Potthof & Co 24kw Commissioning the Boiler, Screw Pump Automatic Air Vent, Domestic Hot Water

Potthof & Co 24kw Twin Flue Duct Adaptor, Twin Flue Connection, Air Duct Connection Flue Duct Connection Boiler Adaptor Potthof & Co 33kw, 24kw, 28kw manual For Roof Terminals, Flue Dimensions, Flue Trim, Terminal Guard Fig, Flue Deflector Fig Potthof & Co 28kw, 24kw, 33kw manual Plume Displacement Kit Fig Potthof & Co 24kw, 33kw, 28kw manual 28/33, Determining Permissible Lengths, Example, Elbow, 5121368 Potthof & Co 33kw, 24kw, 28kw manual 50mm, General Fitting Notes, 30mm Potthof & Co 28kw Plume Outlet Elbow, General Fitting Notes, For aesthetic purposes it is permissible to route, Supplied Potthof & Co 24kw, 33kw Installation, Unpacking & Initial Preparation, Flushing, After considering the site requirements Potthof & Co 33kw, 24kw, 28kw manual Fitting the Filling Loop Kit Potthof & Co 28kw Fitting The Boiler, Fitting the Safety Pressure Relief Discharge Pipe Fig, Condensate Drain see section Potthof & Co 24kw, 33kw Fitting The Flue, Wall Thickness Flue Elbow, Ensure Elbow is fully engaged into Boiler Adaptor Potthof & Co 33kw, 24kw, 28kw manual Inner Flue Support Bracket, 25mm Extension Cut End Potthof & Co 28kw, 24kw Making The Electrical Connections, Preliminary Electrical Checks, Terminal Block Cover Cable Clamp Potthof & Co 24kw Commissioning the Boiler, Screw Pump Automatic Air Vent, Selector Switch Display, Domestic Hot Water Potthof & Co 33kw, 24kw, 28kw Check the Operational Working Gas Inlet Pressure, Temperature Control Selector Switch Display Potthof & Co 28kw, 24kw, 33kw manual Setting the Timer Potthof & Co 24kw, 33kw, 28kw manual Completion, Case Front Panel Facia Panel Potthof & Co 33kw, 24kw, 28kw manual 13 .1 Annual Servicing, Annual Servicing Inspection Potthof & Co 28kw, 24kw, 33kw manual Electrode Position, 10 ±1 Potthof & Co 24kw, 33kw, 28kw manual Changing Components, Igniter Fig, Spark and Sensing Electrodes Fig Potthof & Co 33kw, 24kw Fan Fig, Venturi Fig, Injector Fig, Gasket Venturi Injector Cover Gas Inlet Pipe Fan Collector Potthof & Co 28kw, 24kw, 33kw manual Burner Fig, Insulation Fig, Extension Piece Potthof & Co 24kw, 33kw, 28kw Flue/Heat Exchanger Thermostat Sensor Fig, Water Pressure Sensor Fig, Safety Thermostat Fig Potthof & Co 33kw, 24kw, 28kw manual Pump Head Only Fig, Pump Complete Fig, Automatic Air Vent Fig Potthof & Co 28kw, 24kw, 33kw manual Pressure Gauge Figs, Hall Effect Sensor Fig, Pressure Relief Valve Fig Potthof & Co 24kw, 33kw, 28kw manual Plate Heat Exchanger Fig, Diverter Valve Motor Unit & Assembly Fig Potthof & Co 33kw, 24kw, 28kw manual 14.22 P.C.B. Fig, Selector Switch Fig Potthof & Co 28kw, 24kw, 33kw manual Gas Valve Fig, Expansion Vessel Fig Potthof & Co 24kw, 33kw, 28kw manual Setting the Gas Valve CO2 check, Flue Adaptor Test Point Plug Analyser Probe Potthof & Co 33kw, 24kw, 28kw manual Electrical, Illustrated Wiring Diagram Potthof & Co 28kw, 24kw, 33kw manual Short Parts List, 426, 315316 311 404419 422 400 415, 421 420 503 504 Potthof & Co 24kw, 33kw, 28kw manual Initial Fault Finding Checks, Error Codes Potthof & Co 33kw, 24kw, 28kw Error 133 flashing, Pump runs, Heating circuit, Go to section ‘A’ Turn the selector switch to Potthof & Co 28kw Turn Domestic Hot Water, Open DHW tap fully, Close DHW tap, Burner modulates, Pump runs for 30 seconds Potthof & Co 24kw PCB X3 connector terminals 3, Switch terminal, Replace water, Fan jammed or faulty winding Replace PCB Potthof & Co 33kw Replace sensor or PCB E28, Gas at burner, Replace gas valve, Terminals 1, Check wiring Viewing Window Potthof & Co 28kw, 24kw, 33kw manual Replace safety thermostat, Replace PCB Is there 230V at, Replace sensor
Page 36

Screw

Pump

Automatic Air

Vent

Fig. 63

Pump

2

 

 

 

 

 

 

1

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

4

 

 

 

 

 

 

bar

 

 

 

 

 

 

Selector Switch

 

 

 

 

 

 

 

 

Display

Fig. 64

 

Pressure Gauge

 

 

 

 

 

 

 

 

 

 

 

 

2

 

1

12

 

 

 

 

 

3

 

 

11

 

 

 

 

 

4

 

 

 

10

Reset

 

2

 

5

 

 

 

9

 

 

 

PM

 

 

 

 

 

 

 

3

 

 

 

8

 

 

 

7

 

 

 

7

 

 

 

 

8

 

 

 

AM

 

 

0

4

9

 

 

0

5

 

 

bar

 

10

 

 

 

4

 

 

 

 

11

 

 

3

 

 

 

 

 

12

1

 

2

 

 

Central Heating

Domestic Hot Water

 

 

 

 

 

Temperature Control

Temperature Control

 

 

 

 

Fig. 65

11.0Commissioning

11.1Commissioning the Boiler

1.Reference should be made to BS:EN 12828 & 14336 when commissioning the boiler.

