Riello 20020843 Instructions For The Installer And The Technical Assistance Centre Download Page 13 | Manualshive

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GENERAL

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POSITIONING THE TEMPERATURE SENSORS

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SENSORS INSERTED IN THEIR SOCKETS IN THE BOILER

1 - Return temperature sensor
2 - Thermal module safety thermostat
3 - Thermal module flow sensor
4 - Safety thermostat
5 - Flow sensor
6 - Flue gas probe
7 - Flue gas thermostat

RIGHT SIDE

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LEFT SIDE

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Summary of Contents for 20020843

Page 1: ...INSTRUCTIONS FOR THE INSTALLER AND FOR THE TECHNICAL ASSISTANCE CENTRE ALUMINIUM CONDENSING BOILERS ALU PRO power ...

Page 2: ...nergy related products 2009 125 EC Energy Consumption Labelling Directive 2010 30 EU Low Voltage Directive 2014 35 EU Condensing boilers Standard EN 677 Delegated regulation EU N 813 2013 CONFORMITY MODEL CODE ALU 115 PRO power 20021781 ALU 150 PRO power 20020843 ALU 225 PRO power 20020844 ALU 300 PRO power 20020845 ALU 349 PRO power 20029287 ALU 375 PRO power 20020846 ALU 450 PRO power 20020847 A...

Page 3: ...nd to provide comfort in the home for many years to come This manual provides information that is essential for the proper installation of the appliance Used in conjunction with your own knowledge and expertise it will enable you to install the appliance quickly easily and correctly Please accept our thanks again on your choice of product Riello S p A ...

Page 4: ...ion 28 Installation in older systems and systems requiring modernisation 28 Water in central heating systems 29 Water connections 32 Draining the condensate 37 Condensate neutraliser 38 Gas connection 40 System anti freeze protection 41 Flue gas exhaust and comburent air intake 41 Electrical wiring 42 Connecting the outdoor temperature sensor 45 System filling and emptying 46 Preparing for initial...

Page 5: ...ust be disposed in accordance with the present law BASIC SAFETY RULES GENERAL SAFETY INFORMATION bAfter removing the packaging make sure that everything is there and undamaged if not contact the r Agency that sold you the appliance bThe installation of the ALU PRO power boiler must be carried out by a qualified company that will issue the owner with the installation declaration of conformity on co...

Page 6: ...rature of the flue gases indicates the gases themselves are not being vented correctly Gas pressure switch intervenes if the gas supply pres sure is less than 10 mbar bThe intervention of the safety devices indicates a boiler malfunction which is potentially dangerous therefore immediately contact the r Technical Assistance Centre In any event you may attempt to restart the boiler after a short wa...

Page 7: ...ssure heating T Temperature η Efficiency NOx Class of NOx European Directive 92 42 EEC η N 230 V 50Hz W Pms bar T C Qn min Pn min NOx IP P nom G20 mbar Qn max Pn max Cod kW kW kW kW kW kW kW kW RIELLO S p A Via Ing Pilade Riello 7 37045 Legnago VR ITALY Categoria Categorie Kategorie Combustible Brennstoff Combustibile Brandstof KESSEL GEREGELT FÜR CALDAIA REGOLATA PER CHAUDIERE REGLEE POUR VERWARM...

Page 8: ...16 Cover panel 17 Burner check valve 18 Ignition electrode 19 Flame inspection window 20 Side panel 21 Thermal module safety thermostat 22 Flue gas probe 23 Flue gas box 24 Flue gas analysis outlet 25 Flue gas exhaust 26 Boiler aluminium body 27 Flow sensor 28 Sensor socket Safety thermostat 29 Detection electrode 30 Thermal module flow sensor 31 Flame control boards 32 Board support 33 Fan motor ...

Page 9: ...GENERAL 9 14 33 35 34 25 37 36 38 1 32 31 30 25 26 28 29 22 23 24 5 27 16 17 18 19 21 10 20 RIGHT SIDE view TOP view ...

