Baxi POWER HT+ Series Installation, User And Service Manual
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Baxi POWER HT+ Series Installation, User And Service Manual

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Installation, User and Service Manual
POWER HT+ 1.130
POWER HT+ 1.150
POWER HT+ 1.200
POWER HT+ 1.250

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Summary of Contents for Baxi POWER HT+ Series

  • Page 1 Installation, User and Service Manual POWER HT+ 1.130 POWER HT+ 1.150 POWER HT+ 1.200 POWER HT+ 1.250...
  • 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 Connecting diagrams ................45 Installation .
  • Page 5 Contents 10.2 Setting the parameters ............... . . 91 10.2.1 Setting the date and time .

  • 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 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. Labels and data plates must be legible throughout the entire lifetime of the boiler. Immediately replace damaged or illegible instructions and warning labels.

  • Page 9: Liabilities

    1 Safety 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. For the type and calibre of the protective equipment, refer to the chapter Electrical Connections in the Installation and Service Manual.

  • Page 10: User's Liability

    1 Safety Read and follow the instructions given in the manuals provided with the appliance. Install the appliance in compliance with prevailing legislation and standards. Carry out initial commissioning and any checks necessary. Explain the installation to the user. If maintenance is necessary, warn the user of the obligation to check the appliance and keep it in good working order.

  • Page 11: Symbols Used

    2 Symbols used Symbols used Symbols used in the manual This manual uses various danger levels to draw attention to special instructions. We do this to improve user safety, to prevent problems and to guarantee correct operation of the appliance. Danger Risk of dangerous situations that may result in serious personal injury.

  • 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 0085CP0089 NOx class Class 6 Gas and pressures Natural gas (G20) - 20 mbar Natural gas (G25) - 25 mbar Natural gas (G25.1) - 25 mbar Natural gas (G27) - 20 mbar Propane (G31) - 37/50 mbar Tab.1 Type of flue gas connection Boiler model...
  • Page 14 3 Technical specifications Tab.3 Characteristics of the heating circuit POWER HT+ POWER HT+ POWER HT+ POWER HT+ Unit 1.130 1.150 1.200 1.250 Water content (excluding expansion vessel) litre Minimum operating pressure MPa (bar) 0.05 (0.5) 0.05 (0.5) 0.05 (0.5) 0.05 (0.5) Maximum operating pressure (PMS) MPa (bar) 0.6 (6)

  • Page 15: Other Technical Parameters

    3 Technical specifications Tab.6 Other specifications Unit POWER HT+ POWER HT+ POWER HT+ POWER HT+ 1.130 1.150 1.200 1.250 Ingress protection rating IPX1B IPX1B IPX1B IPX1B Weight empty 3.2.1 Other technical parameters Tab.7 Technical parameters for boiler space heaters Product name POWER HT POWER HT POWER HT...

  • Page 16: Dimensions And Connections

    3 Technical specifications Tab.9 Flue gas sensor Temperature (in °C) Resistance (in ohms) 1 755765 117521 67650 10569 1377 Tab.10 Outside sensor Temperature (in °C) Resistance (in ohms) 13034 5861 3600 2857 1840 1218 Dimensions and connections 3.3.1 POWER HT+ 1.130 and POWER HT+ 1.150 Fig.2 MENU 78.5...

  • Page 17: Power Ht+ 1.200 And Power Ht+ 1.250

    3 Technical specifications 3.3.2 POWER HT+ 1.200 and POWER HT+ 1.250 Fig.3 1410 98.5 MENU MW-5000717-3 1104 38.5 98.5 1 Combustion air inlet (150 mm) 5 Condensate discharge (diameter 32 mm) 2 Flue gas outlet (150 mm) 6 Heating circuit return (R2” or DN50 PN6 flange) 3 Heating circuit flow (R2”...

  • Page 18: Power Ht+ 1.200 And Power Ht+ 1.250

    3 Technical specifications D Room thermostat 2 Return temperature sensor E Heating circuit pump 3 Hydraulic pressure sensor F Domestic hot water pump 4 Flue gas sensor G Safety contact 5 Control panel display H Boiler pump 6 Ionisation probe I Auxiliary sensor 1 7 Spark plug J Auxiliary sensor 2...

