Systematic heating
Technology
![]() | Depending on the desired temperature, the heating water for the hot water supply is always taken from the correct point. | ![]() |
![]() | At 70 to 80 °C the flow is fed from the boiler. | ![]() |
![]() | With water between 45 and 65 °C the radiators are fed. | ![]() |
![]() | Between 45 and 100 °C hot water is fed from the solar heating system | ![]() |
![]() | Between 35 and 50 °C return from the hot water tank. | ![]() |
![]() | Between 35 and 45 °C return from the radiators. | ![]() |
![]() | Between 30 and 45 °C water from the solar heating system, | ![]() |
![]() | Between 30 and 35 °C hot water will be fed to the underfloor heating. | ![]() |
![]() | Between 25 and 35 °C return to the radiators. | ![]() |
![]() | Between 25 and 35 °C return from the fresh water module. | ![]() |
![]() | Between 22 and 70 °C return to the solar heating system. | ![]() |
![]() | Between 22 °C and 27 °C return from the underfloor heating. | ![]() |
Technical data
The number and position of the connections is optimised for the ETA hydraulics and control system. The following figures depict a Solar SPS
stratified buffer with a supplemental solar exchanger (connections S1 and S2).
The M3 connection without thermosiphonic separator is intended for the return connection of boilers that are to heat only the upper half of the buffer, or for the attachment of an electric heating element with a 6/4" outside thread.
The M4 connection is designed specifically for the return from the hot water tank. By means of the thermosiphonic separator, a warm return flows to the middle of the buffer and a cold return to the lower third.
The M6 and M7 connections are only installed on stratified buffers SP and SPS 2200. These connections are equipped with an inflow lance for high outputs with a flow rate of up to 20 m³/h.
If more than two buffers are used for hydraulic reasons, they must be connected using external piping in a Tichelmann system.
For the solar stratified buffer, a minimum collector area of 1 m² is required for each 100 litres. For smaller collector areas on larger buffers and very large solar heating systems, we recommend the
ETA stratified charging module.
Technical data | Unit | SP 600 SPS 600 | SP 825 SPS 825 | SP 1000 SPS 1000 | SP 1100 SPS 1100 | SP 1650 SPS 1650 | SP 2200 SPS 2200 |
---|---|---|---|---|---|---|---|
Volume | l | 600 | 825 | 1,000 | 1,100 | 1,650 | 2,200 |
Heat retention loss S* | W |
112,50 |
120,83 |
125,00 |
133,33 |
162,50 | - |
Tank classification* | C | C | C | C | C | - | |
Maximum permissible operating pressure | bar | 3 | |||||
Maximum permissible operating temperature | °C | 95 | |||||
Total weight (without solar exchanger) | kg | 117 | 141 | 160 | 166 | 274 | 328 |
Colour selection of the insulation | Silver | Silver / melon yellow | Melon yellow | ||||
I Insulation | mm | 100 | |||||
d Diameter (without insulation) | mm | 700 | 790 | 790 | 850 | 1,000 | 1,150 |
D Diameter (with insulation) | mm | 900 | 990 | 990 | 1,050 | 1,200 | 1,350 |
H Height (with insulation) | mm | 1,800 | 1,939 | 2,219 | 2,150 | 2,370 | 2,380 |
K Tilted height (without insulation) | mm | 1,810 | 1,970 | 2,240 | 2,200 | 2,420 | 2,430 |
Position height | Unit | SP 600 SPS 600 | SP 825 SPS 825 | SP 1000 SPS 1000 | SP 1100 SPS 1100 | SP 1650 SPS 1650 | SP 2200 SPS 2200 | |
---|---|---|---|---|---|---|---|---|
M0 | Coupling 6/4" | top | ||||||