Page 10: ...odulo 8 Modulo 8 Modulo 7 Modulo 6 Modulo IMPOSTAZIONE MODULO DIP Switch DIP Switch Modulo 1 Diagram of SETTINGS FOR THE THERMAL MODULES DIP Switch DIP Switch Module 1 Module Module Module Module Module ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF Module 2 Module 3 Module 4 Module 5 Module 6 Module 7 Module 8 DO NOT CHANGE MODE SETTING OFF ON ...

Page 11: ...2 1 15 8 23 7 31 6 36 7 39 5 47 4 55 3 63 2 Max flue gas temperature 80 60 C 65 70 Min flue gas temperature 80 60 C 60 65 Mass flue gas flow rate 80 60 min max kg h 30 164 30 164 38 224 63 285 67 336 67 336 73 392 73 457 73 523 Residual head Pa 100 Noise levels at Pn min Pn max dB A 44 62 44 62 5 44 63 44 64 44 64 5 44 65 44 66 44 67 44 68 CO2 max min G20 9 9 CO S A max min mg kWh 42 4 NOx referri...

Page 12: ...hould be checked especially after long periods of not being operat ed since deposits and or residues could impede it from rotating freely b Before loosening or removing the circulator cap protect the electric devices located underneath from any water that might come out a Never operate the pumps without water Select a pump that is compatible with the water resistor of the boiler and the system The...

Page 13: ...7 3 2 5 4 SENSORS INSERTED IN THEIR SOCKETS IN THE BOILER 1 Return temperature sensor 2 Thermal module safety thermostat 3 Thermal module flow sensor 4 Safety thermostat 5 Flow sensor 6 Flue gas probe 7 Flue gas thermostat RIGHT SIDE view LEFT SIDE view ...

Page 14: ...485 X10 1 J19 OT X8 2 J20 OT X8 1 J20 DISP X12 1 12 X2 SCH SCH SEQ 01 X1 3 J2 N 230V X1 2 J2 L1 230V X1 1 J2 massa X5 1 CN1 Hall X5 2 CN1 PWM X5 3 CN1 24V X5 4 CN1 X1 1 12 x2 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 SCH1 FU 0 1 IG Pacqua Pgas a b c d e c d e a b TS MO1 SE SB SM AL TA 0 10 out 0 10 in SR SF H1 H2 PCol COLLEGAMENTI A CURA DELL INSTALLATORE PB ViG TF PWM Alimentazione 230V 50Hz L N PE FL SCH M...

Page 15: ... X3 6 ST2 OT X3 7 ST2 OT X3 8 ST2 SM X4 1 ST1 SM X4 2 ST1 RS485 X4 3 ST1 RS485 X4 4 ST1 massa X5 1 CN1 Hall X5 2 CN1 PWM X5 3 CN1 24V X5 4 CN1 SCH9 M DCV RIV ER8 VG8 Tm TA8 EA8 SM8 TS8 PWM PWM Da 1 a 8 Moduli RS 485 Alimentazione Dei Moduli SM1 8 Flow sensor heating element TS1 8 Safety thermostat heating element ER1 8 Flame detection electrode EA1 8 Ignition electrode Tm TA1 8 Ignition transforme...

Page 16: ...ng temperature or room temperature setpoint 6 Display 7 Button for selecting operating mode A line appears under the symbols s Automatic the boiler functions according to the set program o Continuous continuous mode l Reduced reduced mode b Stand by 8 Information button 9 10 Button for changing parameter value 11 Fuse accessed by slightly turning the control panel 12 13 Buttons for electing parame...

Page 17: ...present n Error C Small numeric display Displays time parameters or error codes displaying combustion module D Heating circuit operating modes s Automatic the boiler functions according to the set program o Continuous the boiler operates at daytime comfort setpoint l Reduced the boiler operates at night time reduced setpoint b Stand by E DHW mode ON or OFF F Current time bar G Indicating 0 10 V de...

