CR Remeha Avanta 12v Installation And Service Manual Download

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Great Britain

High-efficiency wall-hung boilers

Avanta 12v - 15v - 18v - 24v - 30v

Installation and service manual

120579-130711

Summary of Contents for Avanta 12v

Page 1: ...Great Britain High efficiency wall hung boilers Avanta 12v 15v 18v 24v 30v Installation and service manual 120579 130711 ...

Page 2: ...dance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme Visit www centralheating co uk for more information CONTENTS INTRODUCTION 1 SAFETY 1 1 General safety 1 2 Safety during assembly and installation 1 3 Safety during installation inspection and maintenance 2 INSTALLATION 2 1 Scope of delivery 2 2 Mounting the ...

Page 3: ... outside temperature sensor 2 7 6 Connecting the DHW sensor thermostat 2 7 7 Connecting a three way valve 2 7 8 Connecting a frost thermostat 2 7 9 Connecting an external interlock 2 7 10 Connecting remote alarm and boiler run indication 2 7 11 Connecting a PC PDA 2 8 Connecting an external pump 2 9 Wiring diagram 2 10 Commissioning 2 10 1 Control Panel 2 10 2 Additional guidelines for commissioni...

Page 4: ...tions 7 2 Remeha factory test 7 3 Additional guidelines 8 TECHNICAL SPECIFICATIONS AND WORKING PRINCIPLE 8 1 Technical data 8 2 The boiler components 8 3 Working principle 8 3 1 Regulating 8 3 2 Advanced boiler control abc control 8 3 3 Regulating the water temperature 8 3 4 Low flow water protection 8 3 5 High Limit temperature protection 9 EFFICIENCY DATA AND GAS EFFICIENCY LABELS 9 1 Annual eff...

Page 5: ... correctly The installation commissioning Inspection and servicing of the boiler must be carried out by a competent registered Engineer who holds valid ACS certification and in accordance with current gas safety installation and use regulations the building regulations and all other relevant codes of practice All electrical work must be carried out by a competent Engineer and to be installed in ac...

Page 6: ...ons require an engineer to call on site or if you need more information about specific subjects relating to this boiler or it s installation please do not hesitate to contact our technical help line 0118 974 3070 When contacting Remeha with a problem on the boiler please have available the boiler type Serial No located on the bottom of the casing and the symptoms or fault code the fault code is a ...

Page 7: ...Tip Useful tip or practical advice Indication Important instruction in carrying out a particular operation Warning Possible danger of personal injury or material damage to the regulator building or environment Danger Serious personal injury can occur because of risk of electric shocks 1 2 Safety during assembly and installation Observe the appropriate safety measures as given in these instructions...

Page 8: ...r circumstances not addressed within these instructions please call our After Sales Department 0844 879 7690 Remeha Avanta OV Gas Council numbers PIN 0063BQ3009 Remeha Avanta 12v 41 288 09 Remeha Avanta 15v 41 288 13 Remeha Avanta 18v 41 288 06 Remeha Avanta 24v 41 288 10 Remeha Avanta 30v 41 288 14 Classification type for evacuation of the combustion products according EN 483 see par 8 1 Health a...

Page 9: ... manual Quick reference card and Mounting Template This Installation and Service manual deals with the standard supplied boiler only For the installation or assembly of any optional accessories supplied with the boiler such as stand off frame pipe work kits cover plate control kits etc please refer to the Assembly Instructions supplied with these accessories fig 02 Scope of delivery 59970 LT GB W7...

Page 10: ...front of the boiler is required If this free space is obtained by opening a door or removing a panel the boiler may be installed for instance in a closed cupboard All servicing inspection repairs are made from the front of the boiler For ease of installation we recommend clearances of 0 5 cm at the side so that the unit is easy to open with a free space of 25 cm under the appliance and 25 cm above...

Page 11: ...se the boiler in a cupboard with 25 mm clearances around the casing provided a door is included to allow the front cover to be removed completely for maintenance and allowance is made to access the gas valve and flow return connections page 7 2 2 2 Dimensions and connection points Return connection Ø22 mm Flow connection Ø22 mm ...

Page 12: ...m concentric Condensate drain connection standard overflow pipe size Based on the guidelines and the required installation space determine where to mount the Remeha Avanta In determining the boiler position consider carefully the flue outlet position and any pluming consequences ...

