Summary of Contents for Potterton SIRIUS THREE FS 50
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Installation Manual Floor-standing condensing gas boiler SIRIUS THREE FS 50 SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110...
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Dear Customer, Thank you very much for buying this appliance. Please read through the manual carefully before using the product, and keep it in a safe place for later reference. In order to ensure continued safe and efficient operation we recommend that the product is serviced regularly. Our service and customer service organisation can assist with this.
1 Safety Safety General safety instructions Danger This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
1 Safety Danger of electric shock Before any work, switch off the mains supply to the boiler. Recommendations Important Keep this document close to the place where the appliance is installed. Important Never remove or cover labels and data plates affixed to the boiler.
1 Safety Important Only qualified professionals are permitted to install the boiler, in accordance with prevailing local and national regulations. Important Respect the minimum and maximum water inlet pressure to ensure correct operation of the boiler: refer to the chapter Technical Specifications. Caution The boiler must always be connected to the protective earthing.
1 Safety 1.3.2 Installer's liability The installer is responsible for the installation and initial commissioning of the appliance. The installer must observe the following instructions: Read and follow the instructions given in the manuals provided with the appliance. Install the appliance in compliance with prevailing legislation and standards.
2 About this manual About this manual General This manual is intended for the installer of a SIRIUS THREE FS boiler. Symbols used 2.2.1 Symbols used in the manual This manual uses various danger levels to draw attention to special instructions.
3 Technical specifications Technical specifications Homologations 3.1.1 Directives This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives: Gas Appliances Directive 2009/142/EC (until 20th April 2018) Gas Appliances Regulation (EU) (2016/426) from 21st April 2018 onwards Pressure Equipment Directive 97/23/EC, Article 3, paragraph 3 Electromagnetic Compatibility Directive (2014/30/EU).
3 Technical specifications Technical data Tab.1 General SIRIUS SIRIUS SIRIUS SIRIUS Boiler speed Unit THREE FS THREE FS THREE FS THREE FS Useful heat output at 80/60°C Minimum 11.4 Heating mode Useful heat output at 80/60°C Maximum Heating mode Useful heat output at 50/30 °C Minimum 10.2 12.3...
3 Technical specifications For gas flow rates at 15°C and Boiler speed Unit SIRIUS SIRIUS SIRIUS SIRIUS 1013.25 hPA THREE FS THREE FS THREE FS THREE FS Consumption of natural gas (G25) Minimum m³/h 0.63 0.91 1.19 1.44 Consumption of natural gas (G25) Maximum m³/h 5.69...
(in ohms) Tab.9 Outside sensor Tempera ture (in °C) Resistance 13034 5861 3600 2857 1840 1218 (in ohms) Dimensions and connections Fig.2 Dimensions and connections SIRIUS THREE FS 50 and SIRIUS THREE FS 70 MW-3000001-02 7609493 - v08 - 24072018...
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3 Gas inlet (R1") (1) Adjustable feet Fig.4 Space required by 2 boilers in cascade MW-1000234-1 A SIRIUS THREE FS 50 B SIRIUS THREE FS 90 A SIRIUS THREE FS 70 B SIRIUS THREE FS 110 For more information, see...
3 Technical specifications Electrical diagram Fig.5 Electrical diagram SIRIUS THREE FS 50 and SIRIUS THREE FS 70 MW-3000003-04 Earth POP rivet O Room temperature sensor 3 P Boiler pump modulation (PWM) B Power supply auxiliary circuit 1 1 Flow temperature sensor...
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3 Technical specifications Fig.6 Electrical diagram SIRIUS THREE FS 90 and SIRIUS THREE FS 110 MW-3000004-04 Earth POP rivet P Boiler pump modulation (PWM) 1 Flow temperature sensor B Power supply auxiliary circuit 1 2 Return temperature sensor C Power supply auxiliary circuit 2 3 Hydraulic pressure sensor D Room thermostat 4 Flue gas sensor...
