VIP ECO Natural Refrigerant -86°C Freezer


Effective capacity
18.6 cu.ft. | 528 L
Cooling Performance
-40°C to -86°C

VIP Freezer Series Features

Purpose-Built Cold Chain Storage

PHCbi brand ultra-low temperature (ULT) VIP® ECO freezers are engineered from the inside out to create, maintain, and restore precise temperatures. Our purpose-built ultra-low temperature freezers achieve and maintain temperature uniformity and stability not commonly found with household or commercial cabinets.

The MDF-DU502VH-PA provides reliable temperatures as low as -80°C. The MDF-DU502VH-PA is part of the VIP ECO Series of ultra-low temperature freezers. PHCbi brand VIP ECO Series ULTs have earned a worldwide reputation for dependable performance in demanding environments where critical materials must be preserved for generations.

The VIP Laboratory Freezer Series

The PHCbi VIP ultra-low temperature laboratory freezers represent the complete combination of refrigeration, control, alarm configuration, monitoring, and accessibility for product safety at -86°C. Well-known for its reliability, energy savings, and performance, the VIP Series is ideal for material storage in biorepositories, R&D pharmaceutical and biotech companies, contract research organizations, hospitals, clinics, and medical research facilities.

The VIP ECO Freezers and Sustainability

PHCbi VIP ECO ultra-low temperature freezers operating on natural refrigerants now deliver more energy efficient and dependable ultra-low temperature storage with forward performing cooling systems. New natural refrigerants minimize environmental impact without compromising ultra-low temperature performance. These freezers are designed, tested, and field-proven for safe, reliable storage of biologicals.  

ENERGY STAR® Certified1

ENERGY STAR Certified and independently tested by a nationally recognized testing laboratory.

  • • 0.35 kWh/cu.ft. Daily Energy Consumption
1) Results are published on the ENERGY STAR website See PHC Corporation of North America's ENERGY STAR Unique ID 2318826.
VIP Series Ultra-Low Temperature Freezers can be used to store the following types of biological samples:

1. Temperature-sensitive samples such as therapeutics and biospecimens
2. Samples that need to retain viability, such as stem cells, genetically engineered tissues, organs, vaccines, or cancer cells
3. Critical medical research samples
4. Re-engineered immunotherapy samples, such as CAR-T cells or CAR-NK cells
5. Valuable pharmaceutical products
6. Clinical trial samples
7. Pathogenic samples within high security laboratories


PHC Corporation of North America offers a 5-year parts and labor warranty protection on VIP Series ultra-low temperature freezers purchased in North America.

Explore the VIP Freezer Series

Learn More About the VIP ECO Series





The PHCbi VIP ECO 18.6 cu.ft. (528 L) -86°C upright freezer with natural refrigerants delivers energy efficient performance with the reliability you demand. Secure your most valuable biological samples while contributing to environmental sustainability.

Performance and Reliability

Reliable Cooling and Temperature Performance

The robust refrigeration system provides dependable cooling and temperature performance through the PHC engineered heat transfer components and time tested natural refrigerants. Reserve refrigeration power assures exceptionally fast temperature recovery following door openings. Performance and reliability are never compromised when it comes to storing your valued samples.

As interior air temperature stabilizes at the desired setpoint, mass storage volume sustains tight temperature uniformity of the load inside the insulated cabinet.
Energy Efficient, Balanced Power

Smart compressors, natural refrigerants and integrated electronics combine to lower your facility’s operating costs. Freezer operation is managed by the practical balance of temperature performance and energy management.

Cascade Reliability

The PHCbi cascade refrigeration platform is based on high-performance compressors designed by PHC specifically for ultra-low temperature applications. The PHCbi cascade system is used on VIP Series upright freezers for temperature storage preferences within a range of -50°C to -86°C. These ULT lab freezers use two compressors in a cascade sequence. Both systems work together, running on uniquely designed refrigeration compressors designed to cool themselves as they operate to achieve ultra-low temperatures.

Compressor Reliability Download


Ergonomic Design

Opening the door of an ultra-low temperature freezer is not an insignificant event. Due to extreme temperature differentials, users should know the location of stored product inside the freezer to minimize the duration of the door opening. Best practices lead to better chamber uniformity, faster recovery of setpoint temperature and overall longer freezer life as a result of reduced strain.

The PHCbi Advanced Frost Control System

The Advanced Frost Control System is a combination of nine individually engineered components, designed to work together to minimize frost, protect contents and extend freezer life.


The VIP ECO cabinet features are the same as the TwinGuard freezer shown here, Model MDF-DU702VXC-PA. This image shows one additional shelf to create five levels. This freezer model is equipped with three standard shelves.

The PHCbi Advanced Frost Control System is standard on the following VIP ECO and TwinGuard freezers.

