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Baxi EcoBlue Plus Combi Quick Start Manual

1. 1 Prior to commissioning the boiler preliminary electrical system checks should be carried out 2 These should be performed using a suitable meter and include checks for Earth Continuity Resistance to Earth Short Circuit and Polarity 7 2 2 gt Checks 1 Checked Heating Pressure Gauge Digital pressure reading gt Thatthe boiler has been installed in accordance with these which can be accessed instructions _ m 1 r gt The integrity of the flue system and the flue seals Ne ae i i Fig 38 gt The integrity of the boiler combustion circuit and the relevant seals slight difference between the digital amp gauge reading depending on boiler operating mode 44 EcoBlue Plus Combi 7212136 02 08 14 ER 108 0 AAA amp These buttons for Fig 39 De Aeration FUNCTION INTERRUPTION If the De aeration is interrupted due to a fault the pump will cease to circulate but the function timer approx 10 minutes will continue to run For this reason it is recommended to monitor the boiler display during De aeration If the fault cannot be rectified quickly the function must be restarted to ensure complete De aeration In the event of a loss of power the De aeration function needs to be restarted once the power is re e
2. Control Box Cover 10 3 21 Main P C B Fig 64 1 Ensure that the power to the boiler is isolated 2 Release the clips securing the control box cover and lift away 3 Note the position of all plugs and wires on the P C B and disconnect them gt Section 3 3 Electrical Diagram for details 4 Undo the 5 securing screws and remove the P C B It is retained at the left by two spring latches and the right hand edge locates in a slot 5 Reassemble in reverse order ensuring that the harnesses to the Control P C B and terminal M2 are routed under the Main P C B Check the operation of the boiler 10 3 22 Boiler Control P C B Fig 64 1 Ensure that the power to the boiler is isolated 2 Release the clips securing the control box cover and lift away 3 Note the position of all plugs and wires on the P C B and disconnect them gt See Section 3 3 Electrical Diagram for details 4 Undo the 5 securing screws and remove the P C B It is retained at the left by two spring latches and the right hand edge locates in a slot 5 Disconnect the link harness between the Main amp Control P C B s and undo the 4 screws securing the Control P C B 6 Remove the Control P C B and fit the new component Reassemble in reverse order ensuring that the harnesses to the Control P C B and terminal M2 are routed under the Main Check the operation of the boiler
3. 38 6 2 2 Connecting the Condensate Drain 39 6 3 Preparation 6 3 1 Panel Removal 6 4 Air Supply Flue Gas Connections 6 4 1 Connecting the Flue Chimney 6 5 Electrical Connections 6 5 1 Electrical Connections of the Appliance PR 42 6 5 2 Connecting External 6 6 Filling the Installation esses 6 7 External Controls 1 6 7 1 Installation of External Sensors 6 7 2 Optional Outdoor Sensor 7 Commissioning tn A Rte 44 51 General T 2 Checklist before Commissioning ZE 44 7 2 1 Preliminary Electrical Checks neret 44 1 2 2 Checks 7 3 Commissioning Procedire 7 3 1 De Aeration Function ss 7 4 Gas Settings 7 4 1 Check Combustion Chimney Sweep Mode 7 5 Configuring the SyBlBlTI icd ice sta tru etico tatit ph 7 5 1 Check the Operational Working Gas Inlet Pressure amp Gas Rate 7 6 Final Instructions ss 7 6 1 Handover 7 6 2 System Draining ns rare A tente RH 8 Operation 8 1 General 8 2 Start Up n 8 3 To Shutdown 8 4 Use of the Control Panel nnne nnenenetetnnnenenn
4. Heating Flow Sensor Retaining Clip Fig 56 DHW NTC Sensor 7212136 02 08 14 Maintenance 10 10 3 6 Flue Sensor 1 For ease of access remove the Expansion Vessel as described in Section 10 3 23 2 Ease the retaining tab on the sensor away and disconnect the electrical plug 3 Turn the sensor 90 anticlockwise to remove it is a bayonet connection 4 Reassemble in reverse order 10 3 7 Igniter Fig 54 1 Note the position of the ignition amp sensing leads and disconnect them Also disconnect the igniter feed plug 2 Undo the screw securing the igniter mounting bracket to the left hand side panel Remove the igniter and bracket and transfer the bracket to the new igniter 3 Reassemble in reverse order reconnecting the plug and leads to the igniter 10 3 8 Heating Flow amp Return Sensors Fig 55 1 There is one sensor on the flow red wires and one sensor on the return blue wires Note For access to the return sensor first remove the fan and air gas collector see 10 3 2 2 After noting the position prise the sensor clip off the pipe and disconnect the plug 3 Connect the plug to the new sensor and ease the clip onto the pipe as close to the heat exchanger as possible 10 3 9 Safety Thermostat Fig 55 1 Pull the two spade connections off the safety thermostat 2 Remove the screws securing the thermostat to the mounting plate on the flow pipe 3 Reassemble in r
5. 720664401 Where the drain is between 3 amp 5 metres a 5 metre kit can be used and doubled back upon itself Any of the above MUST be fitted ONLY by a qualified competent person Further detail can be found in the relevant sales literature and at www baxi co uk 7212136 02 08 14 EcoBlue Plus Combi 23 5 Before Installation 5 Before Installation 5 1 Installation Regulations AN WARNING Installation repair and maintenance must only be carried out only by a competent person This document is intended for use by competent persons Installation must be carried out in accordance with the prevailing regulations the codes of practice and the recommendations in these instructions Please refer to 1 5 1 and 1 6 2 Installation must also respect this instruction manual and any other applicable documentation supplied with the boiler 24 EcoBlue Plus Combi 7212136 02 08 14 7212136 02 08 14 Fig 3 Gas Service Cock Before Installation 5 5 2 Installation Requirements 5 2 1 Gas Supply 1 The gas installation should be in accordance with the relevant standards In GB this is BS 6891 In IE this is the current edition of I S 813 Domestic Gas Installations 2 The connection to the appliance is a 22mm copper tail located at the rear of the gas service cock Fig 3 3 Ensure that the pipework from the meter to the appliance is of adequate size and
6. tenen retener 50 8 5 Frost Protection sn 50 9 Settings 51 9 1 euet eere ERE teni eere tienne nire esso testen e so 51 7212136 02 08 14 EcoBlue Plus Combi 10 11 12 13 14 15 Contents Maintenance PR LT Lt 10 1 General amp Service Message M es Le 10 2 Standard Inspection amp Maintenance Operation TRIER UE 10 3 Specific Maintenance Operations Changing Components 10 3 1 Spark Ignition amp Flame Sensing Electrodes 10 3 2 10 3 3 10 3 4 1095 udi du aen dna isa uc I DEI UE 10 3 6 Flue Sensor 10 3 7 ee 10 3 8 Heating Flow amp Return Sensors 10 3 9 Safety Thermostat 10 3 10 DHW NTC Sensor 10 3 11 Pump Head Only 10 3 12 Pump Complete nennen 10 3 13 Automatic Air Vent EUREN III UIT 10 3 14 Safety Pressure Relief Valve 10 3 15 Heating Pressure Gauge 10 3 16 Plate Heat Exchanger I 10 3 17 Hydraulic Pressure Sensor ter I CP T 10 3 18 DHW Flow Regulator amp Filter 10 3 19 DHW Flow Sensor Hall Effect Sensor 10 3 20 Diverter Valve Motor Eh Od AOA i E D rr ee I POIA EPES POE IRIE AI E 10 3 21 Main P C B PU NOTI DII i Lu CI LIU LI I Iq IL 10 3 22 Boiler Control P C B 10 3 23 Expansion Vessel RE IUE OU DII UTILITIES 10 3 24 Gas Valve M e TRORA A TR
7. gt Failure to abide by the instructions on using the appliance gt Failure to regularly maintain the appliance or faulty or inadequate maintenance of the appliance gt Failure to abide by the instructions on installing the appliance This company declares that no substances harmful to health are contained in the appliance or used during appliance manufacture The appliance is suitable only for installation in GB and IE and should be installed in accordance with the rules in force and only used in a suitably ventilated location In GB the installation must be carried out by a Gas Safe Registered Installer It must be carried out in accordance with the current and relevant requirements of legislation and guidance including the Gas Safety Installation amp Use Regulations The appropriate Building Regulations either The Building Regulations The Building Regulations Scotland Building Regulations Northern Ireland The Water Fittings Regulations or Water Byelaws in Scotland The Current I E E Wiring Regulations Where no specific instructions are given reference should be made to the relevant British Standard Code of Practice In IE the installation must be carried out by a competent Person and installed in accordance with the current edition of I S 813 Domestic Gas Installations the current Building Regulations and reference should be made to the current ETCI rules for electrical installation
8. you via the Gas Safe Register the register will issue the Building Regulations certificate on members behalf Scheme Members only Call Gas Safe Register on 0800 408 5577 or log onto www gassaferegister co uk within 10 days You must ensure that the certificate number issued by the Gas Safe Register is written onto the Benchmark Checklist Gas Safe Register will issue a Building Regulations Compliance Certificate to the property owner and inform the relevant LABC 7212136 02 08 14 Building Control Contact your relevant Local Authority Building Control LABC who will arrange an inspection or contact a government approved inspector Install and Commission this appliance to manufacturer s instructions Complete the Benchmark Checklist LABC will record the data and will issue a certificate of compliance EcoBlue Plus Combi Contents Contents 1 Introduction UN 1 1 General 1 2 Additional Documentation 1 9 Symbols Used 1 4 Abbreviations 1 5 Extent of Liabilities LLL LIOS DIDI ILU 1 5 1 Manufacturer s Liability 1 5 2 Installer s Responsibility pM 11 1 6 Homologations 1 6 1 Marking 1 6 2 Standards 2 Safety 13 2 1 General Safety 13 2 2 sn ann ene 2 3 Specific Safety Instructions 2 3 1 Handling e edem etse chiede 3 Techni
9. 7212136 02 08 14 Lock Nut Expansion Vessel Fig 69 Aet Gas Feed Pipe Gas Nozzle Injector C Gas Valve Electrical Washer Fig 68 7212136 02 08 14 Maintenance 10 10 3 23 Expansion Vessel 1 Close the flow and return isolation taps and drain the primary circuit 2 Prise off the securing clip and disconnect the braided hose from the vessel 3 Whilst supporting the vessel undo the locknut and manoeuvre the vessel out of the boiler 4 Reassemble in reverse order 10 3 24 Gas Valve Fig 69 e After replacing the valve the CO2 must be checked and adjusted as detailed Section 10 3 25 Setting the Gas Valve Only change the valve if a suitable calibrated combustion analyser is available operated by a competent person see section 10 1 3 1 Undo the screw and disconnect the electrical plug 2 Turn the gas cock off and undo the nut on the gas valve inlet underneath the boiler 3 Undo the nut on the gas valve outlet Ease the pipe aside NOTE The gas nozzle injector is inserted in the gas valve outlet 4 Remove the screws securing the gas valve to the boiler bottom panel Remove the valve 5 Transfer the gas nozzle injector to the new valve ensuring it sits in the valve outlet Examine the sealing washers repla
10. Pressure Relief Valve Fig 22 Discharge Pipe 38 EcoBlue Plus Combi Engage the Boiler Mounting Bracket on the Boiler into the Retaining Lugs using the Aligning Lugs for position Retaining Lugs Aligning Lugs Sealing Washers 5 Bottom Polystyrene Fig 21 When the Boiler Mounting Bracket on the Boiler is in position on the Retaining Lugs the bottom polystyrene may be discarded allowing the boiler to swing into position Front Panel and Control Box removed for clarity 6 1 General 1 Remove the sealing caps from the boiler connections under the boiler including the condensate trap before lifting into position e A small amount of water may drain from the boiler once the caps are removed For ease of installation connect and tighten the copper tails to the valves on the wall plate BEFORE fitting the boiler 2 Lift the boiler as indicated by the shaded areas The boiler should be lifted by TWO PEOPLE Engage the mounting bracket at the top rear of the boiler into the retaining lugs on the wall jig using the aligning lugs for position Fig 21 see Handling section 2 3 1 3 Insert the sealing washers between the valves and pipes on the wall jig and the boiler connections 4 Tighten all the connections 6 2 Assembly 6 2 1 Fitting the Pressure Relief Discharge Pipe 1 Remove the discharg
11. 4 If this does not have any effect or the codes are displayed regularly further investigation is required 11 2 Fault Finding 1 Check that gas water and electrical supplies are available at the boiler 2 Electrical supply 230V 50 Hz 3 The preferred minimum gas pressure is 20 mb NG 4 Carry out electrical system checks i e Earth Continuity Resistance to Earth Short Circuit and Polarity with a suitable meter NOTE These checks must be repeated after any servicing or fault finding 5 Ensure all external controls are calling for heat and check all external and internal fuses Before any servicing or replacement of parts ensure the gas and electrical supplies are isolated EcoBlue Plus Combi 65 11 Troubleshootin ng Refer to Illustrated Wiring Diagram for position of terminals and components Central Heating Follow operational sequence Turn on mains power NO If 110 or 384 is flashing or re occurs The display illuminates Go to section regularly check all PCB connections If this has no effect replace the PCB YES 125 133 384 YES Press the reset button for 1 If 110 is still flashing flashing to 3 seconds go to section H 20 28 40 or 321 YES flashing to section NO 117 or 118 flashing Go to section i Ensure controls are set to demand and verify the contacts are closed Set Central Heating temperature to Maximum Ensure all controls and
12. Comments Comments Signature SERVICE 05 SERVICE 06 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate At max rate Record Record At min rate Where Possible At min rate Where Possible Comments Comments SERVICE 07 SERVICE 08 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate At max rate Record Record At min rate Where Possible At min rate Where Possible Comments Comments SERVICE 09 SERVICE 10 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate At max rate Record Record At min rate Where Possible At min rate Where Possible Comments Comments All installations in England and Wales must be notified to Local Authority Building Control either directly or through 7 COLLECTIVE MARK Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SY
13. N N eo 3 Fig B In GB Only 28 EcoBlue Plus Combi 5 3 Choice of the Location 5 3 1 Location of the Appliance 1 The boiler may be fitted to any suitable wall with the flue passing through an outside wall or roof and discharging to atmosphere in a position permitting satisfactory removal of combustion products and providing an adequate air supply The boiler should be fitted within the building unless otherwise protected by a suitable enclosure i e garage or outhouse The boiler may be fitted inside a cupboard see Section 5 3 4 2 Where the boiler is sited in an unheated enclosure and during periods when the heating system is to be unused it is recommended that the permanent live is left on to give BOILER frost protection NOTE THIS WILL NOT PROTECT THE SYSTEM 3 If the boiler is fitted in a room containing a bath or shower reference must be made to the relevant requirements In GB this is the current I E E Wiring Regulations and Building Regulations In IE reference should be made to the current edition of I S 813 Domestic Gas Installations and the current ETCI rules 4 If the boiler is to be fitted into a building of timber frame construction then reference must be made to the current edition of Institute of Gas Engineers Publication IGE UP 7 Gas Installations in Timber Framed Housing 5 3 2 Data Plate 1 The boiler data badge gives details of the model serial number and Gas Council number and is situated