4 Description of the product Description of the product General description SIRIUS THREE FS floor-standing condensing gas boilers have the following characteristics: Low pollutant emissions High efficiency heating Electronic control panel Flue gas discharge by a concentric connection. Perfectly suitable for cascade systems with several boilers. Operating principle 4.2.1 Circulating pump...
4 Description of the product 4.2.5 Settings and safety devices Important The settings and safety devices are only operational if the boiler is powered up. Tab.10 Description of the safety devices Device Description Safety thermostats The safety thermostats suspend the supply of gas to the burner if the water in the pri mary circuit overheats.
4 Description of the product Main components Fig.10 SIRIUS THREE FS 50 and SIRIUS THREE FS 70 MW-1000013-06 1 Control panel 17 Ignition electrode 2 Flue gas measuring point 18 Ionisation probe 3 Flue gas connection 19 Flame inspection window...
4 Description of the product 8 Burner 21 Controller PCB 9 Flue gas fitting 22 Mounting point for a maximum of two AVS 75 10 Automatic air vent modules. A third AVS 75 module can be used by the 11 Return temperature sensor boiler but must be fixed to the wall and powered 12 Safety thermostat externally.
Tab.11 Package references Description Package Maximum number of boilers Low-loss header kit - SIRIUS THREE FS 50 –SIRIUS THREE FS 5142184 Low-loss header kit - 5142185 SIRIUS THREE FS 90 – SIRIUS THREE FS 110 7609493 - v08 - 24072018...
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4 Description of the product Description Package Maximum number of boilers Cascade communication module OCI 345 5140908 1 per boiler (optional) AVS75 extension module with wall-hanging kit 5140909 1 per boiler (optional) Flow and return temperature sensor (QAD 36) 5103867 1 per boiler (optional) Domestic hot water temperature sensor (QAZ 36) 5116346...
5 Before installation Before installation Installation regulations Warning The installer must be registered with Gas Safe and have the correct ACS qualifications. Important Practical guidelines - see the latest version. Installation requirements 5.2.1 Water treatment Domestic hot water circuit If the water is harder than 20°f (1°f = 10 mg of calcium carbonate per litre of water), install a polyphosphate cartridge or an equivalent treatment system, in line with prevailing regulations.
5 Before installation Caution Please ensure the polarities shown on the terminals are followed, i.e live (L), neutral (N) and earth ( 5.2.4 Circulating pump The boiler's water flow rates must be higher than or equal to the specifications in the table below: Tab.13 Water flow rates in the boiler Working flow rate...
5 Before installation Fig.17 Pressure drops for SIRIUS THREE 1 Q flow rate (litres/hour) FS 90 2 H pressure in metres of water column (mWC) 3 Operating water flow rate at nominal heat output = 2510 litres/hour where ∆T = 30°C 4 Operating water flow rate at nominal heat output = 3760 litres/hour where ∆T = 20°C 5 Operating water flow rate at nominal heat output = 5020 litres/hour...
5 Before installation Caution Connect the condensate discharge to the waste water near the boiler. 5.3.1 Ventilation To allow the intake of combustion air, sufficient ventilation must be provided in the boiler room, for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed: BS 5440 Part 1 and Part 2: For boilers with a nominal output of more than 70 kW: Upper and lower...
5 Before installation Important Keep the boiler accessible at all times. Fig.21 Space to be allowed for the boilers MW-1000003-05 Fig.22 Space to be allowed for boilers equipped with a low-loss header kit MW-1000019-03 5.3.3 Data plate Fig.23 Location of the data plate The data plate is located on the back of the boiler.
5 Before installation Caution A second data plate is provided in the instructions bag. The second data plate should be affixed to a visible part of the boiler when installation has been completed. If the boiler is equipped with a low-loss header kit, a position on the side of the boiler is preferable.
5 Before installation Transport Fig.26 Transport precautions Caution >45° Have at least two people standing by. Follow the usual handling techniques and use adequate safety equipment. Handle the appliance with gloves. Transport the pallet carrying the appliance using a pallet truck, a forklift truck or a 4-wheel removals cart.