Page 18: ... the bar appears under the corresponding mode symbol B1 DHW mode The button w above the display switches the mode on or off C1 Nominal operating mode D1 Time of day E1 Current boiler temperature F1 Flame presence G1 Current time indication H1 Current mode heating I1 Current mode DHW Auto Standby ...

Page 19: ...using the RVS communi cation kit available as an accessory ordered separately 2 Temperature request with 0 10V control The 0 10Vdc input is translated into a temperature set point 0Vdc 1Vdc no request 1Vdc request present with temperature setpoint at the minimum permitted value 10Vdc request present with temperature setpoint at the maximum permitted value The 0 10V regulators are output 0 10V RVS6...

Page 20: ...with two different strategies that can be selected using the parameter C604 Strategy A Simultaneous Ignition Switching off of all modules C604 0 Strategy B independent Simultaneous Ignition Switching off C604 1 The control for managing the output at the flame controls can be adjusted regarding frequency updating with the parameter C607 establishes every how many seconds the command for varying the...

Page 21: ...c passage to management as per strategy A to speed up the implementation of the system rapid implementation 2 With the aim of reducing the number of inactive igni tions you can use the parameter H611 which sets the minimum time that has to pass between a burner s switching off and its restarting Similarly with parameter H610 the minimum time between ignition and switching off is limited start stop...

Page 22: ...0V output modulating pump The 0 10V analogue output available on the boiler is used for a rapid control of the system pump that is managed so as to maintain the boiler delivery return delta at the value set with parameter H605 The signal outputs have the following meaning 0V switching off pump 1V minimum speed 10V maximum speed The modulation field is between 1 V and 10 V but it is possible to lim...

Page 23: ...iv ery temperature within 10 minutes there is a non volatile lockout and the pumps are switched off 5 Pump anti block function If the system pump does not operate for 24h it is started for 10s system pump anti block If the domestic hot water pump does not operate for 24h it is started for 10s domestic hot water pump anti block 6 Module anti freeze protection When the delivery temperature drops bel...

Page 24: ...ility room etc DO NOT REMOVE the protective wooden cage until the boiler is at its place of installation see the Handling section on the next page Remove the wooden crate 1 Remove the polystyrene edge protectors 2 Pull off the protective bag 3 Remove the four fixing brackets 6 1 Wooden crate 2 Edge protectors 3 Protective bag 4 Boiler 5 Pallet 6 Fixing brackets Material supplied in the bag inside ...

Page 25: ...t involved to move the boiler to the place of installation b Make sure that the boiler does not strike rigid surfac es like floors or walls when it is being moved HANDLING WITH A CRANE Pass the slings through the pallet Lift carefully and position the boiler at the place of installation b DO NOT REMOVE the protective wooden crate until the installation place has been reached Once the boiler has re...

Page 26: ...ew the eyebolts supplied into their holes then hook up the lifting belts as shown in the illustration Carefully lift the boiler and position it HANDLING WITH A FORK LIFT Once the fixing brackets have been removed the boiler can be moved also with a forklift using the holes in its base for this purpose 60 cm Forklift forks ...

Page 27: ... 900 mm long and 1 1 4 in diameter or else commonly found transport roll ers can be used b To avoid damaging the appliance the weight should be equally distributed over all the rollers To move the appliance Place the rollers on the floor at a distance of about 500 mm from each other Slide the boiler from the pallet to the rollers and carefully transport it to the installation area ...

Page 28: ...at it has been designed and constructed in compliance with applicable standards It is as straight as possible air tight isolated and not have obstructions or constric tions The smoke flue should have a connection for removing condensate The electrical system has been implemented by qual ified personnel in compliance with the relevant stand ards The output the discharge head and flow direction of t...