14. Pipe 7212136 02 08 14 Maintenance 10 Standard Inspection and Maintenance Operation When performing any inspection or maintenance personal protective equipment must be used where appropriate 1 Ensure that the boiler is cool and that both the gas and electrical supplies to the boiler are isolated 2 Remove the screws securing the case front panel Lift the panel slightly to disengage it from the tabs on top of the case Fig 43 Hinge down the control box 3 To aid access disconnect the igniter plug amp disconnect the two pipes from the top of the condensate trap and the drain pipe from the trap outlet Undo the screw amp washer securing the trap to the boiler lower panel 4 Disengage the lip on the trap from the slotted bracket and remove the trap Take care not to spill any residual condensate on the controls and P C B Thoroughly rinse the trap and examine the gasket on the trap base replacing if necessary 5 Remove the clip securing the gas feed pipe to the air gas venturi Disconnect the pipe Do not break the joint between the pipe and gas valve unless necessary 6 Note their position and disconnect the electrode leads and the fan electrical plugs Fig 46 7 Undo the four 10mm nuts retaining the combustion box cover to the heat exchanger 8 Carefully draw the fan collector and cover assembly forward Fig 46 9 Clean any debris from the heat exchanger and check that the gaps between the
15. Prior to commissioning all systems must be thoroughly flushed and treated with inhibitor see section 5 2 6 Failure to do so will invalidate the appliance warranty Incorrect installation could invalidate the warranty and may lead to prosecution 7212136 02 08 14 7212136 02 08 14 Introduction 1 1 5 2 Installer s Responsibility The installer is responsible for the installation and initial start up of the appliance The installer must adhere to the following instructions Read and follow the instructions given in the manuals provided with the appliance gt Carry out installation in compliance with the prevailing legislation and standards gt Ensure the system is flushed and inhibitor added gt Install the flue chimney system correctly ensuring it is operational and complies with prevailing legislation and standards regardless of location of the boiler s installation gt Only installer should perform the initial start up and carry out any checks necessary gt Explain the installation to the user gt Complete the Benchmark Commissioning Checklist this is condition of the warranty gt Warn the user of the obligation to check the appliance and maintain it in good working order gt Give all the instruction manuals to the user 1 6 Homologations 1 6 1 CE Marking EC Declaration of Conformity Baxi Heating UK Limited being the manufacturer distributor within the European Economic
16. Area of the following Baxi EcoBlue Plus 24 28 33 Combi declare that the above is in conformity with the provisions of the Council Directive 2009 142 EC 92 42 EEC 2004 108 EC 2006 95 EC and has been subject to the following conformity procedures laid down in Annex 2 Article 3 of 2009 142 EC under the supervision of the British Standards Institution a Notified Body authorized by the United Kingdom Competent Authority and carrying the Notified Body Number 0086 Type test for purpose of Regulation 5 certified by Notified Body 0085 Product Production certified by Notified Body 0086 For GB IE only EcoBlue Plus Combi 11 12 Introduction EcoBlue Plus Combi 1 6 2 Standards Codes of Practice refer to the most recent version In GB the following Codes of Practice apply Standard BS 6891 BS 5546 BS EN 12828 BS EN 12831 BS EN 14336 BS 6798 BS 5440 Part 1 BS 5440 Part 2 BS 7074 BS 7593 BS 4814 IGE UP 7 1998 Scope Gas Installation Installation of hot water supplies for domestic purposes Heating systems in buildings Heating systems in buildings Calculation of load Installation amp commissioning of water based heating systems Installation of gas fired hot water boilers Flues Ventilation Expansion vessels and ancillary equipment for sealed water systems Treatment of water in domestic hot water central heating systems Specification for Expansion Vessels using an i
17. H17 3187 H1250 4 H128 3 150 9A 133 Boil Bicol BH 334 Central Heating NTC Fault Flue NTC Fault Central Heating Return NTC Fault Possible Circulation Fault Safety Thermostat Operated pump fault Safety Thermostat Operated over temperature Primary System Water Pressure Too High Primary System Water Pressure Too Low Circulation Fault Primary Flame Failure no lock out Flue NTC Operated Interruption Of Gas Supply or Flame Failure Flame Failure Fan or Fan Wiring Fault Hot Water NTC Fault False Flame The P button can be pressed so that the display shows the following information 00 alternates with Sub Code only when fault on boiler or 000 01 alternates with CH Flow Temperature 02 alternates with Outside Temperature where Sensor fitted 03 alternates with stored DHW Temperature 04 alternates with DHW Temperature 05 alternates with System Water Pressure 06 alternates with CH Return Temperature 07 alternates with Flue Temperature 08 not used 09 alternates with Collector Temperature 10 alternates with Zone 1 CH Flow Temperature 11 alternates with Zone 2 CH Flow Temperature 12 alternates with lonization current 13 alternates with Burner working hours 14 alternates with Zone 1 CH mode 15 alternates with Zone 2 CH mode 16 alternates with DHW circuit operating mode 17 alter
18. Relief Valve 13 Plate Heat Exchanger O1 ND Connections Condensate Drain Heating Flow Domestic Hot Water Outlet D Gas Inlet 20 000000000000000 26 X 9 27 14 15 16 17 19 25 Condensate Trap Gas Valve Safety Thermostat 105 C Heating Flow Sensor 18 Boiler Adaptor 20 21 22 23 Flue Sensor Primary Heat Exchanger Spark Ignition Electrode Burner Flame Sensing Electrode 24 Air Gas Collector 25 26 Return Heating Sensor Fan 27 Air Gas Venturi 28 E Cold Water Inlet On Off Valve and filter F Heating Return 20 EcoBlue Plus Combi Expansion Vessel 4 2 LI The boiler can be set in 3 operating modes Summer DHW only Winter CH amp DHW or Heating Only CH only by use of the II button 4 2 1 Operating Principle Central Heating Mode 1 With a demand for heating the pump circulates water through the primary circuit 2 Once the burner ignites the fan speed controls the gas rate to maintain the heating temperature measured by the temperature sensor 3 When the flow temperature exceeds the setting temperature a 3 minute delay occurs before the burner relights automatically anti cycling The pump continues to run during this period 4 When the demand is satisfied the burner is extinguished and the pump continues to run for a period of 3 minutes pump overrun
19. Safe registered company and holding current certificates in the relevant ACS modules is deemed competent In IE this must be carried out by a competent person as stated in 1 5 813 Domestic Gas Installations The addition of anything that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the appliance warranty In GB this could also infringe the Gas Safety Installation and Use Regulations The appliance is designed as a boiler for use in residential domestic environments on a governed meter supply only The selection of this boiler is entirely at the owner s risk If the appliance is used for purposes other than or in excess of these specifications the manufacturer will not accept any liability for resulting loss damage or injury The manufacturer will not accept any liability whatsoever for loss damage or injury arising as a result of failure to observe the instructions for use maintenance and installation of the appliance WARNING Check the information on the data plate is compatible with local supply conditions 1 2 Additional Documentation These Installation amp Service Instructions must be read in conjunction with the Flue Installation Guide supplied in the Literature Pack Various timers external controls etc are available as optional extras Full details are contained in the relevant sales literature 7212136 0
20. are fused Any thermostat must be suitable for 230V switching 8 Replace the terminal block cover e The 230V switched signal for external controls Frost Stat Room Stat Timer must always be taken from terminal 2 at the boiler Live Neutral and Earth to power these controls must be taken from the Fused Spur For the Frost Stat to operate the boiler MUST BE IN CENTRAL HEATING MODE i e symbol shown 9 Engage the front panel onto the locating lugs on top of the case amp secure with the securing screws at the bottom of the case 6 5 2 Connecting External Devices gt 1 See Section 6 7 2 for details of fitting the optional outdoor sensor accessory 6 6 Filling the Installation gt 1 See Section 5 2 6 and 5 6 1 for details of flushing and filling the installation 7212136 02 08 14 North M2 Low Voltage Terminal Block 7212136 02 08 14 Installation 6 6 7 External Controls 6 7 1 Installation of External Sensors 1 Various Sensors are available 6 7 2 Optional Outdoor Sensor Full instructions are provided with the Outdoor Sensor Kit Positioning the Sensor 1 The sensor must be fixed to an external wall surface of the property it is serving The wall must face north or west DO NOT position it on south facing wall in direct sunlight 2 The sensor should be approximately half the height of the living space of the property and a minimum of 2 5m above ground
21. function me 7212136 02 08 14 Before Installation 5 5 6 Connecting Diagrams 5 6 1 System Filling and Pressurising 1 A filling point connection on the central heating return pipework must be provided to facilitate initial filling and pressurising and also any subsequent water loss replacement refilling 2 A filling loop is supplied with the boiler Follow the instructions provided with it 3 The filling method adopted must be in accordance with all relevant water supply regulations and use approved equipment 4 Your attention is drawn to for GB Guidance G24 2 and recommendation R24 2 of the Water Regulations Guide for IE the current edition of I S 813 Domestic Gas Installations 5 The sealed primary circuits may be filled or replenished by means of a temporary connection between the circuit and a supply pipe provided a Listed double check valve or some other no less effective backflow prevention device is permanently connected at the inlet to the circuit and the temporary connection is removed after use 5 6 2 Domestic Hot Water Circuit 1 All DHW circuits connections fittings etc should be fully in accordance with relevant standards and water supply regulations 2 Your attention is drawn to for GB Guidance G17 to G24 and recommendation R17 to R24 of the Water Regulations Guide for IE the current edition of I S 813 Domestic Gas Installations 3 The Water Regulations recommendations f
22. level 3 must be positioned away from any sources of heat or cooling e g flue terminal to ensure accurate operation Siting the sensor above doors and windows adjacent to vents and close to eaves should be avoided Connecting the Sensor 1 Ensure the electrical supply to the boiler is isolated Undo the securing screws and lift the case front panel off 2 Hinge the control box downwards Disengage the securing tabs and open the terminal block cover 3 Remove one of the grommets in the boiler lower panel pierce the diaphragm and insert the wires from the outdoor sensor 4 Leave sufficient slack in the wires to allow the control box to be hinged fully open Refit the grommet 5 Connect the wires from the outdoor sensor to positions 4 amp 5 on M2 as shown Refit the cover Setting the Sensor Curve 1 With the outdoor sensor fitted the boiler central heating flow temperature is adjusted automatically to accommodate the change in heat required to optimise the efficient performance of the boiler whilst maintaining a comfortable room temperature The central heating buttons on the boiler adjust a simulated room temperature used for this optimisation 2 This functionality requires the setting of three parameters on the boiler to suit the heating system and the optimisation can be adjusted by the user with the central heating control buttons on the boiler control panel Full instructions are provided with the Outdoor S
23. mr symbol flashing pump programmers are calling Go to section B runs for heat Fan runs at correct speed flashing Go to section C Spark at ignition electrodes YES Go to section F Press the up to 5 seconds amp for 4 133 and flashing reset button for 1 to 3 seconds attempts YES Setosection e to section YES gt Burner lights Burner out after 5 n 133 to section YES NO Flame Displayed gt Check polarity 5 109 flashing MANN 4125 flashing after 1 min Go to section J NO 110 or 111 flashing LIS PN Go to section H NO i NO ISTE to Go to section K Central Heating circuit YES Check Heating Flow Burner modulates to DNE sensor maintain set temperature Go to section D 130 flashing eS Go to section M NO YES Fan stops after 15 YES Boil ti t RTE Burner goes out 66 EcoBlue Plus Combi 7212136 02 08 14 Troubleshooting 11 Domestic Hot Water Follow operational sequence If 110 or 384 is flashing or re occurs Go to section A regularly check all PCB connections If this has no effect replace the PCB Turn on mains power The display illuminates YES H110 125 133 384 YES Press the reset button for 1 If 110 is still flashing flashing to 3 seconds go to section H NO 20 28 40 50 or 321 flashing Go to section D O 117 or 11
24. notified to Local Authority Building Control either directly or through a enchmari Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS Heating and Hotwater Industry Council HHIC www centralheating co uk SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed Service Provider Before completing the appropriate Service Record below please ensure you have carried out the service as described in the manufacturer s instructions Always use the manufacturer s specified spare part when replacing controls SERVICE 01 SERVICE 02 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate At max rate Record Record At min rate Where Possible At min rate Where Possible Comments Comments Signature SERVICE 03 SERVICE 04 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate At max rate Record Record min rate Where Possible At min rate Where Possible
25. on the boiler lower panel It is visible when the control box is lowered Fig 6 5 3 3 Bath amp Shower Rooms e Where an integral timer is NOT FITTED the boiler has a A protection rating of IPX5D and if installed in a room containing a bath or shower can be within Zone 2 but not 0 or 1 Figs A amp B shows zone dimensions for a bathtub For other examples refer to the Current 1 Wiring Regulations Reference must be made to the relevant requirements In GB this is the current I E E Wiring Regulations and Building Regulations In IE reference should be made to the current edition of I S 813 Domestic Gas Installations and the current ETCI rules the boiler is fitted with an integral timer it CANNOT be A installed in Zone 0 1 or 2 5 3 4 Ventilation 1 Where the appliance is installed in a cupboard or compartment no air vents are required BS 5440 Part 2 refers to room sealed appliances installed in compartments The appliance will run sufficiently cool without ventilation 7212136 02 08 14 Examples are shown of the following methods of termination i to an internal soil amp vent pipe ii via an internal discharge branch e g sink waste downstream of the trap iii to a drain or gully iv to a purpose made soakaway v pumped into an internal discharge branch e g sink waste downstream of the trap vi pumped into an external soil amp vent pipe vii to a drain or gully with extended
