Grant EFCON5070IND Design, Installation And Servicing Instructions
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Grant EFCON5070IND Design, Installation And Servicing Instructions

Internal condensing oil boiler range
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Grant Eurofl ame Condensing
Internal Condensing Oil Boiler
Range
Installation and Servicing Instructions
IRL | DOC 0022 | Rev 01.10 | MARCH 2022

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  • Page 1 Grant Eurofl ame Condensing Internal Condensing Oil Boiler Range Installation and Servicing Instructions IRL | DOC 0022 | Rev 01.10 | MARCH 2022...
  • Page 2 This manual is accurate at the date of printing but will be superseded and should be disregarded if specifi cations and/or appearances are changed in the interests of continued product improvement. However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (Ireland) ULC, the author or others involved in its publication.

  • Page 3: Table Of Contents

    CONTENTS INTRODUCTION FLUE SYSTEM AND AIR SUPPLY How a condensing boiler operates Air supply Boiler description Conventional fl ue systems Flue options Connecting a conventional fl ue Boiler components Balanced fl ue systems Prepare the wall TECHNICAL DATA Flue clearances Boiler technical data Sealed system data COMMISSIONING...

  • Page 4: Introduction

    Grant ‘Orange’ and ‘Green’ fl ue systems. Refer to Figure A fl exible vertical balanced fl ue system designed to be fi tted inside 9-4 for details. This fl ue system is suitable for all Grant Eurofl ame an existing masonry chimney.

  • Page 5: Boiler Components

    Please note that the ‘mains on’ neon does not RBS36XS) and 3/8” to 1/4” BSP male adaptor (product code: necessarily indicate that the burner is fi ring. Z3003602) are available to purchase from Grant, for two-pipe oil ! NOTE ! supply systems.

  • Page 6: Technical Data

    TECHNICAL DATA BOILER TECHNICAL DATA Table 2-1: Boiler technical data Utility Utility System Units 15/21 21/26 26/35 15/21 21/26 26/35 litre Water content Weight (dry) 21.0 26.0 35.0 21.0 26.0 35.0 Maximum heat output (Kerosene) Btu/h 71,600 88,700 119,400 71,600 88,700 119,400 Minimum fl...

  • Page 7: Burner Settings

    The above settings may have to be adjusted on site for the correct operation of the burner. Gas Oil is NOT suitable for use with Grant Eurofl ame boiler range The fl ue gas temperatures given above are ± 10%.

  • Page 8: Boiler Dimensions

    BOILER DIMENSIONS Page 8 Section 2: Technical Data...
  • Page 9 Section 2: Technical Data Page 9...

  • Page 10: Oil Storage And Supply System

    BS 5410-2. • ¼ʺ isolating valve (product code: ISOLATION1/4) Oil storage tanks should comply with the following standards: These are available to purchase from Grant. • Plastic tanks OFT T100 Metal braided flexible fuel hoses should be replaced ANNUALLY •...
  • Page 11 Figure 3-1: Single pipe (gravity) system Figure 3-2: Two pipe system Figure 3-3: De-aeration device system Key to oil supply diagrams Oil tank External wall Burner Isolating valve Oil fi lter (15μm max. fi ltration size) Non-return valve Oil strainer Fire valve sensor De-aerator* Fire valve to BS5410-1...

  • Page 12: Burner Oil Connection

    • ¼ʺ isolating valve (product code: ISOLATION1/4) port and that the plastic plug is discarded. These are available to purchase from Grant. The burner fuel pump is supplied factory set for use with a single pipe (gravity) oil supply system.
  • Page 13 Fit the ¼ʺ isolating valve (supplied with the boiler) to the end of the rigid oil supply pipe using a fi tting to suit the pipe size These are available to purchase from Grant. and type (not supplied). Connect the oil supply to the burner oil pump as follows: Connect the other end of the fl...

  • Page 14: Installation

    To achieve the maximum effi ciency possible from the Grant Installation of a Grant Eurofl ame boiler must be in accordance Eurofl ame boiler, the heating system should be designed to the with the following recommendations: following parameters: •...

  • Page 15: Pipework Materials

    4.5 PIPEWORK MATERIALS Carefully remove the packaging from the boiler and remove it The Grant Eurofl ame boiler is compatible with both copper and from the transit pallet. plastic pipe. Where plastic pipe is used it must be of the oxygen Pull the front panel forward at the top to disengage the fi...

  • Page 16: Filling The Heating System

    For long term protection against corrosion and scale, after cleaning/fl ushing a suitable inhibitor should be added to the system water, such as Grant G1000, Sentinel X100 or Fernox MB-1, in accordance with the manufacturers’ instructions. Failure to follow the above will invalidate the guarantee.

