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VWR Critical Storage -25C Undercounter Freezer, Cat. #: 89031-976
The VWR Critical Storage -25C Undercounter Freezer, Cat. #: 89031-976 is designed to meet the demanding standards of clinical, life science, pharmaceutical, biotechnology, and industrial applications. This freezer offers exceptional temperature control and uniformity via a door-mounted microprocessor controller and interior forced air circulation, which provides temperature control from -15°C to -25°C. A built-in front-breather condenser allows the freezer to be placed under benches or on countertops and requires no additional clearance from the top, back, or sides of the cabinet.
The VWR Critical Storage -25C Undercounter Freezer, Cat. #: 89031-976 is equipped with fixed evaporator shelves and features a right-hinged door swing and a rounded door profile and handle. The door can also be locked to ensure safe and secure storage. The easy-to-read controller features an upward angled LED display and keypad. This freezer also features multiple alarms for high/low temperature variance, temperature sensor errors, power failure, open door, and can be set up with remote alarm contacts.
All of our equipment is fully tested to perform at factory specifications before being shipped.
The VWR Critical Storage -25C Undercounter Freezer, Cat. #: 89031-976 includes:
- > 2 Shelves
- > Power Cord
- > Operator's Manual
- > Full 180 Day Parts and Labor Warranty
VWR Critical Storage -25C Undercounter Freezer, Cat. #: 89031-976 Specifications
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Temperature Range
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-15°C to -25°C
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Volume
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153L (5.4 cu. ft.)
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Refrigerant
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R134A
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Defrost Method
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Manual
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Temperature Controller
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Microprocessor with LED display
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Temperature Sensor
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Thermomistor
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Monitoring/Alarms
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High/low temperature alarm, sensor error alarm, open door alarm, power failure alarm, remote contacts
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Interior Material
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Foamed ABS
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Exterior Material
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Resin bonded galvanized steel
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Interior Dimensions (W x D x H)
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20.9 x 17.4 x 27.8 in. (53 x 44.1 x 70.6 cm)
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Exterior Dimensions (W x D x H)
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23.6 x 25.7 x 34.6 in. (60 x 65.2 x 88 cm)
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Weight
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117 lb. (53 kg.)
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Electrical Requirements
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120V, 60Hz, 1.3A
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- Inspect the display for pixel clarity and brightness, replacing any dim or dead pixels.
- Test all buttons for responsiveness, resistance, and durability; replace any that don’t meet standards.
- Check the door seal and lock for airtightness, replacing any compromised components.
- Run diagnostics on PCB test points for voltage and current accuracy, replacing faulty components.
- Verify compressor output and airflow, ensuring all internal fans function properly.
- Cross-check internal temperature probe accuracy with a NIST-traceable probe, recalibrating if needed.
- Inspect wiring for frays or tears, replacing compromised sections as necessary.
- Test the start capacitor's capacitance and replace if it’s outside the specified range.
- Replace all internal filters and thoroughly clean condenser fins for efficient heat dissipation.
- Verify the alarm battery holds a full charge and replace if there is any degradation.
- Operate the unit for 72 hours to confirm stable temperatures and operational consistency.
- Perform a final cosmetic check, repairing or touching up surfaces as needed for a professional appearance.
Technician Inspection and Recertification Checklist
The Following Checklist Is to Be Performed on All Incoming and Outgoing Equipment
| Task |
Completed? |
Remarks? |
| Inspect display for pixel issues and replace if needed | Completed | |
| Test button functionality and replace any defective buttons | Completed | |
| Examine door seal and lock functionality; replace if compromised | Completed | |
| Conduct PCB test point diagnostics and replace as needed | Completed | |
| Verify compressor and internal fan functionality | Completed | |
| Confirm temperature probe accuracy with NIST-traceable probe | Completed | |
| Inspect all wiring for frays, tears, or breakages | Completed | |
| Test start capacitor capacitance range; replace if needed | Completed | |
| Replace all internal filters and clean condenser fins | Completed | |
| Test alarm battery for full functionality | Completed | |
| Run 72-hour test with data recorder to confirm stable temperatures | Completed | |
| Conduct cosmetic inspection and address any issues | Completed | |
To View More of Our Recertification Protocol Click Here
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