STE 5021 FW US
Large Area Heat Transfer Station
Schüco STE 5021 FW US
The Schüco STE 5021 FW Large Collector Area Heat Transfer Stations a compact hydraulic pump group for large solar installations. The compact stations contain an integrated solar heat exchanger and pumps for the solar and domestic hot water circuits The large installation transfer station is suitable for solar thermal installations with a collector area of up to 540 sq. ft (50 m2).
Key Features
- Compact construction for simple and space-saving installation
- Heat exchanger using the reverse fl ow principle for maximum transfer output
- Thermal insulation sections reduce heat losses
- Adapted to Schüco manifoldserpentine confi guration
Download Data Sheet:
Schüco STE 5021 FW US (pdf, 230 KB)
Technical Data
| Application area | STE 5021 FW US (LF-50DW) |
| Schüco article number | Internal |
| Equipment | |
| Size | 84.7 × 49.3 × 3.6 in. (2152 × 1252 × 93 mm) |
| Changeover valve cylinder flow | External (optional |
| Volume flow (adjustable, solar circuit) | With flow check 3.5 gpm |
| Volume flow (adjustable, buffer circuit) | |
| Performance | |
| Max. absorber surface | 540 square foot (50 m2) |
| Max. volume flow (solar circuit) | 3.3 gpm |
| Max. volume flow (buffer circuit) | 3.1 gpm |
| Combinable collectors | |
| Collector hydraulics | Manifold-serpentine |
| Measurements and weight | |
| Height (with insulation casing) | 25.6 in |
| Width (with insulation casing) | 15.6 in |
| Depth (insulation sections) | 9.8 in |
| Between centers, primary flow | 5.45 in |
| Between centers, secondary flow | 3.5 inch (90 mm) |
| Weight | 80.46 lbs |
| Pipework | |
| Primary input |
3/4“ |
| Primary output | |
| Secondary input | |
| Secondary output | |
| Cylinder return flow | |
| Expansion vessel | G 3/4 |
| Temperature and pressure | |
| Thermometer | 32 – 320 °F |
| Manometer | 0 – 140 psi |
| Safety valve | 87 psi |
| Heat exchanger type | Double wall vented |
| Material | Copper brazed stainless steel |