Updated technical data can be found in this document, supplemented by the Riello BX Burner Manual regarding commissioning checks and adjustments.

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Garey Hart
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1 Riello BX Low NOx Manual Addendum Introduction To ensure compliance with commission Regulation (EU) No 813/2013, implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to Ecodesign requirements for space heaters and combination heaters, Warmflow oil fired boilers placed on the market after 26 th September 20 will have NOx emissions below 120 mg/h fuel input in terms of GCV (Gross Calorific Value). In order to meet this requirement, the RDB 2.2 and RDB 3.2 burners previously fitted have been superseded by RDB 2.2 BX and RDB 3.2 BX items. These can be identified by the prefix BX on the burner identification label. Updated technical data can be found in this document, supplemented by the Riello BX Burner Manual regarding commissioning checks and adjustments. Affected appliances Appliances affected are identifiable by a RIELLO BX BURNER label affixed to the burner cover. New burner codes Warmflow Model designation New Burner Model Warmflow Part Number Riello Code 70 RDB2.2 BX 15/ RDB2.2 BX 21/ RDB2.2 BX 27/ RDB3.2 BX 33/ Page 1

2 5.4Technical Data B-Series Boilerhouse (BHE) This page replaces page 33 in the Boiler Manual 3307 Issue 6. MODEL B70HE B90HE B120HE Heat Output Heat Input , , , ,600 71, , , , , ,400 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX Head BX500 BX700 BX700 Secondary Air Damper B N/A N/A Conventional Flue Diameter mm in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES Oil Pump Pressure % CO2 Approx Fuel Flow Rate Recommended Maximum litres/h Gals/h ,600 3,000 size Combustion Head Position mm Flow Connection 1 BSP Female 1 BSP Female 1 BSP Female Return Connection 1 BSP Female 1 BSP Female 1 BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.7% 90.8% Factory Settings Highlighted in bold Page 2

3 5.4.2 U-Series Utility Pre-Wired (UHE) This page replaces page 34 in the Boiler Manual 3307 Issue 6. MODEL U70HE U90HE U120HE U150HE Heat Output Heat Input , , , ,600 71, , , , , , ,600 3, ,629, , , , ,681 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX RDB 3.2 BX Head BX500 BX700 BX700 BX700 Secondary Air Damper B N/A N/A N/A Conventional Flue Diameter mm in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES Danfoss Danfoss 80 ES 80 ES Oil Pump Pressure % CO2 Approx Fuel Flow Rate Combustion Head Position Recommended Maximum litres/h Gals/h Danfoss 80 H size mm Flow Connection 28mm Compression 28mm Compression 28mm Compression 1¼ BSP Female Return Connection 1 BSP Female 1 BSP Female 1 BSP Female 1¼ BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.8% 90.7% 90.3% Factory Settings Highlighted in bold Page 3

4 5.4.3 U-Series Utility Pumped (UPHE) This page replaces page 35 in the Boiler Manual 3307 Issue 6. MODEL UP70HE UP90HE UP120HE UP150HE Heat Output Heat Input , , , ,600 71, , , , , , ,600 3, ,629, , , , ,681 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX RDB 3.2 BX Head BX500 BX700 BX700 BX700 Secondary Air Damper B N/A N/A N/A Conventional Flue Diameter mm in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES Danfoss Danfoss 80 ES 80 ES Oil Pump Pressure % CO2 Approx Fuel Flow Rate Combustion Head Position Recommended Maximum litres/h Gals/h Danfoss 80 H size mm Flow Connection mm Copper mm Copper 28mm Compression 28mm Copper Return Connection 1 BSP Female 1 BSP Female 1 BSP Female 1¼ BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.8% 90.7% 90.3% Factory Settings Highlighted in bold Page 4

