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Blizzard HC NU-99420J -80 °C Ultralow Freezer — main photograph
NuAireAvailability: Supplied to order

Blizzard HC NU-99420J -80 °C Ultralow Freezer

Reference NU-99420J

Efficient and eco-friendly, the Blizzard Chest Freezer offers superior sample protection with HC refrigerants, steel construction, and easy-access ergonomic design.

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At a glance

Reference
NU-99420J
Category
Laboratory Refrigeration & Freezers
Product range
Blizzard HC

Overview

Discover efficiency and precision with the Blizzard Ultralow Temperature Chest Freezer, which is designed for optimal sample storage. Utilizing eco-friendly HC refrigerants for efficient cooling, this freezer features robust steel walls and composite insulation for unparalleled protection. Its ergonomic design ensures easy access, while the front-mounted electronic control panel offers clear visualization of operational parameters, including a USB port for comprehensive data logging. It is ideal for laboratories prioritizing environmental responsibility, user convenience, and data integrity.

Navigate easily using simple arrow keys and a set button. This user-friendly interface allows you to set a personalized access passcode, select your desired temperature set point, establish alarm limits, and customize various freezer preferences to suit your needs.

Stay informed and secure with our advanced alarm system. In any unusual circumstance, the panel promptly triggers audible and visual alerts, keeping you updated and allowing swift action.

Delve into your freezer's performance specifics with an array of indicator lights. These lights provide detailed information about the working condition of the freezer, any active alarms, and upcoming maintenance requirements, ensuring you are always in the know.

With a performance uniformity of +/- 5°C, our freezer provides consistently stable temperatures throughout its interior. This uniformity is crucial for the integrity of your sensitive materials, ensuring they are evenly cooled no matter where they are placed inside.

Precision is vital in scientific endeavors, and our freezer delivers with a temperature accuracy of +/-1°C. This level of accuracy gives you confidence that your samples are stored at the exact temperature needed for their preservation.

Our freezer is engineered for resilience. After a 1-minute door opening, it remarkably recovers to its optimal running condition at -75°C within 30 minutes. This feature minimizes thermal fluctuations, safeguarding your samples against temperature variations during routine access.

Features

  • User-Friendly Interface
  • Enhanced Safety with Smart Alarm System
  • Detailed Indicators for Comprehensive Monitoring
  • Unmatched Performance Uniformity
  • Exceptional Temperature Accuracy
  • Rapid Temperature Recovery

Technical specifications

Style
Chest
Alarms
Temperature, Power Failure, Probe Failure, Condenser, Ambient Temperature, Door Ajar, Low Battery, etc.
Casters
All-direction caster with fixing stand
Shelves
0
Fan Brand
EBM
Insulation
CFC Free Foaming Agent
Power Cord
Grounded Three Prong Power Plug, Rated 16A
Inner Doors
Three Solid Doors
Show 62 more specifications
Sound Level
49 dB(A)
Leg Levelers
Inquire
Power Switch
On-Off with Circuit Breaker
Exterior Door
Single Door
Rack Capacity
27
Condenser Type
Enhanced Micro-Channel & Forced-Air Cooled
Defrost Method
Manual
Shelf Material
Stainless Steel
Evaporator Type
Cold Wall With Enhanced Heat Transfer Treatment
Input Power (W)
1540
Exterior Material
Color Coating Cold Plate Steel
Interior Material
Stainless Steel
Locking Mechanism
Inquire
Rated Current (A)
7.5
Rated Voltage (V)
220
Setpoint Security
Yes
Exterior Door Seal
One Seal on the Outside Door
Stable Current (A)
7
2-inch Box Capacity
270
Net Weight
682 lb (310 kg)
Temperature Control
Microprocessor Controller
Access Port Location
Inquire
Data Output Features
USB, RS-232/485
Rated Frequency (Hz)
60
Temperature Range °C
-40 to -86
Auto Voltage Safeguard
Included
Remote Alarm Terminals
Remote Alarm Port, RS232 / RS485 (Optional)
Shelf Capacity
110 (50) per Shelf
Temperature Sensor Type
RTD (Pt100)
Compressor Capacity Watt
950
Electric Protection Type
Class I
Electrical Configuration
220V60Hz
Heat Rejected
1344 BTU/h
Temperature Accuracy
±1 °C
Ambient Temperature (°C)
10 to 32
Power Consumption KWh/day
12.5
Refrigeration System Type
Direct cooling
Door Thickness
3.14 in (80 mm)
Exterior Depth
34.3 in (870 mm)
Exterior Width
83.9 in (2130 mm)
Interior Depth
18.2 in (462 mm)
Interior Width
53.8 in (1367 mm)
Temperature Uniformity
±5 °C
Exterior Height
40.2 in (1020 mm)
Footprint Depth
34.3 in (870 mm)
Footprint Width
83.9 in (2130 mm)
Interior Height
25.7 in (652 mm)
Compressor Type/Brand/Number
Hermetic Reciprocating Type / SECOP / 2
Refrigerant Charge/Flammable
R290 in 1st Stage / R170 in 2nd Stage / Flammable
Cabinet Thickness
5.5 in (140 mm)
Est. Shipping Weight
787 lb (357 kg)
Power Cord Length
8.2 ft (2.5m)
Est. Shipping Depth
38 in (965 mm)
Est. Shipping Width
90 in (2286 mm)
Est. Shipping Height
45 in (1143 mm)
Back Up Battery for Alarm Functions
High/low temperature, power failure, door open, sensor failure, high ambient temperature, hot condenser, and low battery alarms
Interior Volume
14.8 ft³ (420 L)
Adjustable High/Low Temperature Alarms
True
Exterior Depth with Door Open
68.30 (1735) [Height with Door Open; Unit is Chest Model]
Cool Down Time (25°C ambient to -80°C) in Minutes
240
Warm-Up Time (25°C ambient -80°C to -50°C) in Minutes
150
1 Minutes Door Open Recovery Time (25°C ambient running temp -75°C) in Minutes
30
Service coverage

