent speed as rated by the factory, and combining VFD speed control with slide-valve trim for the very bottom of the range is a common approach.

For a used buyer, the takeaway is direct: a screw package that includes a working VFD is worth materially more in real operating cost than the same compressor with slide-valve control only, especially if your plant spends most of its hours at part load. If the VFD is not included, budget for one and factor that into the comparison.

What to inspect on a used economized screw package

Beyond the standard used-compressor checks of operating hours, last overhaul, oil analysis history, and motor and starter condition, an economized screw package has specific items that determine whether the efficiency you are paying for is actually there.

  • Economizer port and piping. Confirm the port exists and is plumbed to a subcooler or flash economizer, and identify whether it is a flash type or a shell-and-coil subcooler. A port that was capped or never connected means you are buying a non-economized machine regardless of the model designation.
  • Slide valve and actuator. Check that the slide valve moves through its full range and that the hydraulic actuator and its oil supply are functional. A sticking or worn slide valve undermines both capacity control and, on designs where the port moves with the slide, economizer behavior.
  • Capacity control type. Establish whether the machine relies on slide-valve unloading only, or includes VFD speed control. This single fact drives the part-load efficiency you can expect.
  • Variable Vi capability. Some screw compressors offer a variable volume ratio that can be adjusted with loading. Where present and functional, it extends the efficient operating range. Confirm whether the used unit has it and whether it still operates.
  • VFD condition and rating. If a drive is included, verify its rating matches the motor, check its condition, and confirm it is suitable for the installation. A drive that needs replacement changes the economics of the deal.
  • Subcooler vessel condition. If the package includes its economizer vessel, inspect it as you would any pressure vessel, and confirm the ASME documentation.

Why part-load hours dominate the energy bill

It is worth being concrete about why this matters so much financially. Industrial refrigeration load is rarely constant. It rises and falls with ambient conditions, production schedules, product pull-down, and door openings, and the design peak that sets the compressor size occurs only during a small fraction of the year. The rest of the time, which is most of the time, the plant runs below design load. That means the part-load region is where the compressor spends the overwhelming majority of its operating hours, and therefore where it consumes the overwhelming majority of its lifetime energy.

A compressor selected or bought purely on its full-load efficiency number is optimized for the condition it will rarely see. Two machines that match at full load can diverge sharply once you weight their performance by the hours actually spent at each load point. This is precisely why the economizer’s part-load behavior and the presence of a VFD are not fine print. They are the terms that determine what the machine costs to run over its life, and on a used purchase they are terms you can verify before you buy rather than discover after installation.

Matching the machine to your duty

The economizer earns more at higher compression ratios, so it is most valuable on low-temperature duty where the lift between suction and discharge is large. If you are buying for a high-temperature application with a modest lift, the economizer benefit is smaller and the part-load control question is correspondingly less critical. Conversely, for low-temperature cold storage or freezing duty that runs long hours at part load, a used economized screw package with working VFD control is often the single most cost-effective way to add efficient capacity. Define your suction and discharge conditions and your expected load profile first, then evaluate used candidates against that duty rather than against nameplate capacity alone.

Frequently Asked Questions

Talk to Refrigeration Equipment Pros

Refrigeration Equipment Pros supplies surplus and used industrial refrigeration equipment to buyers across North America, Latin America, and the Caribbean. Browse current inventory at refrigerationequipment.net, and if you are decommissioning a plant or have surplus units to move, visit our Sell To Us page. To discuss a specific requirement with our team, call or text 201-805-1441.

Sources
  • ‘Using Screw Compressors with Economizers to Improve Efficiency’ – IIAR Condenser (iiarcondenser.org).
  • ‘Using VFDs in Refrigeration and Cold Storage Applications’ – Danfoss (danfoss.com): economizer operation lost near 75% slide position; operation to ~50% speed.
  • ‘A Refrigeration Screw Compressor Package’ – Enerflex technical paper (flash vs shell-and-coil subcooler tradeoff).

Screw compressor capacity-control and vapor-injection technical literature (Purdue ICEC proceedings; ScienceDirect) for slide-valve range and part-load behavior.

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Sourcing Surplus Refrigeration in a Consolidating Cold Storage Market

'surplus industrial refrigeration equipment for cold storage

The cold storage sector spent the last decade in expansion mode. That expansion has not stopped, but in 2026 it changed character. Capital is more expensive, operators are more disciplined about where they build, and the market is consolidating around a handful of very large players. For anyone responsible for procuring refrigeration capacity, that shift has a direct and practical consequence: the case for buying surplus and used equipment is stronger now than it has been in years. This article walks through what the current numbers actually show, why a cautious capital environment favors the secondary market, and how consolidation itself becomes a supply source for buyers who know where to look.

