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United Kingdom

en

Combi 24-28-35 / System 18-24

User Manual

Wall Mounted Gas Condensing Boiler

Baxi MainEco Combi and System

Содержание MainEco Combi 24

Страница 1: ...United Kingdom en Combi 24 28 35 System 18 24 User Manual Wall Mounted Gas Condensing Boiler Baxi MainEco Combi and System ...

Страница 2: ...ing the product and keep it in a safe place for future reference In order to ensure continued safe and efficient operation we recommend that the product is regularly maintained Our Service and After Sales organization can assist with this We hope you will receive many years of satisfactory service ...

Страница 3: ...6 2 Safety instructions and recommendations 7 2 1 Safety instructions 7 2 2 Recommendations 8 2 2 1 Benchmark Commissioning Checklist 8 3 Description 9 3 1 Operating principle 9 3 1 1 Gas air setting 9 3 1 2 Combustion 9 3 1 3 Heating and domestic hot water production 9 3 2 Main parts 10 3 3 Clearances around the boiler 10 3 4 Control system 11 3 4 1 Adjustment 11 02092014 7621607 02 1 ...

Страница 4: ... Draining the installation 17 6 Troubleshooting 18 6 1 Error codes 18 6 2 Incidents and solutions 20 7 Technical specifications 21 7 1 Technical specifications 21 8 Energy savings 22 8 1 Energy saving advice 22 8 2 Room thermostat and settings 22 9 Warranty 23 9 1 General 23 9 2 Warranty terms 23 9 2 1 Warranty registration service repair 23 9 2 2 Benchmark Commissioning Checklist 23 9 2 3 Ways to...

Страница 5: ...02092014 7621607 02 3 ...

Страница 6: ... 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 2 Abbreviations 4 LTH Low temperature heating 4 DHW Domestic hot water 4 HRU Heat Recovery Unit 4 PCU Primary Control Unit Electronic system to control burner function 4 SCU Secondary...

Страница 7: ...aintenance of the appliance 4 Failure to abide by the instructions on installing the appliance 1 3 2 Installer s liability The installer is responsible for the installation and commissioning of the appliance The installer must respect the following instructions 4 Read and follow the instructions given in the manuals provided with the appliance 4 Carry out installation in compliance with the prevai...

Страница 8: ...city is impaired or persons with no experience or knowledge unless they have the benefit through the intermediary of a person responsible for their safety of supervision or prior instructions regarding use of the appliance Care should be taken to ensure that children do not play with the appliance If the mains power lead is damaged it must be replaced by the original manufacturer the manufacturer ...

Страница 9: ...f 2 Open the windows 3 Evacuate the premises 4 Call your fitter WARNING Depending on the settings of the appliance 4 The temperature of the flue gas conduits may exceed 60 C 4 The temperature of the radiators may reach 85 C 4 The temperature of the domestic hot water may reach 65 C CAUTION Do not neglect to service the appliance 4 For completely safe and optimum operation you must have your boiler...

Страница 10: ...t you have signed it to say that you have received a full and clear explanation of its operation The installer is legally required to complete a commissioning checklist as a means of complying with the appropriate Building Regulations England and Wales All installations must be notified by the installer to Local Area Building Control either directly or through a Competent Persons Scheme A Building...

Страница 11: ...ring this condensation process the latent heat or condensing heat is also transferred to the heating water The cooled combustion gases are evacuated via the combustion gas outlet flue The condensation water is evacuated via a condensate trap 3 1 3 Heating and domestic hot water production On combi boilers an integrated plate exchanger heats the domestic water A 3 way valve determines whether the h...

Страница 12: ...ir intake silencer 8 Plate heat exchanger DHW Only for Combi models 9 Connection box 10 Condensate trap 11 Circulation pump 12 3 way valve 13 Primary heat exchanger 14 Expansion vessel 15 Automatic air vent 3 3 Clearances around the boiler 1 Clearance when operating 2 Clearance for maintenance T004783 A 3 5 6 7 9 8 13 12 14 15 11 10 1 2 4 R000698 A 368 5 1000 2 364 200 5 250 554 5 1 3 Description ...

Страница 13: ...ons with signals The signals provide information about the operating condition of the boiler The RESET button lights up green when the boiler is connected to the mains The status signal for the B button can flash in a range of colours and at different frequencies The meaning of these signals can be found in the User instruction card supplied with the boiler See also User instruction card page 25 C...

Страница 14: ...shown by the status signal on the instrument panel The status signal for the B button can flash in a range of colours and at different frequencies The meaning of these signals can be found in the User instruction card supplied with the boiler See also User instruction card page 25 Error codes page 18 4 2 Reading the various current values Boiler status information can be read using a suitable cont...

Страница 15: ...reeze protection does not function if the boiler is switched off 4 The integrated protection system only protects the boiler not the installation 4 Open the valves on all radiators connected to the heating system 4 If the boiler has been placed in a room at risk of frost the condensate drain and condensate trap should preferably be protected against freezing with a frost protection cable When the ...

