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Hitachi

Hitachi in Oceania

RX730GAX
788Ltr Mirror Glass finish with 4 STAR Energy Star Rating

RX730GAX

Made in Japan French Door Series Refrigerator

  • 5 Year Warranty | 10 Year Compressor Parts Warranty
  • Vacuum Compartment with Platinum Catalyst
  • Delicious Freezing
  • Auto Doors (Slide or Touch)
  • Auto Open Drawers (Lower Freezer Compartment and Vegetable Compartment)
  • Aero-Care Vegetable Compartment with Platinum Catalyst
  • Hitachi Original Flexible Vacuum Insulation Panel for large capacity and energy-saving performance
  • Frost Recycling Cooling Technology
  • Multiple storage compartments for Fresh and Frozen Foods
  • Auto Ice Maker
  • Scratch-Resistant Tempered Glass Door
  • Triple Power Deodorisation
  • Touch Screen Controller
  • Available Colour :
    Crystal Mirror Mirror
  • Dimensions 1833(h) x 880(w) x 738(d) mm | 788L

Note: The colours produced within this web site may not accurately represent the actual colours of our finished products. We always recommend viewing a finished product prior to purchasing.

Features

Vacuum Compartment

Vacuum Compartment

Introducing Vacuum Preservation technology with Platinum Power Catalyst to keep food fresh for longer.

Approx. 0.8atm, Platinum Catalyst

Platinum Catalyst

Odor components that come into contact with the catalyst are broken down into carbon dioxide and water.

Odor Components, Ethylene Gas, Water, Carbon Dioxide, Platinum Catalyst

*Image is for illustrative purposes only.

*Vacuum means the space where the pressure is lower than the atmospheric pressure. The pressure in the Vacuum Compartment is about 0.8atm, which is lower than the atmosphere pressure, so Hitachi calls such a state as vacuum.

Prevent Dehydration of Stored Food

Hitachi’s uniquely designed Vacuum Preservation can achieve approximately 0.8atm capabilities through the use of a vacuum pump to extract air and reduce oxygen, suppressing oxidation, thus ensuring freshness of food while retaining its nutrients. Furthermore, the airtight structure of the compartment confines moisture inside, thus helping to prevent dehydration of stored food.

Freshness Preservation with New Platinum Catalyst

Odor components from meat and fish are broken down by the Platinum Catalyst to generate carbon dioxide. The carbon dioxide dissolves in water on the surface of food items to make the surface weakly acidic, which suppresses enzyme strength to minimize loss of freshness.

Platinum Catalyst, Resolve, Odor, Carbon Dioxide, Water Molecule

Carbon Dioxide, Water

2 Temperature Zones

Selecting the Vacuum Sub Zero mode for items such as meat, fish and processed food, and the Vacuum Chilled mode setting for items such as vegetables and tofu let you store food without freezing them. This helps to prevent deterioration of flavor and texture due to freezing.

Approx. -1°C Vacuum Sub Zero Mode

Approx. +1°C Vacuum Chiller Mode

Freshness After Storing for 3 Days

*K-value of Chicken Breast

Approx. 5% Less

*K-value of Horse Mackeral

Approx. 3% Less

*K-value of Tuna

Approx. 1% Less

Nutrients After Storing for 3 Days

Vitamin E in Yellowtail

Approx. 8% More

DHA in Mackerel

Approx. 29% More

EPA in Sardines

Approx. 18% More

Tested by Hitachi. Comparison of storage in the new R-X7300F (equivalent to R-F7300XS) Vacuum Compartment (Vacuum Sub Zero mode) and the Refrigerator Compartment.

*K-value is an indication of freshness.

Quick Seasoning

The vacuum compartment removes air from stored food, allowing the seasoning to be absorbed at a faster rate* so that less time is required in food preparation.

Refrigerator
Compartment

Vacuum
Compartment

Radish with 10mm diameter, soaked for 3 hours. Red dye is used to show the permeation rate of the seasoning liquid.

