Gas condensing boiler CGB-2-38/55

The CGB-2-38/55 was developed for applications with extended operating periods, including DHW service in multi-unit buildings. The robot-welded V4A finned tube heat exchangers optimized for 38 and 55 kW have 7 times the surface area of smooth tube heat exchangers. 

Compared with the predecessor model, the appliance offers 10% higher output capacity for applications with increased load requirements. The modulation range is also greater; the appliances can modulate down to 15% of the rated output, resulting in less frequent cycling and optimum combustion.

Cascades of up to five units support scalable output ranges and system operation across different load requirements. Its easy integration into building management systems, control of the pump system to optimize condensing operation, and straightforward conversion to natural gas (LL) or liquefied petroleum gas make the CGB-2-38/55 a solution suitable for a wide range of commercial heating applications.

The appliance combines compact dimensions with front-access service and maintenance access. Up to 55 kW in a compact space and yet still entirely accessible from the front. Minimum side spacing of just 4 cm allows installation in nearly any situation. The removable casing cover creates maximum open space for maintenance.

The combustion chamber incorporates materials selected for corrosion resistance and continuous operation. The cyclone inflow and selected combustion chamber materials support combustion performance during operation.

Despite the solid design, the appliance is easy to move at 47 kg. The hydraulic connections are entirely compatible with previous models. Existing boilers can be easily replaced thanks to intelligently planned accessories. The commissioning assistant helps ensure fast and easy configuration.

The low, open structure was developed in cooperation with expert technicians. Servicing can take place under system pressure, as usual. Thanks to the intelligent design, the seals require no silicone grease. In other words: The boiler design supports maintenance and servicing access during operation.

Everything already integrated: e.g. modulating HE pump, flow rate sensor and flue gas exhaust return damper (for flue gas cascades). WOLF’s own practical accessory and replacement parts management system is the perfect complement to the product range.

The WRS-2 control system with the BM-2 programming unit allows the heating system to be combined with the most recent and future generations of WOLF products (Hybrid+). Remote diagnostics and system monitoring functions are available via the Smartset portal and app with integrated WOLF Link home.