Baxi Megaflo System 24 HE IE LPG Manual de Serviço

© Baxi Heating UK Ltd 2011Baxi Megaflo System HE IE RangeGas Fired Wall Mounted Condensing BoilerInstallation & Servicing InstructionsThese instru

10© Baxi Heating UK Ltd 20114.0 Technical Data4.2 Megaflo System 24 & 28 HE IE LPGFlue Terminal Diameter 100mmDimensions Projection 125mmOutercase

115.0 Dimensions and Fixings© Baxi Heating UK Ltd 2011360° Orientation Flue Ø 100mmDCBAEGFAt least1.5°HHeatingReturn(3/4”)HeatingFlow(3/4”)Pressure Re

126.0 System Details© Baxi Heating UK Ltd 20116.1 Central Heating Circuit1. The appliance is intended for fully pumped sealed systems.However it can b

136.0 System Details© Baxi Heating UK Ltd 2011Fig. 3Filling Loop forSealed SystemsFig. 4StopValveDoubleCheckValveMainsColdWaterCHReturnTemporaryHosePr

147.0 Site Requirements© Baxi Heating UK Ltd 20117.1 Location1. The boiler may be fitted to any suitable wall with the fluepassing through an outside

157.0 Site Requirement© Baxi Heating UK Ltd 20117.3 Ventilation of Compartments1. Where the appliance is installed in a cupboard orcompartment, no air

167.0 Site Requirements© Baxi Heating UK Ltd 20117.7 Condensate DrainFAILURE TO INSTALL THE CONDENSATE DISCHARGEPIPEWORK CORRECTLY WILL AFFECT THE REL

177.0 Site Requirements© Baxi Heating UK Ltd 20117.8 FlueNOTE: Due to the nature of the boiler a plume of watervapour will be discharged from the flue

188.0 Flue Options© Baxi Heating UK Ltd 2011HorizontalFlues(ii)(i)Plume Displacement 60 /100 dia Kit1M Extensions 45° & 93° elbowsare also availab

198.0 Flue Options© Baxi Heating UK Ltd 2011VerticalFluesVerticalFlues(Twin Pipe)(ii)(i)(ii)(i)8.2 Twin & Vertical Flue Systems1. Maximum permissi

2© Baxi Heating UK Ltd 2011Natural GasBaxi Megaflo System 15 HE IEBaxi Megaflo System 18 HE IEBaxi Megaflo System 24 HE IEBaxi Megaflo System 28 HE IE

208.0 Flue Options© Baxi Heating UK Ltd 2011Key Accessory Size Code NoFLUE GROUP AConcentric Flue System 100mm diameterA3 Telescopic Internal Flue Kit

218.0 Flue Options© Baxi Heating UK Ltd 20118.4 Twin Flue Duct Adaptor1. The kit allows connection of a twin flue system to theboiler adaptor.8.5 Twin

228.0 Flue Options© Baxi Heating UK Ltd 20118.6 For Roof Terminals1. In the case of a pitched roof 25 - 50 degrees, position the leadtile to replace/f

239.0 Plume Displacement© Baxi Heating UK Ltd 20119.1 Plume Displacement Kit (Fig. 14)Kit No 5118638Content of kit1 0.9m 60/100 Concentric Flue1 1m 60

249.0 Plume Displacement© Baxi Heating UK Ltd 2011Concentric 60/100 Flue60Ø ExhaustXYFig. 1720246810121460 Ø Exhaust (metres) XConcentric 60/100 Flue

259.0 Plume Displacement© Baxi Heating UK Ltd 2011Min. 2 metresFig. 1950mmFlue TrimPosition of ‘Jubilee’ ClipscrewFig. 2430mm30mmFig. 21Fig. 23Fig. 20

269.0 Plume Displacement© Baxi Heating UK Ltd 20119.3 General Fitting Notes (cont.)15. For aesthetic purposes it is permissible to route the60Ø exhaus

2710.0 Installation© Baxi Heating UK Ltd 200710.1 Unpacking & Initial PreparationThe gas supply, gas type and pressure must be checked forsuitabil

2810.0 Installation© Baxi Heating UK Ltd 200710.3 Fitting The Boiler1. Lift the boiler by holding as shown by the shaded areas.The boiler should be li

2910.0 Installation© Baxi Heating UK Ltd 201110.6 Fitting The FlueHORIZONTAL TELESCOPIC FLUE1. There are two telescopic sections, the TerminalAssembly

3© Baxi Heating UK Ltd 2011LegislationCodes of Practice - refer to the most recent versionIMPORTANT - Installation, Commissioning, Service & Repai

3010.0 Installation© Baxi Heating UK Ltd 2011 10.6 Fitting the Flue (Cont)8. Adjust the two telescopic sections to dimension ‘Y’ (Fig. 42). Ensure t

3110.0 Installation© Baxi Heating UK Ltd 201110.7 Making The Electrical ConnectionsThe boiler is fitted with a 1.3m length of 3 core of cable.This can

3211.0 Commissioning© Baxi Heating UK Ltd 2011PumpAutomatic AirVentPressure GaugeScrew21043barFig. 52Selector SwitchCentral Heating Temperature Contro

3311.0 Commissioning© Baxi Heating UK Ltd 2011Selector SwitchDisplay21043barCentral Heating Temperature ControlCalibration ControlFig. 56Fig. 57Fig. 5