5 U-Series Utility System (USHE) This page replaces page 36 in the Boiler Manual 3307 Issue 6. MODEL US70HE US90HE US120HE Heat Output Heat Input , , , ,600 71, , , , , ,400 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX Head BX500 BX700 BX700 Secondary Air Damper B N/A N/A Conventional Flue Diameter mm in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES ,600 3,000 size Oil Pump Pressure % CO2 Recommended Maximum Approx Fuel Flow Rate litres/h Gals/h Combustion Head Position mm Flow Connection mm Copper mm Copper 28mm Compression Return Connection 1 BSP Female 1 BSP Female 1 BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.8% 90.7% Factory Settings Highlighted in bold Page 5

6 U-Series Utility Combi (UCHEE) This page replaces page 37 in the Boiler Manual 3307 Issue 6. MODEL UC70HEE UC90HEE UC120HEE Heat Output 50,000 60,000 71,650 71,560 80,000 99, , Heat Input 52,150 62,600 83, ,400,000 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX Head BX500 BX700 BX700 Secondary Air Damper B N/A N/A Conventional mm Flue Diameter in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES size Oil Pump Pressure % CO2 Recommended Maximum Approx Fuel Flow Rate Combustion Head Position Water Content litres/h Gals/h mm litres gals Boiler Weight Wet kg Domestic Hot Water (DHW) Production Minimum Inlet Dynamic Pressure for Maximum DHW Flow Rate Maximum Achievable DHW Flow Rate Unrestricted Unrestricted Unrestricted Maximum Recommended DHW Flow Rate litres/m gal/m Factory Set DHW Flow Rate litres/m gal/m Minimum DHW Flow Rate litres/m gal/m DHW Temperature Rise (at Maximum Output) 32 litres/min for 120 litre draw-off litres/min for 120 litre draw-off litres/min for 120 litre draw-off Pressure Relief Cold Water Mains Inlet Connection Minimum 15mm < 3.0Bar Minimum 15mm < 3.0Bar Minimum 15mm < 3.0Bar DHW Outlet Connection mm Copper mm Copper mm Copper Flow Connection mm Copper mm Copper mm Coper Return Connection 1 BSP Female 1 BSP Female 1 BSP Female SEDBUK Efficiency % 89.1% 89.1% Factory Settings Highlighted in bold Page 6

7 K-Series Kabin Pak Pre-Wired (KHE) This page replaces page 38 in the Boiler Manual 3307 Issue 6. MODEL K70HE K90HE K120HE K150HE Heat Output Heat Input , , , ,600 71, , , , , , ,600 3, ,629, , , , ,681 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX RDB 3.2 BX Head BX500 BX700 BX700 BX700 Secondary Air Damper B N/A N/A N/A Conventional mm Flue Diameter in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES Danfoss Danfoss 80 ES 80 ES Danfoss 80 H size Oil Pump Pressure % CO2 Recommended Maximum Approx Fuel Flow Rate litres/h Gals/h Combustion Head Position mm Flow Connection 28mm Compression 28mm Compression 28mm Compression 1¼ BSP Female Return Connection 1 BSP Female 1 BSP Female 1 BSP Female 1¼ BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.8% 90.7% 90.3% Factory Settings Highlighted in bold Page 7

8 5.4.5 K-Series Kabin Pak Pumped (KPHE) This page replaces page 39 in the Boiler Manual 3307 Issue 6. MODEL KP70HE KP90HE KP120HE KP150HE Heat Output Heat Input , , , ,600 71, , , , , , ,600 3, ,629, , , , ,681 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX RDB 3.2 BX Head BX500 BX700 BX700 BX700 Secondary Air Damper B N/A N/A N/A Conventional mm Flue Diameter in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES Danfoss Danfoss 80 ES 80 ES Oil Pump Pressure % CO2 Approx Fuel Flow Rate Combustion Head Position Recommended Maximum litres/h Gals/h Danfoss 80 H size mm Flow Connection mm Copper mm Copper mm Copper 28mm Copper Return Connection 1 BSP Female 1 BSP Female 1 BSP Female 1¼ BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.8% 90.7% 90.3% Factory Settings Highlighted in bold Page 8

