Sanyo Twin Guard -86 Ultra Low Temperature Freezer Model MDF-U500VXC

Sanyo Twin Guard -86 Ultra Low Temperature Freezer Model MDF-U500VXC

**This freezer has been tested to specifications. We ran this freezer overnight at our facility and was able to reach a temperature of -80c. Unit has slight wear from normal use. Buyer can expect the same unit pictured and 30-day warranty. See photos for details.

The SANYO MDF-500VXC Twin Guard Series™ ultra-low freezer is designed for -86°C storage of high-value biologicals. Ideal for critical material storage in repositories, highly secure BSL4 labs, hospitals, clinics and medical research facilities. The Twin Guard Series™ introduces the concept of dual, independent, auto cascade refrigeration systems contained within a single cabinet.

• The innovative design utilizing two independent systems allows the unit to continue to run continuously at -65°C in the unlikely event of one compressor failure.
• The combination of additional refrigeration intelligently managed by intuitive microprocessor controls and integrated into SANYO’s patented V.I.P. PLUS™ vacuum panel cabinet make the most efficient use of available floor space.
• Twin Guard Series™ freezers significantly increase ultralow protection while minimizing energy costs through a unique EcoMode™ function. EcoMode™ optimizes power consumption by orchestrating run times for each refrigeration system in response to cooling demands.

The Safest Ultra-Low Freezer for Long-Term Storage of Ultra-Critical Biologicals
The SANYO Twin Guard Series™ satisfies the industry demand for safe, long-term storage for the most high-valued materials. Two, independent refrigeration systems, combined with optional liquid nitrogen or liquid CO2 back-up systems, offer a circle of protection unmatched in the marketplace. Developed for use with conventional inventory racks and boxes, the Twin Guard Series™ is ideal for storage of sensitive stem cells, embryos, cell lines, and other rare specimens.

Twin Guard Series™ -86 Dual°Cool™ Refrigeration System
The Twin Guard Series™ Ultra-Low Freezer avoids conventional cascade refrigeration technology by using two completely independent one-compressor, autocascade cooling systems, each capable of maintaining ultra-low temperatures.

• Each refrigeration circuit includes a closed-loop cold-wall evaporator configured in parallel to the other.
• Independent evaporators and cooling fans assure backup status at all times, eliminating system failure due to sub-component failure in conventional cascade systems configured of mutually dependent high- and low-stage systems.
• Either circuit will maintain -65°C. In the unlikely event of a compressor failure in one system the remaining system will automatically maintain a minimum of -65°C for an indefinite period.
• In the event of a facility power failure with optional CO2 or LN2 backup system installed, the freezer will maintain -65°C storage temperature for up to 8 hours (CO2 backup system) and -65°C storage temperature for up to 15 hours (LN2 backup system)
• A unique EcoMode™ deploys both systems in overlapping cycles to maintain -86°C and to reduce energy consumption by as much as 15%.
• Evaporator coils embedded in the patented, high-tech, SANYO V.I.P. PLUS™ vacuum-insulated thin-wall cabinet are strategically oriented to deliver the best temperature uniformity at all shelf levels, top-to-bottom and front-to-back.
• New SANYO designed Cool Safe™ refrigeration compressors feature innovative refrigerant feedback processes to reduce compressor temperature, thereby extending compressor life
  and minimizing heat output.

Features:

1. SANYO patented V.I.P. PLUS™ vacuum insulation panel cabinet construction for high insulating value and increased interior volume in the same footprint. The V.I.P.
   PLUS™ minimizes energy transfer to and from the ultralow temperature interior. The composite construction, complete with reflective barrier film and structural closed cell foam, is used on all walls and the outer door. This advanced insulation technology offers structural stability to eliminate distortion, and inhibits moisture accumulation that can lead to icing. Aggregate insulation efficiency minimizes compressor cycle run-time to lower energy costs.
2. Easy-In/Easy-Out™ door latch for smooth, one-handed operation, positive seal against gasket. Key lock provision standard.
3. Universal keyed door lock offers added security.
4. Integrated, microprocessor-based control system and LCD display information center includes comprehensive setpoint, alarm, monitoring, diagnostic and communications functions.
5. Circular-chart temperature recorder (optional) mounts easily in pre-engineered mounting space.
6. Insulated and gasketed inner doors seal inside to offer additional protection, improve uniformity. Inner door latches are standard.
7. New, air-cooled Super Condenser energy transfer technology maintains optimum condenser air flow and eliminates the need for an air filter or periodic cleaning and maintenance required by other manufacturers.
8. High impact, recessed casters and leveling feet simplify installation.
9. Seismic restraints secure cabinet to building superstructure to meet local codes.
10. New generation SANYO designed Cool Safe™ compressors are specifically designed for onecompressor, autocascade applications.
11. Twin Guard Series™ redundant refrigeration -86 Dual°Cool™ circuits offer two systems in one, each providing back-up for the other, or working together in EcoMode™ operation for additional energy savings.
12. Multiple access ports permit insertion of independent probes, instrumentation or liquid nitrogen or liquid CO2 back-up injectors.
13. CFC-refrigerants are highly efficient, environmentally safe, non-ozone depleting.
14. Internal voltage and power management systems assure component protection over wide voltage ranges.

Manufacturer's Specifications:

• Temperature Setpoint Range: -50°C to -86°C
• Design Cooling Performance: -86 Dual°Cool (both compressors) -86°C (ambient temperature 30ºC)
• Single System Cooling Performance (Indefinite): -65°C (ambient temperature 30ºC)
• Cabinet Insulation: Patented V.I.P. PLUS™ composite wall, energy savings
• Interior Dimensions: (W x F-B x H) 25.6” x 23.6” x 54.3” 650 x 600 x 1380mm
• Volume: 18.3 cu.ft./519 liters
• Shelves: 3, adjustable, stainless steel ( 4 compartments)
• Access Port: diameter = 0.5”/17mm; 3 locations
• Vacuum Release Port: Standard, manual
• Refrigeration Technique: SANYO -86 Dual°Cool independent, redundant cooling systems
  with automatic switchover
• Compressors: Per system: Single, hermetically-sealed 1100W SANYO Cool Safe compressor, air-cooled.
• Refrigerant: Environmentally safe HFC
• Air Exchange: Dual condenser fans with particulate trap; no filters are required
• Cycle Options: Standard or energy-saving EcoMode™ operation