Baxi Platinum Combi 24 Installation And Service Manual
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Baxi Platinum Combi 24 Installation And Service Manual

Gas fired wall mounted condensing combination boiler
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United Kingdom
en
Installation and Service Manual
Gas Fired Wall Mounted Condensing Combination Boiler
P P latinum Combi
24 - 28 - 33 - 40
These instructions include the Benchmark Commissioning Checklist and should be left with the
user for safe keeping. They must be read in conjunction with the Flue Installation Guide.

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  • Page 1 United Kingdom Installation and Service Manual Gas Fired Wall Mounted Condensing Combination Boiler P P latinum Combi 24 - 28 - 33 - 40 These instructions include the Benchmark Commissioning Checklist and should be left with the user for safe keeping. They must be read in conjunction with the Flue Installation Guide.
  • Page 2 UK and to encourage the regular servicing of all © Baxi Heating UK Ltd 2015 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or stored in any central heating systems to ensure safety and efficiency.

  • Page 3: Installer Notification Guidelines

    Benchmark Checklist ‘Gas Safe Register’ will issue a LABC will record the data Building Regulations Compliance and will issue a Certificate to the property owner certificate of compliance and inform the relevant LABC © Baxi Heating UK Ltd 2015...
  • Page 4 Installation of gas fired hot water boilers. EC - Declaration of Conformity BS 5440 Part 1 Flues. Baxi Heating UK Limited being the manufacturer / distributor within the European BS 5440 Part 2 Ventilation. BS 7074 Expansion vessels and ancillary equipment for Economic Area of the following sealed water systems.
  • Page 5 If at any time when installing the boiler you feel that you may have injured yourself STOP !! DO NOT ‘work through’ the pain - you may cause further injury. IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER - OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING !! © Baxi Heating UK Ltd 2015...

  • Page 6: Table Of Contents

    Flue Options Installation 10.0 Commissioning 11.0 Completion 12.0 Servicing 13.0 Changing Components 14.0 Setting the Gas Valve 15.0 Electrical 16.0 Short Parts List 17.0 Fault Finding 18.0 LPG Model Supplement 19.0 Notes Benchmark Checklist © Baxi Heating UK Ltd 2015...

  • Page 7: Introduction

    1.0 Introduction Description 1. The Baxi Platinum Combi is a fully automatic gas fired wall mounted condensing combination boiler. It is room sealed and fan assisted, and will serve central heating and mains fed Case Front Panel domestic hot water.

  • Page 8: General Layout

    Central Heating Temperature Control Hot Water Temperature Control Venturi Air/Gas Collector Combustion Box Cover & Burner Igniter Burner On Light Central Heating Mode Light Domestic Hot Water Mode Light Display Position of Integral Timer GRASSLIN © Baxi Heating UK Ltd 2015...

  • Page 9: Appliance Operation

    1. With the selector switch (see Section 2.1) in either the central heating or central heating and domestic hot water position, the pump will automatically operate for 1 minute in every 24 hours to prevent sticking. Fig. 3 © Baxi Heating UK Ltd 2015...

  • Page 10: Technical Data

    0085. Packaged Boiler Carton 48.0 kg Installation Lift Weight 42.2 kg NOTE: All data in this section are nominal values and subject to normal production tolerances. 1000 1200 Flow Rate (l/h) © Baxi Heating UK Ltd 2015...
  • Page 11 (1) Low temperature means for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C return temperature (at heater inlet). (2) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet. S S ee The back cover for contact details. © Baxi Heating UK Ltd 2015...

  • Page 12: Dimensions And Fixings

    32.5 mm Condensate Drain 65 mm 65 mm 65 mm 65 mm 65 mm Heating Heating Domestic Hot Cold Water Pressure Relief Return Valve Flow Water Outlet Inlet Inlet (22mm) (22mm) (15mm) (22mm) (15mm) (15mm) © Baxi Heating UK Ltd 2015...