Page 13: ...emeha Avanta Remove template from the box Using the template determine and mark the position of the mounting bracket and flue outlet Drill the Ø8 mm holes Fit the Ø8 mm plugs Core drill the Ø125 mm hole for the flue outlet Fit Ø6 mm screws into the plugs Remove boiler from the box and mount on bracket ...

Page 14: ...tion controls MUST be fitted If the boiler is to be installed in a timber framed building please refer to British Gas publication Guide for Gas Installations in Timber frame Housing reference DM2 Make sure the boiler and any open connections are protected from building dust etc during the installation There must be a 3 amp fused switched spur within 1 m of the boiler Provision must be made for the...

Page 15: ...fig 05 Mounting the Avanta 59970 LT GB W7H 002 page 8 2 3 Water side connections 2 3 1 Water flow ...

Page 16: ...gulate the boiler output to ensure that it remains operational for as long as possible without the need to lock out requiring a manual reset 2 3 2 System Pump The system pump must be wired directly to the boiler terminal strip and be capable of providing the nominal flow at design conditions against the combined resistance of the boiler and system Required water flow at T 15 C and 11 C Type T 15 C...

Page 17: ...The pump should be fitted on the flow pipe from the boiler and have isolating valves each side 2 3 5 Sealed systems If the Avanta is installed on a sealed system an appropriately sized expansion vessel and a safety valve MUST be installed close to the inlet side of the pump A mains filling loop MUST be installed close to the outlet side of the system pump along with automatic air vents positioned ...

Page 18: ...d system 59970 LT GB W7H 004 2 3 6 Additional guidelines for the domestic and CH water Flush the pipes and radiators thoroughly before connecting the boiler to the central heating system in accordance with BS 7593 1992 ...

Page 19: ...ll will reduce the efficiency of the boiler and should be prevented Suitable chemicals and their use should be discussed with a specialist water treatment company prior to carrying out any work environmental aspects health aspects The specification of the system and manufacturers recommendations must be taken into account along with the age and condition of the system New systems should be flushed...

Page 20: ...h Business Technical Park Runcorn Cheshire WA7 4QX Tel No 0800 389 4670 Fax No 0800 389 4677 Email info uk sentinel solutions net Web site www sentinel solutions net page 11 2 3 8 Safety valve discharge A pressure relief safety valve is not needed for Open Vented systems 2 3 9 Draining Provision Drain points must be provided at all the low points of the system to ensure that the entire system can ...

Page 21: ...fig 08 Connecting CH return 59970 LT GB W7H 005 2 3 11 Connecting CH flow Remove the dust cap from the CH flow connection at the top of the boiler Fit the flow pipe to the 22 mm Ø compression fitting ...

Page 22: ...ent one i e push fit system or a tundish immediately below the boiler To prevent the risk of freezing connect the condensate into an internal vertical soil pipe using a tundish air break c w a min 75 mm water seal trap If the condensate pipe has to run externally make sure this is done by realizing the shortest possible route and increase the diameter to at least 1 or insulate it with weather resi...

Page 23: ...g waste trap Fill the boiler siphon with water before operation to prevent flue gasses discharging into the room The condensate drain must be connected in accordance with current regulations fig 10 Connecting condensate drain 59970 LT GB W7H 034 2 4 Gas side connections 2 4 1 Additional guidelines for gas connections ...

Page 24: ...ane Fit restrictor not included with boiler Adjust the fan speed see par 2 10 8 and adjust the gas air ratio see par 2 10 3 page 13 2 4 3 Connecting the gas supply Before starting any work on the gas supply turn off the main isolation valve Remove the dust cap from the gas connection at the bottom of the boiler Connect the gas supply to the 22 mm Øconnection copper tail supplied Make sure there is...

Page 25: ... BS 5440 It should not be necessary to provide compartment ventilation when the boiler is used with a standard concentric flue 2 5 1 Flue terminal positions The flue terminal must be located with care to ensure that the products of combustion are dispersed properly in all weather conditions and cause minimum nuisance to the building user or any adjacent buildings If the terminal is positioned less...

