Colour
The secret to longer-lasting freshness is reduced oxygen levels. Hitachi’s original preservation extracts air to maintain approx. 0.8 atm of vacuum preservation. With unique Platinum Catalyst, chilled meat, fish and dairy products are kept fresh and nutritious, and ready to cook.
Stay healthy. A vacuumed environment prevents oxidisation and retains nutrients inside the food.
Initial Value
0.45g/100g*1
100%*1
Refrigerator
Compartment
57%*1
Vacuum
Compartment
71%*1
**1 Tested by Hitachi. Tested Model : R-WX74K (equivalent vacuum compartment performance to R-HW620RS/540RS). The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Excellent freshness preservation with Hitachi technology for keeping stored food fresh.
Vacuum Compartment : 17.9%*2
Initial Value : 12.0%*2
Vacuum Compartment : 45.3%*2
Initial Value : 38.1%*2
**2 Tested by Hitachi. Tested Model : R-WX74K (equivalent vacuum compartment performance to R-HW620RS/540RS). K-value is an indication of freshness. The lower the value, the fresher the item. K-value of 20% or higher is not suitable for eating raw and K-value of 60% or higher is not suitable for consumption. The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Excellent freshness preservation with Hitachi technology for keeping stored food fresh.
Vacuum Compartment : 45.3%*2 Initial Value : 38.1%*2
Excellent preservation of original flavour and texture, by minimising the drips while keeping them fresh without getting frozen and hydrated without the need for troublesome wrapping.
Drip Loss
0.47g / 100g*1
Vacuum Compartment
Drip Loss
2.82g / 100g*1
Freezer Compartment (Natural Thaw)
**7 Tested by Hitachi. Tested Model : R-WX74K (equivalent vacuum compartment performance to R-HW620RS/540RS). The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Excellent preservation of original flavour and texture, by minimising the drips while keeping them fresh without getting frozen and hydrated without the need for troublesome wrapping.
Vacuum Compartment
Freezer Compartment(Natural Thaw)
* Tested by Hitachi. Tested Model : R-WB64VGD0. The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Quick seasoning is made possible because the Vacuum Compartment removes air from stored food, enabling seasoning to be absorbed at a faster rate.*3 So, with less time required for seasoning and cooking, there’s more time for eating!
**3 Tested by Hitachi. Tested Model : R-G6700D (equivalent atmospheric pressure to R-HW620RS/540RS). Penetration rates may differ depending on food seasoning used.
Hitachi innovation at its finest and most consistent : the sealed pressure-resistant vacuum realises and maintains the vacuumed environment. A vacuum pump extracts air and reduces oxygen to achieve approx. 0.8 atm (atmospheric pressure) throughout usage.
* Vacuum means the space where the pressure is lower than the atmospheric pressure. The pressure in the Vacuum Compartment is about 0.8 atm, which is lower than the atmospheric pressure, hence, Hitachi considers this a vacuum.
Optimum-moisture chilled air and lower temperature of approx. 2°C retains flavours and freshness.*1
*1 Tested by Hitachi. The effect may differ depending on conditions and amount of food stored.
Storing at low temperature retains the freshness, and suppresses mould growth of cooked or pre-cooked items.*2
*2 Tested by Hitachi. The effect differs depending on the type and freshness of food.
Storing at optimum humidity environment retains the freshness of your food, and suppresses dehydration and discolouration without rapping*3.
With Moisture Cooling
Without Moisture Cooling
*3 Tested model : R-HX60N (equivalent to R-HW620RS/540RS) for With Moisture Cooling and R-XG56J for Without Moisture Cooling. The effect differs depending on the type and freshness of food.
Increased volume of chilled air cools down the items faster with the Quick Cooling mode.
Cools down the pre-cooking items faster to shorten the cooking time.
Cools beverages faster.
* Tested by Hitachi. The power consumption is increased by 5% when the Quick Cooling mode is ON.
Cools down the pre-cooking items faster to shorten the cooking time.
Cools beverages faster.
The uniquely-designed lower compartment sustains freshness and nutrients of the vegetables and fruits with Platinum Catalyst. In addition, the improved airtight seal of compartment increases and controls humidity.
Under the power of a Platinum Catalyst, food achieves amazing results. With increased carbon dioxide produced, vegetable respiration is controlled and consumption of nutrients from the environment limited to prevent loss of food freshness.
1st Day
After 7 Days
1st Day
After 7 Days
Aero-care Vege Compartment
with Platinum Catalyst
Non Aero-care Vege Compartment
* Tested by Hitachi. Test model for Aero-care Vege Compartment : R-HXCC62S (equivalent to R-HW620RS/540RS), for Non Aero-care Vege Compartment : R-G6700D. The effect may differ depending on types and amount of food stored.