  • Page 17: Pipe Connections

    PIPE CONNECTIONS WATER CONNECTIONS The Flow and Return pipework can be routed to either side of the boiler, dependant on the type and direction of the fl ue system Heating flow used. For condensate disposal pipework refer to Section 6. Heating return A drain cock is fi...

  • Page 18: Condensate Disposal

    CONDENSATE DISPOSAL GENERAL REQUIREMENTS PIPEWORK When in condensing mode the Grant Eurofl ame boilers produce Condensate disposal pipework must be plastic (plastic waste or condensate from the water vapour in the fl ue gases. overfl ow pipe is suitable). This condensate is moderately acidic with a pH value of around ! NOTE ! 3.27 (similar to orange juice).

  • Page 19: Condensate Soakaway

    fl ooded drains when the condensate disposal is via a gulley or soil stack, is not covered by the Grant product CONDENSATE DISPOSAL PIPEWORK guarantee.

  • Page 20: External Condensate Trap Fitting

    Disconnect condensate discharge hose from heat exchanger and condensate trap and remove it from the boiler. Rear panel Replace with condensate trap hose (Grant product code: VBS107). Pass the straight connector end of the hose through the new hole in the left hand casing panel. Push the straight connector fi...

  • Page 21: Sealed Systems

    SEALED SYSTEMS SEALED SYSTEM REQUIREMENTS ! NOTE ! All Grant Eurofl ame Condensing models are suitable for use with sealed systems complying with the requirements of BS EN 12828, BS EN 12831 and BS EN 14336. Ensure that the expansion vessel used is of suffi cient size The system must be provided with the following items: for the system volume.

  • Page 22: Filling The Sealed System

    7.1.4 FILLING LOOP Ensure that the fl exible fi lling loop is connected and that the double check shut off valve connecting it to the water supply Provision should be made to replace water lost from the is closed. A valve is open when the operating lever is in line system.

  • Page 23: System Models

    SYSTEM MODELS ! NOTE ! All System models have the following sealed system components factory fi tted (refer to Figure 7-3): • A diaphragm expansion vessel complying with BS 4814, pre- The air pressure in the vessel must be checked annually. charged at 1.0 bar.

  • Page 24: Electrical

    Green/Yellow to mains earth (terminal 3) ! NOTE ! GENERAL Grant Eurofl ame Condensing models require a ~230V 1ph 50Hz supply. It must be protected by a 5 Amp fuse. Ensure that the wire link, between terminals 5 and 8 on the Refer to Figure 8-1 for typical control system wiring diagrams for boiler terminal block is fi...

  • Page 25: Control System Wiring Diagrams

    CONTROL SYSTEM WIRING DIAGRAMS Grey Grey Cylinder Brown Motor Blue Stat 240V Room Green/Yellow 50HZ Stat 2 1 3 L N E 2-Port Zone Valve Brown Motor Blue Green/Yellow 2-Port Zone Valve Green/Yellow Blue Orange Brown Orange Wiring Centre Green/Yellow Pump Blue Link...

  • Page 26: Boiler Control Panel Wiring Diagrams

    BOILER CONTROL PANEL WIRING DIAGRAMS Brown Pump Blue (System Only) Green/Yellow Mains Supply: Green/Yellow Green/Yellow Use 2 pole Supply Blue Blue isolator with power "ON" Burner Brown Brown indicator Boiler Terminal Block Link Brown Green/Yellow Green/Yellow Blue Green/Yellow Blue Brown Green/Yellow Green/Yellow Brown...

  • Page 27: Flue System And Air Supply

    fi red condensing boilers. The top and bottom of the annular space must be sealed. Grant recommends the use of the Grant ‘Orange’ fl ue system, specifi cally designed for the Eurofl ame range of condensing boilers.
  • Page 28 Regulations - conventional fl ue systems must have a fl ue pointing vertically upwards, following the direction of the data plate. A suitable data plate is supplied with the Grant fl ue gases. Failure to comply with this instruction could Orange fl...
  • Page 29 100mm dia. must be installed WXA250/100 125mm dia. vertically WXA250/125 Extension 45 elbow Locking band Boiler flue connector Boiler Figure 9-3: Grant Orange fl ue system in a typical brick chimney Section 9: Flue System and Air Supply Page 29...

