Potterton SIRIUS THREE FS 70 Installation Manual
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Potterton SIRIUS THREE FS 70 Installation Manual

Floor-standing condensing gas boiler
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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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Summary of Contents for Potterton SIRIUS THREE FS 70

  • Page 1 Installation Manual Floor-standing condensing gas boiler SIRIUS THREE FS 50 SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110...
  • Page 2 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.

  • Page 3: Table Of Contents

    Contents Contents Safety ................... . 6 General safety instructions .
  • Page 4 Contents 6.2.2 Electrical connection ..............37 6.2.3 Configuration .
  • Page 5 Contents 10 Settings ..................73 10.1 List of parameters .

  • Page 6: Safety

    1 Safety Safety General safety instructions For the installer and end user: 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.
  • Page 7 1 Safety Danger If you smell gas: 1. Do not use a naked flame, do not smoke, do not operate electrical contacts or switches (doorbell, light, motor, lift, etc.). 2. Shut off the gas supply. 3. Open the windows. 4. Locate the probable leak and seal it immediately.

  • Page 8: Recommendations

    1 Safety Recommendations Danger For safety reasons, we recommend fitting smoke and CO detectors and alarms at suitable places in your home. Caution The boiler must always be connected to the protective earthing. Earthing must comply with the prevailing installation standards. Earth the appliance before making any electrical connections.

  • Page 9: Liabilities

    1 Safety Caution The frost protection function only protects the boiler, not the heating system. Caution The frost protection function does not work if the boiler is powered off. Caution The appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions: Avoidance of pumps blocking Frost Protection...

  • Page 10: Installer's Liability

    1 Safety Failure to abide by the instructions on installing and maintaining the appliance. Failure to abide by the instructions on using the appliance. Faulty or insufficient maintenance of the appliance. 1.3.2 Installer's liability The installer is responsible for the installation and initial commissioning of the appliance.

  • Page 11: About This Manual

    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.

  • Page 12: Technical Specifications

    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 Regulation (EU) (2016/426) Pressure Equipment Directive 2014/68/EU Electromagnetic Compatibility Directive (2014/30/EU). Low Voltage Directive (2014/35/EU).

  • Page 13: Technical Data

    3 Technical specifications CE number CE-0085CP0089 NOx class Class 6 Type of flue gas connection – B 13(X) 33(X) 43(X) 53(X) 63(X) 83(X) Technical data Tab.2 General SIRIUS SIRIUS SIRIUS SIRIUS Boiler speed Unit THREE FS THREE FS THREE FS THREE FS Useful heat output at 80/60°C Minimum...

  • Page 14: Other Technical Parameters

    3 Technical specifications Tab.4 Data on the gases and combustion gases 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 Minimum gas pressure (G20) mbar Nominal pressure (G20) mbar Maximum pressure (G20)

  • Page 15: Sensor Specifications

    3 Technical specifications Product name SIRIUS SIRIUS SIRIUS SIRIUS THREE FS THREE FS THREE FS THREE FS Useful heat output at rated heat output 45.0 65.0 85.0 102.0 and high temperature regime Useful heat output at 30% of rated heat 15.0 21.7 28.3...

  • Page 16: Dimensions And Connections

    3 Technical specifications Dimensions and connections Fig.2 Dimensions and connections SIRIUS THREE FS 50 and SIRIUS THREE FS 70 MW-3000001-03 1 Heating circuit return (R1") 4 Condensate discharge (DN18) 2 Heating circuit flow (R1") 5 Flue gas outlet (80/125) 3 Gas inlet (R3/4”) (1) Adjustable feet Fig.3...
  • Page 17 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 Accessories & options, page 26 7609493 - v11 - 18052020...

