Baxi Potterton 30 HE manual Gas at burner, PCB A1 connector has 230V AC, Replace gas valve

Page 51

E

Check and correct if necessary

1.Electrical and pressure tube connections

2.Blockage of pressure tubes

3.Restriction in flue

4.Venturi

16.0 Fault Finding

NO

 

Replace air pressure

 

 

switch

 

 

 

 

 

 

F

G

Gas at burner

NO

Ensure gas is on and purged

 

PCB - A1 connector has 230V AC

 

YES

 

Replace gas valve

 

across terminals 2 & 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

neon flashing

 

 

 

 

Turn selector switch

 

 

 

 

 

 

 

 

to ‘Reset’ position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace PCB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.Check the burner setting pressure of the

gas valve

(see Section 9.2 of Commissioning)

2.

Voltage at modulating coil of gas valve is:

YES

 

 

Max. burner press.approx 9V DC (13V DC LPG)

Replace gas valve

 

 

Min. burner press.approx 1V DC

 

 

 

 

 

 

 

 

Current at modulating coil of gas valve is:

 

 

 

 

(Use an instrument with average function for this

NO

 

 

measure)

Replace PCB

 

 

 

 

30 ÷ 230 mA DC (45 ÷ 310 mA DC LPG)

 

 

 

 

 

 

 

 

H

Check and correct if necessary

1.Ignition electrode and lead

2.Electrode connection

3.Spark gap and position

YES

230V at Main PCB - A1 connector across terminals 3 & 4. Check wiring

NO

YES

Replace PCB

Replace gas valve electrical plug & igniter assembly

© Baxi Heating UK Ltd 2007

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Contents Installation & Service Instructions Contents Scheme Members only Installer Notification GuidelinesImportant Installation, Commissioning, Service & Repair LegislationCodes of Practice, most recent version should be used Technique Safe Manual HandlingGeneral PreparationCase Front Panel Control Box Data Badge IntroductionDescription Optional ExtrasGeneral Layout Layout1211 30 31 32 Appliance Operation Central Heating Mode FigDomestic Hot Water Mode Fig Frost Protection ModePerforma 30 HE Technical DataDimensions and Fixings Bypass System DetailsInformation Central Heating CircuitPressure Relief Valve Fig System Filling and PressurisingDomestic Hot Water Circuit Fig ShowersHard Water Areas Site Requirements LocationClearances Figs Ventilation of Compartments Gas SupplyElectrical Supply Condensate Drain External termination via internalOr Door Plume Displacement KitFlue Built-in element such as a window frame. See BS 5440 PtThis bend is equivalent to 1 metre Flue OptionsHorizontal Flues Horizontal Flue Systems1m extension 45bend 25m 91.5bend Vertical Flues Twin PipeTwin & Vertical Flue Systems Metre for each 91.5 elbow Metre for each 45 elbowFlue Accessories Key Accessory Size5111079 Flue Duct Adaptor Air duct adaptorFor Twin Flue Systems fit the adaptors as follows Terminal Guard Fig Flue DimensionsFor Roof Terminals Flue TrimRing Bracket Metres 60Ø Exhaust Flue Pipe 60Ø Support Plume DisplacementPlume Displacement Kit b Elbow/Plume Outlet AssemblyDetermining Permissible Lengths Screw 30mmGeneral Fitting Notes Min metres Flue Trim SpigotPlume Outlet Elbow Preparing The Boiler InstallationInitial Preparation FlushingRemove the sealing caps from the boiler connections Fitting The BoilerCondensate Drain see section Pressure Relief Valve Discharge Pipe Wall PlateWall Thickness Flue Elbow Adaptor Fitting The FlueVertical Flue WasteY Flue Inner Flue Support Bracket Flue ElbowPreliminary Electrical Checks Making The Electrical ConnectionsCommissioning the Boiler Commissioning the BoilerPressure Test Point Sealing Screw Checking the Burner PressureCompletion CompletionCase Front Panel Facia Panel 13 .1 Annual Servicing Servicing the BoilerAnnual Servicing Pressure Switch Fig Changing ComponentsFan Figs 14.0 Changing Components Heat Exchanger FigBurner Fig Reassemble in reverse order Injectors FigElectrodes Fig Insulation FigGas Valve Fig Central Heating Temperature Sensor FigSafety Thermostat Fig DHW Temperature Sensor FigPump Head Only Fig Pump Complete FigAutomatic Air Vent Fig Pressure Gauge Figs Expansion Vessel FigCondensate Trap Fig 14.19 P.C.B. Fig Selector Switch FigPlate Heat Exchanger Fig Flow Regulator Figs Diverter Valve AssemblyFlue Overheat Thermostat Fig Secondary Heat Exchanger FigControl PCB Illustrated Wiring DiagramFault Finding Turn selector to neon illuminated Microswitch terminalsDiverter valve spindle Assembly faulty Domestic Hot Water Follow operational sequenceAcross terminals 5 Replace microswitch Check wiring PCB A4 connector Replace selector Terminals 4Replace pump PCB A4 connector terminals 3 Replace PCB PCB A2 connector, isGas at burner PCB A1 connector has 230V ACTurn selector switch To ‘Reset’ positionON/OFF/RESET selector when turned to ‘Reset’ position 154 Short Parts ListShort Parts List 131GAS Boiler Commissioning Checklist Service Interval Record Potterton
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30 HE specifications

The Baxi Potterton 30 HE is a popular choice among homeowners seeking an efficient and reliable boiler solution. Recognized for its compact design and advanced technologies, this boiler is ideal for various residential heating needs.

One of the standout features of the Baxi Potterton 30 HE is its high efficiency rating, which ensures lower energy consumption and reduced utility bills. With an impressive efficiency of up to 90%, this boiler operates at a much higher capacity compared to older models, making it both environmentally friendly and cost-effective. The 30 HE is particularly well-suited for medium to larger homes with a higher demand for hot water.

The Baxi Potterton 30 HE incorporates a range of innovative technologies aimed at enhancing performance and reliability. The automatic modulation function adjusts the boiler's output according to demand, ensuring that it only works as hard as necessary. This not only prolongs the lifespan of the unit but also maximizes comfort levels in the home.

Another feature of the 30 HE is its low noise operation. This boiler has been specifically designed to minimize sound, allowing it to operate quietly in the background without disturbing daily activities. This makes it an ideal choice for homes where noise can be a concern, particularly in open-plan living spaces.

The compact dimensions of the Baxi Potterton 30 HE make it easy to install in various locations, whether it be in a kitchen, utility room, or even a loft space. Its lightweight construction further simplifies the installation process, saving both time and labor costs.

In terms of user-friendliness, the boiler is equipped with an intuitive control panel that allows homeowners to easily adjust settings and monitor performance. This user-centric design ensures that even those who may not be technically inclined can manage their heating requirements with ease.

Safety features are also a priority in the design of the Baxi Potterton 30 HE. It includes built-in safety mechanisms such as frost protection and a burner pressure monitoring system, which work to prevent overheating and ensure optimal operation.

Overall, the Baxi Potterton 30 HE is an efficient, reliable, and user-friendly boiler that meets the heating demands of modern homes. Its blend of advanced technologies, compact size, and focus on safety make it a standout choice for homeowners seeking a high-performance heating solution.
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