Fresh-water storage tank 300 litres with 3 smooth pipe heat exchangers

Fresh water storage tank for highest demands on drinking water hygiene and energy efficiency.
The structure of fresh water storage tanks differs fundamentally from conventional, large-volume domestic hot water storage tanks. A built-in corrugated stainless steel pipe separates the drinking water from the heating water and also serves as a high-performance heat exchanger. This combines the advantages of a buffer storage tank with those of an instantaneous water heater.
The heating water serves as actual heat storage while the drinking water passes through the corrugated stainless steel pipe only if required, and this ensures a domestic water heating that is legionella-safe. You do not need a legionella protection programme in the control unit. At all times, the consumer is provided with hygienically perfect, fresh water at the desired temperature.

The three auxiliary smooth tube heat exchangers give your customer the option of integrating more heat generators at any time and feeding their energy into the fresh water storage tank.

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OEG no.	516008316
Tank capacity [litres]:	300
Operating mode:	multivalent
Installation type:	Vertical storage tank
Manufacturer	OEG
Brand	Pure+
Energy efficiency class	A+
ErP-Label
Notes	Delivery by forwarding agency with highly efficient ThermoVac® vacuum insulation High Quality Clean fresh water generation in corrugated stainless steel pipe with flow heater principle 10-year warranty TÜV Rheinland
Customs tariff number	84191900

General

Colour:	blue
Insulation according to DIN 4102-1 Fire Protection Class B2:	solid foamed insulation
Weight [kg]:	138
Total height including insulation [mm]:	1750
Diameter without insulation [mm]:	500
Diameter with insulation [mm]:	610
Tilt height [mm]:	1830

Energy

Energy efficiency class according to EU regulation no. 812/2013:	A+
Heat retaining loss according to EN 12897 [W]:	36
Heat losses in stand-by mode according to DIN 12897 [kW/h / 24 h]:	0,864
Output capacity (45°C) [l]:	175
Performance indicator NL following DIN 4708:	1,60
TÜV certificate ID:	0000080330

Tank

Real volume according to EN 12897 [l]:	291
pmax Tank [bar]:	3
tmax Tank [°C]:	95
tmin Tank [°C]:	20

DHW heat exchanger

DHW heat exchanger area [m²]:	4,40
DHW heat exchanger volume [l]:	19
pmax DHW heat exchanger [bar]:	6
tmax DHW heat exchanger [°C]:	95

Smooth-pipe heat exchanger

Smooth-pipe heat exchanger [number]:	3
Smooth-pipe heat exchanger area bottom [m²]:	1,15
Smooth tube heat exchanger surface area middle [m²]:	1,15
Smooth-pipe heat exchanger area top [m²]:	0,77
Smooth-pipe heat exchanger volume bottom:	7,50
Smooth tube heat exchanger capacity middle:	7,50
Smooth-pipe heat exchanger volume top:	5,05
pmax Smooth-pipe heat exchanger [bar]:	10
tmax Smooth-pipe heat exchanger [°C]:	130

Connections

Connection layout:	180°
Connection sensor [Ø mm / terminal]:	6 mm
Connection cold / hot water:	Rp 1 1/4"
Connection heat generator [thread]:	R 1"
Connection heat exchanger [thread]:	Rp 1"
Connection heating element [thread]:	Rp 1 1/2"
Max. immersion depth of screw-in heater [mm]:	500