Recoup Drain+ Duo Recoup WWHRS | Drain+ Duo | Installed as System A; System B; System C (delete as appropriate) | to (Add shower(s) install location) HORIZONTAL WASTE WATER HEAT RECOVERY FOR SHOWERS (WWHRS) Standard: WRAS Approved Performance: The Government's Standard Assessment Procedure for Energy Rating of Dwellings, 2012 (SAP 2012) Manufacturer: Recoup WWHRS Product reference: Drain+ Duo Installation method / Model Qualifier: System A; System B; System C (delete as per system(s) specified) Minimum Heat Recovery Efficiency (SAP 2012): System A= 40.4%; System B= 32.9%; System C= 36.6% (delete as appropriate) Minimum Utilisation Factor (SAP 2012, System A): 0.974 Heat Exchanger material: Copper (Double-walled, EN1717 compliant), 100% recyclable material at end of life Casing / Finish: Stainless Steel Size: 866 x 240 x 165mm Accessories: 1no Double Check Valve; 2no Isolator valves. Installation: According to manufactures instruction; to comply with Legionella Control Risk Assessment Guidance; and BS EN 1717:2000