The Thermo Scientific MR49PA-GAEE-TS Chromatography Refrigerator is a large-capacity laboratory refrigerator specifically designed to support chromatography, protein purification, and other research workflows that require instrumentation to operate under controlled refrigerated conditions. Offering approximately 45 cubic feet (1,275 L) of storage capacity and an adjustable temperature range of 1°C to 12°C, this refrigerator provides the space and specialized access required to accommodate chromatography systems, fraction collectors, columns, buffers, and related laboratory equipment.
Unlike a conventional laboratory refrigerator intended primarily for sample storage, the MR49PA-GAEE-TS incorporates side access ports and an interior electrical receptacle so that chromatography equipment can operate inside the refrigerated chamber. Double sliding glass doors provide excellent visibility of instruments and ongoing separations while helping researchers access equipment without requiring the clearance of large swinging doors.
For laboratories performing protein purification and other temperature-sensitive separations, the MR49PA-GAEE-TS provides a practical alternative to operating equipment in a walk-in cold room. Refurbished models from American Instrument Exchange are inspected, cleaned, temperature tested, and supplied with a 90-day warranty.
Thermo Scientific MR49PA-GAEE-TS Key Features
Thermo Scientific GP Series chromatography refrigerator
Approximately 45 cu. ft. (1,275 L) capacity
Adjustable temperature range of 1°C to 12°C
Factory temperature setpoint of approximately 4°C
Approximately ±3°C temperature stability
Double sliding glass doors
Double-pane insulated glass construction
Two 2-inch side access ports
Interior duplex electrical receptacle for chromatography equipment
Digital temperature controller and display
Automatic defrost
High and low temperature alarms
Keyed controls
Stainless steel interior
Eight adjustable wire shelves
Four stem-mounted casters
R134a refrigeration system
115V electrical configuration
Refurbished and performance tested by American Instrument Exchange
90-day warranty included
Overview
The Thermo Scientific MR49PA-GAEE-TS was purpose-built for laboratories performing chromatography and other temperature-sensitive separations. Maintaining chromatography instrumentation within a refrigerated environment can be important when working with proteins, enzymes, antibodies, and other biological molecules whose stability may be affected by elevated temperatures.
Rather than modifying a standard refrigerator, this chromatography model provides dedicated access ports that allow tubing, cables, probes, and other connections to enter the refrigerated chamber without routing them through the doors. An internal electrical receptacle allows compatible pumps, fraction collectors, detectors, and other equipment to operate within the temperature-controlled environment.
The large 45 cubic foot chamber provides considerable flexibility when configuring purification systems. Double sliding glass doors allow researchers to visually monitor equipment and ongoing separations while providing convenient access to the chamber. The sliding configuration is particularly useful in laboratories where aisle space is limited because the doors do not swing outward into the work area.
Common Applications
The Thermo Scientific MR49PA-GAEE-TS is commonly used for protein purification, FPLC workflows, affinity chromatography, ion-exchange chromatography, size-exclusion chromatography, antibody purification, recombinant protein purification, enzyme purification, fraction collection, chromatography column operation, refrigerated buffer storage, and other temperature-sensitive separation procedures. Its large interior can accommodate chromatography instrumentation along with columns, fraction collectors, buffer reservoirs, tubing, reagents, and associated laboratory materials.
Ideal Laboratory Types
The Thermo Scientific MR49PA-GAEE-TS Chromatography Refrigerator is particularly well suited for biotechnology laboratories, pharmaceutical research facilities, protein purification laboratories, biochemistry laboratories, molecular biology laboratories, university research facilities, core laboratories, biologics development groups, and contract research organizations that regularly perform chromatography under refrigerated conditions.
Performance & Temperature Uniformity
The MR49PA-GAEE-TS provides an adjustable operating range of approximately 1°C to 12°C, with a factory setting near 4°C and specified temperature stability of approximately ±3°C. This operating range supports common refrigerated chromatography workflows while providing flexibility for other temperature-sensitive laboratory applications.
Because chromatography instrumentation can generate heat during operation, proper equipment placement and internal airflow are important. Instruments should be arranged to allow adequate circulation throughout the cabinet rather than blocking refrigeration airflow pathways.