  • Page 30: Connecting A Conventional Flue

    Available in Short (for single thickness brick walls) and Standard kits. If the Grant ‘Orange’ fl ue system is being used – follow the Extensions are available which extend the fl ue by 225 mm, 450 instructions supplied with the fl ue kit.
  • Page 31 The maximum fl ue length for this system - from the top of the together, i.e. any joint that does not slide. boiler fl ue outlet to the terminal - is 12 metres for all Grant • Type 2. A white painted band - to cover the sliding joint on Eurofl...
  • Page 32 Support clamp compensate for this. Terminal upstand The Grant Red system fl exible stainless steel liner is directional. Top plate The arrows marked on the inner liner MUST be pointing vertically upwards, following the direction of the fl ue gases. Failure to comply with this instruction could lead to a leakage of condensate from the fl...
  • Page 33 Vertical terminal kit GTV90 (15 - 26 kW) GTV200 (26 - 70 kW) 45 elbow kit GE45/90 (15 - 26 kW) GE45/200 (26 - 70 kW) High level terminal kit GTH90 (15 - 26 kW) GTH200 (26 - 70 kW) Typical Extended wall bracket Wall bracket...

  • Page 34: Prepare The Wall

    PREPARE THE WALL 9.5.2 HIGH LEVEL AND VERTICAL BALANCED FLUE 9.5.1 LOW LEVEL BALANCED FLUE If the boiler is to be used with the high level balanced fl ue (White If the boiler is to be used with a low level balanced fl ue (Yellow system) make the hole in the wall as shown in Figure 9-11.
  • Page 35 Page intentionally left blank Section 9: Flue System and Air Supply Page 35...

  • Page 36: Flue Clearances

    FLUE CLEARANCES Page 36 Section 9: Flue System and Air Supply...
  • Page 37 Further guidance can be obtained from BS 5410-1:2019, OFTEC Book 4 (Installation) and Approved Document J. Grant fl ue products are fully compliant with the CE (Communauté Européenne/European Community) standards having undergone rigorous product testing. Section 9: Flue System and Air Supply...

  • Page 38: Commissioning

    10 COMMISSIONING To ensure safe and effi cient operation, it is essential that a Grant Eurofl ame Condensing boiler is commissioned as detailed in the following procedure. To access the controls, remove the front panel from the boiler (pull forward at the top and then lift off ).

  • Page 39: Before Switching On

    10.1 BEFORE SWITCHING ON 10.2 BURNER SETTINGS: RDB2.2 BX BURNERS Ensure the boiler is isolated from the electrical supply and the boiler On/Off switch is set to OFF. With the burner removed from the boiler: Check that the high limit thermostat bulb and boiler Remove the burner head.
  • Page 40 ! NOTE ! ! NOTE ! The distance between the end of the burner head and the Do not overtighten the fi xing screw as this may damage front face of the diff user (D) MUST be correctly set for the the electrode insulator.

  • Page 41: Air Adjuster Disc: 15/21 And 21/26 Models Only

    10.3 AIR ADJUSTER DISC: 10.4 SWITCHING ON 15/21 AND 21/26 MODELS ONLY Check that all system controls are calling for heat and turn the boiler thermostat to maximum. ! NOTE ! Switch on the electricity supply to the boiler. Set the boiler On/Off switch to ON. A neon on the switch lights when it is in the ON position.

  • Page 42: Running The Boiler

    10.5 RUNNING THE BOILER 10.7 COMPLETION Re-light the boiler and allow it to run for at least 20 minutes. With the system hot, check again for leaks, rectifying where necessary. Drain the system while it is hot to complete the Check the smoke number, if it is 0-1 then it is satisfactory.

  • Page 43: Servicing

    11 SERVICING To ensure safe and effi cient operation it is essential that a Grant Remove the burner fi xing nut (located at the top of the Eurofl ame Condensing boiler is serviced at regular intervals of no mounting fl ange) and withdraw the burner from the boiler. If longer than 12 months.
  • Page 44 Figure 11-1: Baffl es (15/21 & 21/26 models) Figure 11-2: Baffl es (26/35 models) Position in vertical plane IMPORTANT: The ends of the turbulators must be vertical Figure 11-3: Turbulators Page 44 Section 11: Servicing...

  • Page 45: Cleaning The Burner: Rdb2.2 Bx Burners

    11.4 CLEANING THE BURNER: Photocell RDB2.2 BX BURNERS The photocell is a push-fi t in the front of burner body. Refer to Section 11.8. With the burner removed from the boiler: Holding the body of the photocell and NOT the cable, Burner head, nozzle and diff...

  • Page 46: Adjusting The Diffuser

    11.6 AIR ADJUSTER DISC: 11.5 ADJUSTING THE DIFFUSER 15/21 AND 21/26 MODELS ONLY Adjust the diff user position. Refer to Figure 10-5. ! NOTE ! Refer to Section 10.3. 11.7 RECOMMISSIONING The distance between the end of the burner head and the front face of the diff...

  • Page 47: Burner Components Rdb2.2 Bx Burners

    11.8 BURNER COMPONENTS RDB2.2 BX BURNERS Item Description Item Description Oil pump Air inlet Air damper adjustment screw Motor Reset button with lockout lamp Motor ignition capacitor Photocell Fuel suction line Control box Return line Pump pressure adjustment screw Combustion head adjustment handle Extension for gauge connection Coil Combustion head...

