Baxi Potterton BBU 15 HE manual Siting the Boiler, Water Connections, Gas Connection

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Fixing Slot

Fig. 35

Condensate

Discharge (remove

plug before connection)

ReturnFlow

Fig. 36

3

N

Fig. 37

1 2

7.0Installation

7.3Siting the Boiler

IMPORTANT - This product should be lifted and handled by two people. Stooping should be avoided and protective equipment worn where necessary. Carrying

&lifting equipment should be used as required, e.g. when installing on another floor.

1.Lift the boiler from the packing base and place into the opening.

2.Align the boiler centrally as far back in the opening as possible, and ensure the distance between each side and the opening is equal. Check that the boiler is level.

3.Mark the hearth through two of the slots in the base (Fig. 35). Remove the boiler and drill the hearth. Insert suitable plugs. Replace the boiler & check the alignment within the opening. Secure the boiler with suitable screws.

7.4Water Connections

1.The boiler has one return and one flow connection. The flow is the upper connection. It is essential the flow and return pipes are connected correctly (Fig. 36).

7.5Gas Connection

1.Connection to the gas supply is a 15mm compression fitting on the gas cock. The gas supply pipe must be routed from the right hand side.

2.The positioning of the gas supply pipe must not restrict the servicing of the boiler or installation of the firefront.

7.6Electrical Connection

1.The boiler requires an electrical supply from the heating controls system.

WARNING: The appliance must be earthed.

The input cable for the appliance should be 0.75mm2 to IEC Code 227 (heat resistant). The system external controls and the boiler must be supplied by the same isolator. The boiler MUST NOT be connected to the

same supply as the firefront as their fuse ratings are different.

7.7Making the Electrical Connection

1.Take the 5 pin plug from the boiler fitting kit, remove the securing screws and hinge the cover open.

2.Route the mains inlet cable under the cable clamp and connect Permanent Live, Neutral &Earth to 3, N &

respectively. Ensure that the Earth lead is longest.

3.Connect the switched output from the system external control system to terminal 1.

4.Refit the cover, tighten the screws to secure the cable and connect the plug to the one on the boiler.

24© Baxi Heating UK Ltd 2009

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Contents
Baxi Bermuda BBU 15 HE 0086 Installer Notification Guidelines Scheme Members onlyImportant Installation, Commissioning, Service & Repair LegislationCodes of Practice, most recent version should be used Safe Manual Handling Contents Contents IntroductionDescription General Layout Layout FigFlue Kit 10m & 12.5m a Technical Data Bermuda HE Cbbu 15 HESystem Details Water Circulating SystemsTreatment of Water Circulating Systems There is a drain cock supplied in the plumbing kitPipework System ControlsStorage Systems Sealed Systems Figs , 7 Sealed Systems Site Requirements Builders Opening FigLocation Fireplace Opening & SurroundFlue No Horizontal Runs are PermittedVentilation Gas Supply FigElectrical Supply Fig Electrical Connection Gas ConnectionCondensate Drain General Condensate Disposal FigTotal volume of the sump is 1.5 litres Condensate DisposalCondensate Pump Operation From Boiler 500mm MinBoiler Internal Wiring Boiler Internal Illustrated Wiring DiagramInstallation Initial PreparationFlue System Barb ‘C’ Clip Air Cowl Air Duct Collar Ribs Terminal Cap Siting the Boiler Water ConnectionsGas Connection Electrical ConnectionCompletion & Commissioning CompletionCommissioning the Boiler Test Point Annual Servicing Annual ServicingAnnual Servicing Inspection Electrode Assembly Fig Changing ComponentsChanging Components Spark Generator FigFan Fig Burner FigSpark Generator Plug Electrode Fan Injector Burner Spark Generator Plug Gas Feed Pipe InjectorInjector Gas Valve Earth Wire Gas Valve FigSafety Thermostat Fig Float Switches FigPCB Fig NTC FigSetting the Gas Valve Setting the Gas Valve CO2 checkFlue Sampling Point Display Control Knobs Fault Finding Initial Fault Finding ChecksError Codes Error 110 flashing Burner lights Press the Service ResetSwitch for 5 seconds Go to section ‘A’Clean condensate drain system X2 connector, is 230V AC acrossTerminals 1 Voltage at PCB X2 connector is Spark gap and position Check wiringReplace Safety Thermostat Replace flame sensing electrode13.0 Short Parts List Short Parts ListPage Page Page GAS Boiler System Commissioning Checklist Service Record Date Energy Efficiency Checklist completed?Warranty & Service Serial Number Date of InstallationInstaller Details name, address and contact numbers After Sales Service 0844 871