5 Before installation Fig.29 Removing the struts 7. Remove the four screws holding the struts in place (for SIRIUS THREE FS 90 and SIRIUS THREE FS 110 only). 8. Remove the struts. 9. Level the boiler using the adjustable feet. MW-1000235-1 Connecting diagrams 5.6.1...
5 Before installation 1 Boiler flow 26 DHW load pump 1a Heating flow direct circuit 27 Non-return valve 2 Heating pump 30 Calibrated and sealed safety unit 2a Heating return direct circuit 30e Drain valve 3 4 bar (0.4 MPa) safety valve 31 Independent domestic hot water tank 7 Automatic air vent 33 Domestic hot water temperature sensor...
5 Before installation For more information, see Electrical connection: 1 boiler + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank, page 51 5.6.3 Connection diagram: Boilers in cascade + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank Fig.32 Boilers in cascade + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank MW-3000020-04...
6 Installation Installation General Installation must be carried out in accordance with the prevailing regulations, codes of practice and the recommendations in this manual. Preparation 6.2.1 Accessing the internal boiler components Fig.34 1. Remove the front panel by pulling firmly on the notches provided. MW-1000007-03 Fig.35 2.
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6 Installation Fig.36 3. Disconnect the earth wire. MW-3000122-01 Fig.37 4. Pull the top panel towards you and lift. MW-1000010-05 Fig.38 5. Unclip the panel for the control panel and place it on the notches provided. MW-3000025-01 7609493 - v08 - 24072018...
6 Installation Fig.39 6. Remove the detachable panel if necessary. The disassembly instructions can be found on the detachable panel. MW-3000026-01 Hydraulic connections 6.3.1 Connection of the heating circuit Abide by the mountings shown in the hydraulic diagrams. Caution The heating pipe must be mounted in accordance with the provisions applicable.
6 Installation Fig.41 3. Remove the anti-dust plug on the "heating return" inlet. 4. Connect the "heating circuit return" pipe to the "heating return" inlet on the boiler. Fig.42 5. Mount the filling and drain valves to the boiler's inlet and outlet (valves not provided).
6 Installation Filling pressure in the system lower than or equal to the initial pressure in the expansion vessel. The expansion vessel complies with the BS EN 13831 standard. The size of the expansion vessel complies with the BS 7074 standard, part 1.
EN 1856-1 Standard. If installing discharge and intake pipes not supplied by Potterton, these must be certified for the type of use scheduled and present a maximum pressure drop in line with the values given in the table below.
6.5.2 Coaxial pipes Fig.45 Specifications of the coaxial pipes for SIRIUS THREE FS 50 and SIRIUS THREE FS 70 MW-6000203-1 Fig.46 Specifications of the coaxial pipes for SIRIUS THREE FS 90 and SIRIUS THREE FS 110...
Maximum number of boilers in cascade Diameter 125 mm (200 kW Diameter 160 mm (250 kW Diameter 200 mm (500 kW max) max) max) SIRIUS THREE FS 50 SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110 7609493 - v08 - 24072018...
6 Installation Caution For this type of extraction, each boiler must be fitted with a flue gas valve (non-return valve) Ø 110/110 mm. Caution The calculation of the length of the flue gas pipe must be made by a qualified technician during the system design phase, in accordance with the requirements of the prevailing standards.
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1 metre. For each additional metre of horizontal pipe, subtract 1.2 m from the vertical length L Tab.18 Flue system connection type B for SIRIUS THREE FS 50 and SIRIUS THREE FS 70 Arrangement Configuration Unit SIRIUS...
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Maximum length of the connections Tab.20 Maximum length for configuration C Configuration Unit SIRIUS THREE FS 50 SIRIUS THREE FS SIRIUS THREE FS 90 SIRIUS THREE FS Ø 80 / Ø 125 Ø 80 / Ø 125 Ø 110 / Ø 160 Ø...
