Potterton Titanium 24 Page 37 Installation & Service Instructions Manual Download | Manualshive

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37

11.0 Commissioning

© Baxi Heating UK Ltd 2014

Set Boiler to Maximum Rate

(see 11.1.13)
Allow the combustion to
stabilise. Do not insert probe to
avoid ‘flooding’ the analyser.

Perform Flue Integrity
Combustion Check

Insert the analyser probe into the
air inlet test point, allowing the
reading to stabilise.

Is O

2

20.6% and

CO

2

< 0.2% ?

Verify Flue Integrity

Indication that products of
combustion & inlet air are
mixing - further investigation is
required.
Check all flue components are
correctly assembled, fixed &
supported. Check the flue &
terminal are unobstructed.

Is O

2

20.6% and

CO

2

< 0.2% ?

TURN APPLIANCE OFF !

Call 0844 871 1555 for
advice.
The appliance MUST NOT be
commissioned until all
problems are identified and
resolved.

Check CO & Combustion Ratio
at Maximum Rate

Whilst the boiler is still
operating at maximum insert the
analyser probe into the flue gas
test point, allowing the reading to
stabilise.

Is CO < 350ppm
and CO/CO

2

ratio

< 0.004 ?

Verify Integrity of Seals

Check all burner seals, internal
flue seals, door & case seals.
Replace any seals that appear
unsound.

Is CO < 350ppm and
CO/CO

2

ratio <

0.004 ?

TURN APPLIANCE OFF !

Call 0844 871 1555 for advice.
The appliance MUST NOT be
commissioned until all
problems are identified and
resolved.
If commissioning cannot be fully
completed the appliance must be
disconnected from the gas supply
in accordance with the GSIUR.

Note:

Check & record the CO &

combustion ratio at both
maximum & minimum rates before
calling 0844 871 1555.

Set Boiler to Minimum Rate

(see 11.1.19)
Allow the combustion to
stabilise. Do not insert probe to
avoid ‘flooding’ the analyser.

Yes

No

No

Yes

No

Yes

Check CO & Combustion Ratio
at Minimum Rate

Whilst the boiler is
operating at minimum insert the
analyser probe into the flue gas
test point, allowing the reading to
stabilise.

Yes

No

Is CO < 350ppm and
CO/CO

2

ratio <

0.004 ?

No

Yes

BOILER OPERATING

SATISFACTORILY. NO

FURTHER ACTION

REQUIRED

Ensure test points are capped, the
boiler case front panel is correctly
fitted & secured and all other
commissioning procedures
completed.
Complete the ‘Benchmark’
Checklist, recording the CO &
combustion ratio readings as
required.

11.2

Checking Combustion

1. This procedure is mandatory in GB from April 2014. It is

strongly recommended to perform the procedure before that

date.

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Summary of Contents for Titanium 24

Page 1: ...ting UK Ltd 2014 Installation Service Instructions These instructions include the Benchmark Commissioning Checklist and should be left with the user for safe keeping Condensing Combination Boiler You can rely on ...

Page 2: ...s to dwellings Therefore the checklist only applies if the appliance is being installed in a dwelling or some related structure The flowchart opposite gives guidance for installers on the process necessary to ensure compliance with Building Regulations Baxi Heating UK Ltd 2014 All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means or stored in ...

Page 3: ...elevant LABC You must ensure that the certificate number issued by the Gas Safe Register is written onto the Benchmark Checklist Scheme Members only Call Gas Safe Register on 0800 408 5577 or log onto www gassaferegister co uk within 10 days If you notify via the Gas Safe Register the register will issue the Building Regulations certificate on members behalf Complete the Benchmark Checklist Instal...

Page 4: ...n Ireland The Water Fittings Regulations or Water Byelaws in Scotland The Current I E E Wiring Regulations Where no specific instructions are given reference should be made to the relevant British Standard Code of Practice In IE the installation must be carried out by a competent Person and installed in accordance with the current edition of I S 813 Domestic Gas Installations the current Building ...

Page 5: ...s clear and unobstructed If possible avoid steps wet or slippery surfaces unlit areas etc and take special care on ladders into lofts Technique When handling or lifting always use safe techniques keep your back straight bend your knees Don t twist move your feet avoid bending forwards and sideways and keep the load as close to your body as possible Where possible transport the boiler using a sack ...

