Potterton NXR3i Installation And Service Manual
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Potterton NXR3i Installation And Service Manual

Fuel oil/gas boilers
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To be kept by the user
May 2013
NXR3i
Fuel oil/gas boilers
Installation and Service Manual
Working towards
a cleaner future
heating specialists

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Summary of Contents for Potterton NXR3i

  • Page 1 To be kept by the user May 2013 NXR3i Fuel oil/gas boilers Installation and Service Manual Working towards a cleaner future heating specialists...
  • Page 2 The appliance complies with the standard model described in declaration of compliance . It is manufactured and distributed pursuant to the requirements of european directives. The original of the declaration of compliance is available from the manufacturer. NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 3: Table Of Contents

    Maintenance ...................21 28/08/2012 - 300029292-001-02 NXR3i...
  • Page 4 Spare parts - NXR3i ........

  • Page 5: Introduction

    1.2.1 Manufacturer's liability The liability of Potterton as the manufacturer may not be invoked in the following cases: - Failure to abide by the instructions on using the appliance. - Faulty or insufficient maintenance of the appliance.

  • Page 6: Homologations

    The boilers and hot water tanks are designed and manufactured in accordance with the sound engineering practice, as requested in article 3.3 of the directive 97/23/EC, it is certified by compliance with the directives 90/396/EC, 92/42/EC, 2006/95/EC and 2004/108/EC. NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 7: Safety Instructions And Recommendations

    The appliance should be on Summer or Antrifreeze mode rather than switched off to guarantee the following functions: - Anti blocking of pumps. - Frost protection. - Protection against corrosion on domestic hot water tanks fitted with a titanium anode. 28/08/2012 - 300029292-001-02 NXR3i...

  • Page 8: Technical Description

    3 Technical description 3.1 General description The boilers of the NXR3i range are pressurised hot water boilers - Heating body in cast iron. designed for connecting to a flue pipe which require a separate - KSF ISR or KSF CE control panel.

  • Page 9: Installation

    (hospitals, stores, etc.). liquefied hydrocarbon installations situated inside residential buildings and their annexes. Certificate of compliance (only concerns NXR3i - NF P 45-204 standards boilers fitted with a gas burner) Gas installation, (formerly DTU 61-1, gas installations: April 1982, In application of Article 25 of the Order of 27 April 2009 amending the addendum no 1: July 1984).

  • Page 10: Choice Of The Location

    Heating flow (Flange + Counter flange with collar to be adjustment possible: 0 to 40 mm welded) orifice Ø 2" 1/2 (Option: Ø 2") Heating return (Flange + Counter flange with collar to be welded) orifice Ø 2" 1/2 (Option: Ø 2") Boiler NXR3i-4 NXR3i-5 NXR3i-6 NXR3i-7 NXR3i-8 NXR3i-9...

  • Page 11: Position Of The Boiler

    4.3.2 Position of the boiler For the assembly and because of their design, NXR3i boilers require The dimensions (in mm) correspond to the minimum recommended no special base. Their closed furnace system means that the floor dimensions needed to ensure adequate accessibility around the need not have refractory properties.

  • Page 12: Ventilation

    New establishment: Refer to the order of 25/06/1980 (installations of more than 20 kW and less than or equal to 70 kW). Existing establishment: Refer to the order of 25/06/1980 (installations less than 70 kW). NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 13: Example Of An Installation

    The example of an installation shown below does not cover every possible configuration. Its sole aim is to draw your attention to the basic rules to be respected. NXR3i boiler with domestic hot water production using an independent tank 20 9 L000047...
  • Page 14 Sealed safety unit calibrated to 7 bar with indicator type discharge Independent domestic hot water tanks Domestic hot water loop pump (optional) Domestic hot water circulation loop return Domestic hot water outlet NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 15: Hydraulic Connections

    The first stage must be set to a minimum of 30% of the nominal stage. - Operation at modulated low temperature (minimum outlet temperature: 30°C); The first stage must be set to a minimum of 50% of the nominal stage. 28/08/2012 - 300029292-001-02 NXR3i...