Maximum length of the connections Tab.22 Maximum length for configuration C Configuration Unit SIRIUS THREE FS 50 SIRIUS THREE FS SIRIUS THREE FS 90 SIRIUS THREE FS Ø 80 / Ø 125 Ø 80 / Ø 125 Ø 110 / Ø 160 Ø...
6 Installation For more information, see Accessing the internal boiler components, page 36 6.7.4 Wiring the terminal blocks Use a flat-bladed screwdriver less than 3.5 mm in width. Fig.55 Pressing down the spring 1. Press down the spring on the terminal block with a suitable screwdriver.
6 Installation Fig.57 Attaching the wire 3. Release the pressure on the spring. The wire is attached. 4. Check that the wire is attached by pulling it gently upwards. If it comes out of the housing, repeat step 3. 6.7.5 Description of the power supply terminal block Fig.58 Power supply terminal block...
6 Installation Caution All connections are made to the terminal blocks provided for that purpose in the boiler connection box. The output available per outlet is 180 W (1 A, with cos ϕ = 0.8) and the inrush current must be less that 5 A.
6 Installation 6.7.10 Electrical connection: Boilers in cascade + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank Fig.63 Boilers in cascade + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank 1 2 3 AVS75 1 2 3...
6 Installation For more information, see Connection diagram: Boilers in cascade + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank, page 34 Configuring boilers in cascade + 1 direct circuit + 1 underfloor heating circuit + 1 domestic hot water tank, page 66 6.7.11 Connecting boilers in cascade with a OCI 345 module Connect the boilers included in the boiler cascade with OCI 345 modules...
6 Installation Flushing an existing installation 1. Remove any sludge from the installation. 2. Flush the installation. 3. Clean the installation with a universal cleaner to eliminate debris from the system (copper, hemp, flux). 4. Thoroughly flush the installation until the water runs clear and shows no impurities.
7 Commissioning Commissioning General Commissioning the boiler is done for first time use, after a prolonged shutdown (more than 28 days) or after any event that would require complete re-installation of the boiler. Commissioning of the boiler allows the user to review the various settings and checks to be made to start up the boiler in complete safety.
7 Commissioning 3. Open the front panel. 4. Check the gas supply pressure at the pressure outlet on the gas valve unit. 5. Check the tightness of the gas connections made after the gas valve unit in the boiler. 6. Check the tightness of the gas pipe, including any valves, from the non-return valve to the burner.
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7 Commissioning Fan speed according to gas type Tab.25 Fan speed for gas type G20 Parameter Output Unit SIRIUS SIRIUS SIRIUS SIRIUS THREE FS THREE FS 70 THREE FS THREE FS 9524 Required speed LF minimum 1500 1270 1250 1300 9524 Required speed LF minimum 1700...
Insert the sensor into the flue gas measurement point to at least 8 cm for SIRIUS THREE FS 50 and SIRIUS THREE FS 70 . Insert the sensor into the flue gas measurement point to at least 9 cm for SIRIUS THREE FS 90 and SIRIUS THREE FS 110 .
Insert the sensor into the flue gas measurement point to at least 8 cm for SIRIUS THREE FS 50 and SIRIUS THREE FS 70 . Insert the sensor into the flue gas measurement point to at least 9 cm for SIRIUS THREE FS 90 and SIRIUS THREE FS 110 .
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Fig.67 Description of the gas valve for 1 Gas flow rate setting screw SIRIUS THREE FS 50 and SIRIUS The settings screw is screwed down as far as it will go and is then THREE FS 70 unscrewed according to the number of turns given in the above table.
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7 Commissioning Tab.30 Authorised CO ranges for gas type G20 for the models SIRIUS THREE FS 50 – SIRIUS THREE FS 70 – SIRIUS THREE FS 90 Unit at maximum power Authorised CO range at minimum power 7.8 - 8.2 7.9 - 8.3...
