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.
* Vacuum is a state of lower pressure than atmospheric pressure. The pressure inside vacuum compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.
Increasing food fresh longevity with a vacuumed environment*1 which prevents oxidation and supports nutrient retention.
Initial Value
0.84g/100g
100%
Refrigerator
Compartment
69%
Vacuum
Compartment
73%
*1 Vacuum is a state of lower pressure than atmospheric pressure.
The pressure inside Vacuum Compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.
*2 Tested by Hitachi. Tested Model : R-GWC670TC(equivalent performance to R-HW620/HW540WS).
Comparison between refrigerator compartment and Vacuum Compartment. The effect may differ depending on food types, condition, and quantity and does not extend the best-before or expiration date.
A vacuumed environment*1 suppress oxidization and supports nutrients inside the food.
Initial Value
161.7mg/100g
100%
Normal
Chilled Room
52%
Vacuum
Compartment
63%
*1 Vacuum is a state of lower pressure than atmospheric pressure.
The pressure inside vacuum compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.
*2 Tested by Hitachi. R-GWC670TC(equivalent performance to R-HW620/HW540WS). Tested model for normal chilled room: R-K40H.
The effect may differ depending on types or freshness of food stored and does not extend to best-before and expiration dates.
Protecting the freshness of food without freezing at approximately -1°C. No freezing or wrapping required. Enjoy ingredients fresher for longer.
Vacuum Compartment : 19.5%
Initial Value : 10.6%
Vacuum Compartment : 59.9%
Initial Value : 42.4%
* Tested by Hitachi. Tested model: R-GWC670TC(equivalent performance to R-HW620/HW540WS). K-value is an indication of freshness. The lower the value, the fresher the item. K-value of 20% or higer 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.
Protecting the freshness of food without freezing at approximately -1°C. No freezing or wrapping required. Enjoy ingredients fresher for longer.
Vacuum
Compartment : 19.5%
Initial Value : 10.6%
Vacuum
Compartment : 59.9%
Initial Value : 42.4%
* Tested by Hitachi. Tested model: R-GWC670TC(equivalent performance to R-HW620/HW540WS). K-value is an indication of freshness. The lower the value, the fresher the item. K-value of 20% or higer is not suitable for eating raw and K-value of 60% or higher is not suitable for consuption. The effect may differ depending on types or freshness of food stored and does not extend to best-before and expiration dates.
Preserve original flavour by minimising the drips, and texture by making the cells hard to break.
Drip Loss
1.73g / 100g
Freezer Compartment (Natural Thaw for 3 hours)
Drip Loss
0.51g / 100g
Vacuum Compartment
* Tested by Hitachi. Tested model: R-GWC670TC(equivalent performance to R-HW620/HW540WS). Room temperature set at approx. 20℃ and without door opening/closing. The effect may differ depending on food types, condition, and quantity and does not extend the best-before or expiration date.
Preserve original flavour by minimising the drips, and texture by making the cells hard to break.
Freezer Compartment(Natural Thaw for 3 hours)
Vacuum Compartment
* Tested by Hitachi. Tested model: R-GWC670TC(equivalent performance to R-HW620/HW540WS). Room temperature set at approx. 20℃ and without door opening/closing. The effect may differ depending on food types, condition, and quantity and does not extend the best-before or expiration date.
Preserve the original flavour by retaining moisture without the need for troublesome wrapping.
(Direct Cooling)
(In-direct Cooling)
* Tested by Hitachi.
Tested model for Vacuum Compartment: R-GWC670TC (equivalent performance to R-HW620/HW540WS).
Tested model for Normal Chilled Room: R-K40H. Room temperature set at approx. 20°C and without door opening/closing. The effect may differ depending on food types, condition, and quantity and does not extend the best-before or expiration date. It is recommended to wrap foods with strong odours or those that easily absorb odours.
Vacuum technology by Hitachi reduces oxygen levels to maintain approx. 0.8 atmospheric pressure enabling food to be marinated faster, leaving you with more time to savour your meals.