26. possible should be used and any burrs on cut pipe removed 11 When discharging condensate into a soil stack or waste pipe the effects of existing plumbing must be considered If soil pipes or waste pipes are subjected to internal pressure fluctuations when WC s are flushed or sinks emptied then back pressure may force water out of the boiler trap and cause appliance lockout 12 A boiler discharge pump is available which will dispose of both condensate amp high temperature water from the relief valve It has a maximum head of 5 metres Follow the instructions supplied with the pump 13 Condensate Drain Pipe Trace Heating Elements are available in various lengths 1 2 3 amp 5 metres Where the drain is between 3 amp 5 metres a 5 metre kit can be used and doubled back upon itself 14 It is possible to fit the element externally on the condensate drain or internally as detailed in the instructions provided 15 The fitting of a Trace Heating Element is NOT a substitute for correct installation of the condensate drain ALL requirements in this section must still be adhered to vii to a drain or gully with extended external run amp trace heating The Trace Heating element must be installed in accordance with the instructions supplied External runs amp those in unheated locations still require insulation Boiler Pipe must terminate above water level but below surrounding surface Cut end at 4
27. reproduced or transmitted in any form or by any means stored in any retrieval system of any nature including in any database in each case whether electronic mechanical recording or otherwise without the prior written permission of the copyright owner except for permitted fair dealing under Copyrights Designs and Patents Act 1988 Applications for the copyright owner s permission to reproduce or make other use of any part of this publication should be made giving details of the proposed use to the following address The Company Secretary Baxi Heating UK Limited Brooks House Coventry Road Warwick CV34 4LL Full acknowledgement of author and source must be given WARNING Any person who does any unauthorised act in relation to a copyright work may be liable to criminal prosecution and civil claims for damages You have just purchased one of our appliances and we thank you for the trust you have placed in our products Please note that the product will provide good service for a longer period of time if it is regularly checked and maintained Our customer support network is at your disposal at all times 2 EcoBlue Plus Combi 7212136 02 08 14 Installer Notification Guidelines Installer Notification Guidelines Choose Building Regulations Notification Route Competent Person s Self Certification Scheme Install and Commission this appliance to manufacturer s instructions Complete the Benchmark Checklist
28. the Five Steps to Risk Assessment document published by the HSE is consulted and an assessment performed as described GAS SUPPLY The gas supply gas type and pressure must be checked for suitability before connection me u To remove only the Wall jig Slide the wall jig out of slide banding to the edge carton then close the flaps and open flaps Slide banding back on 1 See Section 2 3 1 Handling before unpacking or lifting the boiler 2 Follow the procedure on the carton to unpack the boiler or see Fig 14a 3 If pre plumbing Fig 14 the wall jig and fitting kit can be removed without removing the carton sleeve Simply slide banding to the edge and open the perforated flap lift out the jig fitting kit and instructions If the boiler is to be install at a later date close the flap and reposition the banding straps the boiler can now be store safely away e A small amount of water may drain from the boiler in the upright position 5 5 2 Initial Preparation ya 1 After considering the location position the fixing template the wall ensuring it is level both horizontally and vertically 2 Mark the position of the fixing slots for the wall jig indicated on the template 3 Mark the position of the centre of the flue hole rear exit For side flue exit mark as shown Fig 15 Fig 15 For Side Exit 4 If required mark the position of the gas and wa
29. wiring Display or Main PCB fault Main terminals L and N Switch to DHW mode maximum flow and press reset During next 3 minutes check 230V between PCB X13 230V at PCB X13 connector connector blue and PCB X11 b blue amp b Wiri gt YES TES Replace between blue amp brown see Wiring connector black see Wiring gt 230V at pump Diagram Diagram NO Check wiring Replace PCB Replace PCB C Fan connections correct at fan amp PCB X11 and X23 connectors see Wiring Diagram YES 230V at PCB X11 connector YES between blue amp brown see Wiring Pan Replace fan or wire Diagram faulty wiring Replace PCB Temperature sensor faulty Check correct location and wiring Cold resistance approximately 10 25 CH amp DHW sensor NO Replace sensor 20kQ 25 sensor amp reset boiler resistance reduces with increase in temp Ensure gas is and purged Check wiring and PCB X14 Replace gas valve amp connector see Wiring Diagram Check combustion Replace PCB 68 EcoBlue Plus Combi 7212136 02 08 14 Troubleshooting Check and correct if necessary Check wiring see Diagram NO 1 Ignition electrode and lead 2 E and 230V at PCB X14 between Replace PCB blue amp brown from igniter 3 Spark gap and position Replace Igniter Burner Flame Sensing 7 Electrode Spark Ignition x
30. 0 seconds to prevent sticking 7212136 02 08 14 Description of the Product 4 4 3 Main Components 1 Expansion Vessel 2 Boiler Adaptor 3 Primary Heat Exchanger 4 Plate Heat Exchanger 5 Pump with Automatic Air Vent 6 Central Heating System Pressure Gauge T Fan Assembly with Venturi 8 Expansion Vessel Locating Stud 9 Flame Sensing Electrode 9 10 Air Gas Collector 11 Spark Ignition Electrode 12 Combustion Box Cover amp Burner 13 Control Box Display 14 Condensate Trap 15 Safety Pressure Relief Valve 16 Gas Valve 17 Diverter Valve Motor 18 Boiler Controls 19 Boiler Control Box 20 Boiler Drain Tap 21 Heating Flow Sensor 22 Safety Thermostat 23 Igniter 24 Access Panel for Timer Connector 7212136 02 08 14 EcoBlue Plus Combi 21 4 Description of the Product 4 4 Boiler Information View Standby Reset Esc Control Panel Description Key to Controls b R Standby Reset Esc Button m m mr m Domestic Hot Water DHW Temperature Adjustme
31. 2 08 14 7212136 02 08 14 1 3 Introduction 1 Symbols Used In these instructions various levels are employed to draw the user s attention to particular information In so doing we wish to safeguard the user s safety prevent hazards and guarantee correct operation of the appliance Each level is accompanied by a warning triangle EE 1 DANGER Risk of a dangerous situation causing serious physical injury WARNING Risk of a dangerous situation causing slight physical injury CAUTION Risk of material damage Signals important information Signals a referral to other instructions or other pages in the instructions 1 4 Abbreviations v Ww NN NN DHW Domestic hot water CH Central heating GB Great Britain IE Ireland BS British standard HHIC Heating and Hotwater Industry Council EcoBlue Plus Combi 9 10 Introduction EcoBlue Plus Combi 1 5 Extent of Liabilities 1 5 1 Manufacturer s Liability Our products are manufactured in compliance with the requirements of the various european applicable Directives They are therefore delivered with C marking and all relevant documentation In the interest of customers we are continuously endeavouring to make improvements in product quality All the specifications stated in this document are therefore subject to change without notice The manufacturer will not accept any liability for loss damage or injury arising as a result of
32. 4 2 2 Domestic Hot Water Mode 1 Priority is given to the domestic hot water supply A demand at a tap or shower will override any central heating requirement 2 The flow of water will operate the DHW Sensor Hall Effect Sensor which requests the 3 way valve to change position This will allow the pump to circulate the primary water through the DHW plate heat exchanger 3 The burner will light automatically and the temperature of the domestic hot water is controlled by the temperature sensor 4 When the domestic hot water demand ceases the burner will extinguish and the diverter valve will remain in the domestic hot water mode unless there is a demand for central heating 4 2 3 Boiler Frost Protection Mode 1 The frost protection mode is integral to the appliance and functions as long as there is power to the boiler as indicated by the standby signal b 2 With CH amp DHW or CH only selected when the boiler temperature falls below 5 the boiler will fire until a temperature of 30 is reached 3 If DHW only is selected when the boiler CH temperature falls below 5 the boiler will fire until a temperature of 30 C is reached When the boiler DHW temperature falls below 5 C the boiler will fire until a temperature of 7 is reached 4 Further protection can be incorporated by using a system frost thermostat 4 2 4 Pump Protection 1 This activates once a week if there has been no demand The pump runs for 3
33. 5 7212136 02 08 14 Before Installation 5 5 3 6 Clearances 1 flat vertical area is required for the installation of the boiler 2 These dimensions include the necessary clearances around the boiler for case removal spanner access and air movement Additional clearances may be required for the passage of pipes around local obstructions such as joists running parallel to the front face of the boiler This is MINIMUM recommended dimension Greater clearance will aid installation and maintenance 5mm Min 390mm 5mm Min lt gt lt 175 Min 300mm Y Min if using 80 125mm flueing system Y At least 1 57 450mm Min 700mm 2 For Servicing Purposes amp Operating the Controls 5 vin mm Min 295mm oe 150mm Min In Operation This is MINIMUM recommended dimension Greater clearance will aid installation and maintenance Fig 7 7212136 02 08 14 EcoBlue Plus Combi 31 Before Installation 5 3 7 Flue Chimney Location 1 The following guidelines indicate the general requirements for siting balanced flue terminals For GB recommendations are given in BS 5440 Pt 1 For IE recommendations are given in the current edition of I S 813 Domestic Gas Installations A Due to the nature of the boiler a plume of water vapour will be discharged from the flue This should be taken into a
34. 8 flashing Go to section Go to section L Set Hot Water temperature to Go to section L Maximum amp fully open hot DHW flow rate greater ma symbol flashing pump runs than 2litres min Burner lights YES Go to section B Fan runs at correct speed 160 flashing Go to section C Spark at ignition electrodes YES Go to section F Press the up to 5 seconds amp for4 133 and flashing gt reset button for 1 to 3 attempts seconds Gowsaime to section YES gt Burner E ud out after 5 H 133 E J E ud E mH to section G me Check polarity m YES n 109 flashing gt I 125 flashing after 1 gt Go to section J 110 or 111 flashing ES e Go to section H NO 3 Way Valve open to NO TERES Domestic Hot Water circuit Go to section Burner modulates to NO Check CH NTC sensor maintain set temperature i Go to section D NO 130 flashing YES Go to section M NO YES Fan stops after 15 YES Boiler operation correct ET 7212136 02 08 14 EcoBlue Plus Combi 67 YES Burner lights YES Flame Displayed 11 Troubleshooting Fault Finding Solutions Sections A Is there 230V at 1 Main terminals L and N 2 Main terminal fuse NN 3 NO PCB X10 connector Check electrical supply Replace fuse Connection OK at X40 Display illuminated Check
35. Domestic Hot Water Temperature Adjustment Summer Winter Heating Only Mode Display Screen PEL 9 Li 6 Use of the Control Panel Key to Controls b R Standby Reset Esc Button i Boiler Information View Button Increase CH Temperature Button I Decrease CH Temperature Button ma Increase DHW Temperature Button Decrease DHW Temperature Button Summer Winter Only Heating Mode Button Summer Winter Heating Only Mode 1 Press button until the required mode appears Summer DHW only mode ber my Winter DHW 8 CH mode wer Heating Only Only CH mode To increase or decrease the boiler temperature C 1 Press 4 to increase the Central Heating temperature LI 11 2 to decrease the Central Heating temperature gt overheat thermostat is positioned in the heat exchanger which shuts down the appliance if the boiler temperature exceeds 100 C Press b R button to re establish normal operating conditions 8 5 To adjust the domestic hot water temperature C 1 Press to increase the Domestic Hot Water temperature l la 2 Press Wm to decrease the Domestic Hot Water m temperature Frost Protection 1 The boiler incorporates an integral frost protection feature that will operate in both Central Heating and Domestic H
36. Electrode 7 A Check supply pressure at the gas cock test point Fig 41 Natural Gas Minimum 17 mbar Check and correct if necessary 1 The set of the gas valve CO values see Section 10 3 25 2 Flame sensing electrode and lead connections 3 Flame sensing electrode position Replace sensing electrode or PCB Check for and correct any System faults NO Safety Thermostat operated or faulty Allow to cool Continuity across thermostat terminals more than 1 5 ohm Check Flow amp Return Sensors see section D Replace safety thermostat Is 110 or 111 still flashing Replace PCB 7212136 02 08 14 EcoBlue Plus Combi 11 69 11 Troubleshooting CH system pressure less than YES 0 5 bar or greater than 2 7 bar on digital display Restore correct system pressure Check wiring and PCB YES gt Replace hydraulic pressure sensor X22 connector for approx 5V DC between green amp NO Replace PCB black see Wiring Diagram NO J Ensure that the boiler and System fault correct system are fully vented YES Check flow temperature sensor connections and position NO Cold resistance approximately 10 25 C CH sensors resistance reduces with increase in temp Go to section B YES K Is there 230V at Y PCB X13 connector terminals between NE Blue amp Black central heating mode _ az Blue amp Brown do
37. Electrode Flame Sensing Electrode Gas Valve Safety Thermostat Hall Effect Sensor Plate Heat Exchanger Diverter Valve Motor Pump Heating Flow Return Sensor DHW NTC Sensor Pump Automatic Air Vent Hydraulic Pressure Switch Heating Pressure Gauge Flue Sensor PCB 24 PCB 28 PCB 33 05 0 Gas Nozzle Injector 24 05 6 Gas Nozzle Injector 28 06 6 Gas Nozzle Injector 33 Air Gas Venturi 24 Air Gas Venturi 28 Air Gas Venturi 33 Boiler Control HMI PCB Manufacturers Part No 720768101 7212447 7212449 720767301 7211855 7214341 720765301 720061801 720852401 720776801 720777401 720747101 720777001 720777601 720778001 7212896 720851401 7211761 7211762 7211763 7211862 7211864 7214346 7211858 7211859 7211860 7211868 7212136 02 08 14 Notes 14 14 Notes 7212136 02 08 14 EcoBlue Plus Combi 73 GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference Failure to install and commission according to the manufacturer s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty This does not affect the customer s statutory rights Custom
38. STEMS O Heating and Hotwater Industry Council HHIC www centralheating co uk 75 All descriptions and illustrations provided in this leaflet have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet goods are sold subject to our standard Conditions of Sale which are available on request BAXI A Trading Division of Baxi Heating UK Ltd 3879156 Brooks House Coventry Road Warwick CV34 4LL After Sales Service 0844 871 1525 Technical Enquiries 0844 871 1555 Website www baxi co uk e amp oe PART OF BDR THERMEA Baxi Heating UK Ltd 2014 7212136 02 08 14
