Baxi Potterton 30 HE manual Diverter Valve Assembly, Flow Regulator Figs

Page 45

Microswitch / Bracket

Diaphragm

Heating Flow

Pipe

Central Heating Pressure

Differential Valve

Sensing Pipe

By-pass Pipe

Spring Clip

14.0Changing Components

14.22Diverter Valve Assembly (Cont)

Pressure Differential Valve (Fig. 84)

1.

Remove the pressure differential valve as described

above.

2.

From the brass diverter manifold undo the nut on

the heating flow pipe. Remove the screw securing the

diverter manifold to the appliance lower bracket.

3.

Disconnect the pressure gauge capillary from the

diverter manifold and remove the two wires from the

microswitch.

4.

Prise off the spring clip securing the by-pass pipe to

the diverter manifold and disconnect the sensing pipe.

 

Diverter Manifold

Fig. 84

Pressure Gauge

 

 

Capillary

Cartridge

Body

Filter Gauze

Fig. 85

Flow

Fig. 86

Regulator

 

 

Venturi

 

Inlet/Return Manifold

5.

Ease the diverter manifold out of the plate heat

exchanger manifold. Remove the assembly from the

appliance.

6.

Undo the screw securing the microswitch bracket

to the valve body. The sensor may now be dismantled

to examine the diaphragm.

7.

To examine the diaphragm hold the assembly

securely and carefully remove the four screws. The

diaphragm spring will force the two halves of the valve

apart.

8.

Carefully examine the diaphragm and replace it if

there is any damage.

9.

Reassemble in reverse order.

CH Pressure Microswitch (Fig. 84)

1.Remove the two wires from the Pressure microswitch.

2.Undo the screw securing the microswitch bracket to the valve body.

3.Reassemble in reverse order.

14.23Flow Regulator (Figs. 85 & 86)

1.Undo the filter cartridge from the inlet/return manifold.

2.Unscrew the venturi and remove the flow regulator.

3.Check the cleanliness of the filter gauze, rinsing thoroughly in clean water as necessary. Fit the new flow regulator and reassemble in reverse order.

© 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 General Safe Manual HandlingPreparation TechniqueDescription IntroductionOptional Extras Case Front Panel Control Box Data BadgeGeneral Layout Layout1211 30 31 32 Domestic Hot Water Mode Fig Central Heating Mode FigFrost Protection Mode Appliance OperationPerforma 30 HE Technical DataDimensions and Fixings Information System DetailsCentral Heating Circuit BypassPressure 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 internalFlue Plume Displacement KitBuilt-in element such as a window frame. See BS 5440 Pt Or DoorHorizontal Flues Flue OptionsHorizontal Flue Systems This bend is equivalent to 1 metreTwin & Vertical Flue Systems Vertical Flues Twin PipeMetre for each 91.5 elbow Metre for each 45 elbow 1m extension 45bend 25m 91.5bendFlue Accessories Key Accessory Size5111079 Flue Duct Adaptor Air duct adaptorFor Twin Flue Systems fit the adaptors as follows For Roof Terminals Flue DimensionsFlue Trim Terminal Guard FigPlume Displacement Kit b Plume DisplacementElbow/Plume Outlet Assembly Ring Bracket Metres 60Ø Exhaust Flue Pipe 60Ø SupportDetermining Permissible Lengths General Fitting Notes 30mmMin metres Flue Trim Spigot ScrewPlume Outlet Elbow Initial Preparation InstallationFlushing Preparing The BoilerCondensate Drain see section Fitting The BoilerPressure Relief Valve Discharge Pipe Wall Plate Remove the sealing caps from the boiler connectionsWall 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 Electrodes Fig Injectors FigInsulation Fig Reassemble in reverse orderSafety Thermostat Fig Central Heating Temperature Sensor FigDHW Temperature Sensor Fig Gas Valve 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 Diverter valve spindle Assembly faulty Microswitch terminalsDomestic Hot Water Follow operational sequence Turn selector to neon illuminatedReplace pump PCB A4 connector terminals 3 Replace PCB Check wiring PCB A4 connector Replace selector Terminals 4PCB A2 connector, is Across terminals 5 Replace microswitchTurn selector switch PCB A1 connector has 230V ACTo ‘Reset’ position Gas at burnerON/OFF/RESET selector when turned to ‘Reset’ position Short Parts List Short Parts List131 154GAS 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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