* Tested by Hitachi.
Tested model: R-GWC670TC (equivalent performance to R-HW620/HW540WS). Penetration rates may differ depending on food seasoning used.
The secret to long-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.
* Vacuum is a state of lower pressure than atmospheric pressure. The pressure inside vacuum compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.
* Image is for illustrative purposes only. Vacuum compartment size and designs are differ by models.
Chills entire refrigerator compartment to retain flavour and freshness. Maintain ingredient freshness by suppressing bacterial growth.
* Image is for illustrative purposes only and uses different model.
*1 Moisture cooling is not applicable for door pockets. Factory setting will be Moisture Cooling “ON”. When the Moisture Cooling is ON, the total power consumption is increased by approx.5%.
*2 For when the room temperature is stable and the room temperature is approx. 32°C.
*3 Approximately 400 g of leaf salad (without wrap) stored for 24 hours. Room temperature about 20°C, no door open/close. The humidity inside the cabinet is the average humidity of the shelf space. Humidity depends on the amount of storage in the refrigerator compartment, the food (type, condition, and amount of food), the number of times the refrigerator door is open/close, and the operating conditions.
High humidity keeps the salad fresh without wrapping by suppressing dehydration and discolouration.
Approx. 2°C*1 of chilled temperature suppress the activities of bacteria*2 so the cooked item stays fresh and delicious.
High humidity keeps the salad fresh without wrapping by suppressing dehydration and discolouration.
* Factory setting will be Moisture Cooling “ON”. When the Moisture Cooling is ON, the total power consumption is increased by approx.5%.
*1 Tested by Hitachi. Moisture cooling is not applicable for door pockets. For when the room temperature is stable and the room temperature is approx. 32°C.
*2 Tested by Hitachi. The effect may differ depending on conditions and the amount of food stored.
High humidity keeps the salad fresh without wrapping by suppressing dehydration and discolouration.
With Moisture Cooling
Without Moisture Cooling
Humidity refrigerator comp.
Approx. 81%
With Moisture Cooling
Humidity refrigerator comp.
Approx. 59%
Without Moisture Cooling
*1 Tested by Hitachi. Tested model for Moisture Cooling: R-HXCC62X(equivalent performance to R-HW620/HW540,HV490WS). Tested model for without Moisture Cooling:R-XG56J. The effect may differ depending on the type and freshness of food.
Cools down food and drink quickly by increasing the amount of cold air for a certain period.
Cools down the pre-cooking items faster to shorten the cooking time.
Cools beverages faster.
* Tested by Hitachi. By default, “Quick Cooling” is turned off. Activating this feature increases energy use by approx. 8%.
It can operate regardless of the refrigerator temperature settings.
Cools down the pre-cooking items faster to shorten the cooking time.
Cools beverages faster.
* Tested by Hitachi. By default, “Quick Cooling” is turned off. Activating this feature increases energy use by approx. 8%. It can operate regardless of the refrigerator temperature settings.
The uniquely-designed 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.*
* Image is for illustrative purposes only and uses different model.
* Tested by Hitachi. Tested model R-HXCC62X(equivalent performance to R-HW620/HW540,HV490WS).When storing approx. 1.8kg of vegetables in the Aero-care Vege Compartment (Lower case) at a room temperature of approx. 20°C for 10 days without wrapping or opening/closing the door, the humidity inside the refrigerator will be 62-96%. Humidity varies depending on the amount and type of food being stored, freshness, and operating conditions of the refrigerator. The effect may differ depending on food types, condition, and quantity.
Under the power of a Platinum Catalyst, food achieves amazing results. The increased carbon dioxide controls vegetable respiration, suppresses the loss of nutrients, and keeps the vegetables freshness longer.
