DHW CylinderuniSTOR exclusive VIH R 300-500 l

Particularly energy-saving hot-water cylinder for boilers.

High hot-water comfort for family homes
Perfect combination with gas condensing boilers
Efficiency at its best — up to 50% less heat loss
Digital display for temperature and system status
High quality made in Germany — built to last
Different volume sizes for households of up to 10 people

Our uniSTOR exclusive VIH R hot-water cylinders deliver outstanding comfort and energy efficiency in combination with Vaillant gas condensing boilers. With capacities from 300 to 500 litres, they are the ideal solution for single- or two-family homes, ensuring perfect domestic comfort even during simultaneous use. Thanks to advanced A-rated insulation technology (A+–F scale), heat loss remains exceptionally low, helping you save energy costs day after day. Made from high-quality materials and protected against corrosion by a maintenance-free impressed current anode, the uniSTOR exclusive VIH R stands for long-lasting reliability and efficient performance for many years.

Ideal for:

Hot water

Technical data table overline

Technical data table headline

uniSTOR exclusive
VIH R 300/3 MR	VIH R 400/3 MR	VIH R 500/3 MR

ErP

ErP Energy Efficiency Class Hot Water Storage Tanks	ErP Energy Efficiency Class Hot Water Storage Tanks

uniSTOR exclusive
VIH R 300/3 MR	VIH R 400/3 MR	VIH R 500/3 MR

Cylinder

Cylinder Nominal Capacity	Cylinder Nominal Capacity	294 l	398 l	490 l

Heat Exchanger

Heat Exchanger Heating (Heating Area / Heat Exchanger Content)	Heat Exchanger Heating (Heating Area / Heat Exchanger Content)	1,5 m² / 9,9 l	1,7 m² / 10,9 l	2,3 m² / 15,2 l

Domestic Hot Water

Initial Domestic Hot Water Output (Tcyl = 60 °C) (Draw-off Temperature 45 °C)	Initial Domestic Hot Water Output (Tcyl = 60 °C) (Draw-off Temperature 45 °C)	396 l/10min	517 l/10min	623 l/10min
Continuous Domestic Hot Water Output (Tcyl = 60 °C) (Draw-off Temperature 45 °C)	Continuous Domestic Hot Water Output (Tcyl = 60 °C) (Draw-off Temperature 45 °C)	611 l/h	668 l/h	936 l/h
NL-Figure (Tcyl = 60 °C)	NL-Figure (Tcyl = 60 °C)	9,0	15,0	21,0

Insulation And Heat Loss

Standby Heat Loss	Standby Heat Loss	1,16 kWh/24h	1,22 kWh/24h	1,31 kWh/24h

Connections

Connection Dimension Heating (Flow, Return)	Connection Dimension Heating (Flow, Return)	R 1″	R 1″	R 1″
Connection Dimension Circulation	Connection Dimension Circulation	R ¾″	R ¾″	R ¾″
Connection Dimension Cold Water, Domestic Hot Water	Connection Dimension Cold Water, Domestic Hot Water	R 1″	R 1″	R 1″

Dimensions

Height / Width / Depth	Height / Width / Depth	1.929 mm / 690 mm / 775 mm	1.633 mm / 850 mm / 930 mm	1.933 mm / 850 mm / 930 mm
Height / Width / Depth (Dimension When Positioning)	Height / Width / Depth (Dimension When Positioning)	1.773 mm / 500 mm / 500 mm	1.471 mm / 650 mm / 650 mm	1.771 mm / 650 mm / 650 mm
Weight	Weight	115 kg	149 kg	186 kg
Weight (Dimension When Positioning)	Weight (Dimension When Positioning)	81 kg	113 kg	140 kg
Weight Ready for Operation	Weight Ready for Operation	409 kg	548 kg	677 kg
Tilt Dimension	Tilt Dimension	2.049 mm	1.841 mm	2.112 mm

Limitations

Temperature Domestic Hot Water (max)	Temperature Domestic Hot Water (max)	85 °C	85 °C	85 °C
Temperature Heating (max)	Temperature Heating (max)	110 °C	110 °C	110 °C
Operating Pressure Domestic Hot Water (max)	Operating Pressure Domestic Hot Water (max)	10 bar	10 bar	10 bar
Operating Pressure Heating (max)	Operating Pressure Heating (max)	10 bar	10 bar	10 bar