  • Page 19: Description Of The Product

    4 Description of the product Description of the product General description POWER HT + floor-standing condensing gas boilers have the following characteristics: Low pollutant emissions High efficiency heating Electronic control panel Flue gas discharge by a forced flue, chimney or bi-flow type connection. Perfectly suitable for cascade systems with several boilers.

  • Page 20: Low-Loss Header (Accessory)

    4 Description of the product 4.2.3 Low-loss header (accessory) Fig.6 1 Low-loss header kit Low-loss headers are available for all boiler outputs. The low-loss header is a component which enables the primary circuit and secondary circuit to have a hydraulic system independent from the boiler installation.

  • Page 21: Plate Heat Exchanger (Accessories)

    4 Description of the product 4.2.4 Plate heat exchanger (accessories) Fig.8 The main advantage of the plate heat exchanger is that it hydraulically isolates the primary and secondary circuits. It also enables the boiler body to be protected from any contamination found in the secondary heating circuit water.

  • Page 22: System In Cascade

    4 Description of the product 4.2.5 System in cascade Fig.10 MW-5000719-3 The boiler is ideally suited for a cascade system configuration. Use a boiler/cascade connection kit to connect boilers in cascade. 4.2.6 Settings and safety devices Important The settings and safety devices are only operational if the boiler is powered up.

  • Page 23: Main Components

    4 Description of the product Device Description Frost protection device When the flow temperature is lower than 5 °C, the burner starts up and runs until the flow temperature reaches 15 °C. This device runs under the following conditions: The boiler is switched on The gas supply is working The pressure in the system is higher than 0.5 bar (0.05 MPa) Anti-blocking of the pump...

  • Page 24: Power Ht+ 1.200 And Power Ht+ 1.250

    4 Description of the product 4.3.2 POWER HT+ 1.200 and POWER HT+ 1.250 Fig.12 MW-5000721-3 1 Control panel 10 Gas valve 2 Flue gas connection 11 Ionisation probe 3 Flue gas measuring point 12 Burner 4 Controller PCB 13 Ignition electrode 5 Mounting point for a maximum of two AVS 75 14 Flame inspection window modules.

  • Page 25: Main Burner Components

    4 Description of the product 4.3.3 Main burner components Fig.13 Burner for POWER HT+ 1.130 and 1 Burner door POWER HT+ 1.150 2 Safety thermostat on the combustion chamber door 3 Burner 4 Flame inspection window 5 Ignition electrode 6 Air/gas inlet pipe 7 Gas valve 8 Ionisation probe 9 Fan...

  • Page 26: Description Of The Symbols

    4 Description of the product 4.4.2 Description of the symbols Fig.16 1 Date: day, month, year 2 Day of the week 3 Boiler / heating circuit pressure 4 Clock: hours and minutes 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5 Operating period indicators in Comfort/Eco mode over 24 hours: Top line: Heating mode Bottom line: Domestic hot water mode...

  • Page 27: Standard Delivery

    4 Description of the product Standard delivery The POWER HT + boiler comes in a package that includes: A floor-standing gas boiler An installation, user and maintenance manual A data plate. Accessories & options A detailed list of accessories and options can be found in our catalogue. 7702630 - v02 - 11082018 POWER HT +...

  • Page 28: Before Installation

    (1) For installations with constant heating and a maximum total system output of 200 kW, the appropriate maximum total water hardness is 8.4°dH (1.5 mmol/l, 15°f). For installations of more than 200 kW, the appropriate maximum total hardness is 2.8°dH (0.5 mmol/l, 5°f). Important If water treatment is necessary, Baxi recommends the following manufacturers: Sotin...

  • Page 29: Electrical Power Supply

    5 Before installation The boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases: G25 (gas L), G25.1 (gas S), G27 (gas Lw), G31 (gas P), Important To use a different type of gas, contact an approved assistance service.

  • Page 30: Choice Of The Location

    5 Before installation Fig.18 Pressure drops for POWER HT+ 1 Q flow rate (litres/hour) 1.150 2 H pressure in millibar (mbar) 3 Operating water flow rate at nominal heat output = 4310 litres/hour where ∆T = 30 °C 1600 4 Operating water flow rate at nominal heat output = 6460 litres/hour 1400 where ∆T = 20 °C 1200...