Page 26: ...wever if dynamic pressure below 19 mbar are experienced ensure this is adequate for ALL other gas appliances in the property page 14 fig 12 Flue terminal positions R000150 A Dimensions Terminal location Minimum distance to terminal room sealed A Directly below an opening air brick opening window etc 300 mm B Above an opening air brick opening window etc 300 mm C Horizontally to an opening air bric...

Page 27: ...minal 1200 mm P From an opening in a carport e g door window into the building 1200 mm R From a vertical structure on the roof n a S Above an intersection with the roof 300 mm table 02 Minimum distances to terminal n a not applicable 2 5 2 Room sealed flue See table 03 for the maximum pipe length of flue ducts and air supply pipes for this room sealed application It is not necessary to provide com...

Page 28: ... 5 3 Connecting the flue terminal and air supply Check the depth of the wall and cut the terminal to suit taking note of the cutting instructions supplied with it Core drill a 125 mm Ø hole in the wall fit the rubber closure plate at the exit end and slide the terminal through the wall until the closure plate is clear of the outer edge of the wall pull back the terminal till the closure plate is f...

Page 29: ...ust be installed in accordance with the instructions supplied with them All connections must be airtight waterproof and well supported Horizontal extension sections should slope towards the boiler at least 5 cm per metre ...

Page 30: ...p switch spur unit adjacent to the boiler The switch unit must always be accessible When the switch spur is on the following components of this appliance can be live 230 V electrical connection gas combination block most parts of the control unit ignition transformer X1 X2 X4 X5 X6 and X7 terminal strip 230 V supply cable connection ...

Page 31: ...rol unit is a microprocessor the abc which controls and protects the boiler The maximum rated input of the boiler is 150 W The boiler is fully pre wired internally all external connections can be made using the terminal strips X5 X7 X9 and 230 V input X2 terminal See the diagram for the position of the connectors and fuse F2 on the control unit The most important properties of the control unit are...

Page 32: ... fan 24 VDC table 04 Control unit characteristics Any loads other than those specified above are only allowed if an isolating transformer is used page 17 The output of the Remeha Avanta can be controlled in the following ways 1 On off control volt free switching The boilers internal control will modulate the output to achieve the flow temperature set point of the boiler This contact is on the X9 t...

Page 33: ...ly mounted simple 230 V switching time clock The boiler will provide room compensated heating and time control over CH and DHW System boiler All connections on terminal X1 X2 X4 X5 X6 and X7 are 230 VAC All connections on terminal X9 are low voltage only 2 7 Connecting external controls Release the two screws at the bottom of the front casing release plastic clip below display and remove the front...

Page 34: ...fig 16 Connecting external controls R000158 A page 18 ...

Page 35: ......

Page 36: ...10 Mount the thermostat in a reference room usually the living room Remove existing link and connect the 2 wire 24 V room thermostat to connectors 7 and 8 of the X9 terminal strip If a room thermostat with an anticipation resistor is being used parameter P 5 should be changed from 0 to 1 see par 2 10 8 fig 18 Wiring diagram on off control R000152 B page 19 2 7 2 Connecting a time control using an ...

Page 37: ... a link or room control must be fitted between connectors 7 and 8 of X9 terminal strip remove existing link before use If the 230 V supply for the external time clock is not taken from the boiler terminal block X2 connections 4 5 it must be taken from the same phase as the boiler 230 V supply and correct polarities observed fig 19 Wiring diagram for an external 230 V time clock R000162 A 2 7 3 Con...

Page 38: ...ce room usually the living room Remove existing link and connect the two wire interface cables to connectors 7 and 8 of the X9 terminal strip When using the iSense it is possible to add an outside sensor to provide weather compensation with room adjustment Connect the outside sensor to connectors 1 and 2 on the X9 terminal strip If the DHW water temperature on the OpenTherm control can be adjusted...

Page 39: ...n 0 and 30 C Outside temperature maximum set point 20 C adjustable with parameter P 2 8 to between 0 and 40 C Flow temperature set point at maximum outside temperature 20 C adjustable with parameter P 2 7 to between 0 and 60 C Flow temperature set point at minimum outside temperature 20 C P 1 Adjustable between 20 85 C but the highest water temperature setting for this type of boilers is limited t...