The glass doors also allow researchers to observe equipment without opening the chamber unnecessarily, helping reduce disturbances to the refrigerated environment during long purification runs.
Chromatography System & Sample Recommendations
The MR49PA-GAEE-TS can accommodate many common chromatography components, including FPLC systems, chromatography columns, pumps, fraction collectors, buffer reservoirs, detectors, tubing assemblies, and other compatible purification equipment. Researchers may also use available interior space for refrigerated storage of buffers, chromatography media, protein fractions, enzymes, antibodies, and related biological materials.
The integrated access ports are particularly valuable when external connections are required. Tubing, monitoring probes, communication cables, and other connections can be routed through the cabinet while allowing the refrigerator doors to remain properly closed.
Equipment configuration and total electrical load should always be evaluated before connecting instrumentation to the refrigerator's internal electrical receptacle.
Thermo Scientific MR49PA-GAEE-TS Specifications
Specification
Details
Manufacturer
Thermo Scientific
Model
MR49PA-GAEE-TS
Product Type
Chromatography Refrigerator
Storage Capacity
Approximately 45 cu. ft. (1,275 L)
Temperature Range
1°C to 12°C
Factory Temperature Setpoint
Approximately 4°C
Temperature Stability
Approximately ±3°C
Exterior Dimensions (W × D × H)
Approximately 52.7" × 33" × 81"
Interior Dimensions (W × D × H)
Approximately 49" × 27" × 61.75"
Door Configuration
Double sliding glass doors
Door Construction
Double-pane tempered glass
Interior Finish
Stainless steel
Shelving
Eight full adjustable shelves plus two half shelves
Access Ports
Two 2" side access ports
Interior Electrical
Duplex electrical receptacle
Temperature Controller
Digital
Defrost
Automatic
Refrigeration System
1/3 HP compressor
Refrigerant
R134a
Electrical Requirements
115V, 60Hz
Casters
Four stem-mounted casters
Shipping Weight
Approximately 561 lbs.
Warranty
90-Day Warranty from American Instrument Exchange
Specifications compiled from manufacturer literature and American Instrument Exchange product information.
Energy Efficiency & Operating Considerations
Chromatography refrigerators face a different operating challenge than refrigerators used strictly for sample storage because instruments operating inside the chamber can introduce additional heat. Maintaining adequate airflow around pumps, fraction collectors, and other components is important for both equipment cooling and refrigerator temperature performance.
Laboratories can improve operating efficiency by minimizing unnecessary door openings, maintaining adequate ventilation around the exterior of the refrigerator, keeping the condenser clean, and avoiding excessive internal equipment loads. The glass doors help users observe equipment and locate materials without repeatedly opening the chamber.
Refurbishment & Testing Process
Every Thermo Scientific chromatography refrigerator refurbished by American Instrument Exchange undergoes a comprehensive inspection before shipment. Our technicians inspect the refrigeration system, digital temperature controls, alarms, access ports, internal electrical receptacle, doors, gaskets, shelving, casters, and overall cabinet condition.
The refrigerator is thoroughly cleaned and operated under refrigerated conditions while cabinet temperature is monitored to verify dependable cooling performance. The internal electrical components and specialized chromatography features are also inspected so the unit is ready to support laboratory applications following installation.
Purchasing a refurbished chromatography refrigerator can provide substantial savings compared with purchasing new equipment while giving laboratories access to a purpose-built refrigerated environment for chromatography instrumentation.
Shipping & Installation Considerations
The MR49PA-GAEE-TS is a large refrigerator weighing more than 500 pounds, so laboratories should plan the delivery path before shipment. With exterior dimensions of approximately 52.7"W × 33"D × 81"H, loading docks, doorways, elevators, hallways, and final installation clearances should be verified before delivery.
The refrigerator requires 115V, 60Hz electrical service. Because chromatography refrigerators may have separate electrical requirements associated with the interior receptacle, the laboratory should verify the electrical configuration of the specific unit before installation.
After positioning the refrigerator, allow the cabinet to stabilize at the desired operating temperature before installing valuable samples or beginning temperature-sensitive chromatography procedures.