Page 29: ... OF THE HEATING SYSTEMS 1 Chemical and physical characteristics The chemical and physical characteristics of water used in central heating systems must conform to the requirements of EN 14868 standard and to the following tables ALUMINIUM BOILERS with furnace power 150 kW Initial filling water Regular service water ph 6 8 7 8 Hardness fH 10 10 Electrical conductivity μs cm 200 Chlorides mg l 25 Su...

Page 30: ...has to be replaced do not refill the entire central heating circuit if the quality of water in it conforms to require ments If the quality of water fails to conform to requirements either recondition the old water or separate the water circuits water in the boiler circuit must conform to requirements 3 Corrosion 3 1 Deposit corrosion Under deposit corrosion is an electrochemical process due to the...

Page 31: ... sized and with the correct pre loading pressure to be regularly checked that the system is always at a pressure higher than that of the atmosphere at any point comprising the pump suction side and under all running conditions all the water sealing and water couplings in the installation are designed to resist pressure towards outside but not for depression that the installation is not made with g...

Page 32: ...r Water fittings have the following specifications ALU 150 375 PRO power ALU 115 PRO power ALU 150 PRO power ALU 225 PRO power ALU 300 PRO power ALU 349 375 PRO power A mm 987 5 987 5 987 5 985 5 985 5 B mm 402 C mm 126 D mm 104 E mm 947 947 947 1337 1337 F mm 1264 1264 1264 1654 1654 G mm 301 301 301 300 300 Ø H mm 150 150 200 250 250 1 System delivery Ø 2 G Ø 2 G Ø 2 G Ø 2 G Ø 2 G 2 System retur...

Page 33: ... ALU 600 PRO power A mm 985 985 982 B mm 404 404 401 C mm 126 126 126 D mm 104 104 104 E mm 1735 1735 1938 F mm 2103 2103 2298 G mm 300 300 300 Ø H mm 300 300 300 1 Delivery System Flange PN10 DN65 Flange PN10 DN65 Flange PN10 DN65 2 System return Flange PN10 DN65 Flange PN10 DN65 Flange PN10 DN65 ...

Page 34: ...tro Radiatori Valvola di non ritorno Circuito caldaia con un gruppo di radiatori Termostato ambiente del tipo on off o a modulazione Typical water system schematics Flow Flow Mixing collector DHW pump Boiler circuit with DHW pump boiler production DHW production and 1 unit of radiators On off or modulating room thermostat Boiler circuit with a unit of radiators On off or modulating room thermostat...

Page 35: ...atori Collettore di miscelazione Circuito caldaia con un gruppo di radiatori Termostato ambiente del tipo on off o a modulazione Typical water system schematics Flow Mixing collector Boiler circuit with a unit of radiators On off or modulating room thermostat Boiler circuit with several radiator units Each radiator unit has its own outdoor sensor command The delivery temperature curve of the boile...

Page 36: ...o Valvola di non ritorno Mandata Mandata Radiatori Radiatori Collettore di miscelazione Circuito radiatore pompa Circuito radiatore pompa Typical water system schematics Outlet Outlet Outlet Filter Mixing collector Plate heat exchanger Radiators Radiators Radiators Radiator circuit pump Radiator circuit pump Radiator circuit pump Boiler circuit with several radiator units Outdoor sensor and prelim...

Page 37: ...is supplied with the appliance and must be mounted during installation b If installed outdoors provide an adequate protection system to prevent the liquid in the siphon freezing Condensate drainage systems must be made in such a way as to prevent the leakage of flue and combustion gases into the environment or the sewer system siphon required of the right size and type to ensure the proper drainag...

Page 38: ...lexible hose not supplied bThe central heating system s condensate drain pit must be located at a lower level than the fitting B on the neutralisation unit N2 Type Qt y granulate Dimensions mm Ø fittings N2 25 kg 400x300x220 1 A B C If it necessary to neutralise the condensate produced in the flue pipe it is recommended that the boiler s and flue pipe s condensate outlet be connected with a T fitt...