39. UM IGI IT 10 3 25 Setting the Gas Valve CO Check Troubleshooting 11 1 Error Codes 11 2 Fault Finding EE E E A PE RE LE LL 65 Decommissioning Procedure eene T1 12 1 Decommissioning Procedure 71 Spare Parts een NEE IIE IEE NE SL IC I DI 13 1 General 13 2 Spare Parts List APIE EIN M 72 EcoBlue Plus Combi 7212136 02 08 14 7212136 02 08 14 EcoBlue Plus Combi 1 Introduction Introduction EcoBlue Plus Combi 1 4 General AN WARNING Installation repair and maintenance must only be carried out only by a competent person This document is intended for use by competent persons All Gas Safe registered engineers carry an ID card with their licence number and a photograph You can check your engineer is registered by telephoning 0800 408 5500 or online at www gassaferegister co uk This appliance must be installed in accordance with the manufacturer s instructions and the regulations in force If the appliance is sold or transferred or if the owner moves leaving the appliance behind you should ensure that the manual is kept with the appliance for consultation by the new owner and their installer Read the instructions fully before installing or using the appliance In GB this must be carried out by a competent person as stated in the Gas Safety Installation amp Use Regulations as may be amended from time to time Definition of competence A person who works for a Gas
40. United Kingdom en Installation and Service Manual Gas Fired Wall Mounted Condensing Combination Boiler EcoBlue Plus Combi 24 28 33 These instructions include the Benchmark Commissioning Checklist and should be left with the user for safe keeping They must be read in conjunction with the Flue Installation Guide Model Range Building Regulations and the Benchmark Commissioning Checklist Baxi EcoBlue Plus 24 Combi G C N 47 075 84 Baxi EcoBlue Plus 28 Combi Building Regulations England amp Wales require notification of the G C N 47 075 85 installation of a heating appliance to the relevant Local Authority Baxi EcoBlue Plus 33 Combi Building Control Department This can be achieved via a G C N 47 075 86 Competent Persons Self Certification Scheme as an option to notifying the Local Authority directly The Health 8 Safety Executive operates the Gas Safe Register a self certification scheme for gas heating appliances This company is a member of the Benchmark initiative and fully supports the aims of the programme Its aim is to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central heating Systems to ensure safety and efficiency Building Regulations require that installations should comply with manufacturer s instructions It is therefore important that the commissioning checklist is com
41. al Clock Fig 36 Locating Lug _ Case Front Panel Case Front Panel Securing Screws 42 EcoBlue Plus Combi 6 5 Electrical Connections 6 5 1 Electrical Connections of the appliance 1 See Section 5 2 2 for details of the electrical supply Undo the securing screws and lift the case front panel off 2 Hinge the control box downwards Disengage the securing tabs and open the terminal block cover Fig 34 3 If the mains cable fitted is not long enough slacken the gland nut in the right of the boiler lower panel and pass the new mains cable through it Remove the grommet adjacent to the gland nut pierce the diaphragm and insert the cable from the external control system 4 Leave sufficient slack in the cables to allow the control box to be hinged fully open Tighten the gland nut and refit the grommet and gland nut 5 Connect the Earth Permanent Live and Neutral wires to the terminal strip A 6 Refer to the instructions supplied with the external control s e 7 Remove the link between connections 1 amp 2 The 230V supply at connection 2 must be connected to the thermostat The Switched output from the thermostat must be connected to connection 1 Figs 35 amp 36 If the room thermostat being used incorporates an anticipator it MUST be wired as shown in Figs 35 amp 36 Both the Permanent Live and Neutral connections
42. andling or lifting always use safe techniques keep your back straight bend your knees Don t twist move your feet avoid bending forwards and sideways and keep the load as close to your body as possible Where possible transport the boiler using a sack truck or other suitable trolley Always grip the boiler firmly and before lifting feel where the weight is concentrated to establish the centre of gravity repositioning yourself as necessary See the Installation section of these instructions for recommended lift points Remember The circumstances of each installation are different Always assess the risks associated with handling and lifting according to the individual conditions If at any time when installing the boiler you feel that you may have injured yourself STOP DO NOT work through the pain you may cause further injury IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING 14 EcoBlue Plus Combi 7212136 02 08 14 Technical Specifications 3 3 Technical Specifications 3 1 Technical Data Appliance Type C33 Cs Electrical Supply 230V 50Hz Central Heating Primary Circuit Appliance must be connected to an Pressures Appliance Category CAT earthed supply bar Heat Input CH Net Safety Discharge 3 Power Consumption
43. cal Specifications EE 15 3 1 Techinical Data e 15 3 2 Dimensions and Connections ten tet te Dee tet it nn 17 3 3 Electrical Diagram c EP 18 4 Description of the Product enne A 4 1 General Description M 4 2 Operating Principle M 4 2 1 Central Heating Mode eee 4 2 2 Domestic Hot Water Mode 4 2 3 Boiler Frost Protection Mode 4 2 4 Pump Protection ss 4 3 Main Components 4 4 Control Panel Description 4 5 Standard Delivery 4 6 Accessories amp Options 4 6 1 Optional Imp NEEDED 5 Before Installation 5 1 Installation Regulations 5 2 Installation Requirements M 5 2 1 Gas Supply 5 2 2 Electrical Supply RN 5 2 3 Hard Water Areas 5o territi rerit irt trottoir tr tan rette rene 5 2 4 Bypass C 5 2 5 System Control saa susisuiiiensae 5 2 6 Treatment of Water Circulating Systems 5 2 7 5 2 8 Expansion Vessel CH only 5 2 9 Safety Pressure Reli
44. ccount when siting the flue terminal 32 Fig 8 Likely flue positions requiri a flue terminal guard Terminal Position with Minimum Distance Fig 8 Directly below an opening air brick opening windows etc Above an opening air brick opening window etc Horizontally to an opening air brick opening window etc Below gutters soil pipes or drain pipes Below eaves Below balconies or car port roof From a vertical drain pipe or soil pipe From an internal or external corner Above ground roof or balcony level From a surface or boundary line facing a terminal From a terminal facing a terminal Horizontal flue From a terminal facing a terminal Vertical flue From an opening in carport e g door window into the dwelling Vertically from a terminal on the same wall Horizontally from a terminal on the same wall From adjacent wall to flue vertical only From an adjacent opening window vertical only Adjacent to windows or openings on pitched and flat roofs Below windows or openings on pitched roofs EcoBlue Plus Combi mm 300 300 300 25 75 25 200 25 200 25 150 25 300 300 600 1200 600 1 In addition the terminal should be no nearer than 150 mm to an opening in the building fabric formed for the purpose of accommodating a built in eleme
45. cing if necessary 6 Reassemble in reverse order e Check gas tightness amp CO2 EcoBlue Plus Combi 63 10 Maintenance 098 mM c NED 15 m D Chimney Sweep Mode This function must not be activated whilst the burner is lit The case front panel must be fitted when checking combustion Ensure the system is cold 1 Press o together and hold for at least 6 seconds 2 is displayed briefly followed by 7 7 3 flashing alternately with g or J 2 J represents MAXIMUM HEATING input represents MAXIMUM DHW input whilst denotes MINIMUM input 3 Press 111 or to adjust the input 4 The valve must be checked and set at MAXIMUM DHW input amp MINIMUM input Flue Sampling Point Plug Analyser Probe C Tm 77 Offset Adjustment Sw TA e Screw cap fitted NOD Reduce Increase CO at min rate at min rate Fig 100 if the is reset at minimum eve rate it must be rechecked at maximum rate again and adjusted if required If the CO2 is reset at maximum rate it must be rechecked at minimum rate and adjusted if required 64 EcoBlue Plus Combi 10 3 25 Setting the Gas Valve CO5 Check e The CO2 must be only be checked and adjusted to set the valve if a suitable calibrated
46. coils are clear 10 Inspect the burner electrodes position Fig 45 and insulation cleaning or replacing if necessary Clean any dirt or dust from the boiler 11 Carefully examine all seals insulation amp gaskets replacing as necessary Look for any evidence of leaks or corrosion and if found determine amp rectify the cause 12 Prime the trap and reconnect the pipes to the top Reassemble in reverse order Electrode Position Fig 45 Flame Sensing Electrode re Spark Ignition Electrode EcoBlue Plus Combi 53 10 Maintenance Control Box removed for clarity Flow Restrictor Turbine amp Filter View 4 underneath appliance DHW Isolation Cock Fig 47 Sealing Gasket Spark Ignition Electrode gt Electrode Leads Flame Sensing Electrode i Sealing Gasket Fig 49 54 EcoBlue Plus Combi Expansion Vessel Charge 1 0 bar 13 To check the charge accurately ensure the system is cold It is also necessary to relieve the pressure by draining the boiler Using a suitable gauge check the pressure at the valve on the underside of the vessel Adjust the pressure as required and repressurise the system A right angled valve extension will aid checking and repressurising DHW Filter Fig 48 14 If the flow of domestic hot water is diminished it
47. combustion analyser is available operated by a competent person see Section 10 1 3 1 The combustion 2 may be checked after running the boiler for several minutes To do this it is necessary to operate the boiler in Chimney Sweep The CO should be 8 7 0 2 at MAXIMUM 2 It is possible to alter the CO by adjustment of the gas valve At maximum rate the Throttle Adjustment Screw should be turned using a suitable 2 5mm hexagon key until the correct reading is obtained Fig 100 Turning clockwise will reduce the 2 Anticlockwise will increase the CO 3 The CO must then be checked at minimum rate The CO should be 8 4 0 2 at MINIMUM 4 With the boiler on minimum the Offset Adjustment Screw must be altered using a suitable 4mm hexagon key after removing the cap Fig 100 Turning anti clockwise will reduce the 2 Clockwise will increase the CO 5 Check the Combustion Performance CO CO ratio This must be less than 0 004 Refit the sampling point plug and ensure there is no leakage of products Throttle Adjustment Screw cover removed NO Reduce CO2 Increase CO2 at max rate at max rate Do not turn the adjustment screws more than 1 8 of a turn at a time Allow the analyser reading to settle before any further adjustment 7212136 02 08 14 11 Troubleshooting Table Of Error Codes 2 2 H2 Ho Biot 3 110
48. e 4 6 Accessories amp Options 4 6 1 Optional Extras 1 Various timers external controls etc are available as optional extras gt Plug in Mechanical Timer Kit 7212341 gt Plug in Digital Timer Kit 7212342 gt Wireless RF Mechanical Thermostat Kit 7212343 gt Wireless RF Digital Programmable Room Thermostat Kit 7212344 gt Single Channel Wired Programmable Room Thermostat Kit 7212438 gt Wired Outdoor Weather Sensor 7213356 gt Two Channel Wired Programmer Kit 7212443 gt Single Channel Wired Programmer Kit 7212444 gt Mechanical Room Thermostat 7209716 gt Flue Accessories elbows extensions clamps etc refer to the Flue Accessories amp Fitting Guide supplied in the literature pack p Remote relief valve kit 512139 gt Boiler discharge pump 720648301 1M Drain Pipe Trace Heating Element 720644401 gt 2M Drain Pipe Trace Heating Element 720664101 Drain Pipe Trace Heating Element 720664201 gt 5M Drain Pipe Trace Heating Element
49. e De Aeration Function should be activated A 2 On refilling the system ensure that there is no heating or hot water demand but that there is power to the boiler It is also recommended that the gas supply is turned off to prevent inadvertent ignition of the burner Re pressurise the system to 1 5 bar 3 Press j amp 111 together and hold for at least 6 seconds The De Aeration Function will be activated 4 The boiler pump will run for up to 10 minutes during which time the diverter valve will switch between heating amp hot water This will purge air from the system The display will show F IZ 5 Once De Aeration is complete recommission the appliance and check that the inhibitor concentration is sufficient gt gt See Section 7 3 1 for more detail 7212136 02 08 14 8 Operation N NN MN NN 7212136 02 08 14 Operation 8 8 1 General 1 the responsibility of the installer to instruct the user in the day to day operation of the boiler and controls and to hand over the completed Benchmark Checklist at the back of this manual 2 Set the central heating and hot water temperatures to the requirements of the user Instruct the user in the operation of the boiler and system 3 The temperature on the boiler must be set to a higher temperature than the cylinder thermostat to achieve the required hot water demand 4 Instruct the user in the operation of the boi
50. e electrodes noting their orientation 2 Check the condition of the sealing gaskets and replace if necessary Reassemble in reverse order Fig 49 3 If satisfactory combustion readings are not obtained ensure the electrode position is correct and perform the combustion check again 7212136 02 08 14 Maintenance 10 10 3 2 Fan Figs 50 amp 51 1 Remove the clip securing the gas feed pipe to the air gas venturi Disconnect the pipe 2 Undo the screws securing the air gas collector to the extension piece and disconnect the fan electrical plugs Fig 50 3 Remove the collector and fan assembly being careful to retain the gasket 4 Undo the securing screw and remove the airbox disengaging it from the fan venturi Undo the screws securing the fan to the collector Retain the gasket 5 Undo the screws securing the venturi to the fan noting its position and transfer to the new fan replacing the seal if necessary Examine the gasket s and replace if necessary Cover Control Box removed for clarity Gasket Air Gas Collector Air Gas Venturi f re P 7 5 s Gas Feed 4 Clip Pipe Fig 50 10 3 3 Air Gas Venturi Figs 50 amp 51 1 Undo the securing screw and remove the airbox disengaging it from the fan venturi Remove the clip securing the gas feed pip
51. e flue trims supplied can be fitted on the outer and inner faces of the wall of installation 5 3 11 Terminal Guard 1 When codes of practice dictate the use of terminal guards Fig 12 Multifit accessory part no 720627901 can be used NOTE This is not compatible with Flue Deflector referred to below 2 There must be a clearance of at least 50mm between any part of the terminal and the guard 3 When ordering a terminal guard quote the appliance name and model number 4 The flue terminal guard should be positioned centrally over the terminal and fixed as illustrated 5 3 12 Flue Chimney Deflector 1 Push the flue deflector over the terminal end It may point upwards as shown or up to 45 either way from vertical Secure the deflector to the terminal with screws provided Fig 13 5 3 13 Flue Chimney Accessories gt full details of Flue Accessories elbows extensions clamps etc refer to the Flue Installation Guide supplied in the literature pack 5 4 Transport 1 This product should be lifted and handled by two people When lifting always keep your back straight and wear protective equipment where necessary Carrying and lifting equipment should be used as required e g when install in a loft EcoBlue Plus Combi 35 5 Before Installation Pre plumbing Fig 14 Ii 5 5 Unpacking amp Initial Preparation 5 5 1 Unpacking RISK ASSESSMENT Before commencing the installation it is recommended that
