Heat pump solar double bottom DHW tank
Inside enamelled tank for central domestic hot water systems, upper heat exchanger with special oversized surface for best heat pump or condensing boiler performance; solar systems can be connected to the second bottom heat exchanger, prepared for auxiliary heating by an electrical element. Available standard sizes 350 and 500 litres.
The use of modern heat pumps in combination with our high
performance solar collectors has been a challenge for our constructing
engineers. The sophisticated technology guarantees
highest gains.
Heat pump application: the heat pump can achieve the best
energy performance due to the huge double register in the
upper area of the tank. The heat exchanger surfaces are more
than sufficient to achieve an adequate coefficient of performance
even for the preparation of DHW.
Solar application: the lower tank area consists of a special heat
exchanger with additional exchanger surface in the tank’s double
bottom. This bottom integrates the usually idle tank area underneath
the heat exchanger into the solar heat zone. The solar
return line is the lowest connection of the tank. Thus, the DHW
is completely heated up to the bottom which guarantees ideal
heat efficiency.
Due to its special design the Solarbayer heat pump tank provides
for a continuous output and best quality drinking water. Furthermore,
the operating costs of the heat pumps are kept low.
The heat pump solar DHW tank offers many advantages for the condensing technology as well.
The burner operating time is going to be elongated due to the bigger refueling capacity and at the
same time the burner starts are decreased. Condensing boilers prefer low return line
temperatures. The enormously vast refueling heat exchanger increases the ΔT between boiler flow
line and boiler return line and therefore enables a high boiler efficiency factor.
- double heat exchanger register for the heat pump
- plain tube solar heat exchanger
- double tank bottom for highest heat transmission of your solar system
- perfectly suitable for condensing technology due to the vast upper heat exchanger surface
- this tank is a high performance DHW tank due to the enormous power of the upper heat exchanger, it even meets the demands of multi-family houses
- high quality steel S235JR (thick walled, compression proof)
- internal corrosion protection with double enameling (Made in Germany), two magnesia anodes
- rigid foam PU insulation, non-removable, insulation protection approx. 50 mm, silver PVC jacket, fire protection classification: B2
- installation of electric heating element is possible
| Heat pump DHW tank WP | 350 | 500 | |
| nominal capacity approx. | L | 378 | 422 |
| height with insulation [A] | mm | 1590 | 1790 |
| tilted height | mm | 1765 | 1945 |
| diameter (incl. non-removable solid foam insulation) [C] | mm | 750 | 750 |
| insulation thickness | mm | 50 | 50 |
| weight | kg | 200 | 240 |
| max. operating pressure | bar | 10 | 10 |
| max. operating temperature | °C | 95 | 95 |
| max. size of electric heating element (optional) | kW | 6 | 6 |
| stand-by heat loss according to EN 12897:2006 | 350 | 500 | |
| standby heat loss | W | 88 | 110 |
| energy efficiency class | C | C | |
| efficiency label |  |
|
| specifications double heat exchanger, top | 350 | 500 | |
| heating surface approx. | m² | 4,6 | 5,5 |
| capacity approx. | L | 22 | 35 |
| max. operating pressure | bar | 10 | 10 |
| max. operating temperature | °C | 95 | 95 |
| pressure drop (2 m³/h) | mbar | 76 | 87 |
| specifications double bottom heat exchanger, bottom | 350 | 500 | |
| heating surface | m² | 1,5 | 1,5 |
| capacity | L | 14 | 14 |
| max. operating pressure | bar | 10 | 10 |
| max. operating temperature | °C | 95 | 95 |
| pressure drop (2 m³/h) | mbar | 82 | 82 |
| specifications heat exchanger bottom | 350 | 500 | |
| heating surface solar heat exchanger | m² | 1,5 | 1,5 |
| capacity solar heat exchanger (total, incl. double bottom) | L | 6,4 (14) | 6,4 (14) |
| max. operating pressure solar heat exchanger | bar | 10 | 10 |
| max. operating temperature solar heat exchanger | °C | 110 | 110 |
| recommended min. collector surface ca. | m² | 7 | 10 |
| specifications output performance | 350 | 500 | |
| continuous tap output at 9 kW (HV 55°C | CW 10°C/HW 45°C) |
l/h | 740 | 1150 |
| continuous tap output at 12 kW (HV 55°C | CW 10°C/HW 45°C) |
l/h | 815 | 1300 |
| continuous tap output at 16 kW (HV 55°C | CW 10°C/HW 45°C) |
l/h | 943 | 1550 |
| continuous tap output at 17 kW (HV 70°C/HR 40°C und CW 10°C/HW 45°C) |
l/h | 1010 | 1700 |
| continuous tap output at 27 kW (HV 70°C/HR 40°C und CW 10°C/HW 45°C) |
l/h | 1270 | 2200 |
| continuous tap output at 50 kW (HV 70°C/HR 40°C und CW 10°C/HW 45°C) |
l/h | 2050 | 3780 |
| performance indicator NL at 70/50, double heat exchanger top | NL | 31 | 38 |
| performance indicator NL at 70/50, both heat exchangers | NL | 40,8 | 45,2 |
| connections with dimensioning | 350 | 500 | |
| [1] anodes (2 pcs., 1 ¼″) | top |
top |
|
| [2] hot water (Rp 1 ¼″) | mm | 1390 | 1590 |
| [3] thermometer (Rp ½″) | mm | 1300 | 1515 |
| [4] heating flow (Rp 1 ¼″) | mm | 1290 | 1490 |
| [5] tap water sensor 1 (Rp ½″) | mm | 1190 | 1390 |
| [6] circulation (Rp 1″) | mm | 990 | 1190 |
| [7] tap water sensor 2 (Rp ½″) | mm | 640 | 740 |
| [8] heating return (Rp 1 ¼″) | mm | 540 | 640 |
| [9] cleaning flange with connection electric heating element (Rp 1 ½″) | mm | 480 | 520 |
| [10] solar flow (Rp 1″) | mm | 405 | 405 |
| [11] solar sensor (Rp ½″) | mm | 290 | 290 |
| [12] cold water (Rp 1 ¼″) | mm | 190 | 190 |
| [13] solar return (Rp 1″) | mm | 100 | 100 |
Manufacturing tolerance according to DIN ISO 13920 C
Please take the instructions for installation/start up/maintenance from the relevant operation manuals
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