Technical specification
Manufacturer Model No091551Brand NameVaillantCompatible WithECOmax 613/2 E (2001-2007), ECOmax 618/2 E (2001-2007), ECOmax 622/2 E (2001-2007), ECOmax 635 (2004-2008), ECOmax 635 E (2004-2008), ECOmax 646 (2006-2008) and ECOmax 665 (2006-2008)