  • Page 18: Electrical Diagram

    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) A Power supply 230 V 50 Hz 1 Flow temperature sensor...
  • Page 19 3 Technical specifications Fig.6 Electrical diagram SIRIUS THREE FS 90 and SIRIUS THREE FS 110 MW-3000004-04 Earth POP rivet O Room temperature sensor 3 P Boiler pump modulation (PWM) A Power supply 230V 50Hz 1 Flow temperature sensor B Power supply auxiliary circuit 1 2 Return temperature sensor C Power supply auxiliary circuit 2 3 Hydraulic pressure sensor...

  • Page 20: Description Of The Product

    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...

  • Page 21: System In Cascade

    4 Description of the product Fig.8 Functional diagram of a boiler with plate heat exchanger MW-5000803-01 1 Boiler 8 Safety valve 2 Plate heat exchanger kit 9 Modulating circulating pump 3 Plate heat exchanger 10 Non-return valve 4 Air vent 11 Drain valve 5 Drain valve 12 Valve...

  • Page 22: Settings And Safety Devices

    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.11 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.

  • Page 23: Main Components

    4 Description of the product Main components 4.3.1 Main boiler components Fig.10 SIRIUS THREE FS 50 and SIRIUS THREE FS 70 MW-1000013-7 1 Control panel 9 Gas valve 2 Flue gas measuring point 10 Burner 3 Flue gas connection 11 Safety thermostat on the combustion chamber door...

  • Page 24: Main Burner Components

    4 Description of the product 1 Control panel 10 Gas valve 2 Flue gas measuring point 11 Burner 3 Flue gas connection 12 Safety thermostat on the combustion chamber door 4 Flue gas sensor 13 Flue gas fitting 5 Terminal block for the sensors and the remote 14 Automatic air vent control 15 Return temperature sensor...

  • Page 25: Control Panel Description

    4 Description of the product Control panel description 4.4.1 Description of the keys Fig.14 Shortcuts menu key Quick access to the operating modes Menu key MENU 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Selection and confirmation button Rotary button for navigating between menu or parameter screens...

  • Page 26: Standard Delivery

    4 Description of the product Type of information Symbol Description Operating modes Comfort operating mode: comfort room temperature Eco operating mode: reduced room temperature Operating mode: Heating 1 2 3 (1): Zone 1 active 1 2 3 (2): Zone 2 active 1 2 3 1 2 3 (3): Zone 3 active...

  • Page 27: Before Installation

    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.

  • Page 28: Power Supply

    5 Before installation Important To use a different type of gas, contact an approved assistance service. 5.2.3 Power supply Supply voltage 230 V AC / 50 Hz 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...

  • Page 29: Choice Of The Location

    5 Before installation Fig.18 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...

  • Page 30: Ventilation

    5 Before installation Caution Connect the condensate discharge to the waste water near the boiler. Caution France: Abide by the regulatory provisions of the Order of 23 June 1978 and the ATG C 321.4 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: Great Britain...

  • Page 31: Data Plate

    5 Before installation Important Keep the boiler accessible at all times. Fig.21 Space to be allowed for the boilers MW-1000003-06 Fig.22 Space to be allowed for boilers equipped with a low-loss header kit, plate heat exchanger kit or cascade kit MW-1000019-04 5.3.3 Data plate...

  • Page 32: Selecting The Position For The Outside Temperature Sensor (Optional)

    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 hydraulic kit (low-loss header kit, plate heat exchanger kit, cascade kit), a position on the side of the boiler is preferable.

  • Page 33: Transport

    5 Before installation Transport Fig.26 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.

  • Page 34: Connecting Diagrams And Configuration

    6 Connecting diagrams and configuration Connecting diagrams and configuration One boiler + one direct circuit + one domestic hot water tank 6.1.1 Hydraulic connection Fig.29 Boiler + 1 direct circuit + 1 domestic hot water tank MW-3000018-06 1 Boiler flow 27 Non-return valve 1a Heating flow direct circuit 30 Calibrated and sealed safety unit...

  • Page 35: Electrical Connection

    6 Connecting diagrams and configuration 6.1.2 Electrical connection Fig.30 Boiler + 1 direct circuit + 1 domestic hot water tank 1 2 3 MW-3000114-08 2 Direct heating circuit pump 34 Modulating boiler pump (primary pump) 21 Outside temperature sensor 38 Remote control 26 DHW booster pump 167 Boiler control panel 33 Domestic hot water temperature sensor...

