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A large, commercial white double-door refrigerator with vertical handles, a digital display at the top center, ventilation grilles at the bottom, and small wheels. The brand ABS and American BioTech Supply are labeled on the upper left. A large, white commercial refrigerator with sliding glass doors, five adjustable wire shelves, a digital temperature display, ventilation grilles at the bottom, and caster wheels. The right door is partly open, showing the empty interior.
A large, commercial white double-door refrigerator with vertical handles, a digital display at the top center, ventilation grilles at the bottom, and small wheels. The brand ABS and American BioTech Supply are labeled on the upper left.
A large, white commercial refrigerator with sliding glass doors, five adjustable wire shelves, a digital temperature display, ventilation grilles at the bottom, and caster wheels. The right door is partly open, showing the empty interior.
ABT-VS-49S DataSheet Manual 26147- Upright VSC Refrigerator Lab Pharmacy 10-31-2025

49 Cu. Ft. Premier Solid Door Laboratory Refrigerator with Variable Speed Compressor

Product Number: ABT-VS-49S ★ NEW PRODUCT
ALSO AVAILABLE IN THESE SIZES12 16 23 26 36 72 CU. FT.
FAST TRACKINVENTORY
Fast Track Inventory — 5–8 business day lead time

These premier laboratory refrigerators are engineered with variable speed technology for exceptional efficiency and performance in clinical and research environments. They feature precise microprocessor temperature control and variable speed compressor technology. Enjoy low energy consumption and natural hydrocarbon refrigerants for cost-savings and energy efficiency. Security and monitoring features include keyed door locks and comprehensive alarms with remote alarm contacts. The cabinet is built with durable powder-coated steel, self-closing solid doors, safety-shielded LED lighting, and adjustable interior shelving to enhance your workflow. This model delivers optimal temperature stability and includes a 2-year parts and labor warranty with a generous 7-year warranty on the compressor. These premier refrigerators are designed to increase performance and efficiency in your lab.

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Here are common questions and answers about this product

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What temperature range can I set on this refrigerator?

The adjustable temperature range is 2° C to 15° C. The microprocessor controller is C°/F° switchable with a resolution of 0.1° C/0.2° F.

Temp Controller tab
What alarms does it have?

It has audible and visual high/low temperature alarms, remote alarm contacts, a sensor error alarm, a power failure alarm, and a door ajar alarm. A battery backup powers the controller temperature display and alarms only, with no active cooling.

Temp Controller tab
How much clearance does the unit need around it?

It requires a minimum 2" of clearance around the back and sides for proper ventilation, and more if next to heat rejecting equipment. Improper installation will void the warranty and can lead to temperature maintenance issues, overheating, and possible failure.

Temp Controller tab
What are the electrical requirements and amperage?

The unit is rated at 3 Amps and uses a NEMA 5-15 plug. The facility must provide 110–120V AC with a 15A breaker and a NEMA 5-15 receptacle.

Description tab
What refrigerant does it use and what type of defrost?

It uses EPA SNAP compliant R600a Isobutane, a natural hydrocarbon refrigerant, with a hermetic variable speed compressor. Defrost is cycle defrost.

Performance tab
What is the warranty on this refrigerator?

It carries a two (2) year parts and labor warranty, plus a seven (7) year compressor warranty.

Description tab
What is a Variable Speed Compressor (VSC)?

A variable speed compressor (VSC) self-adjusts to cooling demand instead of running at one fixed speed, giving greater efficiency and more cost savings than a traditional fixed-speed model. On this unit it works alongside the microprocessor temperature controller, which provides the precise temperature control.

American Biotech Supply
Answers come from this product's record and datasheet. Settings and procedures come from the owner's manual.

Product details for the ABT-VS-49S

The description, performance figures and controller details, straight from the datasheet.

Need the full datasheet? Use View / Print Product Information above.
Description
Storage capacity (cu. ft)
49 Cu. Ft.
Door
Two (2) swing solid doors, self-closing, one right hinged, one left hinged, magnetic door gasket
Shelves
Eight (8) adjustable shelves (adjustable in ½” increments)
Mounting and Installation
Swivel casters – locking front casters
External probe access
3/4″ probe access port on rear wall
Insulation
Cabinet is foamed-in-place with EPA compliant high-density urethane foam
Interior lighting
LED interior lights are safety shielded and switch controlled
Airflow Management
Forced draft air circulation, patented air flow technology
Exterior materials
Cabinet is foamed-in-place with EPA compliant high-density urethane foam
Access control
Keyed door locks
General warranty
Two (2) year parts and labor warranty
Compressor warranty
Seven (7) year compressor warranty
Product Weight (lbs)
432
Shipping Weight (lbs)
462
Rated Amperage
3 Amps
Power Plug/Power Cord
NEMA 5-15 plug
Facility Electrical Requirement
110 – 120V AC, 15A breaker, NEMA 5-15 receptacle
Agency Listing and Certification
ETL, C-ETL listed.
Maximum temperature variation (Cabinet air)
+/- 1.5° C
Stability (Simulator ballast)
+/- 0.3° C
Energy Consumption (kWh/day)
<2.2 KWh/day
Average Heat Rejection (BTU/hr)
<570 BTU/h
Pull down time to nominal operating temp
< 40 min (empty)
Noise Pressure Level (dBA)
40 dBA or less installed
Compressor
Hermetic, variable speed
Refrigerant
EPA SNAP compliant R600a Isobutane (Hydrocarbon natural refrigerant)
Condenser
Tube and grid, high efficiency fan forced air
Evaporator
Fin and tube, high efficiency fan forced air
Defrost
Cycle Defrost
Performance Notes
Max temperature variation based on an empty chamber at steady state using 15 bare (unweighted) thermocouple probes.  Product loading, door openings, and ambient conditions will affect performance.  Stability of simulator ballast based on bottle probe provided with the unit located center of empty chamber at steady state, no door openings
Controller technology
Microprocessor temperature controller with variable frequency compressor control, C°/F° switchable, resolution is 0.1° C/0.2° F
Battery Backup
For controller temperature display and alarms only, no cooling active
Display technology
 Digital temperature display
Adjustable Temperature Range
2° C to 15° C
Digital Communication
Non-applicable
External alarm connection
Remote alarm contacts
Alarms
Audible and visual high/low temperature alarms, remote alarm contacts, sensor error alarm, power failure alarm, door ajar alarm
Display Probe
Product simulator bottle with glass bead media
Disclaimers
Refrigerator requires a minimum 2” of clearance around back and sides of the unit for proper ventilation (more if next to heat rejecting equipment) – improper installation will void the warranty and will lead to temperature maintenance issues, overheating and possible failure

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