52. e for external use EcoBlue Plus Combi 29 5 Before Installation Termination to a drain Boiler or gully pe Of bina Metn Pipe run 5 Mini fay Pipe must terminate above water level but below surrounding surface Cut end at 45 iv Termination to a purpose made soakaway Further specific requirements for soakaway design are referred to in BS 6798 500mm min Boiler 5 per Metre Of pipe run Minimum fall Holes in the soak away must face away from the building v pumped into an internal discharge branch e g sink waste downstream of the trap metre of Sink 2 5 Minimum fall Pipe run Basement or similar t heated Pipe must terminate above water level but below surrounding surface Cut end at 45 Boiler Condensate Pump vi pumped into an external soil amp vent pipe 5 per Metre of 2 5 Minim Unheated Location e g Garage Basement or similar heated 30 EcoBlue Plus Combi 9 If the boiler is fitted in an unheated location the entire condensate discharge pipe should be treated as an external run and sized and insulated accordingly 10 In all cases discharge pipe must be installed to aid disposal of the condensate To reduce the risk of condensate being trapped as few bends and fittings as
53. e pipe from the kit 2 Determine the routing of the discharge pipe in the vicinity of the boiler Make up as much of the pipework as is practical including the discharge pipe supplied gt gt Note the intended position of the pipe is between the hot water outlet and gas inlet pipes see Section 3 2 Make soldered joints before connecting to the pressure relief valve Do not adjust the position of the valve The discharge pipe must be installed before pressurising the system me 3 The pipework must be at least 15mm diameter and run continuously downwards to a discharge point outside the building See section 5 2 9 for further details 4 Utilising one of the sealing washers connect the discharge pipe to the adaptor and tighten the nut hand tight plus 1 4 turn to seal 5 Complete the discharge pipework and route it to the outside discharge point 7212136 02 08 14 pouring 300ml of water into flue spigot Front Panel and Control Box removed for clarity Fig 23 Condensate Trap Connection elbow supplied Locating Lug Case Front Panel Case Front Panel Securing Screws 7212136 02 08 14 Installation 6 6 2 2 Connecting the Condensate Drain 1 Remove the blanking cap and using the elbow supplied con
54. e to the venturi 2 Undo the screws securing the collector to the extension piece lt and disconnect the fan electrical plugs 3 Remove the collector and fan assembly being careful to retain m the gasket Venturi 4 Undo the screws securing venturi to the fan noting its Fan Fig 51 position and fit the new venturi replacing the seal if necessary Examine the gasket and replace if necessary 5 After changing the venturi check the combustion see Section 7 4 1 7212136 02 08 14 EcoBlue Plus Combi 55 10 Maintenance 10 3 4 Burner Cover A 1 Undo securing screw and remove the airbox disengaging it from the fan venturi Remove the clip securing the gas feed pipe to the air gas venturi and disconnect the fan electrical plugs Burner Burner 2 Undo the screws securing the air gas collector to the Gasket extension piece Note its orientation and remove the extension piece where fitted from the cover Extension Piece note orientation 3 Undo the screws securing the burner Withdraw the burner from the cover and replace with the new one 4 Examine the gasket s replacing if necessary 1 Note that the gaskets are not the same 5 After changing the burner check the combustion Air Gas Collector 10 3 5 Insulation Fig 53 1 Undo the securing screw and remove the ai
55. eating 24 model kW 24 Outercase Dimensions only Integral with appliance 28 model kW 28 Casing Height 700mm bar 33 model kW 33 Overall Height Inc Flue Elbow 860mm Min Pre charge Pressure 1 0 Casing Width 390mm litre Gas Nozzle Injector Casing Depth 5 299 Max Capacity of 24 model mm 5 0 System 100 28 model 6 5 6 33 model mim 9656 Above Casing 175 on Primary Water Content Below Casing 150mm Min 7 of Boiler unpressurised 2 5 NO Class 5 Front 450 mm Min For Servicing Front 5 mm Min In Operation Temperatures L H Side 5 mm Min C H Flow Temp adjustable R H Side 5 Min 25 C to 80 C max 5 NOTE All data in this section are nominal This is MINIMUM recommended dimension values and subject to normal production Greater clearance will aid installation and D H W Flow Temp adjustable tolerances maintenance 40 C to 60 max 5 dependent upon flow rate Weights 24 model Packaged Boiler Carton 39 2kg Installation Lift Weight 34kg 28 model Packaged Boiler Carton 39 2kg Installation Lift Weight 34kg 33 model Packaged Boiler Carton 41 2 Installation Lift Weight 36kg 7212136 02 08 14 EcoBlue Plus Combi 15 Metre wg 3 Technical Specifications 3 4 Technical Data cont Pump SEDBUK Declaration NATURAL GAS ONLY Head 969 gapni below SAP 2005 Seasonal Efficiency is Gas Rate Natural Gas C20 91 1 After 10 mins SAP 2009 A
56. ect the boiler from the mains and close the main gas inlet valve After maintenance or repair work check the installation to ensure that there are no leaks CAUTION The boiler should be protected from frost Only remove the casing for maintenance and repair operations Replace the casing after maintenance and repair operations EcoBlue Plus Combi 13 2 Safety 2 3 Specific Safety Instructions 2 3 1 Handling General The following advice should be adhered to from when first handling the boiler to the final stages of installation and also during maintenance Most injuries as a result of inappropriate handling and lifting are to the back but all other parts of the body are vulnerable particularly shoulders arms and hands Health amp Safety is the responsibility of EVERYONE There is no safe limit for one man each person has different capabilities The boiler should be handled and lifted by TWO PEOPLE Do not handle or lift unless you feel physically able Wear appropriate Personal Protection Equipment e g protective gloves safety footwear etc Preparation Co ordinate movements know where and when you are both going Minimise the number of times needed to move the boiler plan ahead Always ensure when handling or lifting the route is clear and unobstructed If possible avoid steps wet or slippery surfaces unlit areas etc and take special care on ladders into lofts Technique When h
57. ed with the boiler AN WARNING SUPPORT All flue systems MUST be securely supported at a MINIMUM of once every metre amp every change of direction It is recommended that every straight piece is supported irrespective of length Additional supports are available as accessories VOIDS Consideration must be given to flue systems in voids and the provision of adequate access for subsequent periodic visual inspection This bend is equivalent to 1 metre O This bend is equivalent to 1 metre Total equivalent length A B C 2 x 90 Bends NOTE Horizontal flue pipes should always be installed with a fall of at least 1 5 from the terminal to allow condensate to run back to the boiler 7212136 02 08 14 Ensure that part of the white outer chimney duct is visible Flue Deflector 7212136 02 08 14 Before Installation 5 5 3 9 Flue Chimney Lengths 1 The standard horizontal telescopic kit allows for lengths between 315mm and 500mm from elbow to terminal without the need for cutting Fig 11 Extensions of 250mm 500mm amp 1m are available The maximum permissible equivalent flue length is 10 metres 60 100 system vertical amp horizontal 20 metres 80 125 system vertical amp horizontal 15 metres 80 80 twin pipe 8 metres 60 100 system vertical connected to ridge terminal 5 3 10 Flue Chimney Trim 1 The flexibl
58. ef Valve 5 3 Choice of the Location sise 5 3 1 Location of the Appliance 5 3 2 Data Plate 5 3 3 Bath amp Shower Rooms eee 5 3 4 Ventilation ELLE 5 3 5 Condensate Drain 5 3 6 Clearances 5 3 7 Flue Chimney Location c n 5 3 8 Horizontal Flue Chimney Systems m 4 EcoBlue Plus Combi 7212136 02 08 14 Contents 5 3 9 Flue Chimney Lengths DIE EI IU EO C 35 5 3 10 Flue Chimney Trim N Ba eS Te dene Sees Oe Ves es 35 5 3 11 Terminal Guard DEDIT GELD LLLI DIDI I EL LL EU E LE 35 5 3 12 Flue Chimney Deflector EE A E St EE DIL 35 5 3 13 Flue Chimney Accessories EE EE Eat desees E EEA N 35 5 4 Transport EP AEN A AE EET Ce nt A EP E E E eap PE R E A A E E E E E E 35 5 5 Unpacking amp Initial Preparation pP IIR A AEE D DD OT P I E E ETAT PETE 36 5 5 1 Unpacking 5 5 2 Initial Preparation ENEE EP P TETEE AT II E APEEP IOP EE EA EEE ESE OAE I EE LUI 36 553 Flushing 5 6 Connecting Diagrams 56 1 System Filling and Pressurising mmn nennen 37 5 6 2 Domestic Hot Water Circuit VERS nn Sea KA sons YER ado RAS HN LER ERREUR ER RES RR RO 37 6 Installation EU UU ITALI UL UII OM 38 6 1 General DT kN Kenia xe ERE en CE UES 38 6 2 Assembly PR TE I EL ILE ITI LIT F EESNA AEEA AKEPA III ODDS 38 6 2 1 Fitting the Pressure Relief Discharge Pipe
59. ensor Kit gt Continue with the installation and commissioning of the boiler as described in this manual EcoBlue Plus Combi 43 7 Commissioning 7 Commissioning Automatic Vent 7 1 General 1 Reference should be made to 5 12828 12831 8 14336 when commissioning the boiler Ensure that the condensate drain trap has been primed see Section 6 2 2 paragraph 3 2 At the time of commissioning complete all relevant sections of the Benchmark Checklist at the rear of this publication 3 Open the mains water supply to the boiler and all hot water taps to purge the DHW system 4 Ensure that the filling loop is connected and open then open the heating flow and return valves on the boiler Ensure that the cap on the automatic air vent on the pump body is opened Fig 37 5 The system must be flushed in accordance with BS 7593 see Section 5 2 6 and the flushing agent manufacturers instructions Control Box removed for clarity 6 Pressurise the system to 1 5 bar Fig 38 then close and disconnect the filling loop 7 Test for gas tightness turn the gas supply on and purge according to in GB BS 6891 and in IE 1 5 813 Domestic Gas Installations 7 2 Checklist before Commissioning HER ARE ES IW o NEE IE m m m we 7 7 2 1 Preliminary Electrical Checks
60. er manufacturers requirements Competence can be demonstrated by satisfactory completion of the CPA1 ACS assessment which covers the use of electronic portable combustion gas analysers in accordance with BS 7967 Parts 1 to 4 4 Check the Combustion Performance CO CO ratio gt Set the to operate at maximum rate as described After refitting the sampling in Section 7 4 point plug ensure there is no leakage of products 5 Remove the plug from the flue sampling point insert the analyser probe and obtain the CO CO ratio This must be less than 0 004 If the combustion reading CO CO ratio is greater than this and the integrity of the complete flue system and combustion circuit seals has been verified and the inlet gas pressure and gas rate are satisfactory either Perform the Standard Inspection and Maintenance Section 10 2 amp re check Perform Setting the Gas Valve Section 10 3 25 amp re check Replace and set the gas valve Sections 10 3 24 amp 25 amp re check 52 EcoBlue Plus Combi 7212136 02 08 14 gt 6 Case Front Panel Securing Screws Control Box removed for clarity Condensate Trap Gasket Condensate Drain Pipe Connection Fan Collector and Cover Assembly Fig 46 Gas Feed
61. er name Telephone number Address Boiler make and model Boiler serial number Commissioned by PRINT NAME Gas Safe register number Company name Telephone number Company address Commissioning date To be completed by the customer on receipt of a Building Regulations Compliance Certificate Building Regulations Notification Number if applicable CONTROLS tick the appropriate boxes Room thermostat and programmer timer Programmable room thermostat Time and temperature control to heating Load weather compensation Optimum start control Time and temperature control to hot water Cylinder thermostat and programmer timer Combination Boiler Heating zone valves Fitted Not required Hot water zone valves Fitted Not required Thermostatic radiator valves Fitted Not required Automatic bypass to system Fitted Not required Boiler interlock Provided ALL SYSTEMS The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer s instructions What system cleaner was used What inhibitor was used Quantity Has a primary water system filter been installed CENTRAL HEATING MODE measure and record Gas rate OR Burner operating pressure if applicable OR Gas inlet pressure Central heating flow temperature Central
62. everse order ensuring that the connections are pushed fully on 10 3 10 DHWNTC Sensor Fig 56 1 Turn off the mains cold water supply tap and draw off the residual domestic hot water 2 Ease the retaining tab on the sensor away and disconnect the electrical plug 3 Remove the retaining clip and withdraw the sensor from the hydraulic outlet assembly Examine the O ring replacing if necessary 4 Reassemble in reverse order The plug will only fit one way EcoBlue Plus Combi 57 10 Supply Plug Maintenance Electrical Socket Headed Screw Fig 57 58 Automatic Air Vent EcoBlue Plus Combi Control Box removed for clarity Pump Body Pump Flow Pipe 10 3 11 Pump Head Only Fig 57 1 Disconnect the electrical supply plug from the pump 2 Close the flow and return isolation taps and drain the boiler primary circuit For ease of access remove the diverter valve motor 10 3 20 3 Remove the socket head screws securing the pump head to the body and draw the head away 4 Reassemble in reverse order 10 3 12 Pump Complete Fig 58 1 Disconnect the electrical supply plug from the pump 2 Close the flow and return isolation taps and drain the boiler primary circuit For ease of access remove the heating pressure gauge 10 3 15 amp diverter valve motor 10 3 20 3 Undo the t
63. external run amp trace heating It is strongly recommended to discharge internally into the household drainage system If connecting to a rain water drain that drain MUST discharge into a foul drain 21 5mm 32mm Insulation Key to 3 Pipework 1 Termination to an internal soil and vent pipe AVA 450mm min 450mm is applicable to properties up to 3 storeys For multi storey building installations consult BS 6798 ii External termination via internal discharge branch Boiler e g sink waste downstream 50mm of Pipe Metre Tun Pipe must terminate above water level but below surrounding surface Cut end at 45 It is NOT RECOMMENDED to connect upstream of the sink or other waste water receptacle 7212136 02 08 14 Before Installation 5 5 3 5 Condensate Drain FAILURE TO INSTALL THE CONDENSATE DISCHARGE PIPEWORK CORRECTLY WILL AFFECT THE RELIABLE OPERATION OF THE BOILER jui o CAREFUL CONSIDERATION MUST BE GIVEN TO THE POSSIBILITY OF THE PIPEWORK BEING SUBJECT TO FREEZING CONDITIONS AND APPROPRIATE MEASURES TAKEN TO PREVENT BLOCKAGE CORRECT INSTALLATION IN ACCORDANCE WITH THIS SECTION WILL CONSIDERABLY MINIMISE THE LIKELIHOOD OF BLOCKAGE AND SUBSEQUENT BOILER LOCK OUT A CONDENSATE DISCHARGE PUMP AND PIPE TRACE HEATING ARE AVAILABLE AS ACCESSORIES see paragraphs 5 3 6 12 to 5 3 6 15 for further details The condensate discharge pipe MUST NOT RISE a
64. flue trims if required and refit the elbow to the boiler adaptor ensuring that it is pushed fully in Secure the elbow with the screws supplied in the boiler fitting kit Fig 29 Apply the lubricant supplied for ease of assembly do not use any other type Ensure elbow is fully engaged into boiler adaptor 11 Draw the flue back through the wall and engage it in the elbow It may be necessary to lubricate to ease assembly of the elbow and flue Fig 30 12 Ensure that the terminal is positioned with the slots to the bottom Fig 31 Secure to the elbow with the screws supplied with the telescopic flue Fig 30 Fig 29 e It is essential that the flue terminal is fitted as shown to ensure correct boiler operation and prevent water entering the flue Apply the lubricant 13 Make good between the wall and air duct outside the supplied for ease of building appropriate to the wall construction and fire rating assembly do not use any other type Ensure Flue is fully engaged into Elbow 14 If necessary fit a terminal guard see Section 5 3 11 e There must be no part of the air duct white tube visible outside the property Slots at bottom Fig 31 7212136 02 08 14 EcoBlue Plus Combi 41 6 Installation Control Box Fig 34 Fused Spur Room Stat Terminal M1 Fig 35 Fused Spur Room Stat Exten