  • Page 36: One Boiler + One Underfloor Heating Circuit + One Direct Circuit + One Domestic Hot Water Tank

    6 Connecting diagrams and configuration One boiler + one underfloor heating circuit + one direct circuit + one domestic hot water tank 6.2.1 Hydraulic connection Fig.31 Boiler + 1 underfloor heating circuit + 1 direct circuit + 1 domestic hot water tank MW-3000019-06 1 Boiler flow 34 Modulating boiler pump (primary pump)

  • Page 37: Electrical Connection

    6 Connecting diagrams and configuration 6.2.2 Electrical connection Fig.32 Boiler + 1 underfloor heating circuit + 1 direct circuit + 1 domestic hot water tank AVS75 1 2 3 1 2 3 MW-3000115-08 1a Heating flow sensor 61 Mixed circuit flow temperature sensor 2 Heating pump direct circuit 93 Mixed circuit heating pump 21 Outside temperature sensor...

  • Page 38: Boilers In Cascade + One Underfloor Heating Circuit + One Direct Circuit + One Domestic Hot Water Tank

    6 Connecting diagrams and configuration For more information, see Modifying the installer parameters, page 70 List of installer parameters, page 76 Boilers in cascade + one underfloor heating circuit + one direct circuit + one domestic hot water tank 6.3.1 Hydraulic connection Fig.33 Boilers in cascade + 1 underfloor heating circuit + 1 direct circuit + 1 domestic hot water tank...

  • Page 39: Electrical Connection

    6 Connecting diagrams and configuration 6.3.2 Electrical connection Fig.34 Boilers in cascade + 1 underfloor heating circuit + 1 direct circuit + 1 domestic hot water tank 1 2 3 AVS75 1 2 3 93 44 (OCI345) (OCI345) MW-3000040-08 2 Heating pump direct circuit Other countries: safety device to safeguard against 21 Outside temperature sensor overheating of the underfloor heating, in accordance...

  • Page 40: Connecting Boilers In Cascade With A Oci 345 Module

    6 Connecting diagrams and configuration Important Relay the pumps if the current exceeds 1 A max. per output. 6.3.3 Connecting boilers in cascade with a OCI 345 module Connect the boilers included in the boiler cascade with OCI 345 modules (electronic devices that handle communication through a BUS link).

  • Page 41: Configuration For A Master Boiler And Slave Boilers

    6 Connecting diagrams and configuration 4. Set the following parameters on boiler 2: Tab.18 Settings on boiler 2 (slave boiler) Parameter number Parameter Adjustment required 5710 Temps / mode CH1 6600 Device address 6640 Clock mode Slave without remote setting For more information, see Modifying the installer parameters, page 70 List of installer parameters, page 76...

  • Page 42: Controlling A Boiler In 0-10 V Mode

    6 Connecting diagrams and configuration Controlling a boiler in 0-10 V mode 6.4.1 Electrical connection Fig.36 Boiler in 0–10 V mode AVS75 MW-3000041-06 34 Primary pump 310 AVS75: Option 38 Remote control with or without room temperature sensor Important Relay the pumps if the current exceeds 1 A max. per output. 6.4.2 Configuration of the control system 1.

  • Page 43: Installation

    7 Installation Installation General Installation must be carried out in accordance with the prevailing regulations, codes of practice and the recommendations in this manual. Preparation 7.2.1 Accessing the internal boiler components Fig.37 1. Remove the front panel by pulling firmly on the notches provided. MW-1000007-04 Fig.38 2.
  • Page 44 7 Installation Fig.39 3. Disconnect the earth wire. MW-3000122-02 Fig.40 4. Pull the top panel towards you and lift. MW-1000010-06 Fig.41 5. Unclip the panel for the control panel and place it on the notches provided. MW-3000025-02 7609493 - v11 - 18052020...