Under the power of a Platinum Catalyst, food achieves amazing results. With increased carbon dioxide produced, fruit respiration is controlled and consumption of nutrients from the environment limited to prevent loss of food freshness.
Initial Value
42.7mg/100g*
100%*
Non Aero-care Vege
Compartment
71%*
Aero-care Vege
Compartment
98%*
Initial Value 42.7mg/100g*
100%*
Non Aero-care Vege
Compartment
71%*
Aero-care Vege
Compartment
98%*
* Tested by Hitachi. Test model for Aero-care Vege Compartment : R-HXCC62S (equivalent to R-HW620RS/540RS), for Non Aero-care Vege Compartment : R-G6700D. The effect may differ depending on types and amount of food stored.
Delicious Freezing technology seals in the original textures, flavours and nutritional value of fresh and cooked products. This is achieved by freezing food very quickly past the maximum ice crystal formation zone on a big aluminium tray.
When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This minimises dripping by reducing ice crystal size, thus sealing in flavours of meat and fish.
Delicious Freezing
(Natural Thaw for 3 Hours)
Regular Freezing
(Natural Thaw for 3 Hours)
* Tested by Hitachi. Tested model : R-HX60N (equivalent to R-HW620RS/540RS). Tested at the top shelf of the freezer compartment for Delicious Freezing and at the 2nd top shelf for Regular Freezing.
When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This achieves greater Vitamin C preservation.
(mg/100g)
Raw Broccoli
Initial Value
68.7mg*
Regular Freezing
56.8mg*
Delicious Freezing
64.7mg*
(mg/100g)
Raw Broccoli Initial Value
68.7mg*
Regular Freezing
56.8mg*
Delicious Freezing
64.7mg*
* Tested by Hitachi. Tested model : R-HX60N (equivalent to R-HW620RS/540RS). Tested at the top shelf of the freezer compartment for Delicious Freezing and at the 2nd top shelf for Regular Freezing.
VIP is a thin vacuum-insulated panel with extremely high heat insulation performance. It achieves super energy saving compared to conventional urethane, by preventing external heat entry or internal cold air escape.
* The VIP installed area, shape and the number of VIP used on the product may differ depending on the model.
* The VIP installed area, shape and the number of VIP used on the product may differ depending on the model.
The tempered glass shelves and the door pockets can be adjusted to match the size of the food items and your needs.
| Model Name | R-HW620RS |
|---|---|
| Gross Capacity (L) | Total : 648 |
| Refrigerator Compartment : 287 | |
| Vacuum Compartment : 43 | |
| Freezer Compartment (Upper + Lower + Ice) : 200 | |
| Vegetable Compartment : 118 | |
| Storage Capacity (L) | Total : 475 |
| Refrigerator Compartment : 273 | |
| Vacuum Compartment : 15 | |
| Freezer Compartment(Upper + Lower + Ice) : 107 | |
| Vegetable Compartment : 80 | |
| Cooling System | Independent Cooling System |
| Inverter Compressor | |
| Eco Intelligent Control | |
| Refrigerant : R600a | |
| Vacuum Insulation Material (VIP) | |
| Refrigerator Compartment | Vacuum Compartment : Platinum Catalyst with Ruthenium (approx.) -1℃ |
| Moisture Cooling | |
| LED Lighting | |
| Tempered Glass Shelf | |
| Height Adjustable Pockets | |
| Height Adjustable Shelves | |
| Automatic Ice Making Compartment | Independent Ice Storage |
| Quick Ice Making | |
| Automatic Cleaning Function | |
| Water Filter | |
| Stop Ice Making | |
| Signal for Water Supply | |
| Lower Freezer Compartment | Aluminum Tray （Top） |
| Delicious Freezing （Top） | |
| 3-layer Freezer Case | |
| Vegetable Compartment | Aero-care Vege Compartment (lower case) |
| 2-layer Vegetable Case | |
| Other Features | Triple Deodorisation Filter |
| Lifestyle Memory Control | |
| Energy Saving Mode | |
| Control Panel (Touch Screen Controller) | |
| Flat Back (No clearance required on the back side) | |
| Door-Opened Alarm | Refrigerator Compartment |
| Ice Making Compartment | |
| Lower Freezer Compartment | |
| Weight (kg) | 125 |
| Dimensions (WxHxD) (mm) | 685 x 1,833 x 738 |
| Body Colour | Crystal Mirror (X) / Crystal Black (XK) / Crystal White (XW) |
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