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7 Commissioning Unit at maximum power Authorised CO range at minimum power 8.2 - 8.6 8.3 - 8.7 8.4 - 8.8 8.5 - 8.9 8.6 - 9.0 8.7 - 9.1 8.8 - 9.2 (1) The CO value is valid with the front panel mounted. If the front panel is removed (open chamber), the value readout is lower by 0.2%. (2) Nominal value.
7 Commissioning Tab.37 Authorised CO ranges for gas type G31 for the models SIRIUS THREE FS 50 – SIRIUS THREE FS 70 – SIRIUS THREE FS 110 Unit at maximum power Authorised CO range at minimum power 8.8 - 9.2 8.9 - 9.3...
5. Remount the connection pipe to the gas valve. Tab.39 Torque load Reference Model Fastening Venturi end Fastening gas valve end SIRIUS THREE FS 50 Clip G1” nut, torque: 40 N·m SIRIUS THREE FS 70 Nut, Torque: 40 N·m Nut, Torque: 40 N·m SIRIUS THREE FS 90 SIRIUS THREE FS 110 6.
7 Commissioning 2. Set the following parameters on the boiler: Tab.43 Boiler settings Parameter number Parameter Setting 5710 Temps / mode CH1 6020 Function extension module 1 Multifunctional 6046 Function input H2 module 1 Consumer request VK1 10V 6049 Voltage value 1 H2 module 1 6050 Funct value 1 H2 module 1 6051...
8 Operation Operation Use of the control panel 8.1.1 Modifying the user parameters Fig.71 Accessing the User parameters 1. Press the key to access the parameters. MENU Important Press the key to return to the main display. MENU The user parameters can now be accessed. Use the button to 18.
8 Operation Starting up the boiler Fig.74 Putting the boiler into operation 1. Start up the boiler by pressing the ON/OFF switch. 2. Open the gas cock. 3. Press the key to access the shortcuts menu. 4. Select the Standby/operation parameter by turning the button.
9 Settings Settings List of parameters 9.1.1 Shortcuts menu Tab.46 Functions accessible with the shortcut key Parameter Description Adjustment range Standby/operation Boiler standby / start-up Standby : Boiler put on standby. The symbol is displayed. The boiler's operating modes are deactivated. The frost protection function is activated.
9 Settings Information Description Value Minimum outside temperature value memorised °C Outside temp min Important The outside sensor must be connected. Maximum outside temperature value memorised °C Outside temp max Important The outside sensor must be connected. Hot water temp 1 Domestic hot water temperature °C Important...
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9 Settings Parameter number Parameter Description Heating circuit Heating circuit 2 Heating circuit 3 3rd Time OFF End of timer period 3. Default values Reset the timer programming parameters (Yes / No) Tab.51 Menu Time hot water Parameter number Parameter Description Select days Selecting the days or group of days for the timer program.
9 Settings 9.1.4 List of installer parameters Tab.54 Menu Operator section Parameter Parameter Description Factory set number ting Lighting Temporarily Temporarily Permanently Units °C, bar °C, bar °F, PSI Used as Operator unit 1 : The control system unit is installed on the boiler. Room unit 1 : The control system unit is configured as a room tem...
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9 Settings Parameter number Parameter Description Unit Factory set ting Heating Heating Heating circuit 1 circuit 2 circuit 3 1042 1342 Flow temp setpoint The set flow value is applied in room tempera °C room stat ture thermostat mode. ‘ ---‘ the boiler is running in modulation mode.
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9 Settings Parameter Parameter Description Factory setting number 1612 Reduced temp Reduced set point outside release times 35°C setpoint 1620 Release Start-up enabled: Time hot water Time hot water : This setting provides domestic hot water pro duction with a dedicated timer program. Time setting central heating : The release of domestic hot wa...
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9 Settings Tab.59 Menu Configuration Parameter Parameter Description Factory set number ting 5710 Temps / mode CH1 Activation of heating circuit 1: 5715 Temps / mode CH2 Activation of heating circuit 2: 5721 Temps / mode CH3 Activation of heating circuit 3: 5730 Hot water sensor Selection of the domestic hot water sensor:...
