Independent Dunham-Bush equipment evaluation
Dunham-Bush Chiller Buyers: Match the Series to the Machine
A Dunham-Bush label is the start of equipment identification, not the whole description. Submit the exact series and serial information, then show the machine’s actual cooling arrangement, compressor or heat-exchanger evidence, condition, included-equipment boundary, and release situation so an independent buyer can review the specific opportunity.
Dunham-Bush series-to-configuration record
Show the series, then prove the machine configuration
Surplus Chiller Buyer is an independent prospective buyer of used and surplus industrial chillers in the United States. It is not affiliated with, authorized by, sponsored by, or endorsed by Dunham-Bush or its trademark owners. “Dunham-Bush” is used only to identify equipment a seller may submit for evaluation. This form starts an independent buyer evaluation for a used or surplus Dunham-Bush chiller. It does not guarantee a purchase, offer, price, payment, inspection, pickup, removal, freight, rigging, dismantling, demolition, refrigerant handling, timing, local office, or project service. Enter only supported facts and identify unknowns clearly.
Useful facts to have ready
- A readable Dunham-Bush nameplate with model and serial number transcribed exactly as marked.
- Wide photos of the complete unit, plus controller, compressor area, heat exchangers, fans or water connections, and all secondary tags.
- Nameplate-supported capacity, electrical data, refrigerant, manufacturing date if shown, and any manuals or service records available.
- Evidence that distinguishes the configuration: air-cooled coils/fans, water-side connections, compressor arrangement, modular sections, or specialty/low-temperature components.
- Current operating, disconnected, stored, damaged, incomplete, or unknown condition; last known operation only if documented.
- Included-versus-retained equipment, exact location, access and shutdown constraints, authority to release, and proposed release timing.
01 / Start with a series-to-machine match
A Dunham-Bush nameplate needs configuration evidence beside it.
The seller task for this page is to create a series-to-configuration evidence match: do not submit only “Dunham-Bush” as the identification. The current U.S. product materials identify distinct families such as DCLC centrifugal, WCFX water-cooled screw, AVX air-cooled screw, ACDS air-cooled scroll, ACHX horizontal screw, and ACM magnetic-bearing equipment. Photographs and the plate together are required because a plate alone, an appearance, or an old equipment list can misidentify compressor type, cooling architecture, refrigerant, or application.
Type the manufacturer, complete model, serial number, and every readable suffix exactly as shown on the primary nameplate. Photograph the full plate before close-ups, preserve secondary tags, and flag any plate that is painted over, missing, damaged, or inconsistent with other records. Treat other brand names such as McQuay, AquaSnap, Sterling, or Temptek as separate identity questions unless the physical evidence on the offered machine proves a relationship.
- Capture a straight-on photo of the primary nameplate and a second photo showing where it sits on the unit.
- Transcribe all model suffixes, serial characters, electrical fields, and refrigerant fields without expanding abbreviations.
- Photograph the controller face and its label; do not equate one controller photo with an exact model.
- Flag a plate that is painted over, missing, damaged, or inconsistent with the equipment list.
- Keep Dunham-Bush, McQuay, AquaSnap, Sterling, and Temptek identities separate unless the physical evidence proves the unit being offered.
02 / Show the cooling architecture that the series suggests
Make the proposed configuration visible, not assumed.
Dunham-Bush official materials separate water-cooled centrifugal and screw chillers from air-cooled screw and scroll chillers. Use photographs to show the features that resolve the category rather than relying on a model name alone. For suspected specialty, low-temperature, ice-storage, or process packages, supply the application-specific package and records instead of assigning a standard comfort-cooling label.
Ask for photos that reveal fan decks and condenser coils on air-cooled machines, or vessel and connection evidence on water-cooled machines. For modular or multi-compressor designs, count and document each visible module or compressor section rather than inferring modularity from a model prefix.
03 / Draw the offer boundary around the chiller and its plant connections
A chiller installation is not automatically a complete chiller plant.