Page 40: ...r thermostat If an external DHW calorifier is being used with the Avanta system boiler a DHW control sensor or volt free thermostat can be connected to connectors 3 and 4 of the X9 terminal strip The control will automatically detect whether a sensor or a thermostat has been connected ...

Page 41: ...nected to heating and port B to hot water X5 3 should be used to enable DHW The cable must be fed through the boiler s casing by means of the supplied cable gland and run trough the cable clamp on the right hand inside of the boiler fig 24 Wiring diagram three way valve R000160 A 2 7 8 Connecting a frost thermostat The boiler must be installed in a frost free area to prevent the condensate drain f...

Page 42: ...cts to close on temperature fall page 22 A frost thermostat should preferably be installed in rooms with a high frost risk Connect the frost thermostat in parallel to the room thermostat connectors 7 and 8 of the X9 terminal strip remove existing link between connectors 7 and 8 before use The integrated boiler protection described above will not provide complete system or fabric protection When a ...

Page 43: ...is open the boiler will shut down with the display showing code 9 and will restart when the circuit is closed fig 26 Wiring diagram for an external interlock R000195 A page 23 2 7 10 Connecting remote alarm and boiler run indication As standard the boiler is supplied with 3 volt free connectors on terminal X7 They can be used for an external gas valve remote alarm and boiler run indication Common ...

Page 44: ... Never connect a pump directly to connectors 1 and 3 on terminal X7 but only via a relay fig 27 Connecting remote alarm R000196 A 2 7 11 Connecting a PC PDA Using the optional Recom interface package a PC or PDA can be connected to the X10 telephone connector Using the Recom PDA service software you can load change and download various boiler settings and readings See the user instructions supplie...

Page 45: ... 1 and X4 2 of the control unit The pump s earth connection must be connected to the control unit s earth connection with an AMP connector supplied with boiler The cable must be fed through the boiler s casing by means of the supplied cable gland and run trough the cable clamp on the right hand inside of the boiler ...

Page 46: ...fig 29 Connecting external pump R000161 A page 24 2 9 Wiring diagram fig 30 Wiring diagram R000163 A page 25 2 10 Commissioning ...

Page 47: ...ormation on the current operating status of the boiler and any errors Numbers dots and or letters can appear in the display If no key is pressed for longer than three minutes with the boiler in stand by mode only one dot is lit With the boiler operating two dots are displayed Factory default Press any key and the current boiler status and operation code will appear in the display In the event of a...

Page 48: ...e supplied warranty leaflet The Avanta boiler has been live test fired on the production line and set up for Natural Gas with an inlet gas pressure of 17 20 mbar whilst operating and should therefore not require any further adjustments The boiler must not be put into operation with a different type of gas without reference to par 2 4 2 At the time of commissioning complete all relevant sections of...

Page 49: ...on and setting the controls 4 Checking setting the gas air ratio at full load 5 Checking setting the gas air ratio at low load 6 Making the boiler ready for use 7 Instructing the user 1 Isolating the power supply and opening the front cover Switch off the boiler at the fused spur and remove the fuse Remove the front panel release the two screws at the bottom of the front panel pull the bottom of t...

Page 50: ...ational Open the valves on all the radiators connected to the central heating system before filling the system with water Open the valves on all the radiators connected to the central heating system Fill the system with water making sure that the feed and expansion tank is full Vent the system ...

Page 51: ... should be filled with clean water if necessary Avoid water getting into the boiler Check the system pump spin the shaft to check that the impellor can move freely Check that all boiler connections are watertight fig 34 Open the valves ...

Page 52: ...let pressure is 37 mbar for propane fig 35 Measurement point c on the gas block 59970LTGBW7H037 Check that the gas supply to the boiler is gas tight in compliance with the current regulations see Chapter 7 the maximum test pressure at the gas pipe inlet with the boiler gas valve open is 60 mbar Vent the gas pipe by unscrewing the measurement point C on the gas block tighten it again as soon as the...

Page 53: ...er on and setting the controls Replace the fuse and switch on the 230 V power supply Set the controls to heat demand When 230v power is first applied to the boiler or after the 230v supply has been isolated for maintenance the boiler will not start until it has fully completed its venting cycle this will take about 3 minutes during which time the display will show F X X alternating with P X X wher...