9 K-Series Kabin Pak System (KSHE) This page replaces page 40 in the Boiler Manual 3307 Issue 6. MODEL KS70HE KS90HE KS120HE Heat Output Heat Input , , , ,600 71, , , , , ,400 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX Head BX500 BX700 BX700 Secondary Air Damper B N/A N/A Conventional Flue Diameter mm in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES ,600 3,000 size Oil Pump Pressure % CO2 Recommended Maximum Approx Fuel Flow Rate litres/h Gals/h Combustion Head Position mm Flow Connection mm Copper mm Copper mm Copper Return Connection 1 BSP Female 1 BSP Female 1 BSP Female Water Content litres gals Boiler Weight Wet kg SEDBUK Efficiency % 90.8% 90.7% Factory Settings Highlighted in bold Page 9

10 K-Series Kabin Pak Combi (KCHEE) This page replaces page 41 in the Boiler Manual 3307 Issue 6. MODEL KC70HEE KC90HEE KC120HEE Heat Output 50,000 60,000 71,650 71,560 80,000 99, , Heat Input 52,150 62,600 83, ,400,000 Burner RDB 2.2 BX RDB 2.2 BX RDB 2.2 BX Head BX500 BX700 BX700 Secondary Air Damper B N/A N/A Conventional mm Flue Diameter in Flue Gas Temp. 0 C Smoke Bacarach Kerosene Settings Nozzle make Danfoss 80 EH Danfoss 80 ES Danfoss 80 ES size Oil Pump Pressure % CO2 Recommended Maximum Approx Fuel Flow Rate Combustion Head Position Water Content litres/h Gals/h mm litres gals Boiler Weight Wet kg Domestic Hot Water (DHW) Production Minimum Inlet Dynamic Pressure for Maximum DHW Flow Rate Maximum Achievable DHW Flow Rate Unrestricted Unrestricted Unrestricted Maximum Recommended DHW Flow Rate litres/m gal/m Factory Set DHW Flow Rate litres/m gal/m Minimum DHW Flow Rate litres/m gal/m DHW Temperature Rise (at Maximum Output) 32 litres/min for 120 litre draw-off litres/min for 120 litre draw-off litres/min for 120 litre draw-off Pressure Relief Cold Water Mains Inlet Connection Minimum 15mm < 3.0 Bar Minimum 15mm < 3.0 Bar Minimum 15mm < 3.0 Bar DHW Outlet Connection mm Copper mm Copper mm Copper Flow Connection mm Copper mm Copper mm Copper Return Connection 1 BSP Female 1 BSP Female 1 BSP Female SEDBUK Efficiency % 89.1% 89.1% Factory Settings Highlighted in bold Page 10

11 Fiche Data This page replaces page 42 in the Boiler Manual 3307 Issue 6. Data according to EU Regulation 811/2013, supplementing Directive 2010/30/EU Model Type Boilerhouse Utility Utility Pumped Utility System Kabin Pak Kabin Pak Pumped Kabin Pak System Supplier Name Warmflow Supplier Model Identifier B70HE B90HE B120HE U70HE U90HE U120HE U150HE UP70HE UP90HE UP120HE UP150HE US70HE US90HE US120HE K70HE K90HE K120HE K150HE KP70HE KP90HE KP120HE KP150HE KS70HE KS90HE KS120HE Seasonal Space Heating Efficiency Class A A A A A A A A A A A A A A A A A A A A A A A A A Rated Heat Output, Prated () Seasonal Space Heating Efficiency, ηs (%) Annual Energy Consumption, QHE (GJ) Indoor Sound Power Level, LWA (db) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Specific Precautions Refer to Manual Model Type Utility Combi Kabin Pak Combi Supplier Name Warmflow Supplier Model Identifier UC70HEE UC90HEE UC120HEE KC70HEE KC90HEE KC120HEE Declared Load Profile XL XL XL XL XL XL Seasonal Space Heating Efficiency Class A A A A A A Water Heating Energy Efficiency Class A A A A A A Rated Heat Output, Prated () Annual Energy Consumption, QHE (GJ) Seasonal Space Heating Efficiency, ηs (%) Indoor Sound Power Level, LWA (db) N/A N/A N/A Specific Precautions Refer to Manual Page 11