65. h Zone 2 CH Flow Temperature alternates with lon current alternates with Burner working hours alternates with Zone 1 CH mode alternates with Zone 2 CH mode alternates with DHW circuit operating mode alternates with Boiler operating mode alternates with Solar plant operating mode alternates with Manufacturer information alternates with Manufacturer information Depending upon boiler model and any system controls connected to the appliance not all information codes will be displayed and some that are will not have a value Press b R to return to the normal display EcoBlue Plus Combi 5 Set the central heating and hot water temperatures to the requirements of the user Instruct the user in the operation of the boiler and system 6 Instruct the user in the operation of the boiler controls 7 Demonstrate to the user the action required if a gas leak occurs or is suspected Show them how to turn off the gas supply at the meter control and advise them not to operate electric light or power switched and to ventilate the property 8 Show the user the location of the system control isolation Switch and demonstrate its operation 9 Advise the user that they may observe a plume of vapour from the flue terminal and that it is part of the normal operation of the boiler 7 6 2 System Draining 1 If at any time after installation it is necessary to drain amp refill the central heating system e g when replacing a radiator th
66. heating return temperature COMBINATION BOILERS ONLY Is the installation in a hard water area above 200ppm If yes and if required by the manufacturer has a water scale reducer been fitted What type of scale reducer has been fitted DOMESTIC HOT WATER MODE Measure and Record Gas rate OR Burner operating pressure at maximum rate OR Gas inlet pressure at maximum rate Cold water inlet temperature Hot water has been checked at all outlets Yes Temperature Water flow rate CONDENSING BOILERS ONLY The condensate drain has been installed in accordance with the manufacturer s instructions and or BS5546 BS6798 ALL INSTALLATIONS At max rate CO ppm CO CO At min rate where possible CO ppm CO CO Record the following The heating and hot water system complies with the appropriate Building Regulations The boiler and associated products have been installed and commissioned in accordance with the manufacturer s instructions The operation of the boiler and system controls have been demonstrated to and understood by the customer The manufacturer s literature including Benchmark Checklist and Service Record has been explained and left with the customer Commissioning Engineer s Signature Customer s Signature To confirm satisfactory demonstration and receipt of manufacturer s literature All installations in England and Wales must be
67. hree screws securing the body to the inlet assembly and pump flow pipe Draw the complete pump forwards 4 Remove the automatic air vent and transfer to the new pump body 5 Examine the O ring seals replacing if necessary and reassemble in reverse order 10 3 13 Automatic Air Vent Fig 58 1 See Section 10 3 23 to remove the expansion vessel Close the flow and return isolation taps and drain the primary circuit 2 The automatic air vent is a bayonet fitting Remove by twisting anticlockwise 3 Fit the new automatic air vent ensuring the O ring is fitted and the cap is open Reassemble in reverse order 7212136 02 08 14 O Ring Seal Pressure Relief Valve Discharge Pipe Control Box removed for clarity Heating Pressure Gauge Capillary Fig 60 Heating Pressure Gauge 7212136 02 08 14 Maintenance 10 10 3 14 Safety Pressure Relief Valve Fig 59 1 Close the flow and return isolation taps and drain the primary circuit 2 To aid access disconnect the igniter plug amp disconnect the two pipes from the top of the condensate trap and the drain pipe from the trap outlet Undo the screw amp washer securing the trap to the boiler lower panel 3 Disengage the lip on the trap from the slotted bracket and remove the trap taking care not to spill any residual condensate 4 Disconnec
68. i Max Operatin 2 5 Max Min 24 model w 123 oo 0 5 24 mod l idi 20 a 28 model w 132 28 model kW 24 57 moge Recommended Operating Range 1 2 33 model 135 33 model kW 28 6 8 Electrical Protecti DHW Circuit bar ectrical Protection Heat Output CH Non Condensing Pressures IPX5D without integral timer Max O 8 Max Min IP20 with integral timer ax 24 model kW 20 4 6 Wwithiintegral timer Min Operating 0 15 28 model kW 24 55 External Fuse Rating 3A 33 model kW 28 6 6 Flow Rates 24 28 33 Internal Fuse Rating F2L l min l min l min Heat Output CH Condensing Condensate Drain Rate To accept 21 5mm 3 4 in plastic waste pipe 24 model kW 21 2 4 9 DHW Flow Rate 28 model kW 25 3 6 0 Flue Terminal Diameter 100mm 35 C Rise 9 8 115 13 5 33 model kW 29 6 7 1 Dimensions Projection 125mm IMPORTANT Min Working Heat Input DHW Net Connections copper tails DHW Flow Rate 2 2 2 Max Gas Inlet 22mm Where Low Flow Taps or Fittings are intended to 24 model kW 24 7 Heating Flow 22mm be used in the DHW system connected to a Baxi 28 model kW 28 9 Heating Return 22mm EcoBlue Combi it is strongly recommended that 33 model kW 34 Cold Water Inlet 15mm the DHW flow rate DOES NOT fall below 2 5 Hot Water Outlet 15 l min This will ensure reliable operation of the 7 mm DHW function Heat Output DHW Pressure Relief Discharge 15mm Max Expansion Vessel For Central H
69. lations A range of optional controls is available Full details are contained in the relevant Sales Literature EcoBlue Plus Combi 25 5 26 Before Installation EcoBlue Plus Combi 5 2 6 Treatment of Water Circulating Systems 1 All recirculatory water systems will be subject to corrosion unless they are flushed and an appropriate water treatment is applied To prevent this follow the guidelines given in BS 7593 Treatment of Water in Domestic Hot Water Central Heating Systems and the treatment manufacturers instructions 2 Treatment must involve the use of a proprietary cleanser such as Sentinel X300 or X400 or Fernox F3 and an inhibitor such as Sentinel X100 or Fernox MB 1 3 Full instructions are supplied with the products For further information contact Sentinel 0800 389 4670 or Fernox 0870 870 0362 Failure to flush and add inhibitor to the system will A invalidate the appliance warranty 4 It is important to check the inhibitor concentration after installation system modification and at every service in accordance with the inhibitor manufacturer s instructions Test kits are available from inhibitor stockists 5 Complete the label supplied with the inhibitor and attach to the inside of the boiler case Detail of system treatment should be added for future reference 6 For information or advice regarding any of the above contact Technical Enquiries 0844 871 1555 5 2 7 Showers 1 If a sho
70. lel to a boundary may not be less than 300mm in accordance with the diagram opposite Fig 9 If fitting a Plume Displacement Flue Kit the air inlet must be a minimum of 150mm from any opening windows or doors see Fig 10 The Plume Displacement flue gas discharge terminal and air inlet must always terminate in the same pressure zone i e on the same facing wall EcoBlue Plus Combi 33 5 34 Before Installation Horizontal Flues Plume Displacement Kit 60 100 dia 1M Extensions 45 amp 93 elbows are also available see the separate Flue Guide EcoBlue Plus Combi 5 3 8 Horizontal Flue Chimney Systems 1 The standard telescopic flue is suitable only for horizontal termination applications 2 All fittings should be fully engaged The approximate engagement is 40mm Apply the lubricant supplied to the seal on each fitting to aid assembly 3 Maximum permissible equivalent flue lengths are 60 100 80 125 Horizontal Concentric 10 metres 20 metres 4 Any additional in line bends in the flue system must be taken into consideration Their equivalent lengths are Concentric Pipes 135 bend 0 5 metres 93 bend 1 0 metres Flue length is measured from point 1 to ii as shown A The elbow supplied with the standard horizontal telescopic flue kit is not included in any equivalent length calculations LI Read this section in conjunction with the Flue Installation Guide suppli
71. ler and system controls 5 Demonstrate to the user the action required if a gas leak occurs or is suspected Show them how to turn off the gas supply at the meter control and advise them not to operate electric light or power switched and to ventilate the property 6 Show the user the location of the system control isolation Switch and demonstrate its operation 7 Advise the user that they may observe a plume of vapour from the flue terminal and that it is part of the normal operation of the boiler 8 The method of repressurising the primary system should be demonstrated 9 If at any time after installation it is necessary to drain amp refill the central heating system e g when replacing a radiator the De Aeration Function should be activated see 7 6 2 8 2 To Start up Switch on the boiler at the fused spur unit and ensure that the time control is in the on position and any other controls e g room thermostat are calling for heat Press the DR once to bring the boiler out of Standby mode The boiler will begin its start sequence 8 3 To Shutdown Isolate the mains power supply at the fused spur unit Isolate the gas supply at the boiler valve EcoBlue Plus Combi 49 8 Operation 8 4 Boiler Information Standby Reset Esc View 08 0 6 IW o mr Central Heating Temperature Adjustment
72. may be necessary to clean the filter 15 Turn the cold mains isolation cock Fig 47 off and draw off from a hot tap 16 Disconnect the pump cable remove the retaining clip and extract the filter cartridge and rinse thoroughly in clean water Reassemble and check the flow 17 Check the operation of the Safety Pressure Relief Valve Simulate Flame Failure fault by isolating the supply at gas cock and operating the boiler H133 should be displayed 18 Reassemble the appliance in reverse order ensuring the front case panel is securely fitted Recommission the boiler 19 Complete the relevant Service Interval Record section of the Benchmark Commissioning Checklist at the rear of this publication and then hand it back to the user 10 3 Specific Maintenance Operations Changing Components A WARNING When changing components ensure that both the gas and electrical supplies to the boiler are isolated before any work is started When the component has been changed recommission the boiler as described in Section 7 Always examine any seals or gaskets replacing where necessary The Case Front Panel MUST seal effectively against the boiler side panels See Section 10 2 paragraph 2 for removal of case panel door etc 10 3 1 Spark Ignition amp Flame Sensing Electrodes 1 Note their position and disconnect the electrode leads Remove the retaining screws securing each of the electrodes to the combustion box cover and remove th
73. mestic hot water mode Replace POB see Wiring Diagram YES Check diverter valve motor cable Is there 230V at 2 Diverter valve motor Replace diverter valve motor assembly clean and rotor connector for approx 5V DC moving freely between red amp blue from Hall effect sensor see Wiring Diagram L Is mains water filter amp Check wiring and PCB X22 Clean or replace Replace PCB Temperature sensors faulty Cold resistance approximately 10 25 CH sensor Replace sensor 20 25 Flue sensor resistance reduces with increase in temp 2 If pump is running the heat exchanger YES Replace heat exchanger could be obstructed 70 EcoBlue Plus Combi Replace Hall Effect Sensor 7212136 02 08 14 12 Decommissioning 7212136 02 08 14 Decommissioning 12 12 1 Decommissioning Procedure 1 Disconnect the gas amp electric supplies and isolate them 2 Drain the primary circuit and disconnect the filling device 3 Dismantle the chimney system and remove the boiler from the wall mounting frame EcoBlue Plus Combi 71 13 13 Spare Parts 72 Spare Parts EcoBlue Plus Combi 13 1 General 1 If following the annual inspection or maintenance any part of the boiler is found to need replacing use Genuine Baxi Spare Parts only 13 2 Spare Parts List Key Description Fan Burner 24 amp 28 Burner 33 Spark Ignition
74. nates with Boiler operating mode 18 alternates with Solar plant operating mode 19 alternates with Manufacturer information 20 alternates with Manufacturer information 7212136 02 08 14 Troubleshooting 11 11 4 Error Codes 1 If a fault occurs on the boiler an error code may be shown by the facia display 2 The codes are a flashing number either two or three digit preceded by the symbol H followed by 20 28 40 160 or 321 indicates possible faulty components 110 and 111 indicate overheat of the primary system water 117 is displayed when the primary water pressure is greater than 2 7 bar Restoring the correct pressure will reset the error 118 is displayed when the primary water pressure is less than 0 5 bar Restoring the correct pressure will reset the error 133 indicates that the gas supply has been interrupted ignition has failed or the flame has not been detected 128 is displayed if there has been a flame failure during normal operation 125 is displayed in either of two situations i If within 15 seconds of the burner lighting the boiler temperature has not changed by 1 C ii If within 10 minutes of the burner lighting the boiler actual temperature twice exceeds the selected temperature by 30 In these instances poor primary circulation is indicated 3 By pressing the Reset button for 1 to 3 seconds when 110 125 amp 133 are displayed it is possible to relight the boiler
75. nect the condensate drain pipework to the boiler condensate trap outlet pipe gt Ensure the discharge of condensate complies with any national or local regulations in force see British Gas Guidance Notes for the Installation of Domestic Gas Condensing Boilers amp HHIC recommendations 2 The elbow will accept 21 5mm 3 4in plastic overflow pipe which should generally discharge internally into the household drainage system If this is not possible discharge into an outside drain is acceptable See section 5 3 5 for further details 3 The boiler condensate trap should be primed by pouring approximately 300ml of water into the flue spigot Do not allow any water to fall into the air inlet 6 3 Preparation 6 3 1 Panel Removal 1 Remove the securing screws from the bottom of the case front panel 2 Lift the panel slightly to disengage it from the locating lugs on top of the case and remove it EcoBlue Plus Combi 39 6 Installation 6 4 Air Supply Flue Gas Connections 6 4 1 Connecting the Flue Chimney HORIZONTAL TELESCOPIC FLUE concentric 60 100 Terminal Assembly 1 There are two telescopic sections the terminal assembly and the connection assembly a roll of sealing tape and two self tapping screws 93 elbow is also supplied Connection Assembly Fig 24 2 The two sections can be adjusted to provide a length between 315mm and 500mm Fig 24 when measured from the flue elbow there is 40mm e