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9 Settings Parameter Parameter Description Factory set number ting 5890 Relay output QX1 None heating Circulating pump Q4 : Domestic hot water circulating pump. pump CH1 El imm heater HW K6 Collector pump Q5 : Circulating pump for the solar collector circuit. Cons circuit pump VK1 Q15 : The VK1 consumer circuit pump can be used for an additional consumer boiler.
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9 Settings Parameter Parameter Description Factory set number ting 5931 Sensor input BX2 None : No function on the sensor input. None Hot water sensor B31 : Sensor in the bottom section of the domestic hot water tank. Collector sensor B6 : Solar collector sensor. HW circulation sensor B39 : Circulation / DHW preparation sensor.
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9 Settings Parameter Parameter Description Factory set number ting 5977 Function input H5 None Room Optg mode change CHs+HW : Heating and domestic hot water circuit thermostat changeover mode. Optg mode changeover HW : Domestic hot water circuit changeover mode. Optg mode changeover CHs : The regimes of the heating circuits are switched to parameter mode on line 900-1200-1500.
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9 Settings Parameter Parameter Description Factory set number ting 6020 Function extension None Without module 1 Multifunctional : The functions that can be assigned to the inputs/ outputs. Temps / mode CH1 : Settings corresponding to the operator chapter on "Heating Circuit 1". Temps / mode CH2: Settings corresponding to the operator chapter on "Heating Circuit 2".
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9 Settings Parameter Parameter Description Factory set number ting 6042 Sensor input BX21 without module 2 BX2 sensor inlet 6043 Sensor input BX22 without module 2 BX2 sensor inlet 6044 Sensor input BX21 without module 3 BX2 sensor inlet 6045 Sensor input BX22 without module 3...
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9 Settings Parameter Parameter Description Factory set number ting 6212 Check no. heat Information on the manufacturer source 1 6213 Check no. heat source 2 6215 Check no. storage tank 6217 Check no. heating circuits 6230 Info 1 OEM 6231 Info 2 OEM Tab.60 Menu Error...
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9 Settings Parameter Parameter Description Factory set number ting 7147 Type of venting Venting cycle operating mode: None None Heating circuit continuous Heating circuit cycled Hot water continuous Hot water cycled 7170 Telephone customer service 7231 Refill time current Value displayed week 7232 Refill time to date...
9 Settings Tab.64 Menus Burner control Parameter num Parameter Description 9512 Required speed ignition Ignition speed set point adjustable on the operating interface. 9524 Required speed LF Rotation speed set point at partial load adjustable on the operating interface. 9529 Required speed HF Rotation speed set point at nominal load adjustable on the operating interface.
9 Settings Fig.77 Selecting the Language parameter 4. Confirm the menu selection by pressing the button The language currently used flashes. 5. Modify the parameter by turning the button. 6. Confirm the setting by pressing the button. Important Press the key to return to the main display.
9 Settings Fig.79 Modification of the temperature set 4. Turn the button to modify the temperature set point. point 5. Press the button to confirm. Important Press the key to return to the main display. MENU For more information, see Room temperature CH1 Shortcuts menu, page 70 MENU...
9 Settings 5. Confirm the menu selection by pressing the button The room temperature set point (Reduced mode) flashes. Fig.81 Modification of the temperature set 6. Turn the button to modify the temperature set point. point 7. Press the button to confirm. Important Press the key to return to the main display.
9 Settings Fig.84 Selecting the end date of the 10. Select the End parameter by turning the button. holiday period 11. Confirm the menu selection by pressing the button 12. Select and confirm the end date (day/month) of the holiday period with button.
9 Settings Fig.87 Accessing the parameter Controller 4. Press the button to confirm. stop function 304:Controller stop appears. Controller stop function MENU MW-3000088-EN-02 Fig.88 Modifying the thermal output value 5. Press the button to modify the thermal output value from 0 to 100% by turning the button.
