Installation Instructions

Product description
6 720 645 817 (2010/09)
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4 Product description
4.1 Gas condensing boiler with aluminium heat exchanger
Fig. 21 Suprapur KBR ...
1 Boiler user interface
2 Modulating gas premix burner
3 High performance aluminium heat exchanger
4 Large inspection apertures
5 Neutralising system may be integrated
6 Variable speed combustion air fan
7 Burner control unit
The Suprapur is a floorstanding gas condensing boiler
with a high grade aluminium-silicon heat exchanger. Its
modulating gas premix burner enables clean combustion
and quiet operation. The modulation range from 25 % to
100 % or 30 % to 100 % provides optimum matching to
the required output. Balanced flue operation is possible
via an additional air inlet connector. Optimised heating
surfaces and specific water routing aid the achievement
of high standard seasonal efficiency [to DIN] and low
pressure drop on the water side.
The Suprapur gas condensing boilers are tested to
DIN-EN 677 and are CE-designated.
4.1.1 Types and output
The Suprapur gas condensing boiler is available as a
single boiler with output ranging from 120 kW to 280 kW
and as a factory-prepared cascade with output from
240 kW to 560 kW.
4.1.2 Possible applications
The Suprapur gas condensing boiler is suitable for all
heating systems compliant with DIN-EN 12828.
Preferred application areas are central heating and DHW
heating in apartment buildings as well as in municipal
and commercial buildings.
4.1.3 Benefits in brief
• Excellent price/performance ratio
• Easy system engineering, as no minimum water
circulation is required for single boiler systems
• Inexpensive operation due to high efficiency and low
power consumption
• Compact and light construction, consequently small
installation space
• Easy handling and easy and rapid installation through
complete pre-assembly at the factory and burner
tested at operating temperature, therefore ready for
use
• Extended application range through balanced flue
operation, quiet burner, and cascade operation with
up to eight boilers
• Easy and quick maintenance/service through large
cleaning apertures for the boiler block and the
condensate pan – easy burner removal
• Matching system technology from Junkers, e.g.
matching flue and ventilation accessories for easy and
rapid installation, as well as neutralising systems that
can be integrated, accessory no. 1605 and no. 1606
• Control systems for convenient operation of the
boiler and system plus easy monitoring by means of
the Service Diagnosis System (SDS)
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