QUICK ANSWER

Cold storage capacity growth slowed in 2026 as higher interest rates made operators more selective about new construction. The GCCA Global Top 25 now run 7.76 billion cubic feet of temperature-controlled space, up 6.3 percent over 2025, a deceleration from 8.3 percent the year before, and the two largest operators alone hold roughly 58 percent of that capacity. In a capital-cautious, consolidating market, surplus and used refrigeration equipment gives buyers a way to add or replace capacity without new-build lead times or new-build pricing. Consolidation also feeds the secondary market, because acquired and rationalized sites release compressors, condensers, evaporators, and vessels that are still well within their service life.

What the 2026 capacity numbers actually show

The Global Cold Chain Alliance publishes the industry’s most-watched capacity benchmark, and the 2026 edition tells a clear story. The Global Top 25 temperature-controlled warehousing and logistics companies now operate 7.76 billion cubic feet of space, an increase of 6.3 percent over 2025. That is real growth, but it is slower growth. The prior year posted 8.3 percent expansion, and the deceleration is attributed to higher interest rates and tightening market conditions that have made operators more selective about new development.

Two structural facts sit underneath that headline. First, the market is heavily consolidated at the top: the two largest operators together account for roughly 58 percent of the Top 25’s total capacity. Second, the bar to compete at scale keeps rising, with the minimum capacity threshold to make the Global Top 25 now around 40 million cubic feet. Over a six-year window, total Top 25 capacity has grown more than 40 percent, so the long-term demand trend remains intact even as the near-term pace cools.

Regional performance is not uniform, and that matters for sourcing strategy. Growth has been fastest in Latin America and Europe, while North America has expanded more modestly and more cautiously in a tighter capital environment. Some analysts also point to pockets of excess space in specific North American markets, which means older or less efficient facilities may be repurposed or decommissioned rather than run indefinitely. Every decommissioned facility is a potential source of used equipment.

Why a cautious capital environment favors the secondary market

When money is cheap, the math on a new build looks easy and buyers tolerate long equipment lead times. When money is expensive, both of those assumptions break down, and that is precisely the environment procurement teams are operating in today. Surplus equipment addresses the two pressures that a high-rate, disciplined-capital market creates.

Lead time

New industrial compressors, evaporative condensers, and pressure vessels can carry long factory lead times, and those timelines do not shrink just because a project’s financing got more expensive. Used equipment that is already built, inspected, and sitting in a warehouse can be delivered on a fundamentally different schedule. For an operator trying to bring capacity online before a customer contract starts, or to replace a failed unit without idling a facility, that time difference is often worth more than the equipment itself.

Capital cost

Industrial refrigeration equipment is engineered for decades of service. A well-maintained screw or reciprocating compressor, a galvanized evaporative condenser, or an ASME-coded vessel does not become obsolete the way a piece of electronics does. Buying that same capability on the secondary market removes a large slice of up-front capital, which is exactly the lever a rate-sensitive operator wants to pull. Lower capital outlay also improves the payback on a project whose financing costs have gone up, which can be the difference between a project moving forward and a project getting shelved.

None of this requires accepting compromised equipment. The point of buying surplus in a disciplined market is not to cut corners; it is to acquire proven, industrial-grade hardware at a fraction of new-build cost and lead time, then verify its condition properly before it goes into service.

Consolidation is a supply source, not just a headline

The same consolidation that dominates the capacity rankings also generates supply for the used market. When large operators acquire smaller portfolios, they rationalize the combined network. Redundant sites, older facilities, and equipment that does not fit the acquirer’s standard platform get retired. That process releases a steady stream of compressors, condensers, evaporators, recirculator packages, and vessels, much of it removed from service for portfolio reasons rather than because the equipment reached the end of its life.

For a buyer, this is an opportunity that did not exist at the same scale a few years ago. Equipment coming out of a consolidating major operator is often relatively young, was maintained under a formal program, and comes with documented operating history. The challenge is not availability; it is knowing how to evaluate what becomes available and moving quickly when the right package appears. A dealer that removes, evaluates, stores, and re-sells this equipment turns an operator’s decommissioning event into another operator’s capacity solution.