  • Page 13: System Details

    6.0 System Details Information 1. The Baxi Platinum Combi Condensing Combination Boiler is a ‘Water Byelaws Scheme - Approved Product’. To comply with the Water Byelaws your attention is drawn to the following installation requirements and notes (IRN). a) IRN 001 - See text of entry for installation requirements and notes.
  • Page 14 Fig. 6 pipe. 4. A remote relief valve kit is available to enable the boiler to Pressure Relief Valve be installed in cellars or similar locations below outside Discharge Pipe ground level (kit no. 5121379). © Baxi Heating UK Ltd 2015...
  • Page 15 If the mains cold water to the property is fitted with an artificial softening/treatment device the source use to fill or re-pressurise the system must be upstream of such a device. © Baxi Heating UK Ltd 2015...

  • Page 16: Site Requirements

    Additional clearances may be required for the passage of pipes around local obstructions such as joists running parallel to the front face of the boiler. 450mm Min For Servicing Purposes 5mm Min In Operation Fig. 9 © Baxi Heating UK Ltd 2015...
  • Page 17 In GB this is the current I.E.E. Wiring Regulations and Zone 0 Building Regulations. In IE reference should be made to the current edition of I.S. 0.6 m 813 “Domestic Gas Installations” and the current ETCI rules. Fig. B In GB Only © Baxi Heating UK Ltd 2015...
  • Page 18 *It is NOT RECOMMENDED to connect upstream of the sink or other waste water receptacle ! © Baxi Heating UK Ltd 2015...
  • Page 19 External runs & those in Unheated Location unheated locations still require (e.g. Garage) insulation. Basement or similar (heated) Boiler Pipe must terminate above water level but below surrounding surface. Cut end at 45° Condensate Pump © Baxi Heating UK Ltd 2015...
  • Page 20 Top View Rear Flue Fig. 11 Property Boundary Line Air Inlet Opening Window or Door 150mm Fig. 12a MIN. Likely flue positions requiring Fig. 12 a flue terminal guard © Baxi Heating UK Ltd 2015...

  • Page 21: Flue Options

    Guide supplied with the boiler. from the terminal to allow condensate to run back to the boiler. This bend is equivalent to 1 metre This bend is equivalent to 1 metre Total equivalent length = A+B+C+2 x 90°Bends © Baxi Heating UK Ltd 2015...
  • Page 22 Please leave these instructions with the Installation & Servicing Instructions. © Baxi Heating UK Ltd 2011 Fig. 14a © Baxi Heating UK Ltd 2015...

  • Page 23: Installation

    12. Fit the filling loop as described in the instructions Fig. 19 Central Heating Return supplied with it. Flushing 1. Connect a tube to the central heating flow or return pipe (Fig. 19). 2. Flush thoroughly (see System Details, Section 6.2). © Baxi Heating UK Ltd 2015...
  • Page 24 2. The connection will accept 21.5mm ( in) plastic overflow Fig. 21 pipe which should generally discharge internally into the household drainage system. If this is not possible, discharge into an outside drain is acceptable. Discharge Pipe © Baxi Heating UK Ltd 2015...
  • Page 25 9. Using the clearance holes in the Connection Assembly secure it to the Terminal Assembly using the screws supplied (Fig. 26). Fig. 24 ‘TOP’ Label Securing Screw Sealing Tape Fig. 25 Fig. 26 ‘TOP’ Label © Baxi Heating UK Ltd 2015...
  • Page 26 17. Make good between the wall and air duct outside the Elbow to adaptor securing screws building, appropriate to the wall construction and fire rating. 18. If necessary fit a terminal guard (see Section 8.4). Slots at bottom Fig. 29 © Baxi Heating UK Ltd 2015...
  • Page 27 NOTE: The 230V switched signal for external controls (Frost Stat - Room Stat - Timer) must always be taken from terminal 2 at the boiler. Live, Neutral and Earth to power these controls must be taken from the Fused Spur. © Baxi Heating UK Ltd 2015...