Page 6: ...6 0 System Details 12 7 0 Site Requirements 15 8 0 Flue Options 21 9 0 Plume Displacement 26 10 0 Installation 30 11 0 Commissioning 36 12 0 Completion 39 13 0 Servicing 40 14 0 Changing Components 42 15 0 Setting the Gas Valve 51 16 0 Electrical 52 17 0 Short Parts List 53 18 0 Fault Finding 54 19 0 Pages for Notes 60 Benchmark Checklist 62 Section Page ...

Page 7: ... on the inner door panel or the control box It is visible when the case front panel is removed Fig 1 6 The boiler model name and serial number are also shown on the information label on the back of the facia door This is for user reference 7 The boiler is intended to be installed in residential domestic environments on a governed meter supply only 8 The boiler must be installed with one of the pur...

Page 8: ...ate Trap 13 Flame Sensing Electrode 14 Spark Electrode 15 Primary Heat Exchanger 16 Fan Assembly 17 On Off Reset Selector Switch 18 Central Heating Temperature Control 19 Hot Water Temperature Control 20 Venturi 21 Air Gas Collector 22 Combustion Box Cover Burner 23 Igniter 24 Burner On Light 25 Central Heating Mode Light 26 Domestic Hot Water Mode Light 27 Display 13 17 18 19 8 Reset 1 2 3 4 5 PM...

Page 9: ...olated The boiler will not operate and the integral timer will require resetting once the selector switch is set to either Position i or Position ii 3 3 Frost Protection Mode 1 The frost protection mode is integral to the appliance and functions only with the selector switch see Section 2 1 in the domestic hot water and central heating position If the system temperature falls below 5 C then the bo...

Page 10: ...l kW 28 9 4 40 model kW 32 9 6 Electrical Supply 230V 50Hz Appliance must be connected to an earthed supply Power Consumption 155W 24 28 160W 33 40 Electrical Protection IPX0D with timer IPX5D without timer Internal Fuse Rating F2L Appliance Category CAT I 2H Inlet Pressure Natural Gas G20 mbar 20 Injector Natural Gas G20 7 5mm 24 28 12mm 33 40 Appliance Type C13 C33 C53 Heat Output CH Condensing ...

Page 11: ...m 207mm for 80 125mm flue systems F 145mm G 131mm H 180mm Domestic Hot Water Outlet 15mm Cold Water Inlet 15mm Heating Return 22mm Heating Flow 22mm Pressure Relief Valve 15mm Gas Inlet 22mm 65 mm 65 mm 65 mm 65 mm 65 mm 32 5 mm Condensate Drain Tap Rail 360 Orientation Tube Ø 100mm D C B A E G F At Least 1 5 H ...

Page 12: ...d flushed out using for example Sentinel X300 or X400 or Fernox F3 They should be used following the flushing agent manufacturer s instructions System additives corrosion inhibitors and flushing agents descalers should comply to BS7593 requirements e g Sentinel X100 and Fernox MB 1 which should be used following the inhibitor manufacturer s instructions Full instructions are supplied with the prod...

Page 13: ...to 0 5 bar Therefore the minimum cold fill pressure is 0 5 bar The vessel is suitable for correct operation for system capacities up to 125 litres 24 28 models 155 litres 33 40 models For greater system capacities an additional expansion vessel must be fitted For GB refer to BS 7074 Pt 1 For IE the current edition of I S 813 Domestic Gas Installations 6 7 Pressure Relief Valve Fig 6 1 The pressure...

Page 14: ...eatment device already fitted to the wholesome water supply connected to the boiler domestic hot water DHW inlet supply then a suitable expansion device may be required 5 The boiler s maximum working mains pressure is 8 bar therefore all pipework connections fittings etc should be suitable for pressures in excess of 8 bar A pressure reducing valve must be fitted for pressures in excess of 8 bar Th...

Page 15: ... Wiring Regulations and Building Regulations In IE reference should be made to the current edition of I S 813 Domestic Gas Installations and the current ETCI rules 4 If the boiler is to be fitted into a building of timber frame construction then reference must be made to the current edition of Institute of Gas Engineers Publication IGE UP 7 Gas Installations in Timber Framed Housing This is the MI...

Page 16: ...ions In IE reference should be made to the current edition of ETCI rules 2 The mains supply is 230V 50Hz fused at 3A NOTE The method of connection to the electricity supply must facilitate complete electrical isolation of the appliance Connection may be via a fused double pole isolator with a contact separation of at least 3mm in all poles and servicing the boiler and system controls only 7 6 Bath...

Page 17: ...diameter and must be supported using suitably spaced clips of the correct design to prevent sagging 6 It is advisable that the full length of condensate pipe is run internally and preferably be less than 3 metres 7 Internal runs greater than 3 metres or runs in cold areas should use 32mm waste pipe 8 External runs MUST be a MINIMUM of 32mm and fully insulated with material suitable for external us...