AxiTech maintains, repairs and supplies this equipment for hospitals, clinics, laboratories and imaging centres.

Maintenance contracts for NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer

A service visit on the NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer covers temperature verification against a calibrated probe, alarm and back-up tests, condenser cleaning, door gaskets and hinges, and the performance of the refrigeration system.

Every visit includes calibration and performance verification, and closes with a documented maintenance report you can present during an accreditation audit. Spare-parts availability and a guaranteed response time are written into the contract, so a breakdown never leaves a department waiting for an answer.

Laboratory refrigerators and freezers like the NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer should have their temperature and alarms verified at least once a year; ultra-low freezers benefit from a six-monthly condenser clean and gasket check.

  • Temperature verified against a calibrated reference probe
  • High, low and power-failure alarms tested
  • Condenser and filters cleaned, door gaskets and hinges checked
  • Compressor and refrigeration performance assessed

Discover our maintenance contracts

Planned preventive maintenance and calibration under contract

Troubleshooting and repair for NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer

When NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer fails, our engineers start with a structured diagnostic: error codes, electrical and mechanical checks, and a functional test against the equipment’s own specification. That tells us whether the fault is a consumable, a worn part or a board-level failure before any part is ordered.

Straightforward faults are repaired on site so the department loses as little time as possible. Anything that needs a workbench, a full strip-down or a specialised spare part goes to our workshop and comes back only after a complete post-repair test and, where the equipment requires it, recalibration.

Faults we see most often on this type of equipment

On refrigerated storage the usual faults are clogged condenser filters, worn door gaskets and ice build-up, alarm or probe failures, and compressors that run continuously because the system has lost refrigerant or airflow.

Discover our troubleshooting and repair service

Diagnostics, corrective repair and spare parts in the workshop
Troubleshooting

How to troubleshoot NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer

Work through these checks before you escalate. They are the same first-line sequence our biomedical engineers run on arrival, and they either clear the fault or narrow it down enough that the intervention starts with the right spare part in the van.

  1. Capture the fault before you touch anything: write down the exact error code or message, the serial number from the rating plate, what the operator was doing and whether the fault clears on a restart.

  2. Check that the door closes and seals fully, and clear ice from the gaskets and door frame — a poor seal is the most common reason a unit cannot hold temperature.

  3. Clean or check the condenser filter and make sure the unit has the clearance around its vents that the manual specifies.

  4. Compare the display with an independent thermometer and check the alarm history for recent power interruptions.

  5. If the fault is still there, escalate with the evidence. Send AxiTech the model, serial number, error code and the checks you have already run, and an engineer will come back with a diagnosis, a repair quote and a spare-parts lead time for NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer.

What to send us when you report the fault

  • Manufacturer, model and serial number, from the rating plate
  • The exact error code or message, and the screen it appears on
  • When the fault started, how often it occurs and what triggers it
  • A photograph of the display or of the fault, and the last maintenance report

If the fault survives all five steps, stop using NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer and open a repair request. Continuing to run equipment through a fault it cannot clear turns a component failure into a board-level one, and on devices used for diagnosis or therapy it puts the result — and the patient — in doubt.

Discover our troubleshooting and repair service

Buying and installing NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer

AxiTech supplies NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer together with the accessories and consumables it needs to enter service. We handle importation, delivery and installation, then commission the equipment on site so that it is verified against its specification before the first patient or the first sample.

Installation is followed by training for the users and for your biomedical team, warranty registration, and — if you want it — a maintenance contract that takes over the day the warranty ends, so the equipment never spends a period without planned service.

Discover our equipment sales service

Delivery, installation, commissioning and user training
Product FAQ

Questions about the NuAire Blizzard HC NU-99420J -80 °C Ultralow Freezer

Efficient and eco-friendly, the Blizzard Chest Freezer offers superior sample protection with HC refrigerants, steel construction, and easy-access ergonomic design.

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