Baxi Potterton 30 HE manual Vertical Flues Twin Pipe, Twin & Vertical Flue Systems

Page 19

Vertical

Flues

(Twin Pipe)

Y

X

Vertical

Flues

Y

X

8.0 Flue Options

8.2Twin & Vertical Flue Systems

1.Maximum permissible equivalent flue lengths are:-

Vertical Concentric

3m

Vertical Twin Pipe

12m*

*Both the air and flue duct can be up to 12 metres long each.

4.Any additional “in line” bends in the flue system must be taken into consideration. Their equivalent lengths are:-

Concentric Pipes:

45° bend

0.5 metres

93° bend

1.0 metres

Twin Flue Pipe

 

45° bend

0.25 metres

91.5° bend

0.50 metres

The elbow supplied with the standard horizontal flue is not included in any equivalent length calculations

NOTE: Flue length is measured from point X to Y as shown.

Total Equivalent Length =

A+B+C+1x90°Bend

All vertical and angled runs must be included, measured from the boiler adaptor (point X) to the joint with the flue terminal (point Y). One 91.5° bend or two 45° bends can be included without reduction of the flue length.

If further elbows are required the flue length must be reduced by the following amounts:-

Roof

Terminal

660mm

The total equivalent length for this example is

1 metre for each 91.5° elbow

0.5 metre for each 45° elbow

Y

C

= 6.5 metres.

 

AIR DUCT

 

Equivalent

No of

Sub total

B

This bend is equivalent to 1 metre

A

X

© Baxi Heating UK Ltd 2007

 

Length Value

 

fittings/pipes

 

 

 

 

1m extension

1m

 

5

5.0m

 

 

 

 

 

45°bend

0.25m

 

2

0.5m

 

 

 

 

 

91.5°bend

0.5m

 

2

1.0m

 

 

 

 

 

 

Equivalent Length Air Duct = 6.5m

 

 

 

 

 

 

 

 

 

 

 

 

 

FLUE DUCT

 

 

Equivalent

 

No of

Sub total

 

Length Value

 

fittings/pipes

 

1m extension

1m

5

5.0m

 

 

 

 

45°bend

0.25m

2

0.5m

 

 

 

 

91.5°bend

0.5m

2

1.0m

 

 

 

 

 

Equivalent Length Flue Duct = 6.5m

 

 

 

 

 

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Contents Installation & Service Instructions Contents Scheme Members only Installer Notification GuidelinesLegislation Important Installation, Commissioning, Service & RepairCodes of Practice, most recent version should be used Technique Safe Manual HandlingGeneral PreparationCase Front Panel Control Box Data Badge IntroductionDescription Optional ExtrasLayout General 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 PressurisingShowers Domestic Hot Water Circuit FigHard Water Areas Location Site RequirementsClearances Figs Gas Supply Ventilation of CompartmentsElectrical 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 elbowKey Accessory Size Flue Accessories5111079 Air duct adaptor Flue 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 Changing Components Pressure Switch FigFan Figs Heat Exchanger Fig 14.0 Changing ComponentsBurner Fig Reassemble in reverse order Injectors FigElectrodes Fig Insulation FigGas Valve Fig Central Heating Temperature Sensor FigSafety Thermostat Fig DHW Temperature Sensor FigPump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Expansion Vessel Fig Pressure Gauge FigsCondensate 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

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