Index
1. Vitodens 050-W 1.1 Product description ....................................................................................................... 4
1.2 Specification ................................................................................................................. 6
■ Gas condensing system boiler .................................................................................. 6
■ Gas condensing combi boiler .................................................................................... 8
■ Variable speed heating circuit pump ......................................................................... 12
■ Residual heads of the integral circulation pump 19 and 25 kW ................................ 13
■ Standby instantaneous water heater (gas condensing combi boiler) ....................... 14
2. Vitodens 100-W, type B1GA 2.1 Product description ....................................................................................................... 16
2.2 Specification ................................................................................................................. 17
■ Gas condensing boiler .............................................................................................. 17
■ Vitodens 100-W, type B1GA 25 kW .......................................................................... 19
■ Vitodens 100-W, type B1GA 32 kW .......................................................................... 21
3. Separate DHW cylinders for Vito-
dens 050-W
3.1 Vitocell 100-W below the boiler .................................................................................... 23
■ Delivered condition ................................................................................................... 25
3.2 Vitocell 100-W adjacent to the boiler for dual mode DHW heating ............................... 26
■ Delivered condition ................................................................................................... 28
4. Installation accessories 4.1 Vitodens 050-W installation accessories ...................................................................... 29
■ Pre-plumbing jigs ...................................................................................................... 29
■ Valves/fittings ............................................................................................................ 29
■ Mounting frame ......................................................................................................... 30
■ Further accessories .................................................................................................. 31
■ Connections between the Vitodens and the DHW cylinder ...................................... 33
4.2 Installation accessories for Vitodens 100-W ................................................................. 34
5. Design information 5.1 Siting, installation .......................................................................................................... 34
■ Siting conditions for open flue operation (appliance type B) ..................................... 34
■ Siting conditions for room sealed operation (appliance type C) ................................ 35
■ Operation of the Vitodens in wet rooms .................................................................... 36
■ Electrical connection ................................................................................................. 36
■ Gas connection ......................................................................................................... 36
■ Minimum clearances ................................................................................................. 37
■ Installation of the Vitodens 050-W ............................................................................ 37
■ Replacing third party boilers with the Vitodens 050-W ............................................. 42
5.2 Connections on the water side ..................................................................................... 45
■ Connection on the DHW side .................................................................................... 45
5.3 Condensate connection ................................................................................................ 47
■ Condensate drain pipe and neutralisation ................................................................ 47
5.4 Hydraulic connection .................................................................................................... 48
■ General ..................................................................................................................... 48
■ Expansion vessels .................................................................................................... 50
5.5 Intended use ................................................................................................................. 50
6. Control unit 6.1 Layout and functions ..................................................................................................... 50
■ Modular design ......................................................................................................... 50
■ Functions .................................................................................................................. 51
■ Frost protection function ........................................................................................... 52
■ Heating curve setting (slope and level) ..................................................................... 52
■ Flow temperature sensor .......................................................................................... 52
■ Cylinder temperature sensor ..................................................................................... 52
6.2 Specification – control unit ............................................................................................ 53
6.3 Accessories for control unit ........................................................................................... 53
■ Vitotrol 100 RT .......................................................................................................... 54
■ Vitotrol 100, type UTA ............................................................................................... 54
■ Vitotrol 100, type UTDB ............................................................................................ 54
■ Vitotrol 100, type UTDB ............................................................................................ 55
■ Vitotrol 100, type UTDB-RF ...................................................................................... 55
■ Vitotrol 100, type UTDB-RF ...................................................................................... 56
■ Vitotrol 100, type UTDB-RF ...................................................................................... 56
■ Vitotrol 100, type UTDB-RF2 .................................................................................... 56
■ OpenTherm modulating room temperature controller ............................................... 57
■ Contact temperature limiter ....................................................................................... 57
■ Outside temperature sensor ..................................................................................... 57
■ Outside temperature sensor ..................................................................................... 58
■ Cylinder demand junction box ................................................................................... 58
■ Connectivity pack ...................................................................................................... 58
Index
2
VIESMANN
VITODENS
6195371