Baxi 80 HE Service Manual

© Baxi Heating UK Ltd 2006Baxi 50 HE PlusBaxi 80 HE PlusBaxi 100/2 HE PlusWall Mounted Powered Flue Condensing BoilersGas Fired Central Heating UnitsT

Appliance Category CAT I 2H4.0 Technical Data10© Baxi Heating UK Ltd 2006HorizontalFlue Terminal Diameter 110mmDimensions Projection 150mmOutercase D

5.0 Dimensions and Fixings11© Baxi Heating UK Ltd 2006DIMENSIONSA 600mmB 320mmC 390mmD 125mm Ø Min.E 150mmF 125mmSIDE FLUE (left and right)For every 1

6.0 System Details12© Baxi Heating UK Ltd 20066.1 Water Circulating Systems1. The appliance is suitable for use with open vent fullypumped systems and

6.0 System Details13© Baxi Heating UK Ltd 20066.3 Pipework1. The sizes of flow and return pipes from the boilershould be determined by normal methods,

6.0 System Details14© Baxi Heating UK Ltd 20066.6 System ControlsThis boiler does not require a bypass.This boiler does not require a permanent live.T

6.0 System Details15© Baxi Heating UK Ltd 20066.7 Sealed Systems (Fig. 13)1. SAFETY VALVE - A safety valve complying with therequirements of BS 6750 P

7.0 Site Requirements16© Baxi Heating UK Ltd 20067.1 LocationNOTE: Due to the high efficiency of the boiler aplume of water vapour will be discharged

7.0 Site Requirements17© Baxi Heating UK Ltd 20067.3 Clearances (Figs. 15 &16)1. A flat vertical area is required for the installation of theboile

7.0 Site Requirements18© Baxi Heating UK Ltd 20067.6 Condensate DrainFAILURE TO INSTALL THE CONDENSATEDISCHARGE PIPEWORK CORRECTLY WILL AFFECTTHE RELI

7.0 Site Requirements19© Baxi Heating UK Ltd 20067.7 FlueNOTE: Due to the high efficiency of the boiler a plumeof water vapour will be discharged from

2© Baxi Heating UK Ltd 2006Natural GasBaxi 50 HE PlusG.C.No41 077 41Baxi 80 HE PlusG.C.No41 077 42Baxi 100/2 HE PlusG.C.No41 075 34 This product has

7.0 Site Requirements20© Baxi Heating UK Ltd 2006Key Accessory Size Baxi CodeNumberConcentric Flue System 110mm diameterA Horizontal flue kit 850mm 23

7.0 Site Requirements21© Baxi Heating UK Ltd 20067.9 Plume Displacement KitNOTE: Please read this section in conjunction withthe instructions supplied

7.0 Site Requirements22© Baxi Heating UK Ltd 20067.10 Flue DimensionsSee Section 2.2. The standard horizontal flue kit allowsfor flue lengths between

8.0 Installation23© Baxi Heating UK Ltd 2006Check Site Requirements (section 7) beforecommencing.8.1 Initial PreparationThe gas supply, gas type and p

8.0 Installation24© Baxi Heating UK Ltd 20068.2 Preparing The Boiler1. Remove the outer carton.2. Remove the internal packaging.3. Lift the outercase

8.0 Installation25© Baxi Heating UK Ltd 20068.3 Fitting The Boiler (Fig. 24)1. Remove the screw and retaining bracket from the wallplate spring clip.2

8.0 Installation26© Baxi Heating UK Ltd 20068.6 Making the Gas Connection1. Connect the gas supply to the G1/2(1/2in BSPTInternal) gas tap. This is lo

8.0 Installation27© Baxi Heating UK Ltd 20068.7 Fitting the Flue (Cont)6. Ensure the inner flue support bracket is positioned inthe flue (Fig. 28).7.

8.0 Installation28© Baxi Heating UK Ltd 20068.8 Making The Electrical ConnectionsWARNING: This appliance must be earthed1. The electrical connections

9.0 Electrical29© Baxi Heating UK Ltd 20069.1 Schematic Wiring DiagramKey To Wiring Colours b - Bluebk - Blackw - Whitebr - Browngy - Greyr - Redg - G

Installer Notification Guidelines3© Baxi Heating UK Ltd 2006Choose BuildingRegulations NotificationRouteContact your relevant LocalAuthority Building

9.0 Electrical30© Baxi Heating UK Ltd 2006Wiring Keyb - Bluebk - Blackbr - Brownr - Redw - Whiteg/y - Green/Yellowg - Greengy - Greyop - Opaquey - Yel

10.0 Commissioning the Boiler31© Baxi Heating UK Ltd 200610.1 Commissioning the Boiler1. Reference should be made to BS 5449 Section 5 whencommissioni