What kinds of equipment come out of a decommissioned cold store

It helps to know what a rationalized or decommissioned cold storage facility actually releases, because it maps closely to what a buyer building or expanding capacity needs. The prime movers come first: screw and reciprocating compressor packages, frequently ammonia machines that were maintained under a formal program because ammonia systems demand it. Heat rejection follows, in the form of evaporative condensers that are engineered for very long service lives and are often among the most cost-effective used purchases available.

On the low side of the system, evaporators and unit coolers come out of the refrigerated rooms themselves, along with the recirculator packages, pumps, and vessels that tie a plant together. Pressure vessels such as recirculators, high-pressure receivers, and intercoolers hold value particularly well, since a properly documented ASME vessel does not degrade the way rotating equipment can. Control panels, valves, and auxiliary equipment round out what becomes available. A buyer who understands this inventory can watch for the specific pieces that complete a system rather than waiting for a turnkey plant, which is rarely how surplus becomes available.

How to source surplus equipment in this market

Buying used in a consolidating market rewards preparation. A few practical principles keep a surplus purchase on solid ground.

  1. Define the duty first. Know your required capacity, refrigerant, suction and discharge conditions, and physical constraints before you shop. Surplus buying is opportunistic, and a clear specification lets you move fast on a good match instead of forcing a poor one.
  2. Insist on nameplate and history. For any major component, get the nameplate data, and where possible the operating hours, last overhaul date, and maintenance records. For pressure vessels, confirm the ASME documentation. Equipment from a consolidating major operator is more likely to have this paperwork than a one-off removal.
  3. Inspect the wear items. Compressor bearings and seals, condenser coils and fans, evaporator coils, motor and starter condition, and vessel corrosion are where used equipment tells the truth about its life. A dealer with removal and evaluation experience can flag these before you commit.
  4. Account for logistics and crating. A surplus deal is only as good as the equipment’s arrival condition. Factor in rigging, export crating where applicable, and shipping when you compare a used package against a new one.
  5. Work with a dealer that handles the full chain. Sourcing, evaluation, storage, and logistics under one roof reduces the number of handoffs and the number of things that can go wrong between a decommissioned plant and your facility.

The bottom line for buyers

The underlying demand for cold storage has not gone away. What changed in 2026 is the cost of capital and the discipline operators are applying to new construction, and that combination pushes the smart procurement decision toward the secondary market. At the same time, consolidation at the top of the industry is releasing well-maintained equipment into that market at scale. For buyers who define their duty clearly, verify condition properly, and move decisively, a cautious capital environment is not a reason to wait. It is a reason to source surplus.

Frequently Asked Questions

Talk to Refrigeration Equipment Pros

Refrigeration Equipment Pros supplies surplus and used industrial refrigeration equipment to buyers across North America, Latin America, and the Caribbean. Browse current inventory at refrigerationequipment.net, and if you are decommissioning a plant or have surplus units to move, visit our Sell To Us page. To discuss a specific requirement with our team, call or text 201-805-1441.

Sources
  • GCCA 2026 Top 25 rankings coverage – Food Logistics (foodlogistics.com), Apr 29, 2026; Refrigerated & Frozen Foods (refrigeratedfrozenfood.com), Apr 29, 2026; GCCA (gcca.org) 2026 Top Lists.
  • GCCA Global Cold Storage Capacity Report – gcca.org.
  • ‘2026 Cold Chain Outlook’ and North American cold chain market coverage – GCCA COLD FACTS (gcca.org).
  • U.S. Cold Storage Real Estate Industry Analysis 2025-2030 – analytics.loan, Mar 2026 (for structural supply/demand context).
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Refrigerant Reclamation and Recovery: What Buyers and Sellers Need to Know

Outdoor industrial equipment with an orange vertical tank and a large silver cylinder inside a chain-link fenced area.

Refrigerant handling sits at the intersection of two things every used-equipment transaction touches: regulatory compliance and equipment value. When a system is decommissioned, what happens to its refrigerant affects whether the deal is legal, how clean the equipment is for the next owner, and increasingly, the economics of servicing it down the road. This article explains the difference between recovery, recycling, and reclamation, the rules that govern them, and why both buyers and sellers should care.

