Installation and operating instruction
Gas condensing unit WTC-GB 15-B Compact and WTC-GB 25-B Compact
83309302 1/2018-05 La
2-196
3.1 Type key ....................................................................................................................... 10
3.2 Serial number .............................................................................................................. 11
3.3 Condensing unit function ......................................................................................... 12
3.3.1 Water, air and flue gas carrying components .............................................. 12
3.3.2 Electrical components ....................................................................................... 13
3.3.3 Safety and monitoring functions ..................................................................... 14
3.3.3.1 Flow sensor eSTB / flue gas sensor ....................................................... 14
3.3.3.2 Multifunction sensor VPT ........................................................................... 15
3.3.4 Combustion control (System SCOT®) ........................................................ 16
3.3.5 Program sequence ............................................................................................. 18
3.4 Fresh water storage tank function .......................................................................... 20
3.5 Technical data ............................................................................................................. 22
3.5.1 Approval data ...................................................................................................... 22
3.5.2 Electrical data ..................................................................................................... 22
3.5.3 Ambient conditions ............................................................................................ 22
3.5.4 Fuels ...................................................................................................................... 22
3.5.5 Emissions ............................................................................................................. 23
3.5.6 Rating .................................................................................................................... 24
3.5.7 Hydraulic data ..................................................................................................... 25
3.5.8 Flue gas system data ......................................................................................... 28
3.5.9 EnEV Product Characteristics ........................................................................ 28
3.5.10 Dimensions ........................................................................................................ 29
3.5.11 Weight ................................................................................................................ 31
3.5.12 Environmental characteristics/Recycling ................................................... 31
4.1 Installation conditions ................................................................................................ 32
4.2 Installing fresh water storage tank ......................................................................... 33
5.1.1 Water hardness .................................................................................................. 34
5.1.2 Fill water quantity ............................................................................................... 36
5.1.3 Treat the fill and top-up water ......................................................................... 37