2.At the time of commissioning, complete all relevant sections of the Benchmark Checklist at the rear of this publications.

3.Open the mains water supply to the boiler.

4.Open all hot water taps to purge the DHW system.

5.Ensure that the filling loop is connected and open, then open the heating flow and return valves on the boiler.

6.Open the screw on the automatic air vent on the pump body (Fig. 63).

7.The system must be flushed in accordance with BS 7593 (see Section 6.2) and the flushing agent manufacturers instructions.

8.Pressurise the system to 1.5 bar (Fig. 64) then close and disconnect the filling loop.

9.Turn the gas supply on and purge according to in GB BS 6891 and in IE I.S. 813 “Domestic Gas Installations”.

10.Test for gas tightness.

11.Hinge the facia panel upwards and refit the case front panel. Tighten the securing screws.

IMPORTANT: The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate. No measurement of the combustion is necessary. Do not adjust the air/gas ratio valve.

12. Having checked:

•That the boiler has been installed in accordance with these instructions.

•The integrity of the flue system and the flue seals.

•The integrity of the boiler combustion circuit and the relevant seals.

Proceed to put the boiler into operation as follows:

36© Baxi Heating UK Ltd 2012

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Contents Installation & Service Instructions Natural Gas Benchmark SchemeInstaller Notification Guidelines Scheme Members onlyImportant Installation, Commissioning, Service & Repair LegislationCodes of Practice refer to the most recent version Safe Manual Handling GeneralPreparation TechniqueContents Contents of Pack IntroductionDescription General Layout LayoutExpansion Vessel Automatic Air Vent Circulation Pump Drain Off PointCentral Heating Mode Fig Domestic Hot Water Mode FigFrost Protection Mode Appliance OperationTechnical Data Gold Combi 24, 28 & 33 HE aDimensions and Fixings System Details InformationCentral Heating Circuit BypassSafety Pressure Relief Valve Fig System Filling and Pressurising FigExpansion Vessel Central Heating only Domestic Hot Water Circuit Fig ShowersHard Water Areas Site Requirements LocationClearances Figs At leastSite Requirement Ventilation of CompartmentsGas Supply Electrical SupplyPer Pipe run Minimum FallPer Metre RunMinimum Fall 50mm per500mm min Run Minimum fallPlume Displacement Kit FlueBelow windows or openings on pitched roofs 2000 Likely flue positions requiring a flue terminal guardFlue Options Total equivalent length = +B+C+2x90BendsTotal Equivalent Length = +B+C+1x90Bend Flue Accessories Key Accessory Size Code NoTelescopic Flue inc. elbow Twin Flue Duct Adaptor Twin Flue ConnectionAir Duct Connection Flue Duct Connection Boiler Adaptor Flue Dimensions For Roof TerminalsFlue Trim Terminal Guard FigPlume Displacement Plume Displacement Kit Fig28/33 Determining Permissible LengthsExample Elbow50mm General Fitting Notes30mm Elbow 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 Filling Loop Kit Fitting the Safety Pressure Relief Discharge Pipe Fig Fitting The BoilerCondensate Drain see section Tighten all the connectionsFitting The Flue Wall Thickness Flue ElbowEnsure Elbow is fully engaged into Boiler Adaptor Wall Thickness Waste FlueInner Flue Support Bracket 25mm Extension Cut EndEnsure Extension is fully engaged into Boiler Adaptor Making The Electrical Connections Preliminary Electrical ChecksTerminal Block Cover Cable Clamp Selector Switch Display CommissioningCommissioning the Boiler Screw Pump Automatic Air VentTemperature Control Selector Switch Display Temperature Control Gas Pressure Test Point Gas ValveCheck the Operational Working Gas Inlet Pressure It is necessary to set the boiler to ‘Calibration Mode’Setting the Timer Completion CompletionCase Front Panel Facia Panel Servicing 13 .1 Annual ServicingAnnual Servicing Inspection Electrode Position 10 ±1Changing Components Igniter FigSpark and Sensing Electrodes Fig Fan Fig Venturi FigInjector Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorBurner Fig Insulation FigExtension Piece Central Heating Temperature Sensor NTC Fig Safety Thermostat FigDHW Temperature Sensor NTC Fig Flue/Heat Exchanger Thermostat Sensor FigPump Head Only Fig Pump Complete FigAutomatic Air Vent Fig Pressure Gauge Figs Hall Effect Sensor FigPressure Relief Valve Fig Diverter Valve Motor Unit & Assembly Fig Plate Heat Exchanger FigSelector Switch Fig 14.22 P.C.B. FigGas Valve Fig Expansion Vessel FigSetting the Gas Valve Setting the Gas Valve CO2 checkFlue Adaptor Test Point Plug Analyser Probe CO2 should be 8.4% ± Reduce CO2Illustrated Wiring Diagram ElectricalShort Parts List Short Parts List426 315316 311 404419 422 400 415Fault Finding Initial Fault Finding ChecksError Codes Error 133 flashing Go to section ‘A’ Turn the selector switch toReset position for 5 seconds Pump runsError 133 flashing Go to section ‘I’ Turn Domestic Hot WaterOpen DHW tap fully Close DHW tapPCB 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 safety thermostat Replace PCB Is there 230V atReplace sensor Pages for Notes Pages for Notes GAS Boiler System Commissioning Checklist Service Record Potterton
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