Baxi Potterton Gold FSB 30 HE Vertical Flue System Examples Twin Pipe, Total equivalent length

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Vertical Flue System

Examples (Twin Pipe)

(ii)

(i)

(ii)

(i)

8.0Flue Options

8.2Twin & Vertical Flue Systems

Concentric

The maximum equivalent lengths are 4m (vertical). Their lengths exclude the standard elbow and terminal assembly (vertical).

Twin Flue

The total maximum equivalent flue length is 150m. NOTE: Each 1m of flue duct should be calculated as 2m.

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

Concentric Pipes:

135° bend

0.5 m

 

93° bend

1.0 m

Twin Flue Pipe:

135° bend (air duct)

1.3 m

 

135° bend (flue duct)

2.6 m

 

90° bend (air duct)

4.8 m

 

90° bend (flue duct)

9.6 m

IMPORTANT: All flue systems must be securely supported at least once every metre. Suitable pipe supports are available as accessories.

Vertical Flue System Examples

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 135° 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:-

 

 

1 metre for each 91.5° bend

(ii)

 

0.5 metre for each 135° bend

 

B

Roof Terminal

C

 

 

The total equivalent length

 

 

for this example is

 

 

17.2 + 34.4 = 51.6 metres.

 

 

AIR DUCT

 

 

Equivalent

No of

Sub total

 

Length Value

fittings/pipes

 

1m extension

1m

5

5.0m

135°bend

1.3m

2

2.6m

91.5°bend

4.8m

2

9.6m

This bend is equivalent to 1 metre

A

(i)

 

Equivalent Length Air Duct = 17.2m

 

 

 

 

 

 

 

 

 

 

FLUE DUCT

 

 

Equivalent

No of

Sub total

 

Length Value

fittings/pipes

 

1m extension

2m

5

10.0m

135°bend

2.6m

2

5.2m

91.5°bend

 

 

 

9.6m

2

19.2m

 

 

 

 

 

Equivalent Length Flue Duct = 34.4m

 

 

 

 

© Baxi Heating UK Ltd 2011

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Contents
FSB 30 HE Potterton Gold FSB 30 HE No 592 Natural GasScheme Members only Installer Notification GuidelinesGas Safety Installation & Use Regulations Important Installation, Commissioning, Service & RepairLegislation Codes of Practice, most recent version should be usedContents Introduction DescriptionImportant Information Position of Optional Integral Timer Wiring Flow Temperature Thermistor RedGeneral Layout Layout Figs , 4, 5Boiler Operation Boiler OperationAll TRVs Shut Down ? Minute Anti-cycle Technical Data CAT I 2HIpxx Dimensions and Fixings System Details Water Circulating SystemsTreatment of Water Circulating Systems Low Head Installation PipeworkAir Vents System Controls & Wiring Sealed Systems Fig Site Requirements LocationCompartment Gas Supply Clearances Figs &16Electrical Supply 5mm Min 500mm Min For Servicing Purposes 390mmCondensate Disposal Condensate Drain GeneralSink Site Requirement± 10 from vertical Blockage or restriction of the pipe into the drainMIN FlueHorizontal Flue System Examples Flue OptionsHorizontal Flue Systems This bend is equivalent to 0.5 metreTwin & Vertical Flue Systems Vertical Flue System Examples Twin PipeTotal equivalent length 17.2 + 34.4 = 51.6 metresCDS Flue AccessoriesFlue Group B Flue Group PFor Vertical Flues For Vertical Flue Systems For Twin Flue SystemsFor Twin Flues For Roof Terminals Flue DimensionsTerminal Guard Fig Flue Deflector aPlume Displacement Kit P.D.K Plume DisplacementDetermining Permissible Lengths P.D.K General Fitting Notes P.D.K Min metres Min .3 metresThis section of the flue Must be horizontal Fig. H Installation Flue Inner Flue Support Bracket Fitting the Standard FluePoints Inner Flue Support Bracket Flue Elbow Gasket Flue TrimConnection Making the Condensate DrainMaking The Electrical Connections Cable Clamp Way Terminal BlockIntegral Programmer Electrical Schematic Wiring DiagramGreen/Yellow Fuse 3.15 ATPCB Illustrated Wiring DiagramCommissioning the Boiler Commissioning the BoilerPriming the Condensate Pump Check the Operational Working Gas Inlet Pressure Completion 13.2 ‘Benchmark’ ChecklistFitting The Case Panels & Facia HandoverAnnual Servicing Servicing the BoilerAir Box Door Panel Spark Sleeve Annual Servicing InspectionEarth Combustion Box Door Panel InsulationCracks/damage. Clean with a soft brush Pipe may be removed to increase accessLock Nut Service Drain Plug Central Insulation Panel To it FigFlow Temperature Thermistor and Safety Thermostat Fig Changing ComponentsChanging Components & Preparation Clip Condensate Pump Complete aDrain the boiler see .1 paragraph 2 Check operation of the pump See SectionChanging Components Spark and Sensing Electrodes Fig Gas Valve Fig Injector Pipe FigCondensate Trap Fig Securing Nut Sensor Leads Condensate Trap Lock NutHeat Exchanger Manifold Assembly Heat ExchangerCombustion Box Door Panel Burner Support Bracket Burner Securing Screws Short Parts List Short Parts ListKey Description Fault Finding 240V at B ? 240V at a ?240V at C ? 240V at D ?Viewed from Wire Entry end Replace Flow Switch Wires from inline Connector to PCB faultySystem full of water ? Pump running ?Rectify wiring Wiring from PCBReplace PCB Way Connector Lead from PCB to Gas Valve faulty Is there Gas at gas valve inlet ?Lights On Off Replace Stat Replace fan Lights Rectify wiring Viewed from Wire Entry end ‘C’ ‘D’ ‘B’ ‘A’YES Condensing Boilers only Service Record Brooks House, Coventry Road, Warwick. CV34 4LL Comp No 6/11 Potterton