  • Page 31: Ventilation

    5 Before installation Caution Install the thermodynamic water heater in a frost-free environment. Caution Install the boiler on a solid, stable structure able to bear its weight. Caution Do not stock chloride or fluoride compounds close to the boiler. They are particularly corrosive and may contaminate the combustion air.
  • Page 32 5 Before installation Important Keep the boiler accessible at all times. Clearance to be provided for the boilers Fig.22 MW-4000216-02 Tab.14 Boiler model POWER HT+ 1.130 1100 1000 POWER HT+ 1.150 1100 1000 POWER HT+ 1.200 1100 1000 POWER HT+ 1.250 1100 1000 Clearance to be provided for boilers equipped with a low-loss header kit,...

  • Page 33: Data Plate

    5 Before installation Boiler model POWER HT+ 1.200 1100 1000 POWER HT+ 1.250 1100 1000 5.3.3 Data plate Fig.24 The data plate is located on the back of the boiler. The data plate provides important information regarding the appliance: Serial number Model Gas category etc.

  • Page 34: Transport And Unpacking

    5 Before installation Fig.26 MW-3000014-2 Transport and unpacking 5.4.1 POWER HT+ 1.130 and POWER HT+ 1.150 Transport Fig.27 Caution Have at least two people standing by. >20° 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 35 5 Before installation Fig.29 2. Remove the front panel by pulling firmly on the slots provided. MW-2000776-2 Fig.30 3. Lift and tilt the control panel. MW-2000777-1 Fig.31 4. Disconnect the earth wire. MW-2000778-1 Fig.32 5. Pull and lift the top panel. MW-2000779-1 7702630 - v02 - 11082018 POWER HT +...
  • Page 36 5 Before installation Fig.33 6. Screw the lifting rings into the locations provided. Tightening torque: 23 N.m. Important The rings are supplied with the boiler. 7. Remove the screws attaching the boiler to the pallet. MW-2000780-1 Fig.34 8. Use carrying bars or slings (not provided) to move the boiler. Sling attachment angle β...

  • Page 37: Power Ht+ 1.200 And Power Ht+ 1.250

    5 Before installation 5.4.2 POWER HT+ 1.200 and POWER HT+ 1.250 Transport Fig.36 Caution Have at least two people standing by. >20° Handle the appliance with gloves. Transport the pallet carrying the appliance using a pallet truck, a forklift truck or a 4-wheel removals cart. Do not use the top cover of the appliance for transport lifting.
  • Page 38 5 Before installation Fig.38 3. Remove the front panel by pulling firmly on the slots provided. MW-2000766-2 Fig.39 4. Remove the 2 unloading rails by unscrewing the 4 screws. MW-2000767-2 Fig.40 5. Rotate the 2 rails by 180°. 180° MW-2000768-1 POWER HT + 7702630 - v02 - 11082018...
  • Page 39 5 Before installation Fig.41 MW-2000769-2 6. Fit the 2 rails on the edge of the pallet. Caution Ensure there is sufficient space to move the boiler. Fig.42 7. Remove the four screws attaching the boiler to the pallet. MW-2000770-2 7702630 - v02 - 11082018 POWER HT +...
  • Page 40 5 Before installation Fig.43 8. Slide the boiler onto the unloading rails. POWER HT+ 1.200 212 kg >200 kg POWER HT+ 1.250 232 kg Caution Moving the boiler is a job for two people. MW-2000771-2 Fig.44 9. Close the boiler. Adjustment range for the feet: 20 mm 10.
  • Page 41 5 Before installation Unpacking & initial preparation with slings Fig.45 1. Remove the cardboard and the polystyrene packing. 2. Remove the protective plastic. MW-2000765-2 Fig.46 3. Remove the front panel by pulling firmly on the slots provided. MW-2000766-2 7702630 - v02 - 11082018 POWER HT +...
  • Page 42 5 Before installation Fig.47 4. Lift and tilt the control panel. MW-4000295-1 Fig.48 5. Disconnect the earth wire. MW-4000296-1 Fig.49 6. Pull and lift the top panel. MW-4000297-1 POWER HT + 7702630 - v02 - 11082018...
  • Page 43 5 Before installation Fig.50 7. Screw the lifting rings into the locations provided. Tightening torque: 23 N.m. Important The rings are supplied with the boiler. 8. Remove the screws attaching the boiler to the pallet. MW-4000298-1 Fig.51 9. Use slings (not provided) to move the boiler. Sling attachment angle β...
  • Page 44 5 Before installation Fig.52 11. Level the boiler using the adjustable feet. Adjustment range for the feet: 20 mm MW-4000300-2 POWER HT + 7702630 - v02 - 11082018...

