Baxi Potterton 24 Eco HE manual Operation sequence

Page 42

Domestic Hot Water - Follow operational sequence

15.0 FAULT FINDING

Turn selector to neon illuminated

YES

Turn thermostat to

max. Open DHW tap fully. DHW flow switch operated

YES

Primary water is diverted from CH system to DHW heat exchanger and flow microswitch operated

YES

Pump runs

YES

Primary flow switch

operated

YES

Fan runs at max speed

YES

NO

NO

NO

NO

NO

NO

Go to section ‘A’

Is mains water

filter and differential

assembly clean?

YES

DHW flow rate more than

2.5l/min.

Continuity across DHW

flow microswitch

terminals and PCB - M1 connector terminals 13 & 14 (terminals 12-14 open)

Go to section ‘B’

Go to section ‘C’

Turn the selector switch to the ‘Reset’ position and hold for at least 2 seconds. If regular resetting is required, or appliance still does not operate investigation is necessary

YES

NO

YES

Replace diaphragm

YES

DHW flow valve

diaphragm damaged

NO

DHW flow valve rod

obstructed

Replace DHW flow

microswitch

Replace PCB

Go to section ‘J’, ‘L’ & ‘D’

Air pressure switch

proved

YES

Spark at ignition

electrodes for up to 10

seconds

YES

NO

NO

Go to section ‘E’

neon illuminated

NO

Replace PCB

YES

Turn the selector to the reset position. If the light does not extinguish go to section H & K

Burner on

neon

NO

illuminated

 

 

 

 

 

 

YES

 

 

 

YES

 

 

 

Burner extinguishes

after 10 seconds

 

 

 

 

NO

 

 

 

 

 

NO

Burner output modulates

to maintain temperature

 

set at thermostat

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

Close DHW tap

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

DHW flow valve

 

senses no flow.

NO

Primary water diverted to

 

 

CH system. DHW flow

 

switch released off

 

 

 

 

YES

 

 

 

NO

 

 

 

 

 

 

Burner goes out

 

 

 

 

 

 

Go to section ‘F’

Go to section ‘I’

Reduce the DHW flow rate. If burner does not modulate clean temperature sensor and DHW heat exchanger. If modulation does not occur go to section ‘G’

Diverter valve spindle

assembly faulty

Fan stops

YES

 

YES

Operation sequence

Pump stops

 

 

correct

 

 

 

 

 

 

 

42

Publication No. 5111811

Page 41 Page 43
Image 42
Page 41 Page 43
Contents Performa Contents Installer Notification Guidelines Scheme Members onlyImportant Installation, Commissioning, Service & Repair LegislationIntroduction DescriptionOptional Extras General Layout LayoutAppliance Operation Central Heating Mode FigDomestic Hot Water Mode Fig Central Heating Circuit KeyTechnical Data 95mm 65mm Dimensions and FixingsGas Inlet 68mm Left Hand Side 130mm BoilerCentral Heating Circuit System DetailsInformation BypassSystem Filling and Pressurising Expansion Vessel Central Heating onlyPressure Relief Valve Fig Domestic Hot Water Circuit ShowersHard Water Areas Site Requirements LocationVentilation of Compartments Gas SupplyElectrical Supply Condensate Drain Flue Likely flue positions requiring Flue terminal guardTerminal Guard Fig Flue DimensionsFlue Trim Maximum permissible flue length is 4 metresHorizontal Flues Vertical Twin Pipe Flue OptionsFlushing InstallationInitial Preparation Preparing The BoilerFitting The Boiler Fitting the Pressure Relief Discharge Pipe FigCondensate Drain see section Fitting The FlueVertical Flue Making The Electrical Connections Functional Flow DiagramKey to Wiring Preliminary Electrical ChecksCommissioning Commissioning the BoilerAdjusting the Pressure Fig Checking the Burner PressureCompletion CompletionServicing the Boiler 11 .1 Annual ServicingAnnual Servicing W. Filters FigInlet / Return Manifold Pressure Switch Fig Changing ComponentsHeat Exchanger Fig Burner FigInjectors Fig Electrodes FigInsulation Fig Temperature Sensor Fig Safety Thermostat FigGas Valve Fig Pump Head Only Figs Pump Complete FigsAutomatic Air Vent Fig Pressure Gauge Figs Expansion Vessel FigCondensate Trap Fig Selector Switch Fig 12.18 P.C.B. FigSeals Diverter Valve Assembly FigPlate Heat Exchanger Fig DHW Pressure Differential Valve FigFlow Regulator Figs Diverter Valve AssemblyCH Pressure Microswitch Fig CH Pressure Differential Valve FigSecondary Heat Exchanger Fig Flue Overheat Thermostat FigIllustrated Wiring Diagram ElectricalControl PCB Short Parts List Short Parts ListFault Finding Carry out initial fault finding checksOperation sequence Correct Operation sequence Fault Finding Solutions Sections a to E Fault Finding PCB GAS Boiler Commissioning Checklist Service 5 Date Service 1 DateService 3 Date Service 7 DateTechnical GB Service GBGeneral Enquiries GB Literature Request GB

24 Eco HE specifications

The Baxi Potterton 24 Eco HE is a highly efficient and reliable boiler designed to meet the heating and hot water needs of modern homes. This wall-mounted combination boiler is particularly suited for smaller properties, providing a compact solution without compromising on performance.

One of the standout features of the Baxi Potterton 24 Eco HE is its high efficiency rating. It boasts an impressive ErP A-rating for both heating and hot water, which indicates that it is designed to minimize energy consumption and reduce utility bills. The condensing technology employed in this boiler recovers heat from flue gases that would otherwise be lost, optimizing the overall energy use and enhancing its eco-friendly credentials.

The Baxi Potterton 24 Eco HE also incorporates an intelligent control system, allowing homeowners to manage their heating settings more effectively. The built-in digital display is user-friendly, providing easy access to information such as system pressure and temperature settings. This feature facilitates easy programming of heating schedules, helping to ensure comfort while optimizing energy use.

Another characteristic of the Baxi Potterton 24 Eco HE is its impressive hot water output. With a hot water flow rate of up to 10.2 liters per minute, it ensures that showers and taps can be used simultaneously without running out of hot water. This makes it an excellent choice for families or households where demand for hot water is high.

Furthermore, the compact design of the Baxi Potterton 24 Eco HE allows for flexible installation options. Its reduced size means it can fit easily in kitchen cupboards or other confined spaces, making it ideal for homes where space is at a premium.

The boiler is equipped with a low-energy pump and a built-in frost protection feature, ensuring reliable operation even in colder climates. Additionally, its quiet operation contributes to a more comfortable living environment.

In summary, the Baxi Potterton 24 Eco HE is an efficient, compact, and powerful boiler that caters to the demands of modern living. With features such as high efficiency, intelligent controls, impressive hot water delivery, and flexible installation options, it stands out as a top choice for homeowners seeking a dependable and eco-friendly heating solution. This boiler is a testament to Baxi's commitment to delivering quality and innovation in the heating sector.
Top Page Image Contents