Colour
Vacuum Compartment
*Image is for illustrative purposes only.
Hitachi’s uniquely designed Vacuum Preservation can achieve approximately 0.8atm capabilities, 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.
*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.
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.
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. 8% Less
Approx. 5% Less
Approx. 0.7% Less
Approx. 27% More
Approx. 15% More
Approx. 7% More
Tested by Hitachi. The effect differs depending on models and conditions.
*K-value is an indication of freshness.
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.
Radish with 10mm diameter, soaked for 3 hours.
*Tested by Hitachi. The effect differs depending on the models and conditions.
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.
Refrigerator Compartment
Vacuum Compartment
Refrigerator Compartment
Vacuum Compartment
Aero-care Vege Compartment
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.
Odor components that come into contact with the catalyst are broken down into carbon dioxide and water.
*Image is for illustrative purposes only.
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,Carbon Dioxide
Optimal 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.
*Image is for illustrative purposes only.
Approx. 96.6% Moisture Retention*
Vitamin CApprox. 13% Improved Retention*
Approx. 86.0% Moisture Retention*
Vitamin EApprox. 12% Improved Retention*
Approx. 95.7% Moisture Retention*
PolyphenolApprox. 20% Improved Retention*
Approx. 93.8% Moisture Retention*
Vitamin CApprox. 4% Improved Retention*
*Tested by Hitachi. Comparison of the Aero-care Vege Compartment in the new model and the Moist Vegetable Compartment (without Platinum Preservation) in the previous model. The effect differs depending on the models and conditions.
Delicious Freezing
Lock in the original colours, textures, flavours and nutritional value of fresh and cooked products with high-velocity freezing!
Food placed on the big Delicious Freezing Aluminum Tray chills faster due to the high thermal conductivity of the metal. By quickly going past the maximum ice crystal formation zone where the moisture in food items freezes, the growth of ice crystals will be inhibited, thus keeping food tasting delicious.
*Size comparison between the 914㎠ Quick Freezing Aluminium Tray (previous model) and the 2,149㎠ Delicious Freezing Aluminium Tray (new model). The effect differs depending on the models and conditions.
When the Temperature Sensor detects the temperature of hot food on the tray, it will automatically switch the setting and freeze it very quickly*.
Upper Freezer Compartment
Lower Freezer Compartment
Vegetable Compartment
Comparison of dripping upon thawing lamb.
*Between lamb stored in the two different freezers for 10 days and thawed for four hours at a room temperature of 23°C.
Vitamin C content of broccoli.
*Between cooked broccoli that was stored in the two different freezers for 10 days.
Less deterioration of food quality.
*Between cooked rice that was stored in the two different freezers for 10 days and thawed thereafter.
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.
Using the conventional insulation material of urethane foam together with highly efficient vacuum insulation panels enables both large capacity and energy-saving performance.
*The location, shape and number of vacuum insulation panels differs depending on the model.
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.
Convenient Eco
Intelligent Control
Cuts power consumption by about 10 – 12% compared to that during regular operation.
(Room temperature of 16°C – 32°C)*
LED 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.
Controlled Compressor OperationLowers the rotation speed of the compressor.
Temperature (in Each Compartment)Slowly cools the compartment without affecting food preservation.
Door AlarmThe 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.
Operation SignThis lights up 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.
Freezer Compartment
Large capacity ready to hold about 5 shopping baskets of food.
The measurements and rated capacities are based on the R-X730GS using a 22L capacity basket.
| Series | Made in Japan |
|---|---|
| Door | 6 Door |
| Type | No Frost |
| Energy Class | E |
| Gross Capacity (L) | Total: 722 |
| Refrigerator: 489 | |
| Freezer: 233 | |
| Storage Capacity (L) | Total: 525 |
| Refrigerator: 418 | |
| Freezer: 107 | |
| Dimensions (mm) | Width: 825 |
| Height: 1,833 | |
| Depth: 728 | |
| Net Weight (Kg) | 135 |
| Consumption (kWh/year) | 274 |
| Refrigerator Compartment | Vacuum Compartment |
| Tempered Glass Shelves | |
| Height Adjustable Pocket/Shelf | |
| Vegetable Compartment | Aero-care Vegetable Compartment |
| Upper Freezer Compartment | Automatic Ice-Maker |
| Low Temperature Freezing Mode | |
| Lower Freezer Compartment | Three-layer Freezer Case & Tall Storage |
| Delicious Freezing | |
| Big-Size Aluminum Tray | |
| Quick Freezing | |
| Low Temperature Freezing Mode | |
| General Features | Tempered Glass Surface |
| Auto Door | |
| Auto Drawer | |
| Triple Deodorisation Filter | |
| Frost Recycling Cooling | |
| Eco Intelligent Control | |
| Smart Lifestyle Memory | |
| Energy Saving Mode | |
| Control Panel (Touch Screen Controller) | |
| High-Efficiency Inverter Compressor | |
| Vacuum Insulation Panel (VIP) | |
| Colour | Crystal Mirror (X) |
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