  • Page 16: Safety Valve

    Minimum safety valve flowrate must be 700 kg/h. (b) = lb/h (c) = MBtu/h (d) = Kg/h 4.5.5 Connection of the water circuit for domestic use See: Domestic hot water calorifier instructions. NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 17: Chimney Connection

    In order for the boiler to operate correctly, it is imperative to respect the draught at the nozzle (= 0). Please note that NXR3i boilers have pressurised and tight furnaces and that the pressure at the nozzle must not exceed 0 mbar, unless special sealing precautions have been taken, for instance in order to connect a static condenser/regenerator.

  • Page 18: Fuel-Oil Or Gas Connections

    Do not add cold water suddenly into the boiler when it is make sure that the filled system is free of air before the hot. burner is turned on. NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 19: Commissioning

    6.2 Precautions required if the heating is stopped when there is a risk of freezing We recommend the use of a correctly dosed antifreeze agent to prevent to the heating circuit from freezing. If this cannot be done, drain the system completely. 28/08/2012 - 300029292-001-02 NXR3i...

  • Page 20: Checking And Maintenance

    The rating plate fixed on the side of the boiler during installation is Boiler type used to identify the boiler correctly and also provides the main specifications of the boiler. Manufacturing date Year of manufacture Week of manufacture Serial no. of the appliance NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 21: Maintenance

    - Unscrew the 4 closing nuts and open the furnace door. - Brush out the inside of the furnace. - Use a vacuum cleaner to remove any soot which has accumulated in the combustion chamber. - Close the door and replace the front panel. 28/08/2012 - 300029292-001-02 NXR3i...

  • Page 22: Positioning Of The Baffle Plates

    Positioning of the baffle plates The first two baffle plates in the 2 lower flue ways are fitted with stops allowing them to be positioned in the required emplacement. (1) Stop Baffles Flue ways NXR3i-4 NXR3i-5 NXR3i-6 NXR3i-7 NXR3i-8 NXR3i-9 Upper...

  • Page 23: Cleaning The Flue Gas Box

    - 5 l spray with separate reservoir, nozzle and connecting tube. The nozzles enable easy application at the back of the combustion chamber. Manual pressurisation of the reservoir. - Motor-assisted pressurisation spray with reservoir, nozzle and connecting tube. These sprays are intended for intensive use. 28/08/2012 - 300029292-001-02 NXR3i...

  • Page 24: Cleaning The Casing Material

    Use a soapy solution and a sponge only. Rinse with clean water and dry with chamois leather or a soft cloth. 7.5 Maintenance of the burner Refer to the instructions supplied with the burner. NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 25: Spare Parts - Nxr3I

    8 Spare parts - NXR3i To order a spare part, quote the reference number next to the part required 300029292-002-01 Boiler body Interpart Brooks House - Coventry Road - WARWICK - CV34 4LL - 08706 000454 08706 000545...
  • Page 26 Insulation Base frame NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...
  • Page 27 Casing 108a L000053 28/08/2012 - 300029292-001-02 NXR3i...

  • Page 28: Control Panels

    Control panels Refer to the Spare Parts list in the panel instructions KSF-ISR control panel KSF-CE control panel NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...
  • Page 29 200005033 Complete side panel right, 4 sections 9495-0050 Plug 1/4" 200005034 Complete side panel right, 5 sections 8219-0539 Guide rail for combustion chamber door 200005035 Complete side panel right, 6 sections 8219-0017 Upper baffle plate, 410 28/08/2012 - 300029292-001-02 NXR3i...
  • Page 30 5-section cable way 200004851 6-section cable way 200004852 7-section cable way 200004853 8-section cable way 200004854 9-section cable way 200004841 Cable protection Control panels Refer to the connection instructions supplied with the control panel.. NXR3i NXR3i 28/08/2012 - 300029292-001-01 28/08/2012 - 300029292-001-02...

  • Page 31: Warranty Terms

    Sub-assemblies such as motors, pumps, electric valves etc. are guaranteed only if they have never been dismantled. 28/08/2012 - 300029292-001-02 NXR3i...
  • Page 32 Our service organisation covers the whole of the UK to look after your needs for all Potterton Commercial products. Spares Our service office offers a wide range of specialised services including: Potterton Commercial spares are available nationwide through the interpart network of approved stockists.

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