Page 18: ... emptied then back pressure may force water out of the boiler trap and cause appliance lockout Boiler 2 5 Minimum fall iii Termination to a drain or gully Boiler 500mm min 2 5 Minimum fall iv Termination to a purpose made soakaway Holes in the soak away must face away from the building 50mm per metre of pipe run 50mm per metre of pipe run Further specific requirements for soakaway design are refer...

Page 19: ...ce Heating Element is NOT a substitute for correct installation of the condensate drain ALL requirements in this section must still be adhered to Boiler vi pumped into an external soil vent pipe 2 5 Minimum fall 50mm per metre of pipe run Condensate Pump Unheated Location e g Garage Basement or similar heated Boiler 2 5 Minimum fall 50mm per metre of pipe run Pipe must terminate above water level ...

Page 20: ...ram below Opening Window or Door 150mm MIN IMPORTANT If fitting a Plume Displacement Flue Kit the air inlet must be a minimum of 150mm from any opening windows or doors see Section 9 0 Plume Displacement Kit Air Inlet Fig 18a Terminal Position with Minimum Distance Fig 18 mm A1 Directly below an opening air brick opening windows etc 300 B1 Above an opening air brick opening window etc 300 C1 Horiz...

Page 21: ...00 80 125 Horizontal Concentric 10 metres 20 metres 4 Any additional in line bends in the flue system must be taken into consideration Their equivalent lengths are Concentric Pipes 135 bend 0 5 metres 93 bend 1 0 metres Twin Flue Pipe 135 bend 0 25 metres 91 5 bend 0 50 metres 4 The elbow connected to the boiler adaptor is not included in any equivalent length calculations 5 The illustrations oppo...

Page 22: ...d the flue length must be reduced by the following amounts 1 metre for each 91 5 bend 0 5 metre for each 135 bend 8 2 Twin Vertical Flue Systems 1 Maximum permissible equivalent flue lengths are 60 100 80 125 Vertical Concentric 10 metres 20 metres Vertical Twin Pipe 15 metres 2 Any additional in line bends in the flue system must be taken into consideration Their equivalent lengths are Concentric...

Page 23: ...111087 F Flue Bend pair 90 5111072 G Flue Bend 2 pair 135 5111086 J Vertical Flue Boiler Adaptor Kit 720089801 H Vertical Flue Adaptor 5111084 W Pipe Support pair 80mm 5111081 Y Flue Termination Kit horizontal termination 80mm 5120172 Z Single Terminal 80mm 5121791 Q Adaptor 60 80 5121792 T Pitched Roof Terminal 25 45 5106164 FLUE GROUP G Concentric Flue System 80 125mm diameter A4 Horizontal Flue...

Page 24: ... adaptor in the boiler adaptor making sure that it is pushed down as far as possible 2 Ensure that the air flue ducts are connected correctly and that they are adequately supported at least once every metre using the available pipe supports 3 Ensure that all joints and elbows are fully engaged and cannot become disconnected during operation Flue Duct Connection Boiler Adaptor Air Duct Connection ...

Page 25: ...lar of the flue locates securely with the flashing A mastic seal may be necessary From inside the roof adjust the flue to a vertical position and secure to the roof structure with the clamp supplied 8 7 Flue Dimensions The standard horizontal flue kit allows for flue lengths between 100mm and 685mm from elbow to terminal Fig 19 The maximum permissible equivalent flue length is 10 metres 60 100 sys...

Page 26: ... increase with the addition of extensions the length of either or both the 60 100 concentric and 60Ø exhaust 5 Standard concentric flue extension kits may be added between the boiler elbow and the terminal assembly 6 The minimum length of the concentric flue is 100mm when measured from the edge of the flue elbow IMPORTANT The maximum equivalent length of concentric flue is 8 metres Additional bend...

Page 27: ...he 60Ø exhaust and any extensions or additional bends Example 1 Not Permissible If for instance a concentric length of 5 metres was required and the 60Ø exhaust needed to be 6 metres the graph shows that this combination would NOT be permissible as the intersection point would be above the solid diagonal line Example 2 Flue Lengths OK Where both lengths have been determined they can be applied to ...

Page 28: ... that the concentric assembly and any extensions fall back to the boiler at an angle of at least 1 5 and that the external air inlet is to the bottom 8 Use suitable brackets to support the concentric assembly and any extensions and make good inside and outside 9 The 60Ø exhaust can now be fitted Slide the adaptor over the plain end of the 60Ø exhaust Fig 31 and engage the exhaust in the terminal S...

