Table Of Contents - Buderus 800 User Manual

The boiler meets the basic requirements of the
appropriate standards and directives.
Conformity has been substantiated by the
proper documents which - together with the
declaration
of conformity - are filed with the manufacturer.
Subject to technical modifications !
Constant development efforts may result in minor deviations in
illustrations, functional steps and technical data.
Updating the documentation
If you have suggestions for improvement or have found
discrepancies, please do not hesitate to contact us.
2 Wall-mounted condensing gas boiler Buderus 800 - Subject to modifications resulting from technical improvements!
Contents
1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.1 Dimensions, connections and assembly . . . . . . . . .6
1.2 Boiler assembly - exploded view. . . . . . . . . . . . . . .8
1.3 Flue Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.4 Items supplied with unit. . . . . . . . . . . . . . . . . . . . .11
1.5 Gas boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.6 Water circulation system . . . . . . . . . . . . . . . . . . . .12
1.7 Pipe connections. . . . . . . . . . . . . . . . . . . . . . . . . .12
1.8 Flue installation . . . . . . . . . . . . . . . . . . . . . . . . . . .15
1.9 Electrical connections . . . . . . . . . . . . . . . . . . . . . .18
2 Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . .23
2.1 Preparing the boiler for operation . . . . . . . . . . . . .23
2.2 Start-up work. . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
3.1 Preparing the heating boiler for inspection . . . . . .34
3.2 Checking for internal leaks . . . . . . . . . . . . . . . . . .34
3.3 Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . .34
4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
4.1 Cleaning the heat exchanger, burner and syphon 35
5 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
5.1 Operating codes . . . . . . . . . . . . . . . . . . . . . . . . . .39
5.2 Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
5.3 Checking and replacing parts . . . . . . . . . . . . . . . .48
6 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
6.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . .63
6.2 Residual pump lift for wall-hung gas boilers . . . . .65
6.3 Short list of spare parts . . . . . . . . . . . . . . . . . . . . .66
7 Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
7.1 Start-up report . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
7.2 Inspection and service reports . . . . . . . . . . . . . . .68