12 Technical Parameters These next two pages replace pages 43 and 44 in the Boiler Manual 3307 Issue 6. Data according to EU Regulation 811/2013, supplementing Directive 2010/30/EU Model(s) B70HE, U70HE, UP70HE, US70HE, K70HE, KP70HE, KS70HE UC70HEE, KC70HEE Page 12 B90HE, U90HE, UP90HE, US90HE, K90HE, KP90HE, KS90HE UC90HEE, KC90HEE B120HE, U120HE, UP120HE, US120HE, K120HE, KP120HE, KS120HE UC120HEE, KC120HEE U150HE, UP150HE, K150HE, KP150HE Condensing boiler Yes Yes Yes Yes Yes Yes Yes Low-temperature boiler No No No No No No No B11 boiler No No No No No No No Cogeneration space heater No No No No No No No Combination space heater No Yes No Yes No Yes No Item Symbol Value Value Value Value Value Value Value Unit Rated heat output P rated Useful heat output At rated heat output and high-temperature regime P At 30% of rated heat output and low-temperature regime P Seasonal Space Heating Efficiency η s % Useful efficiency At rated heat output and high-temperature regime η % At 30% of rated heat output and low-temperature regime η % Auxiliary electrical consumption At full load el max At part load e lmin In standby mode P SB Other items Standby heat loss P stby Ignition burner power consumption P ign N/A N/A N/A N/A N/A N/A N/A Annual energy consumption Q HE GJ Sound power level indoors L WA db Emission of nitrogen oxides NO x <120 <120 <120 <120 <120 <120 <120 mg/h Space Heating Energy Efficiency Class A A A A A A A

13 Combination heaters Declared load profile N/A XL N/A XL N/A XL N/A Daily electricity consumption Q elec N/A N/A 0.8 N/A N/A h Annual electricity consumption AEC N/A 64 N/A 50 N/A 39 N/A h Water heating energy efficiency η wh N/A 82 N/A 82 N/A 81 N/A % Daily fuel consumption Q fuel N/A N/A N/A N/A h Annual fuel consumption AFC N/A 4947 N/A 4976 N/A 5048 N/A GJ Water Heating Energy Efficiency Class N/A A N/A A N/A A N/A Contact details Warmflow Engineering Ltd., Lissue Industrial Estate, Moira Road, Lisburn, Northern Ireland, BT28 2RF Page 13

14 BURNERS This page replaces page 82 in the Boiler Manual 3307 Issue 6. RDB BX Burner 1 Oil Pump 2 Air Damper Adjustment Screw 3 Reset Button with Lockout Lamp 4 Flame Sensor 5 Control Box 6 Pump Pressure Adjustment Screw 7 Extension for Gauge Connection 8 Combustion Head 9 Flange with Insulation Gasket 10 Air Inlet 11 Motor 12 Motor Ignition Capacitor 13 Fuel Suction Line 14 Return Line 15 Combustion Head Adjustment Handle Knob 16 Coil 17 Air Pressure Test Point Recirculating Pipe Page 14

15 Oil Pump This page replaces page 83 in the Boiler Manual 3307 Issue 6. The burner is supplied for use with a one pipe system. For use on a two pipe system, it is necessary to remove the return port plug and fit a small by-pass plug as shown. Page 15

