Baxi Megaflo System 24 HE IE LPG Manual de Serviço

© Baxi Heating UK Ltd 2007Installation & Service InstructionsSystem HERangeThese instructions include the Benchmark Commissioning Checklistand sho

104.0 Technical Data© Baxi Heating UK Ltd 20074.1 System 18 HEFlue Terminal Diameter 100mmDimensions Projection 125mmOutercase DimensionsCasing Height

114.0 Technical Data© Baxi Heating UK Ltd 20074.2 System 24 HEFlue Terminal Diameter 100mmDimensions Projection 125mmOutercase DimensionsCasing Height

124.0 Technical Data© Baxi Heating UK Ltd 20074.3 System 28 HEFlue Terminal Diameter 100mmDimensions Projection 125mmOutercase DimensionsCasing Height

135.0 Dimensions and Fixings© Baxi Heating UK Ltd 2007DimensionsA 780mmB 345mmC 450mmD 107mm Ø Min.E 185mmF 190mmG 131mmHeatingReturn(22mm)HeatingFlow

146.0 System Details© Baxi Heating UK Ltd 20076.1 Central Heating Circuit1. The appliance is suitable for fully pumped SEALEDSYSTEMS ONLY. Treatment o

156.0 System Detail© Baxi Heating UK Ltd 20076.4 System Filling and Pressurising1. A filling point connection on the central heating returnpipework mu

167.0 Site Requirement© Baxi Heating UK Ltd 20077.1 Location1. The boiler may be fitted to any suitable wall with the fluepassing through an outside w

177.0 Site Requirement© Baxi Heating UK Ltd 20077.3 Ventilation of Compartments1. Where the appliance is installed in a cupboard orcompartment, no air

187.0 Site Requirement© Baxi Heating UK Ltd 20077.7 Condensate DrainFAILURE TO INSTALL THE CONDENSATE DISCHARGEPIPEWORK CORRECTLY WILL AFFECT THE RELI

197.0 Site Requirement© Baxi Heating UK Ltd 20077.8 FlueNOTE: Due to the nature of the boiler a plume of watervapour will be discharged from the flue.

2© Baxi Heating UK Ltd 2007Natural GasMain System 18 HEG.C.No41 467 01Main System 24 HEG.C.No41 467 02Main System 28 HEG.C.No41 467 03Building Regulat

208.0 Flue Options© Baxi Heating UK Ltd 20078.1 Horizontal Flue Systems1. The Main System HE can be fitted with eitherhorizontal, vertical or twin flu

218.0 Flue Options© Baxi Heating UK Ltd 2007VerticalFlues(Twin Pipe)YXVerticalFluesYXThe total equivalent length for this example is= 6.5 metres.1m ex

228.0 Flue Options© Baxi Heating UK Ltd 2007Key Accessory Size Baxi Code NoConcentric Flue System 100mm diameterA1 Horizontal flue Terminal 5111073A H

238.0 Flue Options© Baxi Heating UK Ltd 2007For Twin Flue Systems fit the adaptors as follows:-8.4 Flue Duct Adaptor (Fig. 11)1. Engage the flue duct

248.0 Flue Options© Baxi Heating UK Ltd 2007Fig. 13Fig. 14100mm685mmPush Fit AdaptorAir DuctFlue DuctCut the sameamount off theAir Duct &Flue Duct

259.0 Plume Displacement© Baxi Heating UK Ltd 20079.1 Plume Displacement Kit (Fig. 14b)Kit No 5118638Content of kit1 0.9m 60/100 Concentric Flue1 1m 6

269.0 Plume Displacement© Baxi Heating UK Ltd 2007Concentric 60/100 Flue60Ø ExhaustXYFig. 1720160 Ø Exhaust (metres)Concentric 60/100 Flue (metres)021

279.0 Plume Displacement© Baxi Heating UK Ltd 2007Min. 2 metresFig. 19Flue TrimPosition of ‘Jubilee’ ClipscrewFig. 2430mm30mmFig. 21Fig. 23Fig. 20Fig.

289.0 Plume Displacement© Baxi Heating UK Ltd 20079.3 General Fitting Notes (cont.)15. For aesthetic purposes it is permissible to route the60Ø exhaus

2910.0 Installation© Baxi Heating UK Ltd 200710.1 Initial PreparationThe gas supply, gas type and pressure must be checkedfor suitability before conne

3Installer Notification Guidelines© Baxi Heating UK Ltd 2007Choose BuildingRegulations NotificationRouteContact your relevant LocalAuthority Building

3010.0 Installation© Baxi Heating UK Ltd 200710.4 Fitting The Boiler1. Remove the sealing caps from the boiler connections.2. Lift the boiler using th

3110.0 Installation© Baxi Heating UK Ltd 200710.7 Fitting The FlueHORIZONTAL FLUE1. The standard flue is suitable for lengths between 100mmminimum and

3210.0 Installation© Baxi Heating UK Ltd 200710.7 Fitting the Flue (Cont)5. Mark dimension ‘Y’ on the flue as shown (Fig. 36).Carefully cut the waste

3310.0 Installation© Baxi Heating UK Ltd 200710.8 Making The Electrical ConnectionsTo connect the mains input cable proceed as follows:-1. Slacken the