3412.0 Completion© Baxi Heating UK Ltd 201112.1 Completion 1. Instruct the user in the operation of the boiler andsystem including the integral timer,

3513.0 Servicing© Baxi Heating UK Ltd 2011Case Front PanelFig. 62Facia Panel SecuringScrewsFig. 63Inner DoorPanelFig. 64CondensateTrapSump13 .1 Annual

7.5±14±0.510±1Spark Ignition ElectrodeSensing Electrode3613.0 Servicing© Baxi Heating UK Ltd 2011Fig. 66Fig. 65Gas Inlet PipeVenturiInjectorFan, Colle

3714.0 Changing Components© Baxi Heating UK Ltd 2011IMPORTANT: When changing components ensure thatboth the gas and electrical supplies to the boiler

3814.0 Changing Components© Baxi Heating UK Ltd 201114.3 Fan (Fig. 69)1. Undo the nut on the gas inlet pipe to the venturi (Fig. 70)and pull the sensi

3914.0 Changing Components© Baxi Heating UK Ltd 201114.6 Burner (Fig. 72) 1. Undo the screws securing the collector to the venturi andextension piece.

4© Baxi Heating UK Ltd 2011Safe Manual HandlingGeneralThe following advice should be adhered to, from when first handling the boiler to the final stag

4014.0 Changing Components© Baxi Heating UK Ltd 201114.8 Flue/Heat Exchanger Thermostat Sensor (Fig. 74)1. Ease the retaining tab on the sensor away a

4114.0 Changing Components© Baxi Heating UK Ltd 201114.13 Pump - Head Only (Fig. 78)1. Drain the primary circuit and remove the socket headscrews secu

4214.0 Changing Components© Baxi Heating UK Ltd 201114.16 Pressure Gauge (Figs. 81 & 82) 1. Drain the primary circuit and undo the nut on the

4314.0 Changing Components© Baxi Heating UK Ltd 201114.18 P.C.B. (Fig. 85)1. Note the settings of the temperature control knobs,rotate them fully anti

4414.0 Changing Components© Baxi Heating UK Ltd 2011Gas ValveGas FeedElbowFig. 86Earth LeadExpansion VesselBoiler ChassisLock NutFig. 87Retaining Brac

4515.0 Setting the Gas Valve© Baxi Heating UK Ltd 2011Selector SwitchDisplay21043barCentral Heating Temperature ControlCalibration ControlFig. 89Fig.

4616.0 Electrical© Baxi Heating UK Ltd 2011- brown- black- blue- whitebrbkbw- green- green / yellow- redgg/yr Control PCBX2 X3X5011212 3344556789X112C

4717.0 Short Parts List© Baxi Heating UK Ltd 2011Short Parts ListKey G.C. Description ManufacturersNo. No. Part No.302 Flue Thermostat 5114747306 Burn

4818.0 Fault Finding© Baxi Heating UK Ltd 2011NOTE: When instructed to turn theselector to the reset position turn theselector switch fully anticlockw

4918.0 Fault Finding© Baxi Heating UK Ltd 2011Refer to Section 16.0 “Illustrated Wiring Diagram” for position of terminals and componentsCentral Heati

5© Baxi Heating UK Ltd 2011CONTENTS1.0 Introduction 62.0 General Layout 73.0 Appliance Operation 84.0 Technical Data 95.0 Dimensions and Fixings 116.0

5018.0 Fault Finding© Baxi Heating UK Ltd 2011Fault Finding Solutions SectionsIs there 230V at:Is there 230V at:Main terminals L and N Check electrica

5118.0 Fault Finding© Baxi Heating UK Ltd 2011Temperature sensors faulty.Cold resistance approximately10kΩ @ 25° C (DHW and CH sensors)20kΩ @ 25° C

52© Baxi Heating UK Ltd 201118.0 Fault FindingCheck and correct if necessary1. The mechanical set of the gas valve(CO2 values - see instruction)2. Fla

5319.0 Notes© Baxi Heating UK Ltd 2011Supplied by HeatingSpares247.com

1 11.0 Introduction© Baxi Heating UK Ltd 2011CONTROLSTIME & TEMPERATURE CONTROL TO HEATING ROOM T/STAT & PROGRAMMER/TIMER PROGRAMMABLE ROOMSTA

55SERVICE 1DATEENGINEER NAMECOMPANY NAMETEL No.ENGINEER ID CARD SERIAL No.COMMENTSSIGNATURESERVICE 2DATEENGINEER NAMECOMPANY NAMETEL No.ENGINEER ID CA

© Baxi Heating UK Ltd 2011UK Comp No5129838 - Iss 7 - 3/11BAXIA Trading Division of Baxi Heating UK Ltd (3879156),Brooks House, Coventry Road, Warwick

6© Baxi Heating UK Ltd 20111.0 Introduction1.1 Description1. The Baxi Megaflo System HE IE is a fully automatic gas firedwall mounted condensing syste

7© Baxi Heating UK Ltd 20112.0 General Layout2.1 Layout1. Expansion Vessel2. Automatic Air Vent3. Circulation Pump4. Drain Off Point5. Pressure Relief

8© Baxi Heating UK Ltd 20113.0 Appliance Operation3.1 Operating Mode (Fig. 2)1. With a demand for heating or hot water, the pumpcirculates water throu

9© Baxi Heating UK Ltd 20114.0 Technical Data4.1 Megaflo System 15, 18, 24, 28 & 32 HE IEFlue Terminal Diameter 100mmDimensions Projection 125mmOu