  • Page 45: Connecting Diagrams

    6 Connecting diagrams Connecting diagrams Fig.53 Connection example with a domestic hot water tank MW-3000022-01 1 Boiler flow 26 DHW load pump 2 Heating pump 31 Independent domestic hot water tank 24 Domestic hot water tank exchanger primary inlet 119 Boiler return 25 Domestic hot water tank exchanger primary outlet 7702630 - v02 - 11082018 POWER HT +...
  • Page 46 6 Connecting diagrams Fig.54 Connection example with a solar domestic hot water tank MW-1000023-03 POWER HT + 7702630 - v02 - 11082018...
  • Page 47 6 Connecting diagrams Fig.55 Connection example for boilers in cascade with domestic hot water tank and several heating circuits equipped with room temperature thermostats MW-1000024-03 OCI 345 Optional interface unit for boilers in cascade Fig.56 Connection example for boilers in cascade with domestic hot water tank and several heating circuits equipped with room temperature thermostats, including underfloor heating circuits RVS 46 MW-1000025-03...

  • Page 48: 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. Accessing the internal boiler components Fig.57 1. Remove the front panel by pulling firmly on the notches provided. MW-4000259-2 Fig.58 2.
  • Page 49 7 Installation Fig.59 3. Disconnect the earth wire. MW-4000261-1 Fig.60 4. Pull and lift the top panel. MW-4000262-1 Fig.61 5. Unhook the panel holding the control panel then place it on the boiler. MW-4000263-1 7702630 - v02 - 11082018 POWER HT +...

  • Page 50: Hydraulic Connections

    7 Installation Fig.62 6. For POWER HT+ 1.130 and POWER HT+ 1.150 only: remove the detachable panel if necessary. The disassembly instructions can be found on the detachable panel. MW-4000264-2 Hydraulic connections 7.3.1 Connecting the heating circuit Respect the installations shown in the hydraulic diagrams. Caution The heating pipe must be mounted in accordance with the provisions applicable.
  • Page 51 7 Installation POWER HT+ 1.130 and POWER HT+ 1.150 Fig.63 1. Remove the anti-dust plug located on heating return. 2. Connect the pipe to the heating return. Fig.64 3. Remove the anti-dust plug on the heating flow. 4. Mount the filling and drain valves to the boiler's inlet and outlet (valves not provided).
  • Page 52 7 Installation POWER HT+ 1.200 and POWER HT+ 1.250 Important The brackets are supplied with the boiler. Fig.66 1. Remove the dust cap located on the boiler's heating inlet and outlet. 2. Apply a sealing product (paste, oakum or Teflon) to the thread then screw the heating circuit flow bracket onto the boiler's heating flow output.

  • Page 53: Connecting The Expansion Vessel

    7 Installation Fig.68 5. Fit the circulating pump on the heating return pipe (circulating pump not provided). MW-5000810-2 7.3.2 Connecting the expansion vessel 1. Determine the volume of the expansion vessel according to the volume of water in the heating circuit. 2.

  • Page 54: Gas Connection

    7 Installation Gas connection 7.4.1 POWER HT+ 1.130 and POWER HT+ 1.150 Warning Close the main gas valve before starting work on the gas pipes. The gas pipes are not provided. Danger The diameters of the pipes must be defined in accordance with the standards in force in your country.
  • Page 55 EN 1856-1 Standard. If installing discharge and intake pipes not supplied by Baxi, 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 56: Coaxial Pipes

    7 Installation 7.5.2 Coaxial pipes Fig.72 POWER HT+ 1.130 and POWER HT+ 1.150 Fig.73 POWER HT+ 1.200 and POWER HT+ 1.250 MW-4000269-1 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. The 90°...

