Manuals / Baxi Potterton / Household Appliance / Boiler

Baxi Potterton Condensing Combination Boiler manual Introduction, Description, Optional Extras

Models: Condensing Combination Boiler

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Case Front Panel

Control Box

Facia Door

Fig. 1	Data Badge

Information Label

1.0Introduction

1.1Description

1.The Potterton Heatmax Combi HE is a fully automatic gas fired wall mounted condensing combination boiler. It is room sealed and fan assisted, and will serve central heating and mains fed domestic hot water.

2.The boiler is set to give a maximum output of :-

24 models -	24 kW DHW
	21 kW CH (Condensing)
28 models -	28 kW DHW
	25.9 kW CH (Condensing)
33 models -	33 kW DHW

30.3kW CH (Condensing)

3.It is designed for use on Natural Gas (G20).

4.The boiler is suitable for use only on fully pumped sealed heating systems. Priority is given to domestic hot water.

5.The boiler data badge gives details of the model, serial number and Gas Council number and is situated on the inner door panel or the control box. It is visible when the case front panel is removed (Fig. 1).

6.The boiler model name and serial number are also shown on the information label on the back of the facia door. This is for user reference.

7.The boiler is intended to be installed in residential / commercial / light industrial E.M.C. environments on a governed meter supply only.

8.The boiler must be installed with one of the purpose designed flues such as the standard horizontal flue kit, part no. 5118489.

9.All systems must be thoroughly flushed and treated with inhibitor (see section 6.2).

IMPORTANT: If the boiler is installed at a high point in the system it is strongly recommended that Automatic Air Vent Kit 720004701 is fitted.

1.2Optional Extras

Integral timers, RF room thermostats, wall ‘stand off’ kits etc. are available as optional extras.

1.3Contents of Pack

The pack contains:-

•Boiler

•Wall Plate (including taps)

•Set of Pipe Connections

•Template & ‘Quick Fit’ Guide

•Literature Pack

•Filling Loop

© Baxi Heating UK Ltd 2012

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Baxi Potterton Condensing Combination Boiler manual Introduction, Description, Optional Extras, Contents of Pack

Contents

Installation & Service Instructions 0086 Scheme Members only Installer Notification GuidelinesLegislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version Technique Safe Manual HandlingGeneral PreparationContents Optional Extras Contents of PackIntroduction DescriptionLayout General LayoutAppliance Operation Central Heating Mode FigDomestic Hot Water Mode Fig Frost Protection ModeHeatmax Combi 24, 28 Technical DataDimensions and Fixings Bypass System DetailsInformation Central Heating CircuitSystem Filling and Pressurising Safety Pressure Relief Valve FigExpansion Vessel Central Heating only Showers Domestic Hot Water Circuit FigHard Water Areas Location Site RequirementsClearances Figs Electrical Supply Site RequirementVentilation of Compartments Gas SupplyCondensate Drain 500mm min 50mm perMinimum fall RunLikely flue positions requiring a flue terminal guard Plume Displacement KitFlue Below windows or openings on pitched roofs 2000This bend is equivalent to 1 metre Flue OptionsHorizontal Flues Horizontal Flue SystemsMetre for each 91.5 bend Metre for each 135 bend Vertical FluesVertical Flue Systems Roof Terminal This bend is equivalent to 1 metreKey Accessory Size Code No Flue AccessoriesTerminal Guard Fig Flue DimensionsFor Roof Terminals Flue TrimPlume Displacement Kit Fig Plume Displacement5121368 28/33Determining Permissible Lengths Example30mm General Fitting NotesExtension and outlet. Secure using two of the screws Elbow to allow the flue to be installed as shown60Ø extension piece. It must be secured using two Using a suitable bit e.g mm, drill throughAfter considering the site requirements InstallationUnpacking & Initial Preparation FlushingCondensate Drain see section Fitting The BoilerWasteY Flue Fitting The FlueWall Thickness Flue Elbow Ensure Elbow is fully engaged into Boiler Adaptor25mm 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 the Boiler CommissioningCheck the Operational Working Gas Inlet Pressure Selector Switch DisplayGas Valve Completion CompletionCase Front Panel Facia Panel Annual Servicing ServicingAnnual Servicing Inspection Electrode Leads Venturi Injector Fan, Collector and Cover Assembly Threaded BushRestricter Filter Hall Effect Sensor Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan Collector Fan FigVenturi Fig Injector FigInsulation Fig Burner FigFlue/Heat Exchanger Thermostat Sensor Fig Central Heating Temperature Sensor NTC FigSafety Thermostat Fig DHW Temperature Sensor NTC 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 FigExpansion Vessel Fig Gas Valve FigSetting the Gas Valve CO2 check Setting the Gas ValveElectrical Illustrated Wiring Diagram302 Short Parts ListShort Parts List 306Initial Fault Finding Checks Fault FindingError Codes Pump runs Error 133 flashingGo to section ‘A’ Turn the selector switch to Reset position for 5 secondsClose DHW tap Error 133 flashing Go to section ‘I’Turn Domestic Hot Water Open DHW tap fullyReplace water PCB X3 connector terminals 3Switch terminal Fan jammed or faulty winding Replace PCBTerminals 1 Replace sensor or PCB E28Gas at burner Replace gas valveReplace PCB Is there 230V at Replace safety thermostatReplace sensor Page GAS Boiler System Commissioning Checklist Service Record Brooks House, Coventry Road, Warwick. CV34 4LL