11.0 Fitting the Outer Case32© Baxi Heating UK Ltd 200611.1 Fitting The Outer Case1. Position the outercase over the boiler engaging thelugs in the si

12.0 Servicing the Boiler33© Baxi Heating UK Ltd 200612.1 Annual ServicingIMPORTANT: When servicing ensure that both the gasand electrical supplies to

12.0 Servicing the Boiler34© Baxi Heating UK Ltd 200612.1 Annual Servicing (Cont)10. To clean the heat exchanger and burner proceed asfollows:a) Disco

13.0 Changing Components35© Baxi Heating UK Ltd 200613.1 Changing ComponentsIMPORTANT: When changing components ensurethat both the gas and electrical

13.0 Changing Components36© Baxi Heating UK Ltd 200613.3 Flowswitch (Fig. 47)1. Drain the boiler (see Section 13.1 paragraph 2 & 3).2. Remove the

13.0 Changing Components37© Baxi Heating UK Ltd 200613.4 PCB (Figs. 48 & 49)WARNING: The PCB Control and FanAssembly are 325 Vdc. Isolate at suppl

13.0 Changing Components38© Baxi Heating UK Ltd 2006The fan and venturi, gas valve, injector pipe,condensate trap, fan protection sensor, spark andsen

13.0 Changing Components39© Baxi Heating UK Ltd 2006The removal of the fan is necessary to enable thechanging of the injector pipe, condensate trap an

Legislation4© Baxi Heating UK Ltd 2006This company declare that no substances harmful tohealth are contained in the appliance or used duringappliance

13.0 Changing Components40© Baxi Heating UK Ltd 2006The burner and heat exchanger can be changed afterremoval of the combustion box door. To change th

13.0 Changing Components41© Baxi Heating UK Ltd 2006Combustion Box BaseCentral Insulation PanelSupport BracketBurner13.12 Heat Exchanger Lower Insulat

14.0 Short Parts List42© Baxi Heating UK Ltd 2006Short Parts ListKey G.C. Description ManufacturersNo. No. Part No.A E06 058 Flow TemperatureThermisto

15.0 Fault Finding43© Baxi Heating UK Ltd 2006LowHighResetONMains OnLED Light(Green)Boiler OnLED Light(Green)LockoutLED Light(Red)LightsOff Off Off

15.0 Fault Finding44© Baxi Heating UK Ltd 2006No Switched Live toboiler. Check SystemsControls and SystemWiring.240V at B ?Check wiring fromterminal b

15.0 Fault Finding45© Baxi Heating UK Ltd 2006DRY-FIRENOFill system with water andbleed out all air.Replace PCB.YESNOYESNOIs the system full of water

15.0 Fault Finding46© Baxi Heating UK Ltd 2006IGNITION LOCKOUTYESIs there gas at gas valve inlet?Check isolation valve andgas supply.YESNOReset Lockou

15.0 Fault Finding47© Baxi Heating UK Ltd 2006OVERHEAT LOCKOUTReplace Stat.Replace Stat.Wiring from PCB tothermostats faulty.YESNOYESNONODisconnectbla

15.0 Fault Finding48© Baxi Heating UK Ltd 2006FAN LOCKOUTRectify wiring.NOYESUnplug3-way PCB connector& unplug fan. Is therecontinuity from N to O

15.0 Fault Finding49© Baxi Heating UK Ltd 2006THERMISTORReplace thermistor.Wiring from PCB tothermistor faulty.YESNONOYESReplace PCB.Unplugthermistor,

Safe Manual Handling5© Baxi Heating UK Ltd 2006GeneralThe following advice should be adhered to, from when first handling the boiler to the final stag

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

© Baxi Heating UK Ltd 2006Comp No5113638 - Iss 4 - 10/06BAXIA Trading Division of Baxi Heating UK LtdBrooks House, Coventry Road, Warwick. CV34 4LLAft

6© Baxi Heating UK Ltd 20061.0 Introduction 72.0 General Layout 83.0 Appliance Operation 94.0 Technical Data 105.0 Dimensions and Fixings 116.0 System

1.1 Description1. The Baxi 50 HE Plus, 80 HE Plus and100/2 HE Plus aregas fired room sealed fan assisted condensing centralheating boilers.2. The maxi

2.0 General Layout8© Baxi Heating UK Ltd 20062.1 Layout (Figs. 3,4,5 & 6)1. Wall Plate2. Flue Elbow3. Heat Exchanger4. Burner5. Air Box6. Fan Prot

3.0 Appliance Operation9© Baxi Heating UK Ltd 20063.11. Switched Live On: When the switched live switcheson if the flow temperature is less than the s