Mounting The Boiler And Making Connections; Removing The Front Panel; Mounting The Boiler On The Pre-Plumbing Jig Or Mounting Frame - Viessmann B1HF Installation And Service Instructions Manual
Gas fired condensing combination and system boiler, type wb1c, with modulating matrix cylinder burner and inox-radial heat exchanger for open flue and balanced flue operation. rated output range: 7.4 to 35 kw (20 pages)