A Dunham-Bush chiller can sit beside pumps, cooling towers, starters, plant controllers, storage tanks, loose spares, or building piping. Proximity does not establish ownership, inclusion, compatibility, or transfer rights. State the boundary in plain terms such as “chiller only,” “chiller plus listed accessories,” or “defined package,” then list retained, excluded, or unknown items.
Make a separate included-versus-retained schedule with asset tags, descriptions, or annotated photos so a prospective buyer can assess whether the offering includes pumps, towers, control panels, electrical disconnects, or spares. Do not call adjacent equipment “original” or “matched” unless a reliable record supports that claim.
04 / Record condition and refrigerant facts without promising site work
Separate what is known about the machine from work that may be needed later.
Report the machine’s current status precisely: operating, shut down, disconnected, stored, damaged, incomplete, leaking, or unknown. Add last known operating date, alarms, repairs, maintenance records, and known missing components only when those details are supported by records. This information helps a prospective buyer decide whether more questions or a site review are needed and is not a diagnosis, offer, inspection commitment, or promise to buy.
If refrigerant, disconnection, cutting, removal, or disposal could affect the opportunity, describe the facts and who controls the site rather than assigning a service scope. EPA Section 608 rules prohibit intentional venting of ozone-depleting refrigerants and their substitutes during maintenance, service, repair, or disposal; cite official guidance and leave any compliance action to appropriately qualified parties.
05 / Submit an evaluation packet that also plans for release
Give a direct prospective buyer a factual package, not a generic listing.
Provide an identity record, configuration evidence, defined equipment boundary, condition report, exact location, access facts, and proposed release timing together so a prospective buyer can evaluate the opportunity. Describe rooftop, mechanical-room, basement, yard, or off-site storage positions and any visibility or access constraints without treating that information as an instruction for Surplus Chiller Buyer to perform work.
If lifting, transport, or removal may later be considered, preserve verified weight and dimensions, lifting-point information, and lifting-route controls. OSHA requires that rigging used for material handling be inspected and legibly marked for its safe working load; leave rigging inspection, selection, and execution to qualified responsible parties and do not treat submission as a commitment to perform or schedule work.
Frequently asked questions
Before you send the chiller.
If your machine does not fit a standard category, submit the available details anyway. Clear photographs and a readable nameplate often establish whether more information is worthwhile.
How do I submit a Dunham-Bush chiller when I only know the brand?
Send the clearest safe photos of the primary plate, full machine, controller, compressor area, heat exchangers, fans or water connections, and any records. Type only readable plate information and mark capacity, refrigerant, year, configuration, and condition as unknown when the evidence does not establish them.
Do DCLC, WCFX, AVX, ACDS, ACHX, ACM, and WCS labels identify the same kind of chiller?
No. Current official Dunham-Bush material associates these names with different product descriptions and cooling/compressor arrangements. Use that information to choose evidence prompts, not to override the actual plate, installed configuration, or records for a used machine.
Can I submit a Dunham-Bush chiller that is still installed or connected?
Yes. Include its installed position, connected utilities, condition, access restrictions, owner/release authority, and proposed release timing. Submission starts an evaluation; it does not mean Surplus Chiller Buyer will purchase it or provide disconnection, removal, rigging, freight, refrigerant handling, or a schedule.
Should pumps, cooling-tower equipment, storage tanks, controls, or spares be included?
Only list them as included if the seller is authorized to offer them. Mark each item included, excluded, retained, shared, leased, missing, or unknown. A separate written transaction would need to define exactly what transfers and who is responsible for each project task.
Is Surplus Chiller Buyer affiliated with Dunham-Bush or able to provide factory support?
No. Surplus Chiller Buyer is independent and uses the Dunham-Bush name only to identify equipment submitted for potential buyer evaluation. It does not represent the manufacturer and does not promise factory support, parts, service, model authentication, or warranty assistance.
Authoritative references
Source material behind this seller guide.
These external manufacturer and government sources support the equipment terminology and planning context used above. They do not establish the condition, configuration, safety, compliance, or transaction fit of a specific chiller.