3411.0 Commissioning© Baxi Heating UK Ltd 200711.1 Commissioning the Boiler1. Reference should be made to BS 5449 whencommissioning the boiler. 2. Ens

3511.0 Commissioning© Baxi Heating UK Ltd 2007OUTMINPressure Test Point Sealing ScrewFig. 4711.2 Checking the Burner Pressure1. Turn on the gas and el

3612.0 Completion© Baxi Heating UK Ltd 200712.1 Completion 1. Hinge the facia panel upwards and refit the case frontpanel. Tighten the securing screws

3713.0 Servicing© Baxi Heating UK Ltd 200713.1 Annual Servicing1. For reasons of safety and economy, it is recommendedthat the boiler is serviced annu

3813.0 Servicing© Baxi Heating UK Ltd 200713.1 Annual Servicing (Cont)12. Ease the front edge of the left hand baffle upwards,disengaging the spring c

3914.0 Changing Components© Baxi Heating UK Ltd 2007IMPORTANT: When changing components ensure thatboth the gas and electrical supplies to the boiler

4Legislation© Baxi Heating UK Ltd 2007Codes of Practice, most recent version should be usedIMPORTANT - Installation, Commissioning, Service & Repa

4014.0 Changing Components© Baxi Heating UK Ltd 200714.3 Heat Exchanger (Fig. 61)1. Remove the fan as described in section 14.1.2. Drain the primary c

4114.0 Changing Components© Baxi Heating UK Ltd 200714.5 Injectors (Fig. 63)1. Remove the burner as described in Section 14.4.2. Undo the screws secur

4214.0 Changing Components© Baxi Heating UK Ltd 200714.8 Gas Valve (Fig. 65)1. Undo the nut on the gas feed pipe under the boiler.2. Completely undo t

4314.0 Changing Components© Baxi Heating UK Ltd 200714.12 Pump - Head Only (Fig. 68)1. Drain the primary circuit and remove the socket headscrews secu

4414.0 Changing Components© Baxi Heating UK Ltd 200714.15 Pressure Gauge (Figs. 71 & 72) 1. Drain the primary circuit and undo the nut on thep

4514.0 Changing Components© Baxi Heating UK Ltd 200714.18 Main PCB (Fig. 76)1. Note the setting of the temperature control knob. Rotatethe knob fully

4614.0 Changing Components© Baxi Heating UK Ltd 200714.20 Central Heating Differential Valve (Figs. 77 & 78)1. Drain the primary circuit.2. Undo t

4714.0 Changing Components© Baxi Heating UK Ltd 200714.23 Secondary Heat Exchanger) (Fig. 80)1. Drain the primary circuit2. Undo the four screws secur

4815.0 Electrical© Baxi Heating UK Ltd 2007- brown- black- blue- redbrbkbr - green- green / yellow- whitegg/yw Return Heating Temperature SensorReset

4916.0 Short Part List© Baxi Heating UK Ltd 2007Key G.C. Description ManufacturersNo. No. Part No.22 Fan (18 HE) 5113278Fan (24 HE) 5112627Fan (28 HE)

5Safe Manual Handling© Baxi Heating UK Ltd 2007GeneralThe following advice should be adhered to, from when first handling the boiler to the final stag

5017.0 Fault Finding© Baxi Heating UK Ltd 2007Carry out initial fault finding checks1. Check that gas, water and electrical supplies are available at

5117.0 Fault Finding© Baxi Heating UK Ltd 2007Fault Finding Solutions Sections A to EIs there 230V at:Is there 230V at:Main terminals L and N Check el

5217.0 Fault Finding© Baxi Heating UK Ltd 2007Replace PCBGCheck and correct if necessary1. Ignition electrode and lead2. Electrode connection3. Spark

5318.0 Notes© Baxi Heating UK Ltd 2007

CONTROLS To comply with the Building Regulations, each section must have a tick in one or other of the boxesTIME & TEMPERATURE CONTROL TO HEATING

SERVICE 1DATEENGINEER NAMECOMPANY NAMETEL No.CORGI ID CARD SERIAL No.COMMENTSSIGNATURESERVICE 2DATEENGINEER NAMECOMPANY NAMETEL No.CORGI ID CARD SERIA

UK Comp No 5121186 - Iss. 2 - 04/07All descriptions and illustrations provided in this leaflet have been carefullyprepared but we reserve the right to

6© Baxi Heating UK Ltd 2007CONTENTS1.0 Introduction 72.0 General Layout 83.0 Appliance Operation 94.0 Technical Data 105.0 Dimensions and Fixings 136.

71.0 Introduction© Baxi Heating UK Ltd 20071.1 Description1. The Main System HE range are fully automatic gas firedwall mounted system boilers. They a

82.0 General Layout© Baxi Heating UK Ltd 20072.1 Layout1. Air Pressure Switch2. Expansion Vessel3. Burner Manifold4. Automatic Air Vent5. Circulation

93.0 Appliance Operation© Baxi Heating UK Ltd 20073.1 Operating Mode (Fig. 2)1. With a demand for heating, the pump circulates waterthrough the primar