Baxi Potterton G.C.No 47 393 21 manual Site Requirement, Ventilation of Compartments, Gas Supply

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Gas Service Cock

Fig. 10

Zone 2

Window

Recess

Zone 1

Zone 2

Zone 0

0.6 m

Window

Recess

Zone 2

Fig. A	In GB Only

		Ceiling
	Window Recess
	Zone 2	Outside Zones
		Outside Zones
Zone 1	Zone 2	2.25 m
Zone 1	Zone 2
Zone 0
	0.6 m

Fig. B

In GB Only

7.0Site Requirement

7.3Ventilation of Compartments

1.Where the appliance is installed in a cupboard or compartment, no air vents are required.

2.BS 5440: Part 2 refers to room sealed appliances installed in compartments. The appliance will run sufficiently cool without ventilation.

7.4Gas Supply

1.The gas installation should be in accordance with the relevant standards. In GB this is BS 6891. In IE this is the current edition of I.S. 813 “Domestic Gas Installations”.

2.The connection to the appliance is a 22mm copper tail located at the rear of the gas service cock (Fig. 10).

3.Ensure that the pipework from the meter to the appliance is of adequate size. Do not use pipes of a smaller diameter than the boiler gas connection (22mm).

7.5Electrical Supply

1.External wiring must be correctly earthed, polarised and in accordance with relevant regulations/rules. In GB this is the current I.E.E. Wiring Regulations. In IE reference should be made to the current edition of ETCI rules.

2.The mains supply is 230V ~ 50Hz fused at 3A.

NOTE: The method of connection to the electricity supply must facilitate complete electrical isolation of the appliance.

Connection may be via a fused double-pole isolator with a contact separation of at least 3mm in all poles and servicing the boiler and system controls only.

7.6Bath & Shower Rooms

1.If the boiler is fitted in a room containing a bath or shower and NOT FITTED with any optional integral timer or thermostat, it can be fitted in zone 2, (Figs. A & B shows zone dimensions for a bathtub. For other examples refer to the Current I.E.E. Wiring Regulations) reference must be made to the relevant requirements.

In GB this is the current I.E.E. Wiring Regulations and Building Regulations.

In IE reference should be made to the current edition of I.S.

813“Domestic Gas Installations” and the current ETCI rules.

16© Baxi Heating UK Ltd 2011

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Contents Installation & Service Instructions 0086 Installer Notification Guidelines Scheme Members onlyLegislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version Safe Manual Handling GeneralPreparation TechniqueContents Introduction Contents of PackDescription General Layout LayoutAppliance Operation Frost Protection ModePump Protection Technical Data Promax Combi 24, 28Dimensions and Fixings OrientationTap Rail 32.5 mm Condensate Drain 65 mmSystem Details InformationCentral Heating Circuit Bypass Expansion Vessel Central Heating only System Filling and Pressurising Fig Pressure Relief Valve Fig Showers Domestic Hot Water Circuit FigHard Water Areas Location Site RequirementsAt Least 1.5 7.2 Clearances Figs Site Requirement Ventilation of CompartmentsGas Supply Electrical SupplyCondensate Drain Flue Flue terminal guardEach fitting to aid assembly Flue OptionsHorizontal Flue Systems Horizontal FluesVertical Flues Twin & Vertical Flue Systems120mm Min ApartKey Accessory Size Code No Flue AccessoriesTelescopic Internal Flue Kit Twin Flue Connection Twin Flue Duct AdaptorAir Duct Connection Flue Duct Connection Boiler Adaptor Flue Dimensions For Roof TerminalsFlue Trim Terminal Guard FigPlume Displacement Kit Fig Plume DisplacementMetres Ring Adaptor 28/33 Determining Permissible LengthsExample 5121368General Fitting Notes 30mmElbow to allow the flue to be installed as shown 60Ø extension piece. It must be secured using twoUsing a suitable bit e.g mm, drill through Extension and outlet. Secure using two of the screwsInstallation Unpacking & Initial PreparationFlushing After considering the site requirementsFitting The Boiler Fitting the Pressure Relief Discharge Pipe FigCondensate Drain see section Tighten all the connectionsFitting The Flue Wall Thickness WasteFlue Elbow Ensure Elbow is fully Engaged into Boiler25mm Extension Cut End Inner Flue Support BracketEnsure Extension is fully engaged into Boiler Adaptor Preliminary Electrical Checks Making The Electrical ConnectionsTerminal Block Cover Cable Clamp Commissioning Commissioning the BoilerPressure Completion CompletionCase Front Panel Facia Panel Servicing 13 .1 Annual ServicingAnnual Servicing Inspection Case Front Panel Facia Panel Securing ScrewsBurner Sensing Electrode 10 ±1Viewing Window Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Fan Fig Venturi FigInjector Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorInsulation Fig Burner FigBurner Gasket Extension Piece Central Heating Temperature Sensor NTC Fig Safety Thermostat FigDHW Temperature Sensor NTC Fig Flue/Heat Exchanger Thermostat Sensor FigPump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Pressure Gauge Figs Hall Effect Sensor FigDiverter Valve Motor Unit & Assembly Fig Plate Heat Exchanger FigSelector Switch Fig 14.22 P.C.B. FigGas Valve Fig Throttle Adjustment ScrewExpansion Vessel Fig Setting the Gas Valve Setting the Gas Valve CO2 checkFlue Adaptor Test Point Plug Analyser Probe ThrottleIllustrated Wiring Diagram ElectricalShort Parts List Short Parts List306 302Initial Fault Finding Checks Fault FindingError Codes Error 133 flashing Go to section ‘A’ Turn the selector switch toReset position for 5 seconds Pump runsTurn selector switch to Error 133 flashing Go to section ‘I’Turn Domestic Hot Water Open DHW tap fullyPCB X3 connector terminals 3 Switch terminalFan jammed or faulty winding Replace PCB Replace waterCheck wiring Viewing Window Replace sensor or PCB E28Gas at burner Replace gas valveReplace PCB Is there 230V at Replace safety thermostatReplace sensor Page Page Condensing Boilers only Service Record Brooks House, Coventry Road, Warwick. CV34 4LL