Page 39: ...e surface of the neutralisation device during maintenance it is recommended to replace the granulate The inlet fitting A of the N2 neutralisation unit the lower fitting must be connected to the boiler condensate drain using the flexible hose C supplied with the unit This con densate drain hose is specially made to prevent combustion fumes escaping into the atmosphere The outlet fitting B of the ne...

Page 40: ...ower r boiler to the gas supply should be carried out in compliance with current installation regulations NBN D51 003 in Belgium Before carrying out the connection it is necessary to ensure that The boiler is compatible with the type of gas supply The gas supply pipes have been thoroughly cleaned A filter of suitable particle rating should be installed bThe gas supply system should be suitable for...

Page 41: ... the boiler but are supplied by r in separate kits b No special anti frost additives are therefore needed unless the system is to be completely shut down for an extended period of time b If using anti freeze fluids make sure they are not aggressive for steel bIT is mandatory to use stainless steel flue gas vent pipes conforming to EN1856 1 and EN1856 2 bProvide a slope of the flue exhaust pipe of ...

Page 42: ...e diagram on the following page bRefer to the diagram below concerning the path the cables must follow to reach the instrument control panel from the outside of the appliance bPrepare a connection suitable for the electrical protection level of the installation room Passaggio attraverso passacavo Passaggio attraverso il foro predisposto sul pannello frontale Posizionamento su canalina in lamiera P...

Page 43: ...he necessary connections close the control panel reversing the steps followed to open it b If there is a storage cylinder the cylinder probe must be placed following the instructions of the cylinder itself b For information on how to connect up additional kits refer to the instructions provided with the kits themselves Connect only pumps with a maximum energy absorption equal to or less than 1A Ce...

Page 44: ...bited to pass the power supply and room thermostat cables near hot surfaces delivery pipes If contact is possible with parts that have tempera tures above 50 C use a suitable type of cable The manufacturer is not responsible for any damage caused by failure to earth the device and failure to comply with what is indicated in the wiring diagrams SAFETY THERMOSTAT AND FUSE TERMOSTATO DI SICUREZZA pre...

Page 45: ...e the diagram on the previous page Connect the two cable wires to the terminal board with out having to identify the polarities Fully tighten the cable gland nut and close the protec tion box cover b The sensor must be positioned on a smooth section of wall in the case of exposed brickwork or an uneven wall the smoothest possible area must be used b The connection cable between the outdoor tempera...

Page 46: ... cocks 1 are closed before you start loading the system Open the DHW circuit shut off cocks Slowly load until the pressure gauge displays a cold value of between 1 5 and 2 bar Close the devices opened previously The fuel and shut off taps of the heating system are open The pressure of the water circuit when cold is higher than 1 5 bar and the circuit has been fully vented The expansion tanks have ...

Page 47: ...us of the system and the temperature measured by the flow sensor Set the room thermostat to the desired temperature 20 C Press the button Ñ with an outdoor temperature sensor set the room temperature setpoint with no outdoor temperature sensor set the heating circuit setpoint To adjust the setpoint use the keys To exit press the button Ñ The setting will be stored in memory ...

Page 48: ...urer parameter 559 see section Manufacturer level con 559 0 boiler only with heating con 559 1 storage cylinder probe con 559 2 storage cylinder thermostat If an outdoor temperature sensor is installed set install er parameter 532 heating curve slope as instructed in the section Setting operating parameters If any boiler ignition faults or boiler operating errors are detected the display shows the...

Page 49: ...rmostat or the hourly programmer Make sure that all the pumps in the system are free and rotate in the right direction Turn the mains power switch to off and make sure that the boiler shuts down completely If all the conditions are satisfied restart the boiler and carry out an analysis of the combustion products first for each module and then for the entire boiler To do so unscrew the plug 1 and i...