  • Page 57: Lengths Of The Air/Flue Gas Pipes

    7 Installation Caution The calculation of the length of the flue gas pipe must be made by a qualified technician during the installation design phase, in accordance with the requirements of the prevailing standards. 7.5.5 Lengths of the air/flue gas pipes Warning The discharge and intake pipes must be certified for the adapted configuration and their pressure drops must comply with the...
  • Page 58 7 Installation Fig.76 Through-roof flue system B Important For B configurations, the lengths given in the tables are valid for horizontal pipes with a maximum length of 1 metre. For each additional metre of horizontal pipe, subtract 1.2 m from the vertical length L Tab.20 Flue gas system connection type B...
  • Page 59 7 Installation Configuration C Important Pipes subject to technical evaluation 14 08–1289. Fig.78 Maximum length of the connections 130 - 150 kW 200 - 250 kW Tab.22 Maximum length for configuration C Configuration Unit POWER HT+ 1.130 POWER HT+ 1.150 POWER HT+ 1.200 POWER HT+ 1.250 Ø...

  • Page 60: Electrical Connections

    7 Installation Electrical connections 7.6.1 Recommendations Only qualified professionals may carry out electrical connections, always with the power off. Earth the appliance before making any electrical connections. France: Earthing must comply with the NFC 15-100 standard. Power the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more.

  • Page 61: Description Of The Power Supply Terminal Block

    7 Installation Fig.81 2. Insert the stripped part of the wire into the corresponding connector. Caution The length to be stripped must be between 10 and 12 mm. Fig.82 3. Release the pressure on the spring. The wire is attached. 4.

  • Page 62: Description Of The Sensor Terminal Block

    7 Installation 3 Power supply auxiliary circuit 2 6 Domestic hot water pump 4 Room thermostat 7 Safety contact 5 Heating circuit pump 8 Boiler pump Important Terminals 5, 6 and 7 are associated with the parameters QX1, QX2 and QX3 in the Configuration menu Caution All connections are made to the terminal blocks provided for that purpose in the boiler connection box.

  • Page 63: Filling The Installation

    7 Installation Tab.25 Connecting the boiler components in cascade Component 1 Component 2 OCI 345 module on the boiler X30 connector on the boiler PCB. (Flat cable supplied with the OCI 345 module) MB connector of a OCI 345 module MB connector of a boiler OCI 345 module DB connector of a OCI 345 module DB connector of a boiler OCI 345 module...

  • Page 64: Flushing New Installations And Installations Less Than 6 Months Old

    7 Installation 1. Open the plug on the automatic air vent. 2. Fill the heating system until you reach a pressure of between 0.15 and 0.2 MPa (1.5 and 2 bar). 3. Check the tightness of the hydraulic connections. 4. Completely vent the heating circuit for optimum running. For more information, see Flushing new installations and installations less than 6 months old, page 64...

  • Page 65: Commissioning

    8 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.

  • Page 66: Checking The Hydraulic Circuit

    8 Commissioning 6. Check the connection of the optional equipment. 7. Check the length of the cables and that they are firmly secured in the cable clamps. 8.3.3 Checking the hydraulic circuit 1. Check the siphon, which must be completely filled with water. 2.

  • Page 67: Gas Settings

    8 Commissioning Fig.87 3. Access the 312:Deaeration apprx 10min function. The 312:Deaeration apprx 10min parameter appears. 4. Turn the button to select 312:Deaeration apprx 10min. Fonction d’arrêt régulation Régime manuel Fonction de purge MENU MW-5000815-1 Fig.88 5. Confirm the selection by pressing the button.
  • Page 68 8 Commissioning Tab.27 Fan speed for gas type G25 Parameter Output Unit POWER POWER POWER POWER HT+ 1.130 HT+ 1.150 HT+ 1.200 HT+ 1.250 9524 Required speed LF minimum 1550 1800 1450 1570 9524 Required speed LF minimum for boil­ 1550 1800 1450...

  • Page 69: Setting The Air/Gas Ratio (Maximum Heat Input)

    8 Commissioning 8.4.2 Setting the air/gas ratio (maximum heat input) Fig.89 1. Accessing the Chimney sweep function 303 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...
  • Page 70 8 Commissioning Fig.92 130 - 150 kW 200 - 250 kW 7. Unscrew: POWER HT+ 1.130 the left-hand plug, which corresponds to POWER HT+ 1.150 the flue gas measurement point connec­ tion. POWER HT+ 1.200 the plug for the rear nozzle. POWER HT+ 1.250 8.

  • Page 71: Setting The Air/Gas Ratio (Reduced Heat Input)

    8 Commissioning Tab.32 Authorised CO ranges at maximum output Boiler model Type G20 Type G25 Type G25.1 Type G27 Type G31 POWER HT+ 1.130 9.2 +0.2/- 0 9.2 +0.2/- 0 10.3 +0.2/-0 9.2 +0.2/-0 10 +0.2/- 0 POWER HT+ 1.150 9.2 +0.2/- 0 9.2 +0.2/- 0 10.3 +0.2/-0...

