Baxi 80 HE Manual de Serviço

Baxi Combi Instant 80 HEBaxi Combi Instant 105 HEGas Fired Wall Mounted Condensing Combination BoilerInstallation & Servicing InstructionsPlease l

4.0 Technical Data104.2 Combi Instant 105 HETemperaturesC.H. Flow Temp (adjustable)35°C to 85°C max (± 5°C)D.H.W. Flow Temp 35°C to 65°C max (± 5°C)de

5.0 Dimensions and Fixings11DimensionsA 780mmB 345mmC 450mmD 116mm Ø Min.E 185mmF 190mmG 131mmDomestic Hot Water Outlet(15mm)Cold WaterInlet(15mm)Heat

6.0 System Details126.1 Information1. The Baxi Combi Instant 80 HE and 105 HE CondensingCombination Boilers are ‘Water Byelaws Scheme - ApprovedProduc

6.0 System Details136.5 System Filling and Pressurising1. A filling point connection on the central heating returnpipework must be provided to facilit

6.0 System Details146.8 Domestic Hot Water Circuit (Fig. 8)1. All DHW circuits, connections, fittings, etc. should befully in accordance with relevant

7.0 Site Requirements157.1 Location1. The boiler may be fitted to any suitable wall with theflue passing through an outside wall or roof anddischargin

7.0 Site Requirements167.3 Ventilation of Compartments1. Where the appliance is installed in a cupboard orcompartment, no air vents are required as th

7.0 Site Requirement177.6 Condensate DrainFAILURE TO INSTALL THE CONDENSATEDISCHARGE PIPEWORK CORRECTLY WILL AFFECTTHE RELIABLE OPERATION OF THE BOILE

7.0 Site Requirements187.7 FlueNOTE: Due to the nature of the boiler a plume ofwater vapour will be discharged from the flue. Thisshould be taken into

7.0 Site Requirements197.8 Flue DimensionsThe standard horizontal flue kit allows for flue lengthsbetween 100mm and 685mm from elbow to terminal (Fig.

2Natural GasBaxi Combi Instant 80 HEG.C.No47 075 17Baxi Combi Instant 105 HEG.C.No47 075 19The boiler meets the requirements of Statutory Instrument “

207.0 Site Requirements7.11 Flue Options1. The Baxi Combi Instant 80 HE and 105 HE can befitted with flue systems as illustrated. 2. The standard flue

8.0 Installation218.1 Initial PreparationThe gas supply, gas type and pressure must bechecked for suitability before connection (see Section7.4).1. Af

8.0 Installation228.4 Fitting The Boiler1. Remove the sealing caps from the boiler connections.2. Lift the boiler using the lower edges. Engage the sl

8.0 Installation238.7 Fitting The FlueHORIZONTAL FLUE1. The standard flue is suitable for lengths between100mm minimum and 685mm maximum, as measuredf

8.0 Installation248.7 Fitting the Flue (Cont)5. Mark dimension ‘Y’ on the flue as shown (Fig. 23).Carefully cut the waste material from the flue, ensu

8.0 Installation258.8 Making The Electrical ConnectionsTo connect the mains input cable proceed as follows:-1. Slacken the facia panel securing screws

9.0 Commissioning the Boiler269.1 Commissioning the Boiler1. Reference should be made to BS 5449 Section 5when commissioning the boiler. 2. Open the m

9.0 Commissioning the Boiler27OUTMINBurner Pressure Test Point Sealing ScrewFig. 349.2 Checking the Burner Pressure1. Turn on the gas and electrical s

10.0 Completion2810.1 Completion 1. Hinge the facia panel upwards and refit the casefront panel. Tighten the securing screws (Fig. 38).2. Instruct the

11.0 Servicing the Boiler2911 .1 Annual Servicing1. For reasons of safety and economy, it isrecommended that the boiler is serviced annually.Servicing

3Legislation 41.0 Introduction 52.0 General Layout 63.0 Appliance Operation 74.0 Technical Data 95.0 Dimensions and Fixings 116.0 System Details 127.0

11.0 Servicing the Boiler3011.1 Annual Servicing (Cont)11. Ease the front edge of the left hand baffle upwards,disengaging the spring clip. Disengage

12.0 Changing Components31IMPORTANT: When changing components ensurethat both the gas and electrical supplies to theboiler are isolated before any wor

