Schüco PS 2.1 LF 50 US and LF 100 US
Large Area Heat Transfer Station
Schüco PS 2.1 Large Area Heat Tranfer Station
The Schüco PS 2.1 LF 50 US and PS 2.1 LF 100 US Large Area Heat Transfer Station is a compact hydraulic pump group for large solar installations. The compact stations contain an integrated solar heat exchanger and pumps for the solar and buffer circuits. The two variants of the PS 2.1 large installation transfer station differ depending on the size of the collector field. The variants for low-flow operation (15 l / m²h) are suitable for large solar thermal installations with a collector area of up to 1,080 square feet (100 m²).
Key benefits
- Heat exchanger using the reverse flow principle for maximum transfer output
- Frost protection is ensured by means of the control unit - no frost protection valve required
- Different performance classes for collector areas of 540 to 1,080 square feet (50 to 100 m2)
- Adapted to Schüco collector configuration
Download Data Sheet:
Schüco PS 2.1 LF 50 US and LF 100 US (pdf, 294 KB)
| Schüco Commercial Transfer Stations | ||
| Product name | PS 2.1 LF-50 US | PS 2.1 LF-100 US |
| Schüco article number | 232 325 | 232 326 |
| Equipment | ||
| Air separator | External (optional) | Integrated |
| Changeover valve cylinder flow | External (optional) | External (optional) |
| Volume flow (adjustable, solar circuit) | With flow check up to 5.28 gpm (20 l /min) | With flow check up to 10.56 gpm (40 l/min) |
| Volume flow (adjustable, buffer circuit) | ||
| Performance | ||
| Max. absorber surface | 540 square foot (50 m²) | 1080 square foot (100 m²) |
| Max. volume flow (solar circuit) | 3.3 gpm | 6.6 gpm |
| Max. volume flow (buffer circuit) | 3.1 gpm | 6.2 gpm |
| Combinable collectors | ||
| Collector hydraulics | Meander collection piping | Meander collection piping |
| Measurements and weight | ||
| Height (with insulation casing) | 33.9 inch (861 mm) | 43 inch (1092 mm) |
| Width (with insulation casing) | 19.7 inch (501 mm) | 22.1 inch (562 mm) |
| Depth (insulation sections) | 10.1 inch (255 mm) | 10.1 inch (255 mm) |
| Between centers, primary flow/return | 7 inch (501 mm) | 5.7 inch (145 mm) |
| Between centers, secondary flow/return | 3.5 inch (90 mm) | 3.5 inch (88 mm) |
| Weight | 80.46 lbs | 108.4 lbs |
| Pipework | ||
| A - Solar return flow |
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| B - Solar flow | ||
| C - Cylinder flow precedence | ||
| D - Cylinder flow subordinate | ||
| E - Cylinder return flow | ||
| F - Expansion vessel | G 3/4 | G 3/4 |
| Unit spacing A-B | 7.1 inch (180 mm) | 5.7 inch (145 mm) |
| Unit spacing C-D-E | 3.54 inch (90 mm) | 3.46 inch (88 mm) |
| Temperature and pressure | ||
| Thermometer | 32 - 248 °F (0 - 120 °C) | 32 - 248 °F (0 - 120 °C) |
| Manometer | 0 - 145 psi (0 - 10 bar) | 0 - 145 psi (0 - 10 bar) |
| Safety valve SOL | 87 psi (6 bar) | 87 psi (6 bar) |
| Heat exchanger type | External flat plate | |
| Material | Copper brazed / stainless steel | |