Page 54: ...wer on and controls on heat demand R000165 A 4 Setting the gas air ratio at full load The Avanta boilers are suitable for both natural gas and propane firing restrictor required for propane not supplied The boilers are supplied as standard set for natural gas G20 therefore the following procedure must be carried out BEFORE the boilers are fired and commissioned for the first time on propane fit re...

Page 55: ...CO2 for natural gas Boiler type Fan speed rpm O2 CO2 Full load H 3 12v approx 2400 5 2 0 1 8 8 0 1 15v approx 3000 5 2 0 1 8 8 0 1 18v approx 3500 5 2 0 1 8 8 0 1 24v approx 4500 5 2 0 1 8 8 0 1 30v approx 5200 5 2 0 1 8 8 0 1 table 05 Setting values full load CO2 and O2 front panel not fitted Setting values O2 CO2 for LPG propane ...

Page 56: ... 05 or table 06 If the values are not in accordance with the table then correct the gas air ratio controls using the adjusting screw A on the gas block If the value is too low turn the screw A anti clockwise this increases the gas rate if the value is too high turn the screw clockwise which decreases the gas rate Check the flame through the sight glass which should be stable with a regular blue di...

Page 57: ... 2000 5 1 0 1 10 3 0 1 15v approx 2000 5 1 0 1 10 3 0 1 18v approx 2000 5 1 0 1 10 3 0 1 24v approx 2000 5 1 0 1 10 3 0 1 30v approx 2000 5 1 0 1 10 3 0 1 table 08 Setting values part load CO2 and O2 front panel not fitted On forced part load the 2nd digit indicates the operating code fig 39 Check the gas air ratio control set to part load gas air ratio adjustment B on gas block 59970LTGBW7H018 ...

Page 58: ... 8 turns when setting O2 CO2 Ensure that the analysing probe has a gas tight seal in the sampling point with the probe end in the centre of the flue duct Repeat the test at full load and test at part load as often as necessary until the correct values are achieved without further adjustments 6 Preparing the boiler for use Remove the analysing probe and replace the cap on the flue gas sampling poin...

Page 59: ...ot be changed without reference to Remeha or one of our approved contractors fig 40 Preparing boiler for use 59970LTGBW7H019 page 31 7 Instructing the user It is the responsibility of the installer as part of the commissioning procedure to instruct the user in the day to day operation of the boiler and controls fitted to the system and to hand over the completed Benchmark Checklist at the back of ...

Page 60: ...c calling for heat The boiler will begin its start sequence The following sequence will appear in the display A display test will briefly appear showing all segments of the display F X X software version P X X parameter version A venting cycle of 3 minutes now follows the version numbers will be displayed alternately Next the following will appear in the display 0 stand by mode 2 10 5 Error during...

Page 61: ...l run first before starting the boiler Checking CH function Ensure the time control is in the CH on position Set the room thermostat on a high demanding temperature and the display shows 1 pre purge stage 2 Ignition stage 3 operating in CH mode Set the room thermostat back to a lower temperature no more heat demand the display shows 5 waiting time 3 to 10 minutes only when flow temperature has alr...

Page 62: ...ress key again until F L appears and e g 6 0 6uA the present ionisation current Press key again until F appears and e g 3 0 3000 rpm the present fan speed Press key again and the read out cycle will start again with t 1 etc Press reset key to return to the display with the current operating status ...

Page 63: ...fig 42 Read out settings LT AL W7H 000 046 ...

Page 64: ...nce card provided and therefore will not be detailed in this Installation and Service manual 2 10 8 Changing the parameters at service level with access code To avoid non authorised adjustments some parameter settings can only be changed once the special access code 1 2 has been entered This code may only be used by qualified installers The following settings can be changed at user and service lev...

Page 65: ...ural gas Do not change 3 24 1 30 1 35 1 45 1 52 1 Maximum fan speed DHW propane Adjustments for Propane firing 24 1 28 1 33 1 43 1 50 1 P 1 9 Minimum fan speed CH and DHW natural gas Do not change 3 13 Minimum fan speed CH and DHW propane Adjustments for propane firing 20 1 page 34 Codes in display Description Setting range and notes where applicable Factory settings 12v 15v 18v 24v 30v P 2 0 Star...