Page 50: ...nected If outside temperature drops below 5 C the pumps are switched on If outside temperature is between 4 and 1 5 C the pumps are switched on for 10 minutes at intervals of 6 hours If outside temperature is above 1 5 C the pumps are switched off If the heating unit is not going to be used for an extended period of time proceed as follows to prepare it for shut down Set the main switch of the con...

Page 51: ...EACH SINGLE THER MAL MODULE Simultaneously press the buttons Ñ and w for more than 2 seconds to enter chimney sweep mode On the top right of the display small digits four lines appear that indicate that the commands sent are valid for all the thermal modules Use the keys and to select the first thermal module the small digits indicate U1 Press the key At this point the selected combustion unit com...

Page 52: ...2 using a TORX40 wrench on the adjust ment screw 3 on the valve Going anti clockwise the CO2 diminishes going clockwise the CO2 increases When the adjustment is completed the parameters should reflect those shown in the table below Press the button i to return to the display of the first thermal module the small digits will indicate U1 Press the button to deactivate the module Values of CO2 for op...

Page 53: ...n operations with all the heating elements working To do this Simultaneously press the buttons Ñ and w for more than 2 seconds to enter the flue cleaning mode On the top right of the display small digits four line appear that indicate that the commands sent are valid for all the heating modules Press the key Once all the combustion units switch on and the fans switch to maximum speed Press the key...

Page 54: ...able below G20 9 0 1 G25 8 9 0 1 G31 9 9 0 1 Values of CO2 for operating at MINIMUM POWER Press the Mode button for more than two seconds to exit the flue cleaning mode Once the calibrations are complete carefully close the plug of the combustion analysis socket bAll the calibration operations should be carried out by the r Technical Assistance Centre ...

Page 55: ...iameter is shown in the table below Put back the gas valve and carry out all the calibration operations described in the section Setting the com bustion parameters on page 51 bAfter installing the kit check the seals on all connec tions made b The pressures to have on the gas network are shown in the table below b Conversions should only be carried out by the r Technical Assistance Centre or by au...

Page 56: ...allare e mettere in servizio l apparecchio Questo apparecchio può essere installato e funzionare solo in locali permanentemente ventilati in conformità alle normative vigenti Laterale DX 068786_1_E4 G20 20 mbar G31 37 mbar 8 Adjusting the gas pressure switch To ensure the boiler operates correctly adjust the mini mum gas pressure switch to a value of at least 5 to 10 mbar below that of the gas sup...

Page 57: ...100 S Pendenza Curva SETTING THE FUNCTIONAL PARAMETERS If an outdoor temperature sensor is connected the controller uses the heating curve to generate the CH flow tempera ture setpoint thus enabling the boiler to maintain a constant room temperature even without the use of an ambient unit The steeper the slope of the heating curve the higher the flow temperature setpoint at low outdoor temperature...

Page 58: ...der accessory after connecting the storage cylinder sensor to the elec trical panel and having set the manufacturer parameter C559 Press the button w To adjust the DHW setpoint use the keys and To exit press one of the w keys The setting will be stored in memory SETTING DOMESTIC HOT WATER PARAMETERS 10 40 35 30 25 20 15 Temperatura Esterna C Temperatura di mandata C 10 5 0 5 10 15 20 0 10 20 25 S ...

Page 59: ...ormation regarding the last module on is displayed 6 Number of modules connected in cascade 7 Number of modules connected not malfunctioning 8 Total output in kW currently delivered by the system 9 Address of the leader module for strategy B 10 Output percentage that will be sent to the modules at the next request from the sequencer 11 Current strategy 0 indicates strategy A 1 indicates strategy B...

Page 60: ...ture sensor faulty E50 Storage cylinder sensor faulty Domestic hot water overtemperature E78 Water pressure switch faulty Pressure switch open E81 Communication error number of modules detected different to the number of modules expected E91 EEPROM error Loading in EEPROM default values E110 Safety temperature exceeded Safety thermostat intervention E111 Limit temperature exceeded E113 Flue gas th...