1st Day
After 10 Days
1st Day
After 10 Days
Aero-care Vege Compartment
with Platinum Catalyst
Non Aero-care Vege Compartment
* Tested by Hitachi. Tested model for Aero-care Vege Compartment: R-HXCC62X(equivalent performance to R-HW620/HW540,HV490WS).Tested model for Without Aero-care Vege Compartment: R-H54V. The effect may differ depending on food types, condition, and quantity and does not extend the best-before or expiration date.
Under the power of a Platinum Catalyst, food achieves amazing results. The increased carbon dioxide controls vegetable respiration, suppresses the loss of nutrients, and keeps the vegetables freshness longer.
Initial Value
63.1mg/100g
100%
Without Aero-care Vege
Compartment
85.8%
With Aero-care Vege
Compartment
96.1%
Initial Value 42.7mg/100g
100%
Without Aero-care Vege
Compartment
85.8%
With Aero-care Vege
Compartment
96.1%
* Tested by Hitachi. Vitamin C compared after 10 days. Tested model for Aero-care Vege Compartment: R-HXCC62X(equivalent performance to R-HW620/HW540,HV490WS). Tested model for Without Aero-care Vege Compartment: R-H54V. The effect may differ depending on food types, condition, and quantity and does not extend the best-before or expiration date.
A dedicated temperature sensor detects the temperature of the Delicious Freezing space, automatically switches the operation, and quickly freezes the food.
Aluminium tray helps food temperature pass quickly through “Maximum Ice Crystal Formation Zone (-1°C to -5°C )” and freezes food faster. This can suppress the growth of ice crystals and suppress damage to the food cells.
* Tested by Hitachi.
* Image is for illustrative purposes only and uses different model.
Organize Your Freezer Storage Space.
Top Case : For stocking flat items, and home freezing items.
Mid Case : For stocking frequently used items and leftovers.
Bottom Case : For stocking up bulk bought frozen foods and large items.
Vertical Storage Space : For stocking 500ml plastic bottles
A dedicated temperature sensor detects the temperature of the Delicious Freezing space, automatically switches the operation, and quickly freezes the food.
Aluminium tray helps food temperature pass quickly through “Maximum Ice Crystal Formation Zone (-1°C to -5°C )” and freezes food faster. This can suppress the growth of ice crystals and suppress damage to the food cells.
* Tested by Hitachi.
Organize Your Freezer Storage Space.
Top Case : For stocking flat items, and home freezing items.
Mid Case : For stocking frequently used items and leftovers.
Bottom Case : For stocking up bulk bought frozen foods and large items.
Vertical Storage Space : For stocking 500ml plastic bottles
* Image is for illustrative purposes only and uses different model.
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. Quick freezing reduces the ice crystal size and suppress the drip loss, thus sealing in flavours of meat and fish.
Delicious Freezing
(Natural Thaw for 4 Hours)
Regular Freezing
(Natural Thaw for 4 Hours)
* Tested by Hitachi. Tested model for Delicious Freezing : R-GWC670TC(equivalent performance to R-HW620/HW540, HV490WS). Comparison between Regular Freezing(Lower freezer /mid-case) and Delicious Freezing(Lower freezer/Top-case). The effect may differ depending on food types, freshness, packaging condition, and thawing method and does not extend the best-before, expiration date.
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 greatly reduces the loss of vitamin C.
(mg/100g)
Raw Broccoli
Initial Value
87.3mg
Regular Freezing
43.8mg
Delicious Freezing
48.9g
(mg/100g)
Raw Broccoli Initial Value
87.3mg
Regular Freezing
43.8mg
Delicious Freezing
48.9mg
* Tested by Hitachi. Tested model for Delicious Freezing : R-GWC670TC(equivalent performance to R-HW620/HW540, HV490WS). Comparison between Regular Freezing(Lower freezer /mid-case) and Delicious Freezing(Lower freezer/Top-case). The effect may differ depending on food types, freshness, packaging condition, and thawing method and does not extend the best-before, expiration date.
by simply placing items without needing to press any buttons.