Page 66: ...set point outside temperature min 0 30 C 20 P 2 9 Heat curve set point outside temperature max 40 0 C 15 4 P 3 0 Boiler type Do not change 3 P 3 1 Set point augmentation calorifier 0 20 C 15 5 P d F P d U is shown later Restore factory settings On identification plate d F setting X is shown Change parameter into X will restore the factory settings see par 2 10 10 X On identification plate d U sett...

Page 67: ...d 0 appear alternately in the display Press the key until access code 1 2 is displayed Press the enter key until P 1 appears codes P and 1 are displayed alternately This parameter can now be changed as follows Press the enter key the set value for the maximum flow temperature now appears e g 7 5 75 C Press the or key to change this value for example to 6 5 65 C Press enter key to confirm the value...

Page 68: ...fig 43 Change parameters in service level LT AL W7H 000 047 ...

Page 69: ...rameter can be changed from the stand by status as follows Press the enter key and briefly the reset key until codes C and 0 appear alternately in the display Press the key until access code 1 2 is displayed Press the enter key until P 1 appears codes P and 1 are displayed alternately Press the key to go to parameter 1 7 Press the enter key until P 1 7 appears codes P and 1 7 are displayed alterna...

Page 70: ...fig 44 Change boiler output LT AL W7H 000 048 ...

Page 71: ...fig 45 Fan speed boiler input ratio Avanta 12V 15V and 18V T001103 fig 46 Fan speed boiler input ratio Avanta 24V and 30V T001104 page 37 2 10 10 Restore factory settings ...

Page 72: ...ear alternately 2 Press key X X appears 3 Read boiler identification plate for value of d F press or key to reach this value 4 Press key to confirm d U and Y Y appear alternately 5 Read boiler identification plate for value of d U press or key to reach this value 6 Press key to confirm boiler restarts with original factory settings ...

Page 73: ...ernal frost protection the boiler can also prevent the central heating system from freezing 2 11 2 Boiler without frost protection during longer periods of non use Turn time clock off and allow system to cool down then isolate mains power supply at the fused spur unit Isolate the gas supply at the boiler valve Drain the boiler and central heating system if you will not be using the home for a long...

Page 74: ...d air supply pipes for leaks see par 3 1 1 check and clean if necessary the condensate siphon see par 3 1 2 check the ionisation ignition electrode and change if necessary see par 3 1 3 check the combustion and flame pattern see par 3 1 4 fill in the Benchmark Service Record on the inside back pages of this document fig 48 Annual inspection 59970LTGBW7H022 3 1 1 Checking the flue pipes and air sup...

Page 75: ...fig 49 Checking flue pipes 59970LTGBW7H023 page 39 3 1 2 Checking the condensate siphon Check the condensate siphon Remove any dirt residues and refill with clean water to the mark ...

Page 76: ... between 3 and 4mm the quality of the gasket and condition of the porcelain this should not be cracked inspect and replace if necessary Check the ionisation current after 1 minute on the display code F L see par 2 10 6 If the read out value is lower than 3 or higher than 9µA check cable and connections are sound if OK replace the ignition electrode The ignition cap is fixed on the ignition electro...

Page 77: ...Measure the O2 CO2 percentage and the flue gas temperature at the flue gas sample point Do this as follows heat the water temperature in the boiler to approx 70 C unscrew the top of the flue gas point of measurement measure the O2 CO2 percentage and compare this to the check values in table 10 ...

Page 78: ...ural gas Boiler type Fan speed rpm O2 CO2 Full load H 3 Part load L 3 12v approx 2400 approx 1300 5 2 0 2 8 8 0 3 15v approx 3000 approx 1300 5 2 0 2 8 8 0 3 18v approx 3500 approx 1300 5 2 0 2 8 8 0 3 24v approx 4500 approx 1300 5 2 0 2 8 8 0 3 30v approx 5200 approx 1300 5 2 0 2 8 8 0 3 table 10 Checking values O2 CO2 front panel not fitted Checking values O2 CO2 for LPG propane Fan speed rpm O2...

Page 79: ...n the values in table 09 the boiler combustion is correct However if the readings are outside the given values then adjust the gas air ratio control to the given values see table 05 table 08 in par 2 10 3 If the adjustments cannot achieve the mentioned values the boiler will require a full service please refer to the maintenance instructions in par 3 2 Check the flame via the inspection glass in f...

