S-FX - Floor Standing Condensing Boiler - 70-320kW
The S-FX range comprises four floor standing models of a highly efficient, stainless steel, ultra low NOx emission gas condensing vertical tube bundle boiler offering an output range from 15kW to 320kW at 50 C/30 C (F/R) with 70kW, 125kW, 220kW and 320kW individual boiler nominal outputs. Each boiler offers NOx emissions of less than 24 mg/kWh (Class 6) in compliance with the maximum 2 credits available under BREEAM s New Construction 2018 1.0 Technical Manual SD5078 guidelines.
With Seasonal Efficiency across the range in excess of 96.75% to Part L calculations the entire range is also extremely fuel efficient due to the combination of near perfect flat-plate pre-mix burner combustion combined with the benefits of dual gas and water side turbulence around the uniquely shaped heat exchanger tubes.
The S-FX boiler offers a large water content design with no minimum flow rate removing the need for an additional primary side circulation pump. The S-FX 320kW boiler has generous water content of 550 litres. Additionally, the boiler can also be configured to store water at a predetermined temperature set-point to act as an on demand buffer of hot water so that, for example, a cascade of three S-FX 320 boilers could provide space heating as well as acting as a 1650 litre vessel. The boiler is flued from the bottom and has three positional options for rear hydraulic connections.
Specification Details
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Strebel Ltd is consulted before specifying.
Technical
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| Cascade Installation (?) | 2 - 6 units | |
| Cascade Output - Max (?) | 0.419 MW | |
| Efficiency - Nominal (Nett) (?) | 109.7 % | |
| Efficiency - Seasonal (Part L) (?) | 96.76 % | |
| Fuel Type (?) | LPG , Natural Gas | |
| IP Rating (?) | IP X0D | |
| Max Flow Temperature (?) | 95 °C | |
| Nominal Input - Nett (Max) (?) | 65.5 kW | |
| Nominal Output 50/30⁰C (?) | 15 - 69.9 kW | |
| Nominal Output at 80/60⁰C (Max) (?) | 64.4 kW | |
| NOx Class (?) | 6 | |
| NOx Emission (?) | 18 mg/kWh | |
| Operating Pressure (?) | 0.5 - 6 bar | |
| Power Supply (?) | 230v/50Hz | |
| Water Content (?) | 116 l | |
Other
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| Uniclass (?) | Pr_60_60_08 Boilers | |
Certifications & Ratings
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| BREEAM Credits (?) | 2 Credits | |
| BREEAM Description (?) | Qualifies for maximum 2 points under BREEAM 2018 NOx limits | |
| CE Marking (?) | ||
| ErP Rating (?) | A | |
Commercial
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| Product ID Number (?) | S-FX 70 | |
| Typical Building Sector (?) | Commercial , Domestic , Industrial | |
| Warranty (?) | 5 years | |
| Warranty Description (?) | 5-year standard heat exchanger warranty,2 years parts & labour on other components *conditions apply | |
Size & Weight
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| Depth (?) | 668 mm | |
| Dry Weight (?) | 180 kg | |
| Height (?) | 1760 mm | |
| Width (?) | 540 mm | |
Physical Properties
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| Installation (?) | Floor Standing | |
| Product Type (?) | Condensing Boiler | |
Materials & Finishes
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| Heat Exchanger Material (?) | Stainless Steel | |
Contact
Contact
Contact