(Bottom Freezer Bottom case)
(Bottom Freezer Mid case)
(Bottom Freezer Bottom case)
(Bottom Freezer Mid case)
* Tested by Hitachi. Tested model: R-HXCC62X(equivalent performance to R-HW620/HW540, HV490WS). Comparison between lower freezer mid case(Frost suppress, ■■ temperature setting) and lower freezer bottom case(Regular freezing, ■■ temperature setting). Testing conditions: room temperature approximately 20℃ and without door opening/closing. The effect may differ on the food types, condition, quantity, and packaging condition of the food.*1 *2
*1 Salmon fillets were wrapped in plastic wrap and stored in the freezer. After storage, the fillets were unwrapped, photographed, and measured weight loss rate. Mid case: 1.2%, Bottom case: 1.8%.
*2 Unopened, individually packaged ice popsicles photographed after being removed from packaging.
by simply placing items without needing to press any buttons.
(Bottom Freezer Bottom case)
(Bottom Freezer Mid case)
* Tested by Hitachi. Tested model: R-HXCC62X(equivalent performance to R-HW620/HW540, HV490WS). Comparison between lower freezer mid case(Frost suppress, ■■ temperature setting) and lower freezer bottom case(Regular freezing, ■■ temperature setting). Testing conditions: room temperature approximately 20℃ and without door opening/closing. The effect may differ on the food types, condition, quantity, and packaging condition of the food.*1
*1 Salmon fillets were wrapped in plastic wrap and stored in the freezer. After storage, the fillets were unwrapped, photographed, and measured weight loss rate. Mid case: 1.2%, Bottom case: 1.8%.
by simply placing items without needing to press any buttons.
(Bottom Freezer Bottom case)
(Bottom Freezer Mid case)
* Tested by Hitachi. Tested model: R-HXCC62X(equivalent performance to R-HW620/HW540, HV490WS). Comparison between lower freezer mid case(Frost suppress, ■■ temperature setting) and lower freezer bottom case(Regular freezing, ■■ temperature setting). Testing conditions: room temperature approximately 20℃ and without door opening/closing. The effect may differ on the food types, condition, quantity, and packaging condition of the food.*2
*2 Unopened, individually packaged ice popsicles photographed after being removed from packaging.
and keeps food from drying out by simply placing items without needing to press any buttons.
When food is cooled from both the top and bottom, its temperature decreases more than when cooled just from the top. This reduces the temperature difference between the food and the cooler surrounding air, making moisture less likely to escape and suppress frost and dryness.
and keeps food from drying out by simply placing items without needing to press any buttons.
When food is cooled from both the top and bottom, its temperature decreases more than when cooled just from the top. This reduces the temperature difference between the food and the cooler surrounding air, making moisture less likely to escape and suppress frost and dryness.
VIP is a thin vacuum-insulated panel with extremely high heat insulation performance. This can reduce the thickness of insulation and keep the thermal conductivity low.
* The position number and shape of the VIPs used vary depending on the model.
* Image is for illustrative purpose only and uses different model.
* The position number and shape of the VIPs used vary depending on the model.
* Image is for illustrative purpose only and uses different model.
The tempered glass shelves and the door pockets
can be adjusted to match the size of the food items
and your needs.
* Image is for illustrative purpose only and uses different model.
| Model Name | R-HW540WS |
|---|---|
| Volume (L) | Total : 540 |
| Refrigerator Compartment : 278 | |
| Freezer Compartment(Upper + Lower + Ice) : 159 | |
| Vegetable Compartment : 103 | |
| Cooling System | Independent Cooling System |
| Inverter Compressor | |
| Refrigerant : R600a | |
| Vacuum Insulation Material (VIP) | |
| Refrigerator Compartment | Vacuum Compartment : Platinum Catalyst with Ruthenium -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） | |
| Frost Suppress (Top and Mid case) | |
| 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) | 118 |
| Dimensions (WxHxD) (mm) | 650 x 1,833 x 699 |
| Body Colour | Crystal Black (XK) Crystal White (XW) Crystal Light Gold (XN) |
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