Fresh water station - Drinking water station
The fresh water station is used for domestic hot water heating in connection with a buffer tank. This control regulates the set tapping temperature (e.g. 46°) independently of the buffer storage temperature, which can be up to 95°C. The temperature of the buffer storage tank can also be adjusted.
Hot water preparation:
The drinking water is only heated in the flow-through principle via a stainless steel plate heat exchanger when it is needed, e.g. when you let it run out of the tap. The electronic control ensures a constant hot water temperature, regardless of the buffer temperature, the quantities withdrawn or the tapping intervals.
- Fast and very accurate control processes are made possible by the use of state-of-the-art sensors.
- A flow sensor based on the vortex principle determines the flow rate.
- Accurate and fast reacting temperature sensors detect the temperatures of: Hot water, cold water and buffer flow.
The recorded signals are processed by the control system and the circulation pump is controlled accordingly (speed control).
A circulation pump can be controlled by the electronic control (according to pulse, time and temperature): We offer these to you at the price of 249,--€.
Advantages of heating the water with this method:
- Only as much water as is needed is heated. The remaining solar energy from the buffer tank is used to support the heating system.
- In this system, no Legionella can form in the water, as no warm water is heated up for storage.
- With the fresh water station a very good temperature stratification is achieved, as the warmest water is taken from the highest point in the buffer tank - see picture below. The fresh water station takes e.g. 65° C warm water, the tap temperature is set to 46°. No matter how different the tapping capacities (= quantity of water taken e.g. via tap) are, e.g. 10l, 20l, 30l and 40l, the control regulates that the tapping temperature remains constant at approx. 46° C. The tapping temperature is controlled by the control unit. The return temperature to the buffer tank is approx. 18-20° C with a cold water inlet of approx. 10°, whereby a very good stratification is achieved.
- Compared to a combination cylinder, up to 30% less energy is required for hot water preparation if no solar energy is available.
- When solar energy is available, the storage tank can be heated up to 95°C without it calcifying quickly, as with a combination storage tank, because dead water remains in the storage tank. This means that 30 % more solar energy can also be absorbed here.
|pressure stage||PN 6||PN 10|
|Thread:||1" IG||1" AG|
|Size (WxHxD):||485x685x200 mm|
|Hot water output:||100 KW||100 KW|
|Flow Primary:||1743 l/h|
|Return flow temperature:||20°C||20°C|
|KW / WW Temperature:||10°C/60°C||10°C/45°C|
|Loading capacity:||32.4 l/min||39.2 l/min|