Страница 16: ...ks 4 Check the water pressure in the installation If the water pressure is lower than 0 8 bar more water should be added If necessary top up the water level in the heating system recommended hydraulic pressure between 1 and 2 bar See chapter Filling the system page 15 4 Carry out a visual check for the presence of any water leaks 4 Open and close the radiator valves several times a year this preve...

Страница 17: ...to the boiler 9 Attach the tube to the filling draw off valve Firmly tighten the nut on the filling tube 10 Open the filling draw off valve on the heating system 11 Open the running water tap 12 Use the pressure gauge to check the water pressure in the heating system 13 Close the water tap when the water pressure reaches 2 bar 14 Close the filling draw off valve on the heating system Leave the tub...

Страница 18: ...lst keeping a rag pressed against the connection 8 Wait until water comes out of the bleed valve and then close the bleed connection CAUTION The water may still be hot 9 Switch on the boiler A vent cycle of a duration of around 3 minutes is carried out automatically 10 After venting check whether the pressure in the installation is still sufficient If the water pressure is lower than 0 8 bar more ...

Страница 19: ...the plug located at the lowest level Place the end of the hose in a discharge sump or in a place where the water discharged from the valve can not do any damage 5 Open the filling draw off valve on the heating system Vent the heating installation WARNING The water may still be hot 6 When no more water comes out of the drainage plug close the drainage valve After draining the concentration of syste...

Страница 20: ... a suitable controller If one of the above mentioned error codes is shown proceed as follows 4 Check the water pressure in the heating system The water pressure is higher than 0 8 bar Degas the installation The water pressure is lower than 0 8 bar Fill the system with clean tap water advised water pressure is between 1 5 and 2 bar 4 Check that the gas valve is fully opened Open the gas valve if it...

Страница 21: ...rvice division heateam is open 4 Monday to Friday 8am 6pm 4 Weekends and Bank Holidays 8 30am 2pm excluding Christmas Day and New Year s Day To ensure the highest level of customer service heateam will text to you your engineer appointment details if you provide a mobile phone number Following your engineer visit we will ask you to rate your level of satisfaction with our service via text message ...

Страница 22: ...setting by using the rotary knob on the control panel or by using a suitable controller The boiler is not working The heating temperature setting is too low Increase the value of parameter p1 using a suitable controller or if a room thermostat is connected increase the temperature No power supply 4 Check that the boiler is switched on 4 Check the fuses and switches The water pressure is too low 0 ...

Страница 23: ...ximum C 110 110 110 110 110 Operating temperature maximum C 90 90 90 90 90 Characteristics of the domestic hot water circuit Specific hot water flow Rate 35 C Rise l min 9 8 11 4 14 3 Flow rate threshold 2 minimum l min 1 2 1 2 1 2 Operating pressure Pmw maximum bar 8 8 8 Electrical characteristics Power supply voltage VAC 230 230 230 230 230 Power consumption Full load maximum W 105 117 145 92 10...

Страница 24: ...rmostat 4 Programmable room temperature thermostat The type of thermostat and its settings have a considerable influence on energy consumption A few tips 4 A modulating thermostat possibly in combination with thermostatic valve radiators saves energy and offers considerable comfort This combination allows you to set the temperature on each flow In the room in which the room thermostat is installed...

Страница 25: ...ill apply For full terms and conditions visit www baxi co uk terms 9 2 2 Benchmark Commissioning Checklist This checklist will be completed by your installer and records whether the boiler has been installed correctly This checklist can be found at the back of the Installation and Service Manual and should be retained over the life of the boiler 9 2 3 Ways to register your warranty If your boiler ...

Страница 26: ...om the date of installation This service must be completed by 4 Your Gas Safe registered installer or 4 Our service division heateam Telephone 0844 871 1525 or 4 Another Gas Safe registered engineer 9 Warranty Baxi MainEco Combi and System 24 28 35 18 24 24 02092014 7621607 02 ...

Страница 27: ...Parameter error Miscellaneous Repair Flashing red signal Sensor error Overheat temperature protection Ignition fault Fan fault Parameter error Miscellaneous Reinitialisation Resetting Chimney sweeping position Intermittent orange signal Part load Full load Central heating heat Full load Hot tap water PC programming mode _________________________________ _________________________________ 1 This fun...

Страница 28: ...10 Appendix Baxi MainEco Combi and System 24 28 35 18 24 26 02092014 7621607 02 ...

Страница 29: ...Baxi MainEco Combi and System 24 28 35 18 24 10 Appendix 02092014 7621607 02 27 ...

Страница 30: ...10 Appendix Baxi MainEco Combi and System 24 28 35 18 24 28 02092014 7621607 02 ...

Страница 31: ...hnological information contained in these technical instructions as well as any drawings and technical de scriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations ...

Страница 32: ...xi Brooks House Coventry Road Warwick CV34 4LL 0844 871 1525 Please note calls may be monitored or recorded For Baxi Customer Support contact us at www baxi co uk e oe All descriptions and illustrations provided in this document 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 l...

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