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9 Settings Fig.89 Selecting the menu Programming 4. Select menu 27 Programming lock by turning the button. lock 5. Confirm the menu selection by pressing the button Operator unit Programming lock MENU MW-3000091-EN-02 Fig.90 Confirming the menu selection 6. Select the setting On by turning the button.
9 Settings Fig.92 Confirming the parameterOn 7. Confirm the menu selection by pressing the button 8. Select the setting On by turning the button. 9. Confirm the menu selection by pressing the button The parameters can be modified. Operator unit Programming lock MENU MW-3000096-EN-02...
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9 Settings Pre-setting selected Hours programmed Time setting 1 6:00 to 23:00 Time setting 2 06:00...08:00 – 17:00...23:00 Time setting 3 06:00...08:00 – 11:00...13:00 – 17:00...23:00 For more information, see Changing the operating mode, page 85 Default time ranges Tab.67 Time ranges according to the groups of days selected Program line 514 (heating), 574 (domestic hot water) Groups of days...
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9 Settings Fig.95 Selecting the parameter Select 5. Confirm the parameter selection by pressing the button. days The current selection flashes. 6. Select a weekly interval by turning the button. 7. Confirm the weekly interval selection by pressing the button. Time central heating CH1 Select days Mon - Sun...
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9 Settings Fig.98 Selecting the menu Time central 3. Select the Time central heating CH1 menu by turning the button. heating CH1 Important For heating circuits 2 and 3, select the parameters Time central heating CH2 or Time setting 3/CHP. For the domestic hot water circuit, select the parameter Time hot water.
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9 Settings Fig.101 Selecting the time range start time 9. Confirm the menu selection by pressing the button of parameter 1st Time ON The beginning of the first time range flashes. 10. Select the end of the first time range by turning the button.
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9 Settings For more information, see Changing the operating mode, page 85 Selecting a heating circuit, page 89 Default time ranges, page 92 Copying a time range, page 96 Copying a time range Important It is possible to copy a time range from one day to another. It is not possible to copy a time range from a period of several days.
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9 Settings Fig.107 Selecting the parameter Copy to 11. Select a target day by turning the button. 12. Confirm the menu selection by pressing the button Important Repeat the copy to other days if necessary. Press the key to return to the main screen. MENU Time central heating CH1 Monday...
9 Settings Fig.110 Selecting the parameter Yes 6. Select the parameter Yes by turning the button. 7. Confirm the parameter selection by pressing the button. Important Press the key to return to the main screen. MENU The reset to zero of the timer program is effective. Time central heating CH1 Default values MENU...
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9 Settings For more information, see Information menu, page 70 7609493 - v08 - 24072018...
10 Maintenance 10 Maintenance 10.1 General We recommend having the boiler inspected and serviced at regular intervals. Caution Do not neglect to service the boiler. Contact a qualified professional or take out a maintenance contract for the obligatory annual servicing of the boiler. Failure to service the appliance voids the warranty.
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Fig.114 Removing the connection pipe 7. Remove the pipe connecting the gas valve to the Venturi unit. Reference Model SIRIUS THREE FS 50 SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110 7609493 - v08 - 24072018...
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10 Maintenance Fig.115 Disconnecting the safety thermostat 8. Disconnect the 2 wires from the safety thermostat on the combustion on the combustion chamber door chamber door and the pin under the ignition electrode. and the pin under the ignition electrode Fig.116 Removing the retaining nuts 9.
10 Maintenance Burner description Fig.118 Burner 1 Burner 2 Air/gas collector 3 Insulating surface area 4 Ignition electrode 5 Earth electrode 6 Flame detection electrode 10.2.3 Cleaning the heat exchanger 1. Remove the burner. Fig.119 Cleaning the exchanger 2. Clean the pipes inside the heat exchanger using diluted white vinegar and a nylon brush.
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Distances and tolerances to be observed for the ignition electrode and the ground electrode Distance SIRIUS THREE FS 50 – SIRIUS THREE FS 70 – SIRIUS THREE FS 90 – SIRIUS THREE FS 110 4 mm with a tolerance of +/- 0.5 mm Important Replace the ignition electrode if it is damaged.