Page 80: ...hecklist T002020 page 41 3 2 Maintenance To conduct maintenance During regular maintenance inspections the integrity of all combustion circuit seals especially the burner door seal must be checked for potential leaks If ...

Page 81: ...e if deemed necessary for a change following an inspection Isolate power supply at the fused spur before carrying out any work on the boiler 1 Open the boiler Isolate the 230 V supply at the switched spur and remove the fuse Isolate the gas supply at the boiler gas valve Remove the front panel release the two screws at the bottom of the front panel pull the bottom of the panel towards you from the...

Page 82: ...tion electrode Disconnect the earth wire from the electrode mounting plate Release the two screws on the electrode and remove the assembly Inspect clean re gap or replace the electrode if required following inspection see par 3 1 3 Do not over tighten the screws when replacing ...

Page 83: ... Release the ignition transformer mounting plate and remove it completely Disconnect the electrical connection on the gas block Release the union nut from the gas pipe on the inlet to the gas block Disconnect the electrical plug on the back of the fan so it becomes accessible Release the four nuts on the heat exchanger front plate ...

Page 84: ...9970LTGBW7H028 4 Maintenance to the burner Carefully clean the burner with pressured air do not keep the nozzle to close to the surface Visual inspection of the burner for any damages or cracks on the surface If you see any damages than replace the burner Check for any perceptible movement of the burner within the frontplate If required dismantle burner plate and replace the burner mounting gasket...

Page 85: ...he back plate insulation of the heat exchanger with great care and do not let them get wet Visual inspection of the heat exchanger for scale or dirt If you see obvious deposits than clean the heat exchanger carefully Carefully remove any loose dirt with a vacuum cleaner Then brush the coils of the heat exchanger if required a cleaning brush is available as an accessory and remove the loosened part...

Page 86: ...e front of the heat exchanger Check that the packing between the front plate and the heat exchanger has been fitted correctly Switch the boiler back on Check the CO2 O2 percentage see par 2 10 3 point 4 Check the ionisation current by reading the display see par 3 1 3 Check the connections on the gas block on gas leaking Fill in the Benchmark Service Record on the inside back pages of this documen...

Page 87: ...fig 59 Assembling the boiler 59970LTGBW7H031 page 44 4 ERRORS 4 1 General ...

Page 88: ...r look for the cause in the error table below and resolve it Error code Description Possible cause Check solution E 0 Flow or return sensor fault Short circuit in the flow return or boiler temperature sensor Check the wiring and the connections of the sensors visually are the plugs all correctly in position With a multimeter measure the resistance in the wiring and connection Defective or not prop...

Page 89: ...ed correctly Check the wiring between sensors and control unit Pump operating in wrong direction Check wiring from and to control unit Flow and return connections crossed Flow and return connections Deviation in the flow or return temperature sensor Check that the sensors are working take the sensors out and measure the resistance with a multimeter at room temperature 20 25 C the sensor is working...

Page 90: ... outside the boiler There is a flame but no or insufficient ionisation lower than 3 or higher than 9 µA Check the flame is the heart of the flame visible and the flame stable the CO2 adjustment at low and full load that the ignition electrode is correctly earthed visual check of the ignition ionisation electrode look for white oxide film remove with sandpaper or a screwdriver look at the shape are...

Page 91: ...tion fan wiring and connection Fan does not stop Check fan function fan wiring and connection excess chimney draught page 46 Error code Description Possible cause Check solution E 9 No water in the boiler or the pump is not working Insufficient water in central heating system Check the minimum water pressure read off the gauge and check for leaks ie Expansion vessel Refill the central heating syst...

Page 92: ... If this error code still returns after resetting please contact Remeha E 4 4 Parameter check Automation settings Replace d F d U settings see par 2 10 10 If this error code still returns after resetting please contact Remeha E 4 5 Default parameters Automation settings Replace boiler control unit table 12 Error codes When sensors have been taken out be sure to replace them max 40 mm underneath he...

Page 93: ...llowing situation the shut down input between terminals 5 and 6 on X9 has been activated opened The lock out will disappear once the cause has been removed 4 4 Error code memory The Remeha Avanta control unit has an error code memory in which the last 16 errors are stored In addition to the error code E and a number X X The following data is also stored the number of times the error occurred n and...