  • Page 48: Fault Finding

    12 FAULT FINDING 12.1 BOILER FAULT FINDING Always isolate the electricity supply to the boiler before working on the boiler. Table 12-1: Boiler fault fi nding Fault Remedies Boiler will not start: Ensure that an adequate supply of fuel is available and that the fuel supply valve is open.

  • Page 49: Burner Fault Finding - Riello Burners

    12.2 BURNER FAULT FINDING - RIELLO BURNERS Section 12: Fault Finding Page 49...

  • Page 50: Spare Parts

    13 SPARE PARTS 13.1 BOILER PARTS LIST Table 13-1: Boiler parts list Description Grant product code Double pole switch ZSWDPN Baffl e set (complete) - 15/21 & 21/26 EFCBS5090 Baffl e set (complete) - 26/35 EFCBS90120 Turbulator baffl e - 360 mm (single) - all models...

  • Page 51: Riello Rdb 2.2 Bx Burners

    13.3 RIELLO RDB 2.2 BX BURNERS This section gives exploded views of the Riello burners in the Grant Eurofl ame boilers, and parts lists associated with them. Section 13: Spare Parts Page 51...
  • Page 52 Page 52 Section 13: Spare Parts...
  • Page 53 Section 13: Spare Parts Page 53...

  • Page 54: Declaration Of Conformity

    Grant Eurofl ame Condensing External 15-21, 21-26 and 26-35 Grant Eurofl ame Condensing External System 15-21, 21-26 and 26-35 Note: All Grant system variants are supplied with glandless high effi ciency integrated circulators In accordance with the following Directives: 2006/95/EEC Conforms with the safety objectives of the Low Voltage Directive and its amending directives.

  • Page 55: Health And Safety Information

    15 HEALTH AND SAFETY INFORMATION 15.3 KEROSENE AND GAS OIL FUELS Under the Consumer Protection Act 1987 and Section 6 of the Health & Safety at Work Act 1974, we are required to provide (MINERAL OILS) information on substances hazardous to health (COSHH Known Hazards: Regulations 1988).

  • Page 56: End Of Life Information

    For guidance on the disassembly of the boiler refer to the information given in the Servicing section of the Installation & Servicing Instructions provided with the boiler. RECYCLING Many of the materials used in Grant oil boilers can be recycled, these are listed in the table below: COMPONENT MATERIAL...

  • Page 57: Product Fiche

    17 PRODUCT FICHE Product fi che concerning the COMMISSION DELEGATED REGULATIONS (EU) No 811/2013 of 18 February 2013 (EU) No 813/2013 of 2 August 2013 Eurofl ame Condensing Utility Symbols Unit Condensing boiler Low temperature boiler B1 boiler Combination heater Rated heat output Prated Useful heat output...

  • Page 58: Guarantee

    18 GUARANTEE You are now the proud owner of a Grant Vortex condensing boiler Free of charge repairs on the burner(For the fi rst twelve from Grant Engineering (Ireland) ULC which has been designed months) to give years of reliable, trouble free operation.
  • Page 59 This guarantee will be invalid if the boiler passport has not We recommend that your oil boiler is serviced every twelve been returned to Grant Engineering (Ireland) ULC, if the months (even when the guarantee has expired) to prolong boiler does not have an annual (every twelve month) service the lifespan and ensure it is operating safely and effi...

  • Page 60: Wilo-Para 25-130/7-50/Sc-6#Gra Circulating Pump

    APPENDIX A1 WILO-PARA 25-130/7-50/SC-6#GRA CIRCULATING PUMP A1.1 WILO-PARA 25-130/7-50/SC- A1.1.2 THERMAL PROTECTION FUNCTION 6#GRA CIRCULATING PUMP The pump is equipped with a thermal self-protection mode. A1.1.1 PUMP SPECIFICATION If the fl uid temperature exceeds the maximum value at a specifi c ambient temperature, e.g.
  • Page 61 This is the default setting of the pump and as such is set: recommended by Grant for heating systems. In this mode the pump speed is not automatically regulated (as Table A2-2: Setting pump control mode with the Variable or Constant diff...
  • Page 62 Lock Operating Button • To activate the key lock function press and hold the green operating button for 8 seconds until the LEDs for the selected pump settings briefl y fl ash, then release. • LEDs fl ash constantly at 1 second intervals to show that key lock is activated.
  • Page 63 NOTES Notes Page 63...
  • Page 64 GRANT ENGINEERING (IRELAND) ULC Crinkle, Birr, Co. Off aly, R42 D788, Ireland Tel: +353 (0)57 91 20089 Fax: +353 (0)57 91 21060 Email: info@grantengineering.ie www.grant.eu...

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