QUICK ANSWER

Recovery, recycling, and reclamation are three distinct steps. Under Section 608 of the Clean Air Act, refrigerant must be recovered by EPA-certified technicians, and reclaimed refrigerant must be processed by an EPA-certified reclaimer to meet a virgin-equivalent purity standard. Proper recovery protects the value and saleability of decommissioned equipment, and the AIM Act is steering certain HFC servicing toward reclaimed refrigerant later this decade, which makes the reclamation market increasingly relevant to buyers and sellers of used equipment.

Why This Matters to Buyers and Sellers

For a seller, proper refrigerant recovery is a legal requirement and a value protector: equipment that was decommissioned correctly, with refrigerant handled by certified technicians, presents cleanly and avoids liability. For a buyer, understanding refrigerant status answers practical questions: what was the system charged with, was it recovered properly, and will the refrigerant be available and affordable to service the equipment in the future? In a market where high-GWP HFCs are being phased down, these are not academic questions.

Three Terms That Are Often Confused

Recovery, recycling, and reclamation describe increasingly thorough processes:

  • Recovery: Removing refrigerant from a system and storing it in an external container, without necessarily processing it. This is the baseline step whenever a system is opened or decommissioned.
  • Recycling: Cleaning recovered refrigerant through basic separation of oil and filtering of moisture and particulates, typically with field equipment. Recycled refrigerant is not certified to virgin specifications.
  • Reclamation: Processing recovered refrigerant to meet a virgin-equivalent purity standard, which must be done by an EPA-certified reclaimer. Reclaimed refrigerant can be resold for use in other systems.

The distinction matters because only reclaimed refrigerant, processed to the purity standard by a certified reclaimer, is treated as equivalent to new for resale and reuse across different owners.

Section 608 Requirements

Section 608 of the Clean Air Act governs refrigerant handling in the United States. Under it, refrigerant must be recovered and delivered by EPA-certified technicians, and reclamation must be performed by a reclaimer certified by the EPA, which processes the material to meet the required purity specification. These requirements exist to prevent venting and to keep recovered refrigerant in productive use rather than released to the atmosphere. For anyone buying or selling used equipment, the practical implication is that refrigerant cannot simply be drained and discarded; it must be handled within this certified chain.

The Decommissioning Angle

When a plant is decommissioned, the refrigerant is one of the first things to address, and doing it correctly affects the equipment’s saleability. Properly recovered equipment, with documentation of how and by whom the refrigerant was handled, is more attractive to a buyer and avoids transferring liability. Sloppy or undocumented recovery is a red flag that can stall a sale or reduce value. Sellers preparing equipment for the secondary market should treat refrigerant recovery as part of the value-preservation process, not an afterthought.

The AIM Act Direction

The regulatory trajectory makes reclamation more important over time. Under the AIM Act framework, the EPA has moved toward requiring the use of reclaimed HFCs for servicing certain equipment later this decade, with one widely referenced provision pointing to reclaimed-HFC servicing requirements beginning around 2029. The logic is straightforward: as the supply of newly produced high-GWP HFCs tightens under the phase-down, reclaimed refrigerant becomes the way to keep existing equipment running. That elevates the value of properly recovered and reclaimed refrigerant and makes the reclamation market a growing part of the industry.

For a buyer evaluating a used HFC system, this is a forward-looking consideration: the refrigerant that services the machine in a few years may need to be reclaimed material, and planning for that availability is part of a sound purchase decision.

Documentation Buyers Should Expect and Sellers Should Provide

A clean transaction includes a clear refrigerant record. Buyers should expect, and sellers should provide:

  1. Identification of the refrigerant the system was charged with.
  2. Confirmation of how refrigerant was recovered and that certified technicians performed the work.
  3. Any reclamation records if refrigerant was processed for reuse.
  4. Service history that helps establish the system’s condition and refrigerant handling over its life.

How This Connects to the Broader Phase-Down

Refrigerant reclamation is one piece of the larger HFC phase-down picture. The same regulatory forces driving leak-repair rules and pushing buyers toward natural refrigerants also make reclaimed refrigerant central to keeping HFC equipment serviceable. Buyers weighing a high-GWP HFC system should consider not just today’s compliance obligations but the future refrigerant supply that will keep the equipment running. Refrigeration Equipment Pros works with sellers decommissioning plants and buyers sourcing used equipment, and can help ensure refrigerant status is understood and documented as part of a sound transaction.

Frequently Asked Questions

Decommissioning a plant or sourcing used equipment? Make sure refrigerant status is understood and documented. Browse inventory at refrigerationequipment.net, list equipment through our Sell To Us page, or call 201-805-1441 to talk through a transaction with our team.