16 Electrode Setting This page replaces page 83 in the Boiler Manual 3307 Issue 6. When removing or replacing the nozzle, move the electrodes forward to avoid the risk of damage. The electrodes are slackened by disconnecting the high voltage cables and unscrewing the retaining bolt which secures the complete electrode stabiliser unit (shown in the image below). This can then be moved out of the way. When work is complete, ensure the electrodes are reset as shown and secured by tightening the retaining bolt. Retaining Bolt The positioning of the electrodes should then be checked. The correct position for each burner is shown below. Model Dimension A Dimension B Dimension C RDB 2.2 BX 15/ RDB 2.2 BX 21/ RDB 2.2 BX 27/ RDB 3.2 BX 33/ Page 16

17 Air Damper Adjustment This page replaces page 84 in the Boiler Manual 3307 Issue 6. The air damper is set in factory. This regulation is purely indicative. Each installation however, has its own working conditions: actual nozzle output; positive or negative pressure in the combustion chamber, the need of excess air, etc. All these conditions may require a different air damper setting. Air Damper (A) 15/21 Burner Only Air Damper (A) The main air damper can be set in either of two positions. To set the positions of the damper, proceed as follows: Remove the secondary air damper (B) loosening the screws (1). Loosen the screw (2) and rotate the main air damper (A) to the required position. Retighten the screw (2) and put back the secondary air damper (B). Air Damper (B) Air Damper (B) The purpose of this damper is to perform a fine tuning of the inlet air. Tuning of this device is possible by turning the screw (3). Page 17

18 Combustion Head Adjustment If the heat output of the burner is to be changed from the factory default setting, then the combustion head must be repositioned in order to maintain low NOx levels. RDB 2.2 BX Adjustment Adjustments on the basis of the required output can be made by rotating the adjustment knob (1 complete revolution = 1 millimetre adjustment). RDB 3.2 BX Adjustment Adjustments on the basis of the required output can be made by rotating the adjustment screw. Distance between the = 3mm. Each complete rotation of the screw = 1mm. Page

19 RDB 2.2 BX Spares This page replaces page 94 in the Boiler Manual 3307 Issue 6. Page 19

20 No CODE DESCRIPTION No CODE DESCRIPTION Gasket Head Assembly Electrode Assembly Electrode Assembly Diffuser Disc Diffuser Disc Nozzle Holder Collar High Voltage Lead Air Damper Assembly Air Damper Assembly Fan Flame Sensor Capacitor 4.5μF Needle Valve Regulator Air Damper Pump O-Ring Filter O-Ring Connector Flexible Oil Line Tube Extension Coupling Coil-Shell & Knob Control Box 535RSE/LD Coil Lead Seals Kit Seals Kit Front Shield Air Intake Bulkhead Bulkhead Front Piece Cover Cylinder Cylinder Cylinder Shell & Knob Screw By-Pass Screw Connector Knob Power Connection Seal O-Ring O-Ring Seal O-Ring Seal O-Ring Coil Index Motor & Capacitor Protection Page 20

21 RDB 3.2 BX Spares This page replaces page 95 in the Boiler Manual 3307 Issue 6. Page 21

22 No CODE DESCRIPTION No CODE DESCRIPTION Gasket Head Assembly Electrode Diffuser Disc Nozzle Holder Collar High Voltage Lead Air Damper Assembly Fan Flame Sensor Capacitor Needle Valve Regulator O-Ring Pump O-Ring Seal Air Intake Bulkhead Flange Cover Cylinder Shell & Knob By-Pass Screw Connector Power Connection Seal Diffuser O-Ring O-Ring Seal O-Ring Coil O-Ring & Filter Connector Flexible Oil Line Tube Extension Coupling Coil-Shell & Knob Motor Protection Control Box Connection R Seals Kit Page

Light oil - kerosene burner

Installation, use and maintenance instructions Light oil - kerosene burner One stage operation CODE MODEL TYPE 3747455 G0KI 474T5 90403 (4) - 0/008 TECHNICAL DATA Thermal power output 95 3 kw 8 8 kg/h