Related Laboratory Equipment
Chromatography laboratories frequently require centrifuges for clarification and sample preparation, ultra-low temperature freezers for long-term storage of proteins and biological samples, laboratory freezers and refrigerators for reagents and buffers, biosafety cabinets for aseptic sample handling, and incubators for upstream cell culture workflows. American Instrument Exchange offers refurbished equipment across these categories to support complete biotechnology and protein purification laboratories.
Frequently Asked Questions
What makes the MR49PA-GAEE-TS different from a standard laboratory refrigerator?
The MR49PA-GAEE-TS is specifically configured for chromatography applications. It includes side access ports and an interior electrical receptacle that allow chromatography instrumentation, tubing, cables, and other connections to operate within the refrigerated chamber. A conventional laboratory refrigerator is primarily designed for storage and typically does not provide these specialized instrumentation features.
What temperature range does the Thermo MR49PA-GAEE-TS provide?
The refrigerator operates from approximately 1°C to 12°C, with a factory setpoint near 4°C. This makes it suitable for many refrigerated chromatography and protein purification workflows.
Why are access ports important on a chromatography refrigerator?
Access ports allow tubing, cables, probes, and other connections to pass between equipment inside and outside the refrigerator without routing them through the door opening. This allows the doors to remain properly closed while chromatography equipment is operating.
Can an FPLC system be operated inside this refrigerator?
The large refrigerated chamber, interior electrical receptacle, access ports, and glass doors make the MR49PA-GAEE-TS well suited for many FPLC and protein purification configurations. The dimensions and electrical requirements of the specific chromatography system should be verified before installation.
Why does a chromatography refrigerator have glass doors?
Glass doors allow researchers to monitor instruments, fraction collectors, fluid levels, and ongoing purification procedures without opening the refrigerator. The sliding configuration also reduces the amount of aisle clearance required compared with large swinging doors.
How is a refurbished Thermo chromatography refrigerator tested before shipment?
American Instrument Exchange inspects the refrigeration system, controls, alarms, access ports, interior electrical components, doors, gaskets, shelving, and overall cabinet condition. The refrigerator is then operated and temperature monitored to verify dependable refrigerated performance before shipment.
Click Hereto see the Thermo chromatography refrigerator on the American Instrument Exchange YouTube channel.
Testing Procedures for Used and Refurbished Laboratory Refrigerators Ensure Temperature Stability and Cold Storage Accuracy
Used and refurbished laboratory refrigerators from American Instrument Exchange are thoroughly tested to ensure reliable cold storage performance, temperature accuracy, and compliance with laboratory safety and storage standards. Each unit undergoes a detailed inspection and functional verification to meet the requirements of clinical, pharmaceutical, research, and industrial labs.
Why Testing Used Laboratory Refrigerators Is Essential
Before a laboratory refrigerator is reintroduced into any laboratory setting, it must be carefully tested for:
• Temperature uniformity and stability
• Cooling system integrity and compressor function
• Door seal performance and insulation effectiveness
• Electrical safety and compliance with lab standards
Thorough testing minimizes the risk of temperature excursions, product loss, and system failures—especially critical for storing reagents, vaccines, biological samples, pharmaceuticals, and temperature-sensitive materials.
Our structured testing protocol ensures refurbished lab refrigerators deliver consistent, dependable performance across all makes and models.
Key Testing Procedures for Refurbished and Used Laboratory Refrigerators
1. Initial Visual Inspection
• Check exterior surfaces, hinges, and door gaskets for wear, corrosion, or damage
• Inspect power cords, plugs, and control panels for fraying or visible defects
• Verify that shelves, racks, and internal compartments are present and functional
2. Functional Testing
• Power on the refrigerator and verify that display screens, alarms, and controls function properly
• Test door latches and sealing mechanisms to ensure secure closure and insulation
• Run preliminary temperature cycles to observe startup behavior and cooling response
3. Temperature and Stability Testing
• Test internal temperature sensors and controllers using thermometers/probes
• Monitor temperature at multiple points within the chamber over an extended period
• Verify accuracy across user-defined setpoints (e.g., +4°C, +2°C to +8°C range)
4. Cooling System and Compressor Evaluation
• Test compressor startup, cycling, and operating noise levels
• Inspect condenser coils and fans for proper function and cleanliness
• Check refrigerant pressure (if applicable) and confirm there are no leaks or system inefficiencies
5. Electrical Safety and Compliance Checks
• Ensure all internal and external electrical components are properly grounded
• Perform insulation resistance and leakage current tests 6. Final Quality Assurance Checklist
• Run full operational tests over a 24-hour period
• Document temperature logs, control responsiveness, and system performance
• Complete a detailed service report
All refurbished laboratory refrigerators from American Instrument Exchange are backed by our rigorous testing standards and quality commitment. From vaccine storage to reagent preservation, you can count on consistent cold storage performance from day one.