  • Page 45: Hydraulic Connections

    7 Installation Fig.42 6. Remove the detachable panel if necessary. The disassembly instructions can be found on the detachable panel. MW-3000026-02 Hydraulic connections 7.3.1 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.

  • Page 46: Connecting The Expansion Vessel

    7 Installation Fig.44 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.45 5. Mount the filling and drain valves to the boiler's inlet and outlet (valves not provided).

  • Page 47: Connecting The Condensate Discharge Pipe

    7 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.

  • Page 48: Air Supply/Flue Gas Outlet Connections

    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.

  • Page 49: Coaxial Pipes

    7.5.2 Coaxial pipes Fig.48 Specifications of the coaxial pipes for SIRIUS THREE FS 50 and SIRIUS THREE FS 70 Fig.49 Specifications of the coaxial pipes for SIRIUS THREE FS 90 and SIRIUS THREE FS 110 This type of pipe is used to discharge exhaust gases and draw in combustion air, whether outside the building or in the flue gas pipes.

  • Page 50: Separate Pipes (Not Provided)

    7 Installation 7.5.3 Separate pipes (not provided) Fig.50 SIRIUS THREE FS 50 and SIRIUS THREE FS 70 505 377 MW-3000125-01 Fig.51 SIRIUS THREE FS 90 and SIRIUS THREE FS 110 354,5 245,5 MW-3000126-01 This type of pipe is used to discharge exhaust gases either to the outside of the building or into the individual flue gas pipes.

  • Page 51: Lengths Of The Air/Flue Gas Pipes

    7 Installation Boiler model Maximum number of boilers in cascade Diameter 125 mm Diameter 160 mm Diameter 200 mm (200 kW max) (250 kW max) (500 kW max) SIRIUS THREE FS 90 SIRIUS THREE FS 110 Caution For this type of extraction, each boiler must be fitted with a flue gas valve (non-return valve) Ø...
  • Page 52 1 metre. For each additional metre of horizontal pipe, subtract 1.2 m from the vertical length L Tab.26 Flue system connection type B for SIRIUS THREE FS 50 and SIRIUS THREE FS 70 Arrangement Configuration Unit SIRIUS...
  • Page 53 7 Installation Fig.55 Maximum length of the connections Tab.28 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...

  • Page 54: Flue Gas System Accessories

    7 Installation Configuration C Important Pipes subject to technical evaluation 14 08–1289. Fig.57 Maximum length of the connections Tab.30 Maximum length for configuration C Configuration Unit SIRIUS THREE FS 50 SIRIUS THREE FS SIRIUS THREE FS 90 SIRIUS THREE FS Ø...

  • Page 55: Wiring The Terminal Blocks

    7 Installation Caution Provide a separate power supply for the pump and a power switch, if necessary. The output available per outlet is 450 W (2 A, with cos ϕ = 0.7) and the inrush current must be less that 16 A. If the load exceeds either of these values, the control must be relayed using a contactor that must in no circumstances be installed in the control panel.

  • Page 56: Description Of The Power Supply Terminal Block

    7 Installation 7.7.4 Description of the power supply terminal block Fig.61 T1 T2 S1 S2 Aux 1-2 230 V MW-1000015-06 1 Power supply 230 V 50 Hz 5 Heating circuit pump – QX1 2 Power supply auxiliary circuit 1 6 Domestic hot water pump – QX3 3 Power supply auxiliary circuit 2 7 Safety contact 4 Room thermostat H5 (230 V)

  • Page 57: Description Of The Sensor Terminal Block

    7 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. If the load exceeds either of these values, the control must be relayed using a contactor that must not be installed in the control panel under any circumstances.

  • Page 58: Filling The Siphon

    7 Installation 1. Clean the installation with a powerful universal cleaner. 2. Flush the installation with at least 3 times the volume of water contained in the central heating system (until the water runs clear and shows no impurities). For more information, see Water treatment, page 27 Flushing an existing installation Before filling the heating installation, it is essential to remove any sludge...

