Fan Fig, Venturi Fig, Injector Fig | Baxi Potterton Gold HE A Range

Fig. 83

Burner

Gasket

Venturi

Injector

Cover

Gas Inlet Pipe

Gas Inlet

Fan

Venturi

Injector

Collector

Fig. 82

Fig. 84

When fitting the venturi ensure that the arrow is pointing forward

14.0Changing Components

14.3Fan (Fig. 83)

1.Undo the nut on the gas inlet pipe to the venturi (Fig. 83) and pull the sensing pipe off the fan.

2.Disconnect the electrode leads, noting their position and disconnect the fan electrical plugs.

3.Undo the screws securing the collector to the cover (33 models) or extension piece (24 & 28 models).

4.Remove the collector and fan assembly, being careful to retain the injector in the venturi.

5.Undo the screws securing the fan to the venturi and fit the new fan, replacing the seal if necessary.

6.Examine the burner gasket and replace if necessary.

7.Reassemble in reverse order, ensuring that the injector is in place and the sensing pipe is connected to the fan.

14.4Venturi (Fig. 82)

1.Remove the collector and fan assembly as described in section 14.3.

2.Extract the injector from the venturi.

3.Undo the screws securing the fan to the venturi and the venturi to the collector.

IMPORTANT: When fitting the new venturi, ensure the arrows on it’s base point into the collector (Fig. 84).

4.Examine the seals and burner gasket, replace if necessary.

5.Reassemble in reverse order, ensuring that the injector is in place.

14.5Injector (Fig. 82)

1.Remove the collector and fan assembly as described in section 14.3.

2.Extract and replace the injector and reassemble in reverse order.

© Baxi Heating UK Ltd 2008

41

Image 41

Baxi Potterton Gold HE A Range manual Fan Fig, Venturi Fig, Injector Fig

Contents

Installation & Service Instructions BS-EN ISO 9001 Accredited Company Natural Gas Scheme Members only Installer Notification Guidelines Codes of Practice refer to the most recent version Important Installation, Commissioning, Service & RepairLegislation General Safe Manual HandlingPreparation Technique Contents Description Contents of PackIntroduction Layout General Layout Pump Protection Frost Protection ModeAppliance Operation Gold Combi 24, 28 & 33 HE a Technical Data Orientation Dimensions and FixingsFlue Ø 100mm Tap Rail 32.5 mm Condensate Drain 65 mm 22mm 15mm Information System DetailsCentral Heating Circuit Bypass Pressure Relief Valve Fig System Filling and Pressurising FigExpansion Vessel Central Heating only Hard Water Areas Domestic Hot Water Circuit FigShowers Clearances Figs Site RequirementsLocation Ventilation of Compartments Site RequirementGas Supply Electrical Supply Condensate Drain Flue terminal guard Flue Horizontal Flues Flue OptionsHorizontal Flue Systems This bend is equivalent to 1 metre Twin & Vertical Flue Systems Vertical Flues Twin PipeMetre for each 91.5 bend Metre for each 135 bend This bend is equivalent to 1 metre 5111079 Flue AccessoriesKey Accessory Size Code No For Twin Flue Systems fit the adaptors as follows Flue Duct AdaptorAir duct adaptor For Roof Terminals Flue DimensionsFlue Trim Flue Deflector Fig Metres Ring Adaptor Plume DisplacementPlume Displacement Kit Fig 28/33 Additional Accessories Elbow 5121369 Elbow Pair 5121370Determining Permissible Lengths Example General Fitting Notes Shown in . Complete the installation of the 60Ø30mm Exhaust, securing in the brackets Plume Outlet Elbow Flushing InstallationUnpacking & Initial Preparation Fitting the Filling Loop Loop and valves must be connected as shown in the diagram aDouble Check Valve Stop Valve Temporary Filling Loop Hose Fitting Cold Inlet Stop Valve Fitting the Pressure Relief Discharge Pipe Fig Fitting The BoilerCondensate Drain see section Tighten all the connections Wall Thickness Waste Fitting The FlueFlue Elbow Ensure Elbow is fully Engaged into Boiler Ensure Extension is Fully engaged into Boiler Adaptor Inner Flue Support BracketEnsure Flue is fully Engaged into Flue Elbow Preliminary Electrical Checks Making The Electrical ConnectionsTerminal Block Cover Cable Clamp Commissioning Selector Switch DisplayCommissioning the Boiler Heat Exchanger Automatic Air Vent Screw Pump Checking Temperature Control Setting the Timer Case Front Panel Facia Panel CompletionCompletion 13 .1 Annual Servicing Servicing Viewing Window Annual ServicingBurner Spark and Sensing Electrodes Fig Changing ComponentsIgniter Fig Venturi Fig Fan FigInjector Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan Collector Extension Piece Burner FigInsulation Fig Safety Thermostat Fig Central Heating Temperature Sensor NTC FigDHW Temperature Sensor NTC Fig Flue/Heat Exchanger Thermostat Sensor Fig Pump Head Only Fig Heat Exchanger Automatic Air Vent FigPump Complete Fig Automatic Air Vent Fig Hall Effect Sensor Fig Pressure Gauge Figs Plate Heat Exchanger Fig Diverter Valve Motor Unit & Assembly Figs 14.20 P.C.B. Fig Selector Switch FigCompletely undo the screws securing the control box Pin Fig Venturi Inlet Pipe Gas Valve FigExpansion Vessel Fig Checking the CO2 Temperature Control Selector Switch DisplayCombustion Check Electrical Illustrated Wiring Diagram Key Description Manufacturers Short Parts ListShort Parts List Error Codes Fault FindingInitial Fault Finding Checks Reset position for 5 seconds Error 133 flashingDisplay illuminates Pump runs Domestic Hot Water Follow operational sequence Error 110 flashingTurn Domestic Hot Water Open DHW tap fully Switch terminal PCB X3 connector terminals 3Fan jammed or faulty winding Replace PCB Is there 230V at Main terminals L and N Main terminal fuse Replace gas valve Gas at burnerTerminals 1 Ensure that the Hall Effect Sensor is in position Replace heat exchanger Replace safety thermostatReplace PCB Is there 230V at GAS Boiler Commissioning Checklist Service Interval Record UK Comp No 5116282 Iss 7 4/08 Brooks House, Coventry Road, Warwick. CV34 4LL