*Tested by Hitachi. Tested using R-G6700D(functions equivalent to R-E6800X).

Reduces Dehydration in Food

Drying of stored items is reduced. Now you can store opened items and dishes you want to store for a while without the need for troublesome wrapping.

Sliced Ham (After 24 Hours)

Refrigerator Compartment
Edges are dried and curled up.

Vacuum Compartment
Drying has been reduced.

Sliced Cheese (After 24 Hours)

Refrigerator Compartment
Dried and dark yellow.

Vacuum Compartment
Still moist up to the edges.

Aero-care Vege Compartment

Aero-care Vege Compartment

Platinum Catalyst

The Power of Platinum for Vegetables and Fruits

Uniquely designed to maintain freshness and nutrients in vegetables, the Aero-care Vege Compartment puts food under the power of a Platinum Catalyst, producing increased carbon dioxide to control respiration of vegetables and limiting the consumption of nutrients in the environment to prevent loss of freshness.
In addition, the improved airtight seal of the compartment increases humidity, with the Humidity Control unit also releasing excess moisture, vegetables remain in optimal condition, further ensuring they retain their freshness and nutrients.

Platinum Catalyst

Odor components that come into contact with the catalyst are broken down into carbon dioxide and water.

Odor Components, Ethylene Gas, Water, Carbon Dioxide, Resolve, Platinum Catalyst

*Image is for illustrative purposes only.

As a Result of Joint Research by Hokkaido University and Hitachi

Highly efficient even at low temperatures, the Platinum Catalyst developed by Hokkaido University breaks down ethylene and odor components inside the refrigerator into carbon dioxide. By maintaining a higher concentration of carbon dioxide than that in the air, Platinum preservation suppresses respiration of vegetables, and the action of enzymes on the surface of meat and fish to retain freshness and nutrients.

Professor Atsushi Fukuoka,
Catalysis Research Center,
Hokkaido University

High Moisture Storage in Vegetable Compartment

Carbon Dioxide + High Humidity

Close the door and the moisture cover acts as a lid over the entire vegetable compartment for improved sealing. Carbon dioxide concentration increases while moisture is kept in, helping to prevent drying. Excess moisture is released outside the case by the moisture unit to maintain the optimum amount of moisture and prevent condensation.

Moisture Cover, Humidity Control Unit

*Image is for illustrative purposes only.

Sustain Freshness and Nutrients with Platinum Catalyst (After Storing for 7 Days)

Japanese Mustard Spinach

Approx. 96% Moisture Retention*

Moist Vegetable Compartment

Approx. 97.6% Improved Moisture Retention*

Aero-care Vege Compartment

Orange [Sliced]

Approx. 96.3% Improved Moisture Retention*

Freshness is retained and skin is thick and moist.

Beefsteak Plant

Approx. 75.2% Improved Moisture Retention*

Vitamin EApprox. 6% Improved Freshness Retention*

Initial Value:100% (2.6mg/100g), Moist Vegetable Compartment, Aero-care Vege Compartment

Salad Leaves

Approx. 95.2% Improved Moisture Retention*

PolyphenolApprox. 10% Improved Freshness Retention*

Initial Value:100% (20mg/100g), Moist Vegetable Compartment, Aero-care Vege Compartment

Mulukhiya (Jute Leaf)

Approx. 88.9% Improved Moisture Retention*

Vitamin B1Approx. 13% Improved Freshness Retention*

Initial Value:100% (0.22mg/100g), Moist Vegetable Compartment, Aero-care Vege Compartment

Asparagus

Approx. 94% Improved Moisture Retention*

Vitamin CApprox. 13% Improved Freshness Retention*

Initial Value:100% (36.8mg/100g), Moist Vegetable Compartment, Aero-care Vege Compartment

*Tested by Hitachi. Comparison of the Aero-care Vege Compartment in the new R-X7300F (equivalent to R-F7300XS) and the Moist Vegetable Compartment (without Platinum Preservation) in the R-G6700D from 2 years ago.