  • Page 59: Commissioning

    8 Commissioning Commissioning General Commissioning the boiler is done for first time use, after a prolonged shut- down (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.

  • Page 60: Checking The Electrical Connections

    8 Commissioning 8.3.2 Checking the electrical connections 1. Check for the presence of the recommended circuit breaker. 2. Check the electrical connection to the mains. 3. Check the connection of the sensors. 4. Check the position of the sensors. Respect the distance of the sensors according to the power.
  • Page 61 8 Commissioning Fan speed according to gas type Tab.32 Fan speed for gas type G20 Parameter Parameter Output Unit SIRIUS SIRIUS SIRIUS SIRIUS number THREE FS THREE FS THREE FS THREE FS 9524 Required speed LF minimum 1500 1270 1250 1300 9524 Required speed LF...

  • Page 62: Setting The Air/Gas Ratio (Maximum Heat Input)

    8 Commissioning 8.4.2 Setting the air/gas ratio (maximum heat input) 1. Access the function 303 Chimney sweep function. The Chimney sweep function parameter appears. 2. Turn the button to select Chimney sweep function. Fonction de ramonage Fonction d’arrêt régulation Régime manuel MENU MW-4000282-FR-01 3.

  • Page 63: Setting The Air/Gas Ratio (Reduced Heat Input)

    Ensure that the opening around the sensor is completely sealed when taking measurements. SIRIUS THREE FS 50 and SIRIUS THREE FS 70 : insert the sensor at least 8 cm into the flue gas measurement point. SIRIUS THREE FS 90 and SIRIUS THREE FS 110 : insert the sensor at least 9 cm into the flue gas measurement point.
  • Page 64 Ensure that the opening around the sensor is completely sealed when taking measurements. SIRIUS THREE FS 50 and SIRIUS THREE FS 70 : Insert the sensor into the flue gas measurement point to at least 8 cm. SIRIUS THREE FS 90 and SIRIUS THREE FS 110 : Insert the sensor into the flue gas measurement point to at least 9 cm.

  • Page 65: Gas Valve Basic Settings

    Gas valve for SIRIUS THREE FS 1 Gas flow rate setting screw 50 , and SIRIUS THREE FS 70 The settings screw is screwed down as far as it will go and is then unscrewed according to the number of turns given in the above table.

  • Page 66: Co 2 Checking And Setting Values

    < 250 < 250 < 250 Tab.37 Authorised CO ranges for G20 type gas for SIRIUS THREE FS 50 , SIRIUS THREE FS 70 and SIRIUS THREE FS Unit at maximum power Authorised CO range at minimum power 7.8 - 8.2 7.9 - 8.3...
  • Page 67 < 250 < 250 < 250 Tab.40 Authorised CO ranges for G25 type gas for SIRIUS THREE FS 50 , SIRIUS THREE FS 70 and SIRIUS THREE FS Unit at maximum power Authorised CO range at minimum power 7.8 - 8.2 7.9 - 8.3...

  • Page 68: Adapting The Boiler To A Different Type Of Gas

    If the front panel is removed (open chamber), the value readout is lower by 0.2 %. (2) Nominal value. Tab.44 Authorised CO ranges for G31 type gas for SIRIUS THREE FS 50 , SIRIUS THREE FS 70 and SIRIUS THREE FS Unit at maximum power Authorised CO range at minimum power 8.8 - 9.2...
  • Page 69 2. Remove the pipe connecting the Venturi to the gas valve. Tab.45 Connection pipe Reference Model SIRIUS THREE FS 50 SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110 Fig.68 Removing the Venturi unit 3. Remove the Venturi unit.

  • Page 70: Operation

    9 Operation Operation Use of the control panel 9.1.1 Modifying the user parameters Fig.69 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 select and modify them.

