Installation Instructions

Product description
6 720 645 817 (2010/09)
34
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.