Repair and Refurbishment Protocol for Used Laboratory Refrigerators Cold Storage Performance from American Instrument Exchange
At American Instrument Exchange, every used laboratory refrigerator we offer is subjected to a comprehensive repair and refurbishment protocol. Whether it’s a general-purpose lab refrigerator, pharmaceutical-grade unit, or undercounter model, our goal is to restore each system to peak performance—ensuring consistent temperature control and reliable to laboratory storage standards.
Why Choose a Refurbished Laboratory Refrigerator from American Instrument Exchange?
• Fully tested for cold storage accuracy and operational safety
• Backed by a warranty
• Cost-effective alternative to new refrigeration equipment
• Sustainably refurbished to reduce environmental impact
• Serviced by expert technicians with decades of laboratory equipment experience
Step-by-Step Refurbishment Protocol
Every laboratory refrigerator from American Instrument Exchange follows a detailed, multi-stage process to ensure top-tier performance and reliability:
1. Initial Intake & Inspection
• Visual inspection for dents, corrosion, or structural damage
• Mechanical check of door hinges, gaskets, seals, and internal components
• Documentation of missing parts or areas requiring repair or replacement
2. Cleaning and Decontamination
• Internal and external cleaning using non-abrasive, lab-safe cleaners
• Decontamination/cleaning of all surfaces to remove biological or chemical residues
• Thorough cleaning of shelving, drawers, and removable interior parts
3. Mechanical and Electrical Repairs
• Replacement or repair of worn mechanical parts (door latches, seals, hinges, etc.)
• Inspection and restoration of control interfaces, thermostats, sensors, and displays
• Evaluation of wiring, relays, fuses, and power supply components for safety and integrity
4. Refrigeration System and Compressor Evaluation
• Testing of compressor function, condenser coils, and evaporators
• Inspection for refrigerant leaks and pressure performance (if applicable)
• Verification of proper airflow, fan operation, and defrost cycles
5. Temperature and Performance Testing
• Testing of temperature sensors and control boards
• Verification of temperature stability and uniformity throughout the chamber
• Testing of multiple setpoints (e.g., +2°C to +8°C) over extended operating periods
6. Safety and Compliance Checks
• Inspection of grounding and electrical insulation per lab safety standards
• Testing of alarm systems (if applicable) for temperature excursions or power failure
7. Final Quality Control and Documentation
• Multi-day operational test under real-world conditions
• Final cleaning, inspection, and performance validation
• Detailed service report with temperature logs, repair notes, and certification of refurbishment
Trust the Experts at American Instrument Exchange
With over 50 years of industry experience, American Instrument Exchange is a leading provider of high-quality refurbished laboratory equipment. Our proven laboratory refrigerator refurbishment protocol ensures consistent, accurate cold storage—so you can safeguard your samples, reagents, and research materials with confidence.
Warranty Information
All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,
Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”
Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.
Return & Cancellation Policy
American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.
Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.
Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.
Ongoing and Extended Support Options
American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.
For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.
For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.
Yes, all equipment from American Instrument Exchange comes with a warranty. Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.
How do you test and recondition the equipment?
Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality. We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.
How do products ship from American Instrument Exchange?
We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.
Return and order cancellation policy
American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.
Are discounts available for educational or non-profit institutions, or for bulk purchases?
Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.
How does your price matching policy work?
We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.
Can I see the equipment in person before committing to a purchase?
Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.
1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.
Can I ship products that I purchased elsewhere to American Instrument for repair?
Yes – please see our repair services page for more information.