Page 94: ... Press the or key to go forwards or backwards in the list of errors Press the enter key to take a closer look at the error The display shows the error code as follows first error code E with error number e g 1 2 then status code S t with status number e g 3 burning for central heating then number of time that the error has occurred n and a number e g 3 then the flow temperature when the error occu...

Page 95: ... Press the reset key to stop the cycle the following appears in the display E r and e g the numbers 1 and 8 Press the or key to look at the following error data ...

Page 96: ......

Page 97: ...n error the cause can often be found more quickly if the operating status at the time the error occurred can be retrieved from the error memory page 49 5 SERVICE PARTS SERVICE PARTS 5 1 General If following the annual inspection or maintenance any part of the boiler is found to need replacing use Remeha spare parts only or spare parts and materials recommended by Remeha If any component is to be r...

Page 98: ...table 13 Return form example These details can be found on the boiler type plate the type plate is stuck to the bottom of the boiler page 50 ...

Page 99: ...fig 62 Exploded view Remeha Avanta 59970EVGBW7H010 ...

Page 100: ...03 S62743 Electrode ignition ionisation 2004 S59118 Glass inspection set 2005 S100015 Siphon assembly 2021 S58733 Sensor temperature 2 pcs 2023 S100011 Fan assembly 3001 S58685 Gas combination block 3005 S101057 Control board 4001 S59128 Display print board 4002 S100012 Transformer ignition 4003 S43561 Fuse glass 2 amp slow 10pcs 4006 table 14 Break down parts kit page 52 6 EC DECLARATION ...

Page 101: ...IONS 7 1 EC regulations The boiler meets the requirements of the EC regulations at the following directives 90 396EEC Gas appliances directive 92 42 EEC Efficiency directive 2006 95 EEC Electrical low voltage directive ...

Page 102: ...ould also be observed It applies for all regulations and guidelines mentioned in this Installation and Service manual that any additions or new regulations and guidelines at the time of installation will also apply page 54 8 TECHNICAL SPECIFICATIONS AND WORKING PRINCIPLE 8 1 Technical data Appliance type Remeha Avanta 12v 15v 18v 24v 30v General Gas council number 41 288 09 41 288 13 41 288 06 41 ...

Page 103: ...sion n 1 ppm 30 mg kWh 53 Residual fan duty full load Pa 30 35 40 50 100 CH side Water capacity heat exchanger and piping l 1 8 1 8 1 8 2 0 2 0 Minimum operating water pressure bar 0 1 Maximum operating water pressure PMS bar 3 Water temperature maximum C 98 Operating temperature maximum C 75 Water pressure loss T 11 C mbar 220 330 450 630 970 Electrical Main supply V Hz 230 50 Power consumption W...

Page 104: ...e Remeha Avanta 59970LTGBW7H045 1 2 3 4 5 6 7 8 9 Flue Air inlet connection Flue gas measuring point Heat exchanger Front plate heat exchanger Siphon Control panel Fan Air inlet tube Gas valve multiblock Ignition transformer ...

Page 105: ...this process the so called latent or condensing heat is also transferred to the system water The condensate water so formed is discharged from the heat exchanger via a siphon In normal operation the boiler s flue gas discharge will produce a visible white condensing plume and therefore care should be taken when choosing a location for the terminal page 56 8 3 1 Regulating The Remeha Avanta is a fu...

Page 106: ...the flow set point is exceeded by 5 C the boiler will shut down on a controlled stop code 8 page 57 8 3 4 Low flow water protection The Remeha Avanta has a low water protection based on temperature readings By modulating down as soon as there is a risk of an insufficient water flow the boiler will keep working for as long as possible An insufficient water flow however caused indicated by a flow re...

Page 107: ... 7 in relation to Hi at a load of 30 and a return temperature of 30 C 9 2 Water side efficiency 98 in relation to Hi at full load and an average water temperature of 70 C 80 60 C 94 3 in relation to Hi at full load and an average water temperature of 40 C 50 30 C page 59 ...

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Page 110: ...es 0118 974 3070 Internet www remehaheating co uk Copyright All technical and technological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations 120579 130711 page 64 ...

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CR Remeha Avanta 12v, Installation And Service Manual

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