M1 | mm | 1,595 | 1,718 | 1,998 | 1,910 | 2,095 | 2,080 | |
M2 | mm | 1,240 | 1,393 | 1,513 | 1,535 | 1,710 | 1,735 | |
M3 | Coupling 6/4" (without shim) | mm | 865 | 833 | 943 | 940 | 1,020 | 1,100 |
M4 | Coupling 6/4" | mm | 800 | 773 | 883 | 875 | 940 | 965 |
M5 | mm | 125 | 148 | 148 | 170 | 205 | 230 | |
M6 | 2" coupling | mm | - | - | - | - | - | 360 |
M7 | mm | - | - | - | - | - | 1,970 | |
T1 | Immersion sleeve 9 mm diameter (for temperature sensor) | mm | 1,510 | 1,628 | 1,908 | 1,820 | 2,005 | 1,985 |
T2 | mm | 1,340 | 1,493 | 1,613 | 1,635 | 1,810 | 1,835 | |
T3 | mm | 1,140 | 1,293 | 1,413 | 1,435 | 1,610 | 1,635 | |
T4 | mm | 965 | 933 | 1,043 | 1,040 | 1,120 | 1,200 | |
T5 | mm | 525 | 503 | 547 | 565 | 625 | 690 | |
T6 | mm | 230 | 253 | 253 | 275 | 310 | 325 |
Supplemental data for Solar SPS stratified buffer:
Technical data | Unit | SPS 600 | SPS 825 | SPS 1000 | SPS 1100 | SPS 1650 | SPS 2200 |
---|---|---|---|---|---|---|---|
Optimum solar collector area (in relation to tank volume) | m² | 3-7 | 4-9 | 5-11 | 6-12 | 8-18 | 11-25 |
Maximum solar collector area (as regards solar exchanger) | m² | 15 | 15 | 18 | 20 | 25 | 30 |
Maximum permissible operating pressure (solar exchanger) | bar | 16 | |||||
Maximum permissible operating temperature (solar exchanger) | °C | 110 | |||||
Total weight (with solar exchanger) | kg | 157 | 182 | 206 | 213 | 338 | 409 |
Heating area of solar exchanger | m² | 2.5 | 2.5 | 2.9 | 3.2 | 4.0 | 5.1 |
Volume of solar exchanger | l | 15.5 | 15.5 | 18.0 | 20.0 | 25.0 | 33.9 |
Pressure loss at 1000 l/h | mWs | 0.31 | 0.31 | 0.36 | 0.39 | 0.49 | 0.61 |
Position height | Unit | SPS 600 | SPS 825 | SPS 1000 | SPS 1100 | SPS 1650 | SPS 2200 | |
---|---|---|---|---|---|---|---|---|
S1 |
R1“ coupling | mm | 818 | 757 | 841 | 863 | 940 | 1.032 |
S2 | mm | 230 | 253 | 253 | 275 | 310 | 360 |
*The tank classification values specified by us for ETA SP/SPS and the heat retention losses apply only to the following combination:
ETA SP/SPS stratified buffer storage and insulation for ETA SP/SPS NeodulPlus
Just for the calculation of the energy labelling of packages - NOT VALID AS ENERGY EFFICIENCY FOR HOT WATER STORAGE TANKS
Technical data | Unit | SP 3000 | SP 4000 | SP 5000 |
---|---|---|---|---|
Volume | l | 3,000 | 4,000 | 5,000 |
Maximum permissible operating pressure | bar | 3 | ||
Maximum permissible operating temperature | °C | 95 | ||
Total weight (without solar exchanger) | kg | 397 | 477 | 582 |
Colour selection of the insulation | Melon yellow | |||
I Insulation | mm | 100 | ||
d Diameter (without insulation) | mm | 1,250 | 1,400 | 1,600 |
D Diameter (with insulation) | mm | 1,450 | 1,600 | 1,800 |
H Height (with insulation) | mm | 2,712 | 2,920 | 2,850 |
K Tilted height (without insulation) | mm | 2,740 | 2,950 | 2,890 |
Position height | Unit | SP 3000 | SP 4000 | SP 5000 | |
---|---|---|---|---|---|
M0 | Coupling 6/4" | mm | top | ||
M1 | 2" coupling | mm | 2,286 | 2,465 | 2,355 |
M2 | Coupling 6/4" | mm | 1,811 | 1,915 | 1,880 |
M3 | Coupling 6/4" (without shim) | mm | 1,176 | 1,300 | 1,245 |
M4 | Coupling 6/4" | mm | 1,041 | 1,145 | 1,110 |
M5 | 2" coupling | mm | 426 | 455 | 495 |
T1 | 9 mm immersion sleeve (for temperature sensor) | mm | 2,386 | 2,565 | 2,455 |
T2 | mm | 1,911 | 2,015 | 1,980 | |
T3 | mm | 1,711 | 1,815 | 1,780 | |
T4 | mm | 1,276 | 1,400 | 1,345 | |
T5 | mm | 766 | 835 | 835 | |
T6 | mm | 326 | 355 | 395 |