  • Page 72: Gas Valve Basic Settings

    8 Commissioning Tab.33 Checking and setting values for gas type G20 / G25 / G25.1 / G27 / G31 Boiler model Maximum CO (ppm) POWER HT+ 1.130 < 250 POWER HT+ 1.150 < 250 POWER HT+ 1.200 < 250 POWER HT+ 1.250 <...

  • Page 73: Conversion To Propane (G31)

    8 Commissioning Fig.97 Gas valve for POWER HT+ 1.200 1 Gas flow rate setting screw and POWER HT+ 1.250 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 74: Operation

    9 Operation Operation Use of the control panel 9.1.1 Modifying the user parameters Fig.98 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 75: Stopping The Boiler

    9 Operation Fig.101 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 76: Special Functions

    9 Operation Special functions Tab.36 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 77: 10 Settings

    10 Settings 10 Settings 10.1 List of parameters 10.1.1 Shortcuts menu Tab.37 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 78: 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 79 10 Settings Tab.42 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 80: List Of Installer Parameters

    10 Settings Tab.45 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 81 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 82 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 83 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 84 10 Settings Tab.52 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 85 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 86 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 87 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 88 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 89 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 90 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 91: Setting The Parameters

    10 Settings Tab.58 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 92: Changing The Operating Mode

    10 Settings 10.2.3 Changing the operating mode Fig.106 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 93: Setting The Domestic Hot Water Temperature Set Point

    10 Settings 10.2.7 Setting the domestic hot water temperature set point Fig.108 1. Press the key to access the shortcuts menu. 2. Select the parameter Hot water temp setpoint by turning the button. 3. Press the button to confirm. 4. Turn the button to modify the temperature set point.
  • Page 94 10 Settings Fig.110 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.111 6. Select the Start parameter by turning the button. 7. Confirm the menu selection by pressing the button 8.

  • Page 95: 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 is the speed of the boiler in percentage of the nominal output. Fig.114 1. From the home screen, press the keys simultaneously.

  • Page 96: 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 97: 10.2.13 Timer Program

    10 Settings Fig.120 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 program Important...
  • Page 98 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 Default time ranges Tab.61 Time ranges according to the groups of days selected Program line 514 (heating), 574 (domestic hot water) Groups of days Pre-set programs On 1 - Off 1...
  • Page 99 10 Settings Fig.123 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 100 10 Settings Fig.126 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 101 10 Settings Fig.130 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.131 13. Confirm the menu selection by pressing the button.
  • Page 102 10 Settings Fig.132 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 103 10 Settings Resetting the timer programs to zero 1. Press the key to access the parameters. MENU Fig.136 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 104: 10.2.14 Setting A Temporary Heating Flow Temperature

    10 Settings 10.2.14 Setting a temporary heating flow temperature Fig.139 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 Managing boilers in cascade Boilers in cascade are controlled and managed by the master boiler.

  • Page 105: 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 106 11 Maintenance 4. Access the internal boiler components. Fig.140 5. Disconnect the power and command cables on the fan. MW-2000783-01 Fig.141 6. Disconnect the ignition electrode and the flame detection sensor. MW-2000784-01 Fig.142 7. Disconnect the 2 wires from the safety thermostat on the combustion chamber door and the pin under the ignition electrode.
  • Page 107 11 Maintenance Fig.143 8. Remove the 2 connectors from the gas valve. MW-4000314-01 Fig.144 9. Remove the nuts holding the burner in place on the heat exchanger. 10. Remove the screws securing the gas inlet tube elbow. MW-2000786-02 7702630 - v02 - 11082018 POWER HT +...
  • Page 108 11 Maintenance Fig.145 MW-2000787-02 11. Remove the assembly comprising the fan, Venturi, burner and gas valve to access the inside of the heat exchanger. POWER HT+ 1.200 and POWER HT+ 1.250 1. Switch off the mains supply to the boiler. 2.
  • Page 109 11 Maintenance Fig.147 6. Disconnect the ignition electrode and the flame detection sensor. MW-2000805-01 Fig.148 7. Disconnect the 2 wires from the safety thermostat on the combustion chamber door and the pin under the ignition electrode. MW-2000806-01 Fig.149 8. Remove the gas valve connector. MW-2000807-01 7702630 - v02 - 11082018 POWER HT +...
  • Page 110 11 Maintenance Fig.150 9. Remove the hose pipe. 10. Remove the gas valve pipe. MW-2000808-01 Fig.151 11. Remove the hose collar. MW-2000809-01 Fig.152 12. Remove the air supply. MW-2000810-01 POWER HT + 7702630 - v02 - 11082018...
  • Page 111 11 Maintenance Fig.153 13. Remove the 2 nuts. MW-2000811-01 Fig.154 14. Remove the nuts holding the burner in place on the heat exchanger. MW-2000812-01 7702630 - v02 - 11082018 POWER HT +...