  • Page 71: Stopping The Boiler

    9 Operation Fig.72 2. Start up the boiler by pressing the ON/OFF switch. 3. Press the key to access the shortcuts menu. 4. Select the Standby/operation parameter by turning the button. 5. Press the button to start up the boiler. symbol disappears.

  • Page 72: Special Functions

    9 Operation Special functions Tab.47 Number and Name of the Description function 301:Manual control The boiler operates in heating mode according to the programmed temperature set point val­ Adjustment range: 25 to 90 °C 303:Chimney sweep function Full load: boiler at its maximum heat output, Part load: reduced heat output, Heating full load: heating function at its maximum heat output.

  • Page 73: 10 Settings

    10 Settings 10 Settings 10.1 List of parameters 10.1.1 Shortcuts menu Tab.48 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.

  • Page 74: List Of User Parameters

    10 Settings Information Description Unit 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...
  • Page 75 10 Settings Tab.53 Time program menu Parameter number Parameter Description Heating circuit Heating circuit 2 Heating circuit 3 Selecting the days or group of days for the timer pro­ Select days gram. Mon-Sun Selecting a default timer program. 1st Time ON Start of timer period 1.

  • Page 76: List Of Installer Parameters

    10 Settings Tab.56 Temps / mode CH1 – Temps / mode CH2 – Temps / mode CH3 menu Parameter number Parameter Description Factory setting Heating Heating Heating cir­ circuit 1 circuit 2 cuit 3 1000 1300 The control unit is installed on the boiler: Off : heating is deactivated.
  • Page 77 10 Settings Parameter Parameter Description Factory set­ number ting 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 perature unit for heating circuit 1. Operator unit Room unit 2 : The control system unit is configured as a room tem­...
  • Page 78 10 Settings Parameter number Parameter Description Unit Factory set­ ting Heating Heating Heating circuit 1 circuit 2 circuit 3 1050 1350 Room influence Influence of the room temperature and the outside temperature on calculating the flow temperature: ---%: Simple regulation in ac­ cordance with outside weather conditions: 1…99%: Regulation in accordance with out­...
  • Page 79 10 Settings Parameter Parameter Description Factory setting number 1620 Release Start-up enabled: Time hot water Time hot water : This setting provides domestic hot water prep­ aration with a dedicated timer program. Time setting central heating : Domestic hot water is released with the same timer program as the heating circuits.
  • Page 80 10 Settings Tab.63 Configuration menu 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:...
  • Page 81 10 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 boiler consumer.
  • Page 82 10 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.
  • Page 83 10 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.
  • Page 84 10 Settings Parameter Parameter Description Factory set­ number ting 6200 Save sensors Records the sensors used in the appliance. 6212 Check no. heat Information on the manufacturer source 1 6213 Check no. heat source 2 6215 Check no. storage tank 6217 Check no.
  • Page 85 10 Settings Parameter Description Factory setting Extension module 1 Extension module 2 Extension module 3 6050 : Funct value 1 6058 : Funct value 1 6066 : Funct value 1 Definition of parameters for collec­ H2 module 1 H2 module 2 H2 module 3 tor specifications 6051 : Voltage value 2...
  • Page 86 10 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...

  • Page 87: Setting The Parameters

    10 Settings Tab.69 Burner control menus 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.

  • Page 88: Changing The Operating Mode

    10 Settings 10.2.3 Changing the operating mode Fig.77 1. Press the key to access the shortcuts menu. 2. Select the parameter Central heating mode CH1 by turning the button. 3. Press the button to confirm. 4. Select the appropriate operating mode. 5.

  • Page 89: Setting The Domestic Hot Water Temperature Set Point

    10 Settings For more information, see Shortcuts menu, page 73 10.2.7 Setting the domestic hot water temperature set point Fig.79 1. Press the key to access the shortcuts menu. 2. Select the parameter Hot water temp setpoint by turning the button.
  • Page 90 10 Settings Fig.81 4. Select the Holiday period to be programmed by turning the button. 5. Confirm by pressing the button. Holiday heating CH1 Preselection Period 1 MENU MW-3000073-EN-02 Fig.82 6. Select the Start parameter by turning the button. 7. Confirm the menu selection by pressing the button 8.