  • Page 28: Commissioning

    ‘ 0’ the boiler runs at minimum rate. 20. This function is maintained for 20 minutes unless the maximum CH temperature is exceeded. The function can be disabled at any time by turning the right hand knob. © Baxi Heating UK Ltd 2015...
  • Page 29 Ensure test points are capped, the calling 0344 871 1525. boiler case front panel is correctly fitted & secured and all other commissioning procedures completed. Complete the ‘Benchmark’ Checklist, recording the CO & combustion ratio readings as required. © Baxi Heating UK Ltd 2015...
  • Page 30 For example: If the heating is not required between 10 A.M. and 11 A.M. the four tappets anticlockwise from the 10 A.M. will be set inwards (Fig. 54b). On Position Off Position Time Pointer Fig. 54b © Baxi Heating UK Ltd 2007...
  • Page 31 12. For IE, it is necessary to complete a “Declaration of Conformity” to indicate compliance with I.S. 813. An example of this is given in I.S. 813 “Domestic Gas Installations”. This is in addition to the Benchmark Commissioning Checklist. Fig. 44 Fig. 43 © Baxi Heating UK Ltd 2015...

  • Page 32: Completion

    I.S. 813 “Domestic Gas Installations”. This is in addition to the Benchmark Commissioning Checklist. 5. Hand over the Users Operating, Installation and Servicing Instructions giving advice on the necessity of regular servicing. Facia Panel © Baxi Heating UK Ltd 2015...

  • Page 33: Servicing

    (Fig. 46). 5. Unscrew the sump from the bottom of the condensate trap Sump assembly (Fig. 47) and remove any deposits from the sump and trap. Clean as necessary and replace the sump. Fig. 47 © Baxi Heating UK Ltd 2015...
  • Page 34 Cold Water Blanking the Benchmark Commissioning Checklist at the rear of this Inlet Tap publication and then hand it back to the user. Restrictor (not on 40 models) Hydraulic Inlet Assembly Fig. 51 Filter © Baxi Heating UK Ltd 2015...

  • Page 35: Changing Components

    3. Check the condition of the sealing gaskets and replace if necessary. Reassemble in reverse order. Spark Electrode Electrode Leads Sensing Electrode Fig. 53 © Baxi Heating UK Ltd 2015...
  • Page 36 1. Remove the collector and fan assembly as described in Venturi section 13.3. Injector Collector 2. Extract and replace the injector and reassemble in reverse Fig. 55 order. Fig. 56 When fitting the venturi ensure that the arrow is pointing forward © Baxi Heating UK Ltd 2015...
  • Page 37 Keep the insulation vertical and Heat press firmly into position. Exchanger 7. Examine the cover seal and replace if necessary. Rear Insulation Spark Electrode Venturi Cover Insulation Seal Fig. 58 Collector Electrode Sensing Leads Electrode © Baxi Heating UK Ltd 2015...
  • Page 38 3. Unscrew the sensor from the plate heat exchanger manifold. Examine the sealing washer,replacing if necessary. 4. Reassemble in reverse order. The plug will only fit one way. Pressure Sensor Plate Heat Exchanger Fig. 61 DHW Temperature Sensor © Baxi Heating UK Ltd 2015...
  • Page 39 2. Examine the ‘O’ ring seal, replacing if necessary, and fit it Fig. 62 to the new automatic air vent. Pump Head 3. Reassemble in reverse order. Automatic Air Vent Fig. 63 © Baxi Heating UK Ltd 2015...
  • Page 40 4. Fit the new valve and ‘O’ ring seal and set to the previously noted orientation. Reassemble in reverse order. Fig. 66 ‘O’ ring seal Grub Screw Safety Pressure Relief Valve Fig. 67 Discharge Pipe © Baxi Heating UK Ltd 2015...
  • Page 41 Assembly 6. Remove the valve assembly. Examine any seals or washers, replacing if necessary. Transfer the DHW NTC to the new valve and reassemble in reverse order. Fig. 69 Pressure Sensor © Baxi Heating UK Ltd 2015...
  • Page 42 Remove the electrical connections. 4. Remove the screws securing the switch to the facia panel. 5. Fit the new switch, ensuring that it is correctly positioned and reassemble in reverse order. © Baxi Heating UK Ltd 2015...
  • Page 43 4 full turns clockwise (Fig. 73). If the boiler will not light, or the correct CO cannot be achieved contact Baxi Customer Support 0344 871 1525. 13.25 Expansion Vessel (Fig. 74) 1. Drain the primary circuit and undo the nut on the vessel Fig.

