deutschland en Press Trade press 2012 Weishaupt Thermo Condens oil-fired condensing boiler, WTC-OB (45 kW)

Weishaupt Thermo Condens oil-fired condensing boiler, WTC-OB (45 kW)

Weishaupt's innovative WTC-OB oil-fired condensing boiler was previously available in four sizes from 20 to 35 kW. A new 45 kW model now rounds off the top end of the boiler range.

Trade press

Apr 01, 2012

Weishaupt Thermo Condens oil-fired condensing boiler, WTC-OB (45 kW)

Weishaupt's innovative WTC-OB oil-fired condensing boiler was previously available in four sizes from 20 to 35 kW. A new 45 kW model now rounds off the top end of the boiler range.

There is a new mixing assembly, and a more powerful, energy-saving circulation pump. In common with the other boilers there is a high-efficiency aluminium heat exchanger, which allows for the boiler's compact size, and a two-stage purflam® burner. The difference in output between stage 1 and stage 2 is up to 14 kW, depending on the boiler rating.

The factory-preset Weishaupt purflam® blue burner is particularly economical in its use of fuel oil, thanks to its two-stage operation. The WTC-OB 45 has a burner rating of 35.1 kW on stage 1 and 43.4 kW on stage 2.

The high-capacity aluminium heat exchanger is insulated and has a high nett efficiency of 105 % (99.1 % gross). Large free cross-sections simplify boiler maintenance.

Electrical consumption has also been reduced to a minimum, and the electrical components consume less than 4 W when on standby. In addition, the WTC-OB 45 is equipped as standard with a high-efficiency pump. Over a 15-year operating period, compared to a three-stage pump, approximately 4000 kWh are saved. That is the equivalent of the annual electrical consuption of a four-person household.

The Weishaupt Thermo Condens oil-fired condensing boiler is approved for use with low-sulphur fuel oil (per DIN 51603-1) or a maximum 10 % blend of bio-oil (per DIN 51603-6). The admixture of ash-forming additives is not permitted. The low sulphur content of 50 mg/kg or less protects the environment and extends the service life of the heat-exchange surfaces.

Boiler operation is extremely quiet thanks to a combined flue-gas and air-inlet silencer. A special oil filter located within the housing precludes adverse oil odours. It has a sealed air separation system, that provides a controlled feed of the collected air via the burner nozzle into the combustion chamber.

Careful commissioning by qualified personnel is crucial to the reliable and economical operation of the WTC-OB oil-fired condensing boiler. The controller, with its integrated commissioning assistant, provides usesful help in providing the correct chronological control of the process. It begins with the venting of the hydraulics and the oil lines and concludes with the optimisation of burner stages 1 and 2.

The WTC-OB is easy to transport and install thanks to its compact dimensions and low weight. To help overcome particularly difficult obstacles, such as narrow, steep staircases, there are pipe couplings welded to the boiler frame into which pipe sections can be screwed to serve as carrying handles. The boiler is also suitably protected for transportation by hand truck.

The modular construction behind the WCM controller system with its shared-platform strategy offers benefits both to the end user and to the heating installer. There are specially tailored modules for the widest range of applications, communicating with each other via eBUS to guarantee precisely the right amount of heat and maximum convenience.

 

SystemEnergy efficiency class*
WTC-OB 18-A W-PEA A
WTC-OB 25-A W-PEA A
WTC-OB 30-A H-PEA A
WTC-OB 35-A H-PEA A
WTC-OB 45-A H-PEA A

*Per EU Regulation No. 811/2013 Heating, seasonal space heating energy efficiency class

WTC-OB (45 kW)
WTC-OB (45 kW)
The 45 kW WTC-OB oil-fired condensing boiler.
Print-ready image (1.0 MB)
WTC-OB (45 kW)
WTC-OB (45 kW)
Cut-away drawing of the WTC-OB 45 oil-fired condensing boiler.
Print-ready image (757.9 KB)

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