Page 97 - Demo

Suitable for a range of projects including large domestic properties, small commercial premises and medium to large-sized applications.For more technical information, please visit pottertoncommercial.co.ukFloor Standing BoilerSirius three FS* Warranty subject to our commissioning.Cascade capability %u2013 find out more on page 985 year parts and labour warranty*Lightweight stainless steel heat exchangerTechnical information Sirius three FS 50Sirius three FS 70Sirius three FS 90Sirius three FS 110Sirius three FS 130Sirius three FS 150Sirius three FS 200Sirius three FS 250Product code 7612359 7612361 7612362 7612364 7689660 7689661 7689662 7689663PerformanceNominal heat output central heating operation @ 80/60%u00b0C (kW) 45.1 65.1 85.1 102 121.5 140.3 185.9 232.8Nominal heat output central heating operation @ 50/30%u00b0C (kW)48.6 70.3 91.8 110.2 130.6 150.9 200 250Part L2 seasonal efficiency97.10% 96.90% 97.00% 96.90% 97.30% 97.30% 97.50% 97.50%Efficiency %u2013 full load 100% GCV87.80% 87.60% 87.70% 87.60% 88.40% 88.40% 87.70% 87.40%Efficiency %u2013 part Load 30% GCV97.10% 96.80% 96.90% 96.80% 97.80% 97.80% 98.30% 98.30%GasGas consumption NG (m3/hr)4.9 7.07 9.25 11.1 13.1 15.1 20.2 25.4Gas consumption LPG (m3/hr)3.59 5.19 6.79 8.15 9.8 11.3 14.8 18.6HydraulicsNominal flow rate 20%u00b0C %u0394t (l/s)0.54 0.78 1.02 1.22 1.56 1.80 2.39 2.99Hydraulic resistance @ 20%u00b0C %u0394t (kPa)54 32 22 22 41 41 41 41Water content (litres) 3 5 9 10 10 11 13 15Maximum operating temperature (%u00b0C) 85 85 85 85 85 85 85 85Min/max water operating pressure (bar)1.0-4.0 1.0-4.0 1.0-4.0 1.0-4.0 1.0-6.0 1.0-6.0 1.0-6.0 1.0-6.0Gas boilers 97