1. The Outer Door

The outer door is insulated and mounted on heavy duty oval fastened hinges to permit adjustment throughout the life of the freeer.

2. EZlatch Door Handle

The patent pending PHCbi door handle spans an arc of 45 degrees in total movement for easy operation. The EZlatch is included as a standard feature on the PHCbi VIP ECO -86°C / -80°C Laboratory Freezer Series.

The EZLatch is standard on all VIP ECO Series upright ultra-low temperature freezers.
3. Security

The EZlatch includes an integral lock and a provision for a secondary padlock to restrict access.

4. Mullion Heater

Refrigeration system heat output is diverted to the non-temperature conduction extrusion to resist heat moisture accumulation which can cause frost and ice build-up.

5. Air Space

The outer door design minimizes trapped ambient air between the outer door and inner doors.

6. Inner Doors

Insulated inner doors with gaskets minimize cold air loss during door openings.

7. Heat Breaks

To minimize frost and protect the cabinet seal, all materials at the door/cabinet interface are engineered to reduce passive heat transmission from the outside to the inside and to diminish cold surfaces in contact with moist, ambient air.

8. Removable Gaskets

Multi-point door gaskets create micro air breaks around the face of the cabinet, restricting moisture migration into the cabinet and minimizing frost. Gasket composition withstands extreme relative temperature differentials while remaining flexible, ensuring a full peripheral door seal. The outer door gasket can be easily removed and replaced without tools while the freezer can remain in operation with no downtime.

9. Vacuum Relief

The automatic vacuum relief port equalizes pressure and permits the outer door to be opened easily for quick re-entry.

Advanced Frost Control Download

Security Control and Monitoring

Full Color LCD Touchscreen

An eye level, door mounted, color LCD touchscreen allows full user control while the USB port makes transferring logged data to a PC convenient. All performance attributes are displayed, plus an internal time/temperature log is expressed in graphic form.

Fully functional display panel includes audible and visual warnings, unit diagnostics, temperature and door opening history.

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VIP Series Products

VIP ECO Products

Product Photos


EXTERNAL DIMENSIONS 31.1" W x 34.7" D x 78.5" H (790 x 882 x 1993 mm)1
INTERNAL DIMENSIONS 24.8" W x 23.6" D x 55.1" H (630 x 600 x 1400 mm)
EFFECTIVE CAPACITY 18.6 cu.ft. (528 L)
INTERNAL DOORS 2 (insulated, ABS, stainless steel frames, positive latches)
INSULATION Foamed-in-place and VIP Plus vacuum insulated panels: 3.1 in (80 mm)
SHELVES 3 shelves (adjustable); Inner dimensions: 24.2" W x 21.0" D (615 x 534 mm); Load: 110 lbs. (50 kg) per shelf
ACCESS PORT 3; upper back wall (back-up system), bottom left (recorder sensor), bottom right (access); Inner diameter: 0.6 in (17 mm)
NET WEIGHT 542 lbs (246 kg)
COMPRESSOR (2) 750 W, variable speed
REFRIGERANT High-stage R-290 natural refrigerant, Low-stage R-170 natural refrigerant
TEMPERATURE CONTROL RANGE -40°C to -86°C in 1° increments2
ALARMS Power failure, high temperature, low temperature, sensor failure, filter alarm, door ajar, remote alarm, battery life, fan motor life, fan lock, cooling circuit abnormality
COOLING PERFORMANCE -86°C center of chamber2
TEMPERATURE CONTROL SYSTEM Microprocessor, LCD color touchscreen data entry, password protected
AREA FOOTPRINT 7.49 ft2 (0.70 m2)
DATA MANAGEMENT Optional with LabAlert® Monitoring System
SOUND LEVEL 46 dB[A] (background noise 20 dB[A])3

1) Exterior dimensions of main cabinet only, excluding handle and other external projections. Cabinet depths of most PHCbi brand ultra-low freezers are designed to fit through standard interior doorways of 38" (965 mm) when rear stand-off brackets are removed by extracting four standard screws. Stand-off bracket removal is not required for 40" (1016 mm) doorways. Please confirm dimensions as part of your advance site preparation. Contact us for assistance.
2) Air temperature measured at freezer center, ambient temperature +30°C, no load.
3) Actual value, background noise 20 dB[A]

Five Years Parts and Labor Warranty is available on model MDF-DU502VH-PA.
Model MDF-DU502VH-PA operates with a power supply of 220V.

Specifications are subject to change without notice. For latest specification
information contact PHC Corporation of North America at


MDF-DU502VH-PA Price Upon Inquiry. Please contact PHC Corporation of North America at or Toll Free USA (800) 858-8442.


Technical & Educational Resources