14.22 P.C.B. Fig, Selector Switch Fig | Baxi Potterton 47-393-39

Baxi Potterton 47-393-39, 47-393-40, 47-393-41, 47-393-42 14.22 P.C.B. Fig, Selector Switch Fig

Page 49

Control Box Cover

Fig. 97

P.C.B.

Selector

Switch

Facia

Selector Switch Knob

Fig. 98

14.0Changing Components

14.22P.C.B. (Fig. 98)

1. Note the settings of the temperature control knobs, rotate them fully anticlockwise and carefully pull them off the drive pins.

2. Completely undo the screws securing the control box cover and release the cover retaining barbs from their slots. Disengage the rear of the cover from the control box hinge pin (Fig. 97).

3. Note the position of all plugs and wires on the P.C.B. and disconnect them.

	4.	Undo the securing screws and remove the P.C.B. Transfer
	the control knob drive pins to the new P.C.B. and turn them
	fully anticlockwise.
	5.	Reassemble in reverse order, ensuring that the
	temperature controllers are reset to their previous positions.
	14.23 Selector Switch (Fig. 98)
	1.	Note the setting of the selector switch knob and carefully
	pull it off the facia.
Drive Pins	2. Completely undo the screws securing the control box
	cover and release the cover retaining barbs from their slots.
	Disengage the rear of the cover from the control box hinge
	pin (Fig. 97).
	3.	Note the position of the electrical connections and the
	orientation of the switch. Remove the electrical connections.
	4.	Remove the screws securing the switch to the facia panel.
	5.	Fit the new switch, ensuring that it is correctly positioned
	and reassemble in reverse order.
Temperature Control	Knobs

Image 49

Contents

Installation & Service Instructions Potterton Titanium Natural GasScheme Members only Installer Notification GuidelinesLegislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version General Safe Manual HandlingPreparation TechniqueContents Introduction Contents of PackDescription General Layout Domestic Hot Water Mode Light DisplayLayout Expansion Vessel Automatic Air VentDomestic Hot Water Mode Fig Central Heating Mode FigFrost Protection Mode Appliance OperationTitanium 24, 28, 33 Technical DataOrientation Dimensions and FixingsTap Rail 32.5 mm Condensate Drain 65 mm 22mm 15mmInformation System DetailsCentral Heating Circuit BypassExpansion Vessel Central Heating only System Filling and Pressurising FigPressure Relief Valve Fig Showers Domestic Hot Water Circuit FigHard Water Areas Location Site RequirementsAt Least 1.5 7.2 Clearances Figs Ventilation of Compartments Site RequirementGas Supply Electrical SupplyCondensate Drain 500mm min 50mm perMinimum fall RunBoiler External runs & those InsulationFlue Flue Options Each fitting to aid assemblyHorizontal Flue Systems Horizontal FluesTwin & Vertical Flue Systems Vertical Flues120mm 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 For Roof Terminals Flue DimensionsFlue Trim Terminal Guard FigPlume Displacement Kit Fig Plume DisplacementElbow/Plume Outlet Assembly Ring BracketDetermining Permissible Lengths 28/33/40Example Example Flue Lengths OK30mm General Fitting Notes60Ø extension piece. It must be secured using two Elbow to allow the flue to be installed as shownUsing a suitable bit e.g mm, drill through Extension and outlet. Secure using two of the screwsUnpacking & Initial Preparation InstallationFlushing After considering the site requirementsFitting the Filling Loop Kit Fitting the Pressure Relief Discharge Pipe Fig Fitting The BoilerCondensate Drain see section Wall Thickness Flue Elbow Fitting The FlueEnsure Elbow is fully engaged into Boiler Adaptor Wall Thickness Waste Flue25mm Extension Cut End Inner Flue Support BracketEnsure Extension is fully engaged into Boiler Adaptor Preliminary Electrical Checks Making The Electrical ConnectionsCommissioning Selector Switch DisplayCommissioning the Boiler Screw Pump Automatic Air VentPressure Setting the Timer Completion CompletionCase Front Panel Facia Panel 13 .1 Annual Servicing ServicingAnnual Servicing Inspection Burner Sensing Electrode 10 ±1Viewing Window Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Venturi Fig Fan FigInjector Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorInsulation Fig Burner FigBurner Gasket Extension Piece Safety Thermostat Fig Central Heating Temperature Sensor NTC Fig DHW Temperature Sensor NTC Fig Flue/Heat Exchanger Thermostat Sensor FigPump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Hall Effect Sensor Fig Pressure Gauge FigsPlate Heat Exchanger Fig Diverter Valve Motor Unit & Assembly Fig14.22 P.C.B. Fig Selector Switch FigGas Valve Fig Throttle Adjustment ScrewExpansion Vessel Fig Setting the Gas Valve CO2 check Setting the Gas ValveFlue Adaptor Test Point Plug Analyser Probe ThrottleElectrical Illustrated Wiring DiagramShort Parts List Short Parts List306 302Initial Fault Finding Checks Fault FindingError Codes Go to section ‘A’ Turn the selector switch to Error 133 flashingReset position for 5 seconds Pump runsError 133 flashing Go to section ‘I’ Turn selector switch toTurn Domestic Hot Water Open DHW tap fullySwitch terminal PCB X3 connector terminals 3Fan jammed or faulty winding Replace PCB Replace waterReplace sensor or PCB E28 Check wiring Viewing WindowGas at burner Replace gas valveReplace PCB Is there 230V at Replace safety thermostatReplace sensor Page Page GAS Boiler System Commissioning Checklist Service Record Potterton

Baxi Potterton 47-393-39, 47-393-40, 47-393-41, 47-393-42 14.22 P.C.B. Fig, Selector Switch Fig

14.0Changing Components

14.22P.C.B. (Fig. 98)

14.23 Selector Switch (Fig. 98)

2. Completely undo the screws securing the control box

pin (Fig. 97).