6. Put the covers back in place on the boiler. Important For the SIRIUS THREE FS 50 and SIRIUS THREE FS 70 models, put the panel located in front of the burner back in place. 7. Reconnect the earth wire.
10 Maintenance For more information, see Commissioning procedure, page 56 10.2.7 Thermal fuse in the heat exchanger The thermal fuse is located in the rear part of the heat exchanger and is connected in series to the safety thermostat. The function of the thermal fuse is to ensure the protection of the heat exchanger against the danger of overheating if the insulation malfunctions.
Insert the sensor into the flue gas measurement point to at least 8 cm for SIRIUS THREE FS 50 – SIRIUS THREE FS 70 . Insert the sensor into the flue gas measurement point to at least 9 cm for SIRIUS THREE FS 90 –...
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10 Maintenance Fig.127 Checking the air in the intake circuit 7. If necessary, check the return into circulation of any combustion products if using coaxial pipes. The sensor will then be connected to the outlet connected to the combustion air intake circuit. Caution Be sure to correctly replace the plug after taking a measurement.
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Insert the sensor into the flue gas measurement point to at least 8 cm for SIRIUS THREE FS 50 – SIRIUS THREE FS 70 . Insert the sensor into the flue gas measurement point to at least 9 cm for SIRIUS THREE FS 90 –...
10 Maintenance Fig.129 Checking the air in the intake circuit 7. If necessary, check the return into circulation of any combustion products if using coaxial pipes. The sensor will then be connected to the outlet connected to the combustion air intake circuit. Caution Be sure to correctly replace the plug after taking a measurement.
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10 Maintenance Fig.131 Location of the fuse 2. Open the fuse-holder socket with the eyelet. 3. Take out the damaged fuse and replace it with an identical one (4 A). 4. Check the fuse L, proceeding in the same way. 7609493 - v08 - 24072018...
11 Troubleshooting 11 Troubleshooting 11.1 Error codes Fig.132 Error code A Error code B Secondary error code C Description of the error Important Press the key to return to the main display. MENU symbol continues to be displayed on the control panel. If the error is not resolved after one minute, the error code is displayed on the control panel a second time.
11 Troubleshooting Display Description of the error 343:Solar integration missing General parameter setting error on the solar system (if incor porating a solar system). 353:Casc sens B10 missing B10 cascade sensor missing. 372:Limit thermostat CH3 Safety thermostat CH3. 373:Extension module 3 Extension module 3.
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11 Troubleshooting 2. Confirm by pressing the button. The error code disappears after a few seconds. For more information, see Cleaning the heat exchanger, page 103 Standard inspection and maintenance operations, page 100 Removing the burner, page 100 Checking the burner, page 103 Remounting the burner, page 105 Thermal fuse in the heat exchanger, page 106 Check the combustion, page 107...
12 Decommissioning 12 Decommissioning 12.1 Decommissioning procedure Caution Only qualified professionals are authorised to carry out maintenance work on the boiler and the heating system. To switch off the boiler temporarily or permanently, proceed as follows: 1. Switch the boiler off. 2.
13 Disposal/recycling 13 Disposal/recycling 13.1 Disposal and recycling Caution Only qualified professionals are permitted to remove and dispose of the boiler, in accordance with local and national regulations. Fig.133 If you need to remove the boiler, proceed as follows: 1. Switch off the boiler. 2.
14 Appendix 14 Appendix 14.1 EC Declaration of Conformity The unit complies with the standard type described in the EC declaration of conformity. It has been manufactured and commissioned in accordance with European directives. The original declaration of conformity is available from the manufacturer. 7609493 - v08 - 24072018...
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Potterton Commercial Part of Baxi Heating UK Ltd | Innovation House Oaklands Business Centre Oaklands Park | Wokingham RG41 2FD Phone 0345 070 1055 | www.potertoncommercial.co.uk 7609493 - v08 - 24072018 7609493-001-08...
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