  • Page 112: Cleaning The Heat Exchanger

    11 Maintenance Fig.155 15. Remove the assembly comprising the fan, Venturi, burner and gas valve to access the inside of the heat exchanger. MW-2000813-01 11.2.3 Cleaning the heat exchanger 1. Remove the door. Fig.156 2. Vacuum up any combustion residue. MW-2000789-01 Fig.157 3.
  • Page 113 11 Maintenance Fig.158 4. Vacuum up the remaining residue. MW-2000791-01 Fig.159 5. Rinse with clean water. Warning Do not rinse the deflector insulation. MW-2000792-01 Fig.160 6. Spray with white vinegar or a cleaning product suitable for stainless steel. Warning This step must be carried out if there is a high level of fouling, and may be repeated several times.

  • Page 114: Checking The Burner

    11 Maintenance Fig.162 9. Rinse with clean water. Warning Do not rinse the deflector insulation. MW-2000795-01 11.2.4 Checking the burner 1. Remove the burner. 2. Check whether the surface of the burner is damaged in any way. Replace the burner and its gasket if they are damaged. 3.

  • Page 115: Cleaning The Siphon

    11 Maintenance Fig.165 7. Check the distance between the ignition electrode and the ground electrode. Tab.67 Boiler model Distances and tolerances to be observed for the ignition elec­ trode and the ground electrode (mm) POWER HT+ 1.130 4.5 +/-0.5 POWER HT+ 1.150 4.5 +/-0.5 POWER HT+ 1.200 4.5 +/-0.5...

  • Page 116: Refitting The Burner

    11 Maintenance 11.2.6 Refitting the burner POWER HT+ 1.130 and POWER HT+ 1.150 Important Replace the sealing gaskets to ensure perfect leak-tightness is maintained. Fig.168 1. Refit the assembly comprising the fan, Venturi, burner and gas valve. 2. Refit the nuts holding the burner in place on the exchanger. Important Observe the tightening torque.

  • Page 117: Thermal Fuse In The Heat Exchanger

    11 Maintenance Fig.170 4. Reattach the elbow for the air supply tube using the collar. 5. Reconnect the gas valve pipe. 6. Reconnect the hose pipe. 7. Reconnect the connector to the gas valve. 8. Reconnect the 2 wires between the safety thermostat on the combustion chamber door and the pin under the ignition electrode.

  • Page 118: Cleaning The Plate Heat Exchanger (Optional Kit)

    11 Maintenance Fig.172 2. POWER HT+ 1.130 and POWER HT+ 1.150 (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 Setting the air/gas ratio (maximum heat input), page 69 Checking combustion (reduced heat input)
  • Page 119 11 Maintenance Fig.174 2. Connect the cleaning pump to the valves. MW-4000287-1 Fig.175 3. Open the valves. MW-4000288-1 Fig.176 4. Descale using a suitable product. 5. Flush through a neutralisation and passivation product. MW-4000289-1 Fig.177 6. Rinse the plate heat exchanger with water until a pH of between 6 and 9 is reached.