Energy Saving

Energy Saving

A range of technologies such as frost recycling cooling and vacuum insulation panels, new technologies such as multi-valve control have been added to further ensure energy-saving performance.

Hitachi Original Flexible Vacuum Insulation Panel (VIP)

Large Capacity and Energy Saving

Using the conventional insulation material of urethane foam together with highly efficient vacuum insulation panels enables both large capacity and energy-saving performance.

Outer Bag, Inner Bag, Glass Wool, Glass Fiber about 4µm

*The location, shape and number of vacuum insulation panels differs depending on the model.

Hitachi Original Frost Recycling Cooling Technology

Effective Use of Frost for Cooling

When the compressor isn't operating, frost formed in the condenser when it was operating is used to cool the refrigerator and vegetable compartments. Frost results in energy consumption, but this is reduced by defrosting with heaters. Cooling with frost in the condenser is based on the same principle as cooling with ice.

*Image is for illustrative purposes only.

Regular Cooling, Frost Recycling Cooling

Hybrid Defrost

In Frost Recycling Cooling with Hybrid Defrost, chilled air generated by frost is recycled by being sent to the Refrigerator and Vegetable compartments to cool them even when the compressor is not running. Two heaters are used to defrost, thus speeding up the defrosting process. Through this system, energy consumption is reduced.

Cooling Fan, Evaporator, Cord Heater, Heater

Convenient Eco
Intelligent Control

Convenient Eco Intelligent Control

Cuts power consumption by about 10 – 12% compared to that during regular operation.
(Room temperature of 15°C – 30°C)*

Save Mode

1LED Lighting (Inside the Refrigerator)

Lighting dims when the door has been left open for 30 seconds, to prompt the user to quickly shut the door.

2Controlled Compressor Operation

Lowers the rotation speed of the compressor.

Door Alarm

The alarm sounds when door has been left open for 30 seconds. In normal mode, alarm only sounds when door has been open for 1 minute.

Temperature (in Each Compartment)

Slowly cools the compartment without affecting food preservation.

Indications for Smart Use

ecoOperation Sign

This lights when operation is comparatively stable. It goes out when there is a heavy load on the refrigerator such as during rapid freezing.

*Tested by Hitachi. With the R-X7300F.

Shelves and Pockets with
Adjustable Height

Shelves and Pockets with Adjustable Height

1Pocket with Adjustable Height
2Movable Egg Case
3Tempered Glass Shelves
4Height Adjustable Shelves

Adjustable Tempered Glass Shelves

The heights of 1st and 2nd shelves from the top can be adjusted to match your needs.

Height Around 155cm from the ground. You can easily reach the top shelf.

*When you set the height of the top shelf to the center portion
(three levels)

Large pots and tall bottles can be stored by changing the layout of height adjustable shelves.

Pocket with Adjustable Height

Height can be adjusted to two levels depending on the size of the food items.

Freezer Compartment Large Storage Capacity

Freezer Compartment

Large Storage Capacity, Upper Freezer Compartment, Lower Freezer Compartment, Vertical Storage Space

Upper Freezer Compartment

Use as a space for rapid freezing of items. Can also be used for storage.

Lower Freezer Compartment

1st level

For small and thin food items

2nd level

For small items in airtight boxes and freezer bags

3rd level

For large frozen items

With Aluminum Tray, Approx. 45cm Deep, Store Large Pizza Whole

Vertical Storage Space

Use to store tall items vertically.

Large Storage Capacity

Large capacity ready to hold about 5.4 shopping baskets of food.

The measurements and rated capacities are based on the R-F7300XS using a 22L capacity basket.

Quick Freezing

Quick Freezing

During Quick Freezing, chilled air is sent to the freezer compartment to freeze items at a rapid rate. By placing food on the Aluminum Tray, food chills faster due to quick conductivity of the metal.