Page 29: ...the extension at 30mm as shown in two positions directly opposite each other Fig 36 20 Using a suitable bit e g 2mm drill through the extension and outlet Secure using two of the screws supplied 21 The remaining screw must be used to secure the adaptor to the concentric terminal 22 When the plume outlet is positioned under a balcony or other projection Fig 37 it must protrude at least 200mm it is ...

Page 30: ...the centre of the flue hole rear exit For side flue exit mark as shown Fig 41 5 If required mark the position of the gas and water pipes Remove the template 6 Cut the hole for the flue minimum diameter 116mm 7 Drill the wall as previously marked to accept the wall plugs supplied Secure the wall plate using the fixing screws 8 Using a spirit level ensure that the plate is level before finally tight...

Page 31: ...connect them to the central heating flow and return taps and the cold inlet tap The system can now be filled by opening the cold inlet supply and stop valves 8 If desired a suitable gauge can be connected to one of the taps so that the system may be accurately pressurised 9 All joints fittings and system components can now be examined for soundness at operating pressure 10 The system can be flushe...

Page 32: ...ied 3 The pipework must be at least 15mm diameter and run continuously downwards to a discharge point outside the building See section 6 7 for further details 4 Utilising one of the sealing washers connect the discharge pipe to the adaptor and tighten the nut 5 Complete the discharge pipework and route it to the outside discharge point IMPORTANT Make all soldered joints before connecting to the pr...

Page 33: ...s angled at 93 degrees to ensure a fall back to the boiler 3 Measure the distance from the outside wall face to the elbow This dimension will be known as X Fig 48 4 To dimension X add 50mm This dimension to be known as Y IMPORTANT Check all dimensions before cutting 5 Mark dimension Y on the flue as shown Fig 49 Carefully cut the waste material from the flue ensuring that the ducts are square and ...

Page 34: ...ect boiler operation and prevent water entering the flue 11 Make good between the wall and air duct outside the building 12 Fit the flue trim if required and if necessary fit a terminal guard see Section 8 8 8 9 CONCENTRIC VERTICAL FLUE 13 Once the length of the vertical concentric extension has been determined mark and carefully cut off the excess material The cut end MUST be square and free of b...

Page 35: ... the blanking plate supplied in the installation kit and wiring connected as in Fig 57 6 Remove the link between terminals 1 2 The 230V supply at terminal 2 must be connected to the thermostat The switched output from the thermostat must be connected to terminal 1 Fig 57 If the room thermostat being used incorporates an anticipator it MUST be wired as shown in Fig 57 7 Ensure that the external con...

Page 36: ...rcuit and the relevant seals Proceed to put the boiler into operation as follows 13 The Combustion Check procedure as shown by the chart in 11 2 is mandatory from April 2014 The method of setting the boiler to operate at maximum and minimum rates to comply with the procedure is described below 14 Ensure that all external controls are calling for heat The actual current boiler temperature is shown ...

Page 37: ...eals that appear unsound Is CO 350ppm and CO CO2 ratio 0 004 TURN APPLIANCE OFF Call 0844 871 1555 for advice The appliance MUST NOT be commissioned until all problems are identified and resolved If commissioning cannot be fully completed the appliance must be disconnected from the gas supply in accordance with the GSIUR Note Check record the CO combustion ratio at both maximum minimum rates befor...

Page 38: ...he property working Measure the Gas Rate 8 With any other appliances pilot lights turned OFF the gas rate can be measured It should be between 24 model 2 6m3 h 28 model 3 1m3 h 33 model 3 6 m3 h 40 model 4 36 m3 h 9 The Calibration Function is active for 20 minutes unless the maximum CH temperature is exceeded 10 The function can be disabled at any time by turning the DHW temperature knob 11 Caref...

Page 39: ...Off Bottom position No central heating Domestic hot water will operate on demand To set the time of day Turn the timer outer bezel clockwise to align the pointer with the correct time to the nearest 15 minutes ensuring that A M P M is considered Do not at any time attempt to turn the bezel anti clockwise To set the timed heating program Decide which times of the day the central heating is required...

Page 40: ...the appliance and installation These details will be required in the event of any warranty work The publication must be handed to the user for safe keeping and each subsequent regular service visit recorded 4 For IE it is necessary to complete a Declaration of Conformity to indicate compliance with I S 813 An example of this is given in I S 813 Domestic Gas Installations This is in addition to the...

Page 41: ...requirements of BS7927 or BS EN50379 3 and be calibrated in accordance with the analyser manufacturers requirements