  • Page 120: Cleaning The Low-Loss Header (Optional Kit)

    11 Maintenance Fig.178 7. Close the valves. 8. Disconnect the cleaning pump. MW-4000291-1 Fig.179 9. Open the two valves on the secondary side. MW-4000292-1 11.2.10 Cleaning the low-loss header (optional kit) POWER HT+ 1.130 and POWER HT+ 1.150 Fig.180 1. Lift the upper panel on the low-loss header kit. 2.
  • Page 121 11 Maintenance Fig.181 3. Lift the two side panels on the low-loss header kit. 4. Pull the two side panels on the low-loss header kit to remove them. MW-4000302-1 Fig.182 5. Remove the lower insulating shell. 6. Remove the magnetic ring. Fig.183 7.
  • Page 122 11 Maintenance Fig.184 10. Close the vent valve, using the plug. Fig.185 11. Refit the magnetic ring. 12. Refit the insulation on the low-loss header. Fig.186 13. Refit the two side panels on the low-loss header kit. 14. Ensure the two side panels are securely seated by pressing firmly on them.
  • Page 123 11 Maintenance Fig.187 15. Insert the upper panel on the low-loss header kit. 16. Ensure the upper panel is securely seated by pressing firmly on it. MW-4000308-1 POWER HT+ 1.200 and POWER HT+ 1.250 Fig.188 1. Remove the insulating shell. MW-4000309-2 7702630 - v02 - 11082018 POWER HT +...
  • Page 124 11 Maintenance Fig.189 2. Remove the 2 screw plugs. 3. Remove the 2 magnetic bars from their housings. Fig.190 4. Place a container with sufficient capacity underneath the low-loss header vent valve. 5. Open the vent valve. 6. Allow the flow to continue until no more dirt is present. Fig.191 7.

  • Page 125: Replacing The 6.3 A Fuses On The Electrical Terminal Blocks

    11 Maintenance Fig.192 10. Refit the insulating shell on the low-loss header. MW-4000313-1 11.3 Replacing the 6.3 A fuses on the electrical terminal blocks Danger of electric shock Before any work, switch off the mains supply to the boiler. Fig.193 1.
  • Page 126 11 Maintenance Fig.194 2. Open the fuse-holder socket with the eyelet. 3. Take out the damaged fuse and replace it with an identical one (6.3 4. Check the fuse L, proceeding in the same way. POWER HT + 7702630 - v02 - 11082018...

  • Page 127: 12 Troubleshooting

    12 Troubleshooting 12 Troubleshooting 12.1 Error codes Fig.195 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 128 12 Troubleshooting Display Description of the error 128:Loss of flame in op Flame extinguished. 130:Flue gas temp too high Cut-off by flue gas sensor for overheating. 133:Safety time exceeded Ignition error (4 attempts). 151:BMU internal Internal error on heating PCB. 152:Parameterization General parameter setting error.

  • Page 129: Accessing The Error Memory

    12 Troubleshooting Error 162:Air pressure switch The error 162:Air pressure switch signifies that the flue gas differential pressure switch has been triggered several times over the last 24 hours. Check that the air inlet and combustion products discharge pipes are not blocked.

  • Page 130: Automatic Error Code Clearing

    12 Troubleshooting Fig.200 2. Press the keys simultaneously for at least 6 seconds. MENU 3. Select the Commissioning menu by turning the button. 4. Confirm the menu selection by pressing the button. Important Press the key to return to the main display. ---------------------------------------------------- MENU Information...

  • Page 131: 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 132: 14 Environmental

    14 Environmental 14 Environmental 14.1 Energy savings Tips on saving energy: Keep the room in which the boiler is installed well ventilated. Do not block ventilation outlets. Do not cover the radiators. Do not hang curtains in front of the radiators. Install reflective panels behind the radiators to prevent heat losses.

  • Page 133: 15 Disposal And Recycling

    15 Disposal and recycling 15 Disposal and recycling Caution Only qualified professionals are permitted to remove and dispose of the boiler, in accordance with local and national regulations. Fig.201 If you need to remove the boiler, proceed as follows: 1. Switch off the boiler. 2.

  • Page 134: 16 Warranty

    16 Warranty 16 Warranty 16.1 General We would like to thank you for buying one of our appliances and for your trust in our product. In order to ensure continued safe and efficient operation, we recommend that the product is regularly inspected and maintained. Your installer and our service department can assist with this.
  • Page 135 © 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 136 089-18 36061 BASSANO DEL GRAPPA (VI) - ITALY Via Trozzetti, 20 Servizio clienti: Tel +39 0424 517800 - Fax +39 0424 38089 www.baxi.it 7702630 - v02 - 11082018 7702630-001-02...

This manual is also suitable for:

Power ht+ 1.130Power ht+ 1.150Power ht+ 1.200Power ht+ 1.250

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