76. ngagement into the elbow 3 Locate the flue elbow on the adaptor at the top of the boiler Wall Thickness Set the elbow to the required orientation Fig 25 mp e The flue elbow is angled at 93 degrees to ensure a fall back to the 4 Measure the distance from the outside wall face to the elbow This dimension will be known as X Fig 25 5 If the distance from the flue elbow to the outside face of the wall X in Fig 25 is less than 250mm the connection assembly can be discarded and the terminal assembly fitted directly into the elbow 6 In instances where the dimension X Fig 25 is between 250mm and 315mm it will be necessary to shorten the terminal X assembly by careful cutting to accommodate walls of these 24 thicknesses Wall 7 To dimension X add 40mm This dimension to be known as Thickness y Fig 25 8 Adjust the two telescopic sections to dimension Y and seal the joint with the tape provided Fig 27 Ensure that the labels marked TOP on the terminal and connection assemblies are uppermost TOP Label 9 Using the clearance holes in the connection assembly secure it to the terminal assembly using the screws supplied with the telescopic flue Fig 28 Peak to be uppermost 40 EcoBlue Plus Combi 7212136 02 08 14 Installation 6 Boiler Elbow 10 Remove the flue elbow and insert the flue through the hole in the wall Fit the
77. nnual Efficiency is 24 model m3 h 2 61 89 28 model m3 h 3 05 Pump Available Head 33 model m h 3 59 This value is used in the UK Government s Dynamic nominal Inlet Pressure Standard Assessment Procedure SAP for energy Natural Gas G20 rating of dwellings The test data from which it has mbar 20 been calculated has been certified by 0085 with a CV of 37 78 MJ m NOTE All data in this section are nominal values and subject to normal production tolerances 0 200 400 600 800 1000 1200 Flow Rate 16 EcoBlue Plus Combi 7212136 02 08 14 least 1 5 There must be no part of the air duct white tube visible outside the property 22 3 2 700mm 295mm 390mm 116mm Min 160mm 207mm for 80 125mm flue systems 130mm 106mm 228mm 162mm Flue 100mm Technical Specifications 3 Dimensions and Connections Condensate Pressure Drain Relief Valve 15 26 5 38 mm 65 65 mm _ 65 mm 65 _ _ 65 _ 162 5 mm PRV Heating Hot Water Gas Cold Water Heating Flow Outlet Inlet Return 22mm 15mm 22mm 15mm 22mm EcoBlue Plus Combi 17 7212136 02 08 14 3 Technical Specifications 3 3 Electrical Diagram M2 Low Voltage External Control Connection Boiler br Con
78. nt Central Heating CH Temperature Adjustment Summer Winter Heating Only Mode Display showing all available characters 22 EcoBlue Plus Combi i P Boiler Information View Button ul Increase CH Temperature Button I Decrease CH Temperature Button Increase DHW Temperature Button EE Decrease DHW Temperature Button Summer Winter Only Heating Mode Button BM Summer DHW only mode W Winter DHW 8 CH mode Heating Only Only CH mode Display Description v E d MN ES C ra DHW and CH OFF frost protection still enabled Indicate errors that prevent burner from igniting Error Not resettable by user Water pressure too low Indicates an error resettable by the user Indicates navigation in programming mode parameter Indicates navigation in programming mode Generic error Burner lit DHW mode symbol will flash with demand Heating mode symbol will flash with demand Units for temperature Units for pressure 55 Service due 7212136 02 08 14 Description of the Product 4 45 Standard Delivery 1 The pack contains gt Boiler gt Wall mounting plate pre plumbing jig including isolation valves gt Fittings pack gt Literature pack Installation amp Servicing Manual including Benchmark User Guide Flue Accessories amp Fitting Guide Service Contract Leaflet Registration Card Envelope Fernox Leaflet Wall Templat
79. nt such as a window frame 1200 1500 300 300 1000 600 2000 Only ONE 25mm clearance is allowed per installation If one of the dimensions D E F G or H is 25mm then the remainder MUST be as shown in brackets in accordance with B S 5440 1 7212136 02 08 14 300min Terminal EE Assembly R Top View Rear Flue i x VA Property Boundary Line Plume Displacement Kit wp Air Inlet E f y in SS Opening Window or Door 150mm Fig 10 i 7212136 02 08 14 e i Before Installation 5 Under car ports we recommend the use of the plume displacement kit The terminal position must ensure the safe and nuisance free dispersal of combustion products 2 If the terminal discharges onto a pathway or passageway check that combustion products will not cause a nuisance and that the terminal will not obstruct the passageway 3 If a terminal is less than 2 metres above a balcony above ground or above a flat roof to which people have access then a suitable terminal guard must be provided 4 Reduction to the boundary is possible down to 25mm but the flue deflector must be used see 5 3 12 e i lo i The distance from a fanned draught appliance terminal installed paral
80. nternal diaphragm for sealed hot water systems Guide for gas installations in timber framed housing In IE the following Codes of Practice apply Standard 1 5 813 Domestic Gas Installations The following standards give valuable additional information BS 5546 BS EN 12828 BS EN 12831 BS EN 14336 BS 7074 BS 7593 Installation of hot water supplies for domestic purposes Heating systems in buildings Heating systems in buildings Calculation of load Installation amp commissioning of water based heating systems Expansion vessels and ancillary equipment for sealed water systems Treatment of water in domestic hot water central heating systems 7212136 02 08 14 2 Safety 7212136 02 08 14 2 1 2 2 Safety 2 General Safety Instructions DANGER If you smell gas Turn off the gas supply at the meter Open windows and doors in the hazardous area Do not operate light switches Do not operate any electrical equipment Do not use a telephone in the hazardous area Extinguish any naked flame and do not smoke Warn any other occupants and vacate the premises Telephone the National Gas Emergency Service on 0800 111 999 cw n gu ss Recommendations WARNING Installation repair and maintenance must be carried out by a Gas Safe Registered Engineer in accordance with prevailing local and national regulations When working on the boiler always disconn
81. oiler side panels Flue Sampling Point ME Air Sampling Point 10 1 General 1 For reasons of safety and economy it is recommended that the boiler is serviced annually Servicing must be performed by a competent person in accordance with B S 7967 4 2 After servicing complete the relevant Service Interval Record section of the Benchmark Commissioning Checklist at the rear of this publication e During routine servicing and after any maintenance or change of part of the combustion circuit the following must be checked The integrity of the complete flue system and the flue seals by checking air inlet sample to eliminate the possibility of recirculation Og gt 20 6 amp CO lt 0 2 The integrity of the boiler combustion circuit and relevant seals The operational gas inlet pressure and the gas rate as described in Section 7 5 1 The combustion performance as described in Check the Combustion Performance below 3 Competence to carry out Checking Combustion Performance B S 6798 Specification for Installation amp Maintenance of Gas Fired Boilers not exceeding KWh advises that The person carrying out a combustion measurement should have been assessed as competent in the use of a flue gas analyser and the interpretation of the results The flue gas analyser used should be one meeting the requirements of BS7927 or BS EN50379 3 and be calibrated in accordance with the analys
82. or England and Wales prohibits backflow from appliances into the wholesome water supply due to thermal expansion However this type of instantaneous combination boiler with less than 15 litres of stored capacity does not require any backflow prevention device as any thermal expansion is accommodated within the appliance It is possible in certain circumstances that other cold water demands e g washing machines flushing of W C s may affect the DHW function of the boiler In these instances the fitting of a backflow prevention device and expansion vessel is recommended e If a check valve loose jumpered stop cock water meter water treatment device is fitted may be future to the wholesome water supply connected to the boiler domestic hot water DHW inlet supply then suitable expansion device may be required 4 The boiler s maximum working mains pressure is 8 bar therefore all pipework connections fittings etc should be suitable for pressures in excess of 8 bar A pressure reducing valve must be fitted for pressures in excess of 8 bar The manufacturer of any outlet fittings such as a shower valve may require a lower maximum pressure The pressure reduction must take account of all fittings connected to the DHW system EcoBlue Plus Combi 37 6 Installation 6 Installation from under the Boiler before lifting into position 2 Lift Here Both Sides
83. ot Water modes and also when in standby 1 displayed see section 4 2 3 Boiler Frost Protection Mode 50 EcoBlue Plus Combi 7212136 02 08 14 Settings 9 9 Settings 9 1 Parameters The operating parameters of the boiler have been factory set to suit most systems 7212136 02 08 14 EcoBlue Plus Combi 51 10 Maintenance 10 Maintenance Service Due Message After 11 months operation the Service Due message will be shown on the boiler display If the installation has been subject to prolonged electrical isolation or power cuts this period may be longer than 11 months Once the service has been completed satisfactorily the Service Due message can be reset or de activated To Reset or Disable 1 Press JIII amp for 6 seconds then press Pfor 6 seconds Using MN scroll through until 5 1 is displayed Press P g or higher will be displayed 2 Press to scroll to Confirm with i then press DR to return the display to normal 3 To disable the 5 gf function keep III pressed until 7 is displayed instead of 200 AN WARNING When changing components ensure that both the gas and electrical supplies to the boiler are isolated before any work is started When the component has been changed recommission the boiler as described in Section 7 Always examine any seals or gaskets replacing where necessary The Case Front Panel MUST seal effectively against the b
84. pleted by the installer The relevant section of Building Regulations only relates to dwellings Therefore the checklist only applies if the appliance is being installed in a dwelling or some related structure 0 0 8 6 The flowchart opposite gives guidance for installers on the process necessary to ensure compliance with Building Regulations The Benchmark Scheme Benchmark places responsibilities on both manufacturers and installers BSI The purpose is to ensure that customers are provided with the correct equipment for their needs that it is installed commissioned and ue Print COLLECTIVE MARK Serviced in accordance with the manufacturer s instructions by THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING competent persons and that it meets the requirements of the AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS appropriate Building Regulations The Benchmark Checklist can be ISO 9001 used to demonstrate compliance with Building Regulations and should FM 00866 be provided to the customer for future reference Installers are required to carry out installation commissioning and Servicing work in accordance with the Benchmark Code of Practice Y WRAS m which is available from the Heating and Hotwater Industry Council who APP manage and promote the Scheme Visit www centralheating co uk for more information Baxi Heating UK Ltd 2014 All rights reserved No part of this publication may be
85. rbox disengaging Control Box it from the fan venturi Remove the clip securing the gas feed removed for clarity pipe to the air gas venturi and disconnect the fan electrical plugs Heat 2 Remove the electrodes as described in section 13 1 Exchanger Rear 3 Undo the nuts holding the cover to the heat exchanger Draw Insulation the air gas collector fan and cover assembly away 4 Remove the cover insulation piece Air Gas Collector 5 Fit the new insulation carefully over the burner and align it with L the slots for the electrodes Spark e Ignition 6 If the rear insulation requires replacement remove it and all Electrode Insulation debris from the heat exchanger Also it may be necessary to separately remove the spring clip from the pin in the centre of the heat exchanger and the L shaped clips embedded in the insulation 7 Do not remove the shrink wrapped coating from the replacement rear insulation Keep the insulation vertical and press firmly into position Air Box s Fiame Fig 53 Electrode Sensing 8 Examine the cover seal and replace if necessary Reassemble Leads Electrode in reverse order 56 EcoBlue Plus Combi 7212136 02 08 14 Electrical Plug IM Flue Sensor Fig 54 Control Box removed for clarity Mounting Earth Bracket Connection B Spark Connection A
86. rk fittings etc should be suitable for pressures in excess of 3 bar and temperature in excess of 100 C 2 The pressure relief discharge pipe should be not less than 15mm diameter run continuously downward and discharge outside the building preferably over a drain It should be routed in such a manner that no hazard occurs to occupants or causes damage to wiring or electrical components The end of the pipe should terminate facing down and towards the wall Fig 4 3 The discharge must not be above a window entrance or other public access Consideration must be given to the possibility that boiling water steam could discharge from the pipe 1 The relief valve must never used to drain the system 4 remote relief valve kit is available to enable the boiler to be installed in cellars or similar locations below outside ground level 5 boiler discharge pump is available which will dispose of both condensate amp high temperature water from the relief valve has maximum head of 5 metres gt gt Section 6 2 1 gives details of how to connect the pipe to the boiler 7212136 02 08 14 EcoBlue Plus Combi 27 5 Before Installation Fig 6 _ 9 Data Badge Zone2 fo KON Window Recess 4 1 1 1 1 1 1 1 1 1 Window Recess Zone 2 Fig In GB Only Ceiling Window Recess Zone 2 Outside Zones sn
87. rk or connections is indicated 7212136 02 08 14 Commissioning 7 7 5 Configuring the System 7 5 1 Check the Operational Working Gas Inlet Pressure amp Gas Rate e The system MUST be cold to ensure the is operating under full demand To obtain an accurate measurement on smaller capacity systems it may be necessary to open one or more hot taps and remove the diverter valve motor see Section 10 3 20 in order to maintain the boiler output 1 Press iP amp i together and hold for at least 6 seconds is displayed briefly followed by 3 J amp 3 flashing alternately 3 represents MAXIMUM HEATING input 2 Press III or to adjust the input 2 represents MAXIMUM DHW input 3 With the boiler operating in the maximum rate condition check that the operational working gas pressure at the inlet gas pressure test point is in accordance with B S 6798 amp B S 6891 This must be AT LEAST 17mb 4 Ensure that this inlet pressure can be obtained with all other gas appliances in the property working The pressure should be measured at the test point on the gas cock Fig 41 Measure the Gas Rate 5 With any other appliances amp pilot lights turned OFF the gas rate can be measured It should be Natural Gas 24 model 2 61 m h 28 model 3 05 m h 33 model 3 59 m h 6 Press 1 P amp IM together and hold for at least 6 seconds to exit the function 7 6 Final Instructions 7 6 1 Hando
88. stablished n the event of low water pressure the fault code E118 will be displayed along with the flashing B and Ell symbols This error can be rectified by repressurising the system to at least 1 0 bar The pump will restart automatically once the water pressure is successfully re established and 3 gwill reappear in the display The De aeration function can be repeated as necessary until all air is expelled from the system Flue Sampling Point Plug Analyser Probe After refitting the sampling point plug ensure there is no leakage of products These buttons for Chimney Sweep 7212136 02 08 14 Commissioning 7 7 3 7 3 1 Commissioning Procedure De Aeration Function The display backlight remains lit approx 10 minutes If the backlight goes out during commissioning it does not mean that the process has been completed gt This procedure MUST be carried out 1 Ensure the gas is turned Off Turn the power to the boiler ON The software version will be displayed followed by 2 then flashing briefly before displaying the Standby symbol 2 Press 1 8 together and hold for at least 6 seconds until is briefly displayed followed by 7 2 3 The De Aeration Function is now activated The boiler pump will run for approx 10 minutes During this time the pump will alternate on and off and the diverter valve will