  • Page 44: Setting The Gas Valve

    Allow the analyser reading maximum rate it must be to settle before any further 12. Check the Combustion Performance (CO/CO ratio). rechecked at minimum rate and adjustment This must be less than 0.004. adjusted if required. © Baxi Heating UK Ltd 2015...

  • Page 45: Electrical

    6 Way Connector Pump Spark Generator Diverter Valve g or w Gas Valve Link Ignition Electrode Mains Input Cable - green - brown - green / yellow - black - red - blue - white © Baxi Heating UK Ltd 2015...

  • Page 46: Short Parts List

    Plate Heat Exchanger (33/40) 248723 Pump 7220533 Flue Thermostat 5114747 NTC Sensor 5114725 Overheat Thermostat 5114729 Pressure Gauge 5118385 PCB 24 5121862 PCB 28 720043401 PCB 33 720795201 PCB 40 5122287 Pump PCB 7222704 © Baxi Heating UK Ltd 2015...

  • Page 47: Fault Finding

    5 seconds when E110, E130 & E133 are displayed it is possible to relight the boiler. 4. If this does not have any effect, or the codes are displayed regularly further investigation is required. © Baxi Heating UK Ltd 2015...
  • Page 48 Burner output modulates to Error 130 flashing maintain the temperature set Go to section ‘M’ Pump continues to run for 3 Operation sequence Burner goes out Fan stops after 10 seconds minutes successful (room thermostat open) © Baxi Heating UK Ltd 2015...
  • Page 49 Error 130 flashing Go to section ‘M’ Close DHW tap DHW flow sensor senses no Operation sequence Fan stops after 10 seconds Pump runs for 30 seconds flow. Burner goes out successful © Baxi Heating UK Ltd 2015...

  • Page 50: Fault Finding Solutions Sections

    Open the automatic air vent vent is opened Fan connections correct at fan. PCB - X2 connector, is 230V AC across Fan jammed or faulty winding Replace fan terminals 3 & 4 Replace PCB © Baxi Heating UK Ltd 2015...
  • Page 51 1. Ignition electrode and lead (Note: from multimeter connect 2. Electrode connection ‘common’ to 2 & ‘volts’ to 5). Replace igniter 3. Spark gap and position Check wiring Burner Viewing Window Sensing Spark Ignition Electrode Electrode Electrode Position © Baxi Heating UK Ltd 2015...
  • Page 52 Cold resistance approximately Replace sensor 10kê @ 25° C (CH sensor) 20kê @ 25° C (Flue sensor) (resistance reduces with increase in temp.) Replace heat exchanger If pump is running the heat exchanger could be obstructed © Baxi Heating UK Ltd 2015...

  • Page 53: Notes

    18.0 Notes © Baxi Heating UK Ltd 2015...
  • Page 54 GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty.

  • Page 55: Service Record

    SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. SERVICE 01 SERVICE 02 Date:...

  • Page 56: Benchmark Checklist

    For the warranty to be maintained, please make sure... Benchmark checklist is completed Warranty is registered with Baxi The boiler has an annual service For full terms and conditions, visit www.baxi.co.uk/terms. Failure to adhere to terms and conditions will void your manufacturer’s warranty. Baxi Brooks House,...

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