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Product description
6 720 645 817 (2010/09)
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4.1.4 Characteristics and special features
Advanced boiler concept
Heat exchanger made from high grade
aluminium-silicon sand casting
Compact design and low weight
Reduced pressure drop on the water side for
optimised and simple system technology
With quiet modulating gas premix burner
Low power consumption through variable speed fan
With digital boiler and burner control units
Suitable for new installations and modernisation
projects
Balanced flue
Balanced flue operation possible (accessories)
High standard seasonal efficiency [to DIN] and
economic viability
The optimised heating surfaces enable good heat
transfer with low flue gas losses and high condensing
output. This ensures high efficiency and good
economic viability. The result is standard seasonal
efficiency [to DIN] of up to 108 %.
4-star energy efficiency category to DIN-EN 483
Environmentally responsible
Low nitrogen oxide emissions (standard emissions
factor < 45 mg/kWh). This corresponds to the highest
emissions category to DIN-EN 483 – category 5.
Advanced burner technology
Modulating operation with digital combustion
management
Very easy conversion to other gas types with only a
few steps
Matching system equipment
Cascade solutions with up to eight boilers via a single
control system
Matching flue gas and ventilation air systems
Neutralising systems, accessories no. 1605 and
no. 1606, can be integrated inside the boiler,
consequently small installation space
Supplied fully wired ready for connection
Easy connection to the heating system because of
fully assembled delivery from factory plus matching
accessories
4.2 Gas burner
4.2.1 Burner and burner control unit
A highly premixing modulating gas premix burner with
clean combustion is used in the Suprapur gas
condensing boiler. The gas burner comprises a fan, gas
valve and, subject to boiler size, several burner rods.
Features
Emissions, NO
x
<45mg/kWh and CO<15mg/kWh
(standard emissions factors) comply with the highest
emissions category – category 5 to DIN-EN 483
Suitable for natural gas H and L
Easy conversion to other natural gas types possible
Modulation range:
KBR 120/160-3 A: 25 % - 100 %
KBR 200/240/280-3 A: 30 % - 100 %
MKB 240/320-3 A: 12,5 % - 100 %
MKB 400/480/560-3 A: 15 % - 100 %
Burner control unit
Burner control unit
Burner control and monitoring
Safety functions for boiler operation
Flue gas temperature monitoring
Setting parameters and issuing fault codes via the
control system
Display and calling up operating, service and fault
displays via the Service Diagnosis System (SDS)
0-10 V interface (DDC systems)
Connection possible via the ICM cascade module
Output and temperature-dependent boiler controls,
selectable via settings on the ICM
Changeover or conversion to LPG operation
is not possible.
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