89. switch between heating amp hot water to purge air from the system 4 At the end of the process the boiler will return to the Standby position 7 4 Gas Settings 7 4 1 Checking Combustion Chimney Sweep Mode gt The case front panel must be fitted when checking combustion gt Ensure the system is cold amp the gas supply turned on amp purged The person carrying out a combustion measurement should have been assessed as competent in the use of a flue gas analyser and the interpretation of the results See Section 10 1 3 Important Allow the combustion to stabilise before inserting the Combustion Analyser Probe into the Test Point This will prevent saturation of the analyser 1 Press DR amp together and hold for at least 6 seconds is displayed briefly followed by 213 and the current setting point eg cord flashing alternately Important There may be a delay before the boiler fires 2 To adjust the boiler input setting press button and the current setting point will flash eg f Zor J Press the IW or button again to alter the boiler input setting 3 MAX HEATING input 2 MAX DHW input MIN input 4 The combustion CO level amp CO CO2 ratio must be measured and recorded at MAXIMUM DHW input amp MINIMUM input 5 Follow the flow chart on the next page to comply with the requirement to check combustion on commissioning A The system MUST be cold
90. t any point along its length There MUST be a fall of AT LEAST 2 5 50mm per metre along the entire run EXCEPT when employing a suitable condensate pump in basement and cellar or similar applications The boiler condensate trap incorporates a seal of 75mm therefore it is unnecessary to install an air break and trap in the discharge pipework 1 The condensate outlet will accept 21 5mm 3 4in plastic overflow pipe It is strongly recommended that this discharges internally into the household drainage system Where this is not possible discharge into an outside drain is permissible providing every possible precaution is taken to prevent freezing 2 Ensure the discharge of condensate complies with any national or local regulations in force BS 6798 amp Part H1 of the Building Regulations give further detailed guidance 3 The discharge pipe should be run in a proprietary drain pipe material e g PVC PVC U ABS PVC C or PP 4 Metal pipework is NOT suitable for use in condensate discharge systems 5 The pipe should be a minimum of 21 5mm diameter and must be supported using suitably spaced clips of the correct design to prevent sagging 6 It is advisable that the full length of condensate pipe is run internally and preferably be less than 3 metres 7 Internal runs greater than 3 metres or runs in cold areas should use 32mm waste pipe 8 External runs MUST be a MINIMUM of 32mm and fully insulated with material suitabl
91. t the discharge pipe from the pressure relief valve and remove the sealing grommet 5 Pull off the clip retaining the valve and withdraw it from the outlet assembly 6 Fit the new valve and O ring seal and reconnect the discharge pipe Ensure the grommet is in place to maintain the integrity of the case seal Refit the condensate trap 10 3 15 Heating Pressure Gauge Figs 60 amp 61 1 Close the flow and return isolation taps and drain the primary circuit 2 Hinge the control box downwards To aid access remove the diverter valve motor Remove the clip securing the pressure gauge capillary to the hydraulic assembly 3 Disengage the securing tabs and open the terminal block cover Prise apart the clips that hold the gauge cap 4 Remove the gauge cap and gasket 5 Fit the new gauge ensuring that the capillary is routed to prevent any sharp bends Locate the ridge on the gauge body in the slot in the control box 6 Reassemble in reverse order and ensure the gasket is in position to maintain the integrity of the case seal EcoBlue Plus Combi 59 10 Maintenance Plate Heat Exchanger Control Box removed for clarity Stud Note offset Hydraulic Pressure Sensor Plug Fig 63 Securing Clip captive Plate Heat Exchanger Securing Screws Pump Gas Valve Assemblies and Pipework removed for clari
92. ter pipes Remove the template Fig 17 5 Cut the hole for the flue minimum diameter 116mm 6 Drill the wall as previously marked to accept the wall plugs supplied Secure the wall jig using the fixing screws 7 Using a spirit level ensure that the wall jig is level before finally tightening the screws Fig 16 3 4 BSP Connections 8 Connect the gas and water pipes to the valves on the wall mounting plate using the copper tails supplied Ensure that the sealing washers are fitted between the connections Fit the filling loop as described in the instructions supplied with it 5 5 3 Flushing 1 Flush thoroughly and treat the system according to guidance given in B S 7593 Heating Flow Fig 16 36 EcoBlue Plus Combi 7212136 02 08 14 Double StoP Check Stop Valve Valve Temporary Loop DHW Mains Fig 18 Inlet eum Filling Loop ee Connections Other Tap Outlets Boiler Expansion Vessel Pressure Reducer Valve To Hot Taps See 5 6 2 for instances when these items may be Fig 19 required Where Low Flow Taps or Fittings are intended to be used in the DHW system connected to a Baxi EcoBlue Plus Combi it is strongly recommended that the DHW flow rate DOES NOT fall below 2 5l min This will ensure reliable operation of the DHW
93. the demands of any other gas appliances in the property are taken into consideration It is strongly recommended that pipe of at least 22mm diameter is used 4 The gas service cock incorporates a pressure test point The service cock must be on to check the pressure 5 2 2 Electrical Supply 1 External wiring must be correctly earthed polarised and in accordance with relevant regulations rules In GB this is the current 1 Wiring Regulations In IE reference should be made to the current edition of ETCI rules 2 The mains supply is 230V 50Hz fused at e The method of connection to the electricity supply must facilitate complete electrical isolation of the appliance Connection may be via a fused double pole isolator with a contact separation of at least 3mm in all poles and servicing the boiler and system controls only 5 2 3 Hard Water Areas e Only water that has NOT been artificially softened must be used when filling or re pressurising the primary System If the mains cold water to the property is fitted with an artificial softening treatment device the source utilised to fill or re pressurise the system must be upstream of such a device 5 2 4 Bypass 1 The boiler is fitted with an automatic integral bypass 5 2 5 System Control 1 Further external controls e g room thermostat sensors MUST be fitted to optimise the economical operation of the boiler in accordance with Part L of the Building Regu
94. to ensure the boiler is operating under full demand To obtain an accurate measurement on smaller capacity systems it may be necessary to open one or more hot taps and remove the diverter valve motor see Section 10 3 20 in order to maintain the boiler output 6 Press D R amp II again for at least 6 seconds to exit 7 Press the DR once to bring the boiler out of Standby mode 8 Use the button to toggle through the CH ana DHW ma settings to activate the required modes EcoBlue Plus Combi 45 7 Commissioning c 7 4 4 Checking Combustion cont 9 Follow the flow chart opposite Is O2 gt 20 6 and CO2 lt 0 2 is O2 gt 20 6 and lt 0 2 Is lt 350 and CO CO2 ratio lt 0 004 1 lt 350ppm and 2 ratio lt 0 004 15 CO lt 350ppm and 2 ratio 0 004 No 46 EcoBlue Plus Combi 7212136 02 08 14 Control Box removed for clarity Gas Cock Inlet Pressure Test Point Fig 41 Gas Valve CE Qj SI 17 21 mbar Gas Cock 7 18 22 mbar Bees 19 23 mbar Gas Meter Fig 41a Working Gas Pressures If the pressure drops are greater than shown in Fig 41a above a problem with the pipewo
95. trols Hall Effect Sensor f DHW NTC 8 Sensor bk Flue t Sensor b Le 8 r Hydraulic Pressure Switch Heating Return Sensor br Heating r Flow gt Igniter Sensor s t i Mains Voltage bn Il Connection b H H bk 2 gly b b Safety 2 Sensing Electrode Mains Input Cable Timer Connector Timer Bridge Key To Wiring Colours b Blue Red bk Black 9 Green br Brown 9 Green Yellow w White y Yellow gr Grey p Purple 18 EcoBlue Plus Combi 7212136 02 08 14 4 Description of the Product Information Label B Flap Fig 1 Data Badge Control Box removed for clarity 7212136 02 08 14 Description of the Product 4 4 1 General Description 1 The Baxi EcoBlue Plus Combi boilers are fully automatic gas fired wall mounted condensing combination boilers They are room sealed and fan assisted and will serve central heating and mains fed domestic hot water 2 The boiler is set to give a maximum output of 24 model 24 KW DHW 21 2 kW CH Condensing 28 model 28 kW DHW 25 3 kW CH Condensing 33 model 33 kW DHW 29 6 kW CH Condensing 3 The boiler is factory set for use on Natural Gas G20 4 The boiler is suitable for use only on fully p
96. ty 60 EcoBlue Plus Combi 10 3 16 Plate Heat Exchanger Fig 62 amp 63 1 Close the flow amp return isolation taps and the cold mains inlet Drain the primary circuit and draw off any residual DHW 2 Refer to Section 10 2 paragraphs 5 to 9 and remove the fan etc Also remove the diverter valve motor and disconnect the pump cable 3 Undo the screws securing the plate heat exchanger to the hydraulic assembly 4 Withdraw the plate heat exchanger by manoeuvring it to the rear of the boiler then upwards and to the left to remove Seals 5 There are four rubber seals between the hydraulic assembly and heat exchanger which may need replacement 6 Ease the seals out of the hydraulic assembly Replace carefully ensuring that the seal is inserted parallel and pushed fully in 7 When fitting the new heat exchanger note that the right hand location stud is offset towards the centre Fig 62 8 in reverse order 10 3 17 Hydraulic Pressure Sensor Fig 63 1 Close the flow and return isolation taps and drain the primary circuit For ease of access remove the fan and collector assembly 2 Remove the plug from the sensor and pull the retaining clip forwards The clip is captive and does not need to be fully removed 3 in reverse order 7212136 02 08 14 Control SS removed for clari
97. ty NEL 7 DHW Flow Sensor Hall Effect Sensor DHW Flow Regulator amp Filter Fig 64 Pump Gas Valve Assemblies and Pipework removed for clarity Securing Clip Electrical Plug Diverter Valve Motor 7212136 02 08 14 Maintenance 10 10 3 18 DHW Flow Regulator amp Filter Fig 64 1 Remove the Fan amp Collector 13 2 Close the cold mains inlet and draw off any residual DHW 2 Pull out the securing clip and prise the regulator and filter assembly out of the hydraulic inlet assembly 3 Twist the body to unlock the bayonet connection and remove the regulator 4 Examine and clean the filter and reassemble in reverse order 10 3 19 DHW Flow Sensor Hall Effect Sensor Fig 65 1 Pull the sensor off the DHW inlet manifold 2 Disconnect the plug from the sensor and connect it to the new component 3 Fit the new sensor ensuring it is correctly oriented and fully engaged over the manifold 10 3 20 Diverter Valve Motor Fig 66 1 Undo the screw securing the electrical plug to the motor unit Disconnect the plug 2 Hold the motor in place against the spring pressure of the valve and remove the securing clip 3 Remove the motor 4 When fitting the new motor it will be necessary to hold the unit firmly while depressing the valve return spring EcoBlue Plus Combi 61 10 62 Maintenance EcoBlue Plus Combi
98. umped sealed heating systems Priority is given to domestic hot water 5 The boiler data badge gives details of the model serial number and Gas Council number and is situated on the boiler lower panel It is visible when the control box is lowered Fig 2 6 The boiler model serial number and Gas Council number are also shown on the information label behind the boiler control flap Fig 1 This is for user reference 7 The boiler is intended to be installed in residential domestic environments on a governed meter supply only 8 The boiler must be installed with one of the purpose designed flues such as one of the standard horizontal telescopic flue kits detailed in the Flue Installation Guide 1 All systems must be thoroughly cleansed flushed and treated with inhibitor see section 5 2 6 gt These Installation amp Servicing Instructions MUST be read in conjunction with the Flue Installation Guide supplied in the Literature Pack EcoBlue Plus Combi 19 4 Description of the Product 19 14 Boiler Schematic Layout Key Pump with Automatic Air Vent Diverter Valve Assembly Valve motor CH System Pressure Gauge Central Heating Filter Domestic Hot Water Filter Domestic Hot Water Priority Sensor Hall Effect Sensor 8 Domestic Hot Water NTC sensor 9 Non return Valve 10 Hydraulic Pressure Sensor 11 Boiler Drain Tap 12 Safety Pressure
99. ver 1 Carefully read and complete all sections of the Benchmark Commissioning Checklist at the rear of this publication that are relevant to the boiler and installation These details will be required in the event of any warranty work 1 The warranty will be invalidated if the Benchmark section is incomplete 2 The publication must be handed to the user for safe keeping and each subsequent regular service visit recorded 3 Hand over the User s Operating Installation and Servicing Instructions giving advice on the necessity of regular servicing 4 For IE it is necessary to complete a Declaration of Conformity to indicate compliance with 1 5 813 An example of this is given in 1 8 813 Domestic Gas Installations This is in addition to the Benchmark Commissioning Checklist EcoBlue Plus Combi 4T 48 Commissioning Information Display The button can that the display shows the following information ipi 06 02 ion io ai 07 igi Hm 7 2 de B iii iro 50 alternates with Sub Code only when fault on boiler or O00 alternates with CH Flow Temperature alternates with Outside Temperature where Sensor fitted alternates with DHW Temperature alternates with DHW Temperature alternates with System Water Pressure alternates with CH Return Temperature alternates with Flue Temperature not used alternates with Zone 1 CH Flow Temperature alternates wit
100. wer control is supplied from the appliance it should be of the thermostatic or pressure balanced type Thermostatic type shower valves provide the best comfort and guard against water at too high a temperature Existing controls may not be suitable refer to the shower valve manufacturer 5 2 8 Expansion Vessel CH only 1 The appliance expansion vessel is pre charged to 1 0 bar Therefore the minimum cold fill pressure is 1 0 bar The vessel is suitable for correct operation for system capacities up to 100 litres For greater system capacities an additional expansion vessel must be fitted For GB refer to BS 7074 Pt 1 For IE the current edition of I S 813 Domestic Gas Installations 2 Checking the charge pressure of the vessel to check the charge accurately ensure the system is cold It is also necessary to relieve the pressure by draining the boiler Using a suitable gauge check the pressure at the valve on the underside of the vessel Adjust the pressure as required and repressurise the system 7212136 02 08 14 The end of the pipe should terminate facing down and towards the wall Fig 4 Pressure Relief Valve Control Box removed for clarity Discharge Pipe Fig 5 Before Installation 5 5 2 9 Safety Pressure Relief Valve 1 5 6798 for full details 1 The pressure relief valve Fig 5 is set at 3 bar therefore all pipewo

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