12.0 Changing Components3212.3 Heat Exchanger (Fig. 50)1. Remove the fan as described in section 12.1.2. Drain the primary circuit. Prise the three pi

12.0 Changing Components3312.5 Injectors (Fig. 52)1. Remove the burner as described in Section 12.4.2. Undo the screws securing the injector manifold

12.0 Changing Components3412.8 Gas Valve (Fig. 54)1. Undo the nut on the gas feed pipe under the boiler.2. completely undo the securing screws and hin

12.0 Changing Components3512.12 Pump - Head Only (Fig. 57)1. Drain the primary circuit and remove the socket headscrews securing the pump head to the

12.0 Changing Components3612.15 Pressure Gauge (Figs. 60 & 61)1. Drain the primary circuit and undo the nut on thepressure gauge capillary.2. Rem

12.0 Changing Components3712.18 Pressure Relief Valve (Fig. 64)1. Drain the primary circuit.2. Disconnect the discharge pipe from the valve. Using asu

12.0 Changing Components3812.21 Plate Heat Exchanger (Fig. 67)1. Drain the primary circuit.2. While supporting the heat exchanger undo thescrews secur

12.0 Changing Components3912.22 Diverter Valve Assembly (Cont)CH Pressure Differential Valve Diaphragm (Fig. 70)1. Isolate the boiler from the centra

Legislation4Codes of Practice, most recent version should be usedIMPORTANT - Installation, Commissioning, Service & RepairThis appliance must be i

12.0 Changing Components4012.24 Secondary Heat Exchanger (Fig. 73)1. Drain the primary circuit2. Undo the four screws securing the right hand casepane

13.0 Illustrated Wiring Diagram41- brown- black- blue- redbrbkbr - green- green / yellow- whitegg/yw Optional TimersDomestic Hot Water Temperature Sen

14.0 Fault Finding42Carry out initial fault finding checks1. Check that gas, water and electrical supplies are available at the boiler. Electrical sup

4314.0 Fault FindingDomestic Hot Water - Follow operational sequencePrimary flow switch operatedFan runs at max speed.Pump runsTurn preheat control to

4414.0 Fault FindingTurn selector to neon illuminated.Turn Central Heatingthermostat to maximum.neon illuminated.Go to section ‘A’.neon flashingGo

14.0 Fault Finding45Burner output modulates untilset temperature is reached.Burner goes out.Fan stops.Pump continues to run for3 minutes. (room thermo

4614.0 Fault FindingFault Finding SolutionsIs there 230V at:Is there 230V at:Main terminals L and N Check electrical supply1.NOMain terminal fuseRepla

4714.0 Fault FindingCheck and correct if necessary1. Electrical and pressure tube connections2. Blockage of pressure tubes3. Restriction in flue4. Ven

4814.0 Fault FindingCheck and correct if necessary1. Flame sensing electrode and lead connections2. Flame sensing electrode positionFlame current shou

15.0 Short Parts List49Short Parts ListKey G.C. Description ManufacturersNo. No. Part No.22 Fan (105) 5112430Fan (80) 511262723 Pressure Switch (105)

1.0 Introduction51.1 Description1. The Baxi Combi Instant 80 HE or 105 HE is a fullyautomatic gas fired wall mounted condensing combinationboiler. It

16.0 Notes50

16.0 Notes51

Comp No5111807 - Iss 1 - 06/04BAXI POTTERTONA Trading Division of Baxi Heating UK LtdBrownedge Road Bamber Bridge Preston Lancashire PR5 6UPAfter Sale

2.0 General Layout62.1 Layout1. Air Pressure Switch2. Expansion Vessel & Pre-Heat Store3. Burner Manifold4. Automatic Air Vent5. DHW Plate Heat Ex

3.0 Appliance Operation7NOTE: All delay timers mentioned in 3.1 and 3.3 areoverridden by domestic hot water demand.3.1 Central Heating Mode (Fig. 2)1.

3.0 Appliance Operation83.3 Domestic Hot Water Mode (Fig. 4)1. Priority is given to the domestic hot water supply. Ademand at a tap or shower will ove

4.0 Technical Data94.1 Combi Instant 80 HETemperaturesC.H. Flow Temp (adjustable)35°C to 85°C max (± 5°C)D.H.W. Flow Temp 35°C to 65°C max (± 5°C)depe