Temperature -1°C -5°C -18°C

By quickly going past the maximum ice crystal formation zone where moisture in food items freezes, the growth of ice crystals will be inhibited. Damage to food cells is prevented, reducing the dripping during defrosting.

Comparison of Dripping After Thawing

Beef

Minimal dripping of meat juices after thawing

Quick Freezing

Conventional

Drip from meat is under control

Visible dripping from meat

Cross-Section of Bamboo Shoots

Easy freezing of bamboo shoots that are usually difficult to freeze

Quick Freezing

Conventional

Almost no sign of cavities

Cavities are visible

Hitachi Original
Auto Doors & Drawers

Hitachi Original Auto Doors & Drawers

Auto Doors

One Door Opens with a Touch

The door on the side you touched opens

Slide Your Finger and Both Doors Open

The door on the first side you touched opens

The door on other side automatically opens

Auto Drawers

(Lower Freezer Compartment / Vegetable Compartment)

The auto drawers slide out effortlessly with just one touch, even when they are fully loaded.

Automatic Ice-Maker
Compartment

Automatic Ice-Maker Compartment

Water Filter, Pump, Pipe, Removable Ice Tray for Easy Cleaning

Tank Type Automatic Ice-Maker

You can enjoy clean ice anytime from bottled water that goes through the water filter. No troublesome plumbing is required, as the unit does not need to be connected to a tap. The water pump and pipe are maintenance free.

Able to Use Mineral Water*1

Removable Ice Tray

Easy cleaning with water

*1Recommended to use water with a hardness level below 100mg/L. If you use mineral water, white suspended solids will be mixed in the ice. However, this would not affect the water’s drinkability since the minerals are trapped in the ice.

Quick Ice-Making

With the Quick Ice-Making function, it only takes 80 minutes*2 for ice cubes to form as compared with conventional ice-making at 120 minutes.

*2Tested by Hitachi. Time taken to make ice once (12 cubes) without opening the door based on room temperature outside the refrigerator being 30°C.

Small Item Storage Space

With a transparent lid for easy identification for neat storage of small items such as ice cream.

Touch Screen Controller

Touch Screen Controller

Usually, the refrigerator projects a refined appearance with no visible control panel. Touch the MENU button and the control panel display appears on the flat surface of the door, so you can control your settings without having to open the door.

Scratch-Resistant Crystal Doors

Tempered glass that's scratch-resistant and easy to wipe clean is used for the doors.

Tech Spec

Net Capacity [L]
Standard (ISO) : 788L
Refrigerator Compartment : 348L
Vegetable Compartment : 140L
Ice Compartment : 33L
Freezer (Upper + Lower) : 267L
Refrigerator Compartment
Vacuum Compartment Platinum Catalyst
Powerful Cooling
Tempered Glass Shelves (Upper two shelves)
Height Adjustable Pocket/Shelf
Movable Egg Case
Freezer Compartment
Powerful Freezing
Aluminum Tray (Lower)
Three-Layer Freezer Case & Tall Storage (Lower Freezer Compartment)
Automatic Ice-Maker
Vegetable Compartment
Aero-Care Vegetable Compartment (With Platinum Catalyst and Moisture unit)
Door
Tempered Glass Surface
Auto Door (Refrigerator Compartment)
Auto Drawer (Lower Freezer Compartment and Vegetable Compartment)
Other Feature
Triple Deodorisation Filter
Frost Recycling Cooling
Eco Intelligent Control
Smart Lifestyle Memory
Energy Saving Mode
Control Panel (Touch Screen Controller)
Dimensions (H x W x D) [mm] *1
1,833 x 880 x 738
Color
Mirror
*1
Excluding handle and leg cover
Specifications and designs are subject to change without notice.
Color tone of actual products may differ from those shown on the website.

Video

Vacuum Compartment

Aero-care Vege Compartment

Energy Saving

Freezer Compartment

Warranty, Features, Energy & Water Rating

made-in-japanEco Thermo SensorinverterEnergy Rating 4star10 year warranty for compressor

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