  • Page 91: 10.2.10 Using The Fixed-Speed Boiler

    10 Settings 10.2.10 Using the fixed-speed boiler Using the boiler according to heat input makes it possible to calibrate the gas valve. The heat input corresponds to the speed of the boiler in percentage of the nominal output. Fig.85 1. From the home screen, press the keys simultaneously.

  • Page 92: 10.2.12 Locking/Unlocking Parameter Modification

    10 Settings 10.2.12 Locking/Unlocking parameter modification It is possible to lock all functions associated with the key to prevent MENU unauthorised persons from modifying the parameters. Locking parameter modification 1. Press the key to access the user parameters menu. MENU 2.

  • Page 93: 10.2.13 Timer Programme

    10 Settings Fig.91 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 10.2.13 Timer programme Important...
  • Page 94 10 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 88 Default time ranges Tab.72 Time ranges according to the groups of days selected Program line 514 (heating), 574 (domestic hot water) Groups of days...
  • Page 95 10 Settings Fig.94 5. Confirm the parameter selection by pressing the button. The current selection flashes. 6. Select a weekly interval by turning button. 7. Confirm the weekly interval selection by pressing the button. Time central heating CH1 Select days Mon - Sun MENU MW-3000130-EN-02...
  • Page 96 10 Settings Fig.97 3. Select the Time central heating CH1 menu by turning the button. 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.
  • Page 97 10 Settings Fig.101 12. Select the parameter 1st Time OFF (502, 522, 542 or 562) by turning button. Time central heating CH1 Mon - Sun: 1st Time OFF 22:00 MENU MW-3000136-EN-02 Fig.102 13. Confirm the menu selection by pressing the button.
  • Page 98 10 Settings Fig.103 3. Select the Time central heating CH1 menu by turning the button. 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.
  • Page 99 10 Settings Resetting the timer programs to zero 1. Press the key to access the parameters. MENU Fig.107 2. Select the Time central heating CH1 menu by turning the button. Important For heating circuits 2 and 3, select the parameters Time central heating CH2 or Time setting 3/CHP.

  • Page 100: 10.2.14 Setting A Temporary Heating Flow Temperature

    10 Settings 10.2.14 Setting a temporary heating flow temperature Fig.110 1. From the control panel main screen, turn the button to increase or reduce the temperature value. 2. Confirm the menu selection by pressing the button. Temporary setpoint MENU MW-3000143-EN-02 10.2.15 Heating curves Fig.111 MW-4000351-1...

  • Page 101: Accessing The Information Menu

    10 Settings 1. Set the following parameters on the master boiler: Tab.75 Configuration of the master boiler in a cascade Parameter num­ Parameter Description Setting 3540 Auto source seq ch'over Operating time before the auto­ Number of hours matic change of the master boiler sequence.

  • Page 102: 11 Maintenance

    11 Maintenance 11 Maintenance 11.1 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.

  • Page 103: Removing The Burner

    6. Disconnect the ignition electrode and the flame detection sensor. Fig.115 7. Remove the pipe connecting the gas valve to the Venturi unit. Version Boiler model SIRIUS THREE FS 50 SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110 7609493 - v11 - 18052020...

  • Page 104: Cleaning The Heat Exchanger

    11 Maintenance Fig.116 8. Disconnect the 2 wires from the safety thermostat on the combustion chamber door and the pin under the ignition electrode. Fig.117 9. Remove the nuts holding the burner in place on the heat exchanger. Fig.118 10. Remove the fan, the Venturi and the burner to access the inside of the heat exchanger.

  • Page 105: Checking The Burner

    Flame detection electrode and burner Boiler L1 distance SIRIUS THREE FS 50 7.5 mm / tolerance of +/- 1 mm SIRIUS THREE FS 70 SIRIUS THREE FS 90 SIRIUS THREE FS 110 5 mm / tolerance of +/- 1 mm Important Replace the flame detection electrode if it is damaged.