Page 61: ... code is show in the large digits if it concerns a fault with a SIC712 module the address of that module is shown in the small digits Pressing button idisplays the date and time of the error pressing button it is possible to go to the next page while with the button you return to the previous page To exit the menu for memorised errors keep the Mode button pressed for more than 5 seconds ...

Page 62: ... P5 Date when to change from daylight saving to sum mer time Day Month 1 01 31 12 25 03 P6 Date when to change from daylight saving to sum mer time Day Month 1 01 31 12 25 10 P900 CH scheduling Pre selection day MoSu Mo Tu We Th Fr Sa Su MoFr SaSu P901 CH scheduling Start phase 1 00 00 P902 6 00 P902 CH scheduling End phase 1 P901 P903 22 00 P903 CH scheduling Start phase 2 P902 P903 23 59 P904 CH...

Page 63: ...er vice 0 C 30 C 20 C H511 Temperature for activating anti freeze modules 0 C 10 C 5 C H512 Temperature for deactivating anti freeze modules 5 C 20 C 10 C H532 Weather compensation curve slope 0 5 0 H543 System pump post circulation time in 10sec 0 255 18 H544 Domestic hot water pump post circulation time in 10sec 0 255 18 H556 Activation of system anti freeze protection 0 1 0 H605 Delivery return...

Page 64: ...ion for igniting modules 0 1 0 C607 Period for sending output setpoint to the modules 10s 255s 20s C608 Maximum variation of the output setpoint to be sent to the modules 4 99 6 C609 Threshold for switching on module in strategy B C612 x 2 99 50 C612 Threshold for switching off module in strategy B 1 C609 2 4 C613 Protection activation mode with fuel valve 0 1 0 C616 Delta temperature for the simu...

Page 65: ...ng is working correctly MAINTENANCE Remove the split pin 1 detach the corrugated con densate drain hose and remove the siphon unscrew ing the two screw caps 2 Remove the float 3 and clean all the components Once the cleaning operations are finished reassemble all the components following the above instructions in the reverse order 2 2 3 1 CLEANING THE CONDENSATE DRAIN AND SIPHON Code Description M...

Page 66: ...ing the gas feed pipe from the gas collector Unscrew the four nuts 2 securing the burner to the flue gas chamber closure and remove it taking care not to damage the seal Reverse the above steps to fit the new tube b WARNING removing the CHECK VALVE can only be done by pulling it down after re moving the top aluminium closure of the heating element 1 2 ...

Page 67: ...that they are positioned correctly as shown in the diagram Replace if damaged or worn b It is obligatory to respect the dimensions shown in the figure POSITIONING ELECTRODES Elettrodo d accensione sezione laterale Sonda di rivelazione 65 9 59 4 0 Elettrodo d accensione Sonda di rivelazione Flame detection sensor side section Flame detection sensor Ignition electrode Ignition electrode ...

Page 68: ...e The burner shuts down during pre ventilation The valve group feeds too little gas Gas valve faulty Irregular ignition or no electric ignition arc Check gas supply pressure Call the Technical Assistance Centre Call the Technical Assistance Centre Air in the gas pipe Bleed the gas line The burner shuts down after pre ventilation because the flame fails to ignite No electrical power Check for volta...

Page 69: ... in communication Check the connection cables between the bus and the main board and the board of the mod ules Check the modules have been assigned correctly Dip switch Check in 800 that the number of modules present is correct No communication between the modules Fumes escaping into the air Check that the burner body is clean Check that the flue pipes are clean Check the condition of the gener at...

Page 70: ...TECHNICAL ASSISTANCE CENTRE 70 ...

Page 71: ......

Page 72: ...Tel 0442630111 Fax 0442630371 www riello it As part of the company s ongoing commitment to perfecting its range of products the appearance dimensions technical data equipment and accessories may be subject to variation Cod 20125662 ...

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