  • Page 106: Cleaning The Siphon

    1. Remove the burner. 2. Access the siphon. 3. Disconnect the pipe coming from the combustion chamber (SIRIUS THREE FS 50 and SIRIUS THREE FS 70 only). 4. Disconnect the pipe from the flue gas exchanger. 5. Disconnect the condensates discharge pipe.

  • Page 107: Remounting The Burner

    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.

  • Page 108: Replacing The 4 A Fuses On The Electrical Terminal Blocks

    11 Maintenance Fig.126 2. Coaxial pipes: if necessary, check the return into circulation of any combustion products. The sensor will then be connected to the outlet connected to the combustion air intake circuit. For more information, see Using the fixed-speed boiler, page 91 CO2 checking and setting values, page 66 Checking combustion (reduced heat input), page 108 Setting the air/gas ratio (maximum heat input), page 62...
  • Page 109 11 Maintenance Fig.129 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 - v11 - 18052020...

  • Page 110: 12 Troubleshooting

    12 Troubleshooting 12 Troubleshooting 12.1 Error codes Fig.130 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.
  • Page 111 12 Troubleshooting Description of the er­ Display Probable causes Check/Solution 40:Return sensor 1 Check that the return sensor has The return sensor is not correctly been correctly connected to the connected boiler PCB Use a suitable multimeter to check NTC return sensor the resistance (Ω) of the sensor ac­...
  • Page 112 12 Troubleshooting Description of the er­ Display Probable causes Check/Solution 83:BSB short-circuit Communication prob­ Check that the wire connecting the The wire connecting the control unit lem between the boil­ control unit to the boiler has been to the boiler is not connected prop­ er PCB and the con­...
  • Page 113 12 Troubleshooting Description of the er­ Display Probable causes Check/Solution 128 128:Loss of flame in Check that the gas inlet valve is open and that the gas pressure is Flame extinguished. The flame has gone out not too low. Also check that the combustion product discharge and air supply pipes are not blocked 130 130:Flue gas temp...
  • Page 114 12 Troubleshooting Description of the er­ Display Probable causes Check/Solution 321 321:HW outlet The sensor is not correctly connec­ Check that the sensor has been sensor ted to the boiler sensor terminal correctly connected to the boiler block sensor terminal block Domestic hot water Use a suitable multimeter to check sensor damaged.

  • Page 115: Automatic Error Code Clearing

    12 Troubleshooting Important This list is not exhaustive. Other error codes may be displayed. Contact the accredited technical support service. 110:Lockout SLT error The code 110:Lockout SLT is displayed when overheating occurs due to a breach in the insulation: Remove the heat exchanger. Replace the insulation behind the burner bracket.

  • Page 116: Clearing Error Codes

    12 Troubleshooting 12.3 Clearing error codes If the probable cause of an error code is resolved but the error code continues to be displayed, proceed as follows to clear the error code: 1. Press the button. The command Reset? Yes is displayed on the control panel. 2.

  • Page 117: 13 Decommissioning

    13 Decommissioning 13 Decommissioning 13.1 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.

  • Page 118: 14 Disposal/Recycling

    14 Disposal/recycling 14 Disposal/recycling 14.1 Disposal and recycling Caution Only qualified professionals are permitted to remove and dispose of the boiler, in accordance with local and national regulations. Fig.134 If you need to remove the boiler, proceed as follows: 1. Switch off the boiler. 2.
  • Page 119 Original instructions - © 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.
  • Page 120 Potterton Commercial, Brooks House, Coventry Road, Warwick, CV34 4LL | Tel No. for Service 0345 070 1058 Technical 0345 070 1057 | Fax No. for Service 0345 070 1074 Technical 0345 070 1059 | Email: commercial.service@baxiheating.co.uk 7609493 - v11 - 18052020...

This manual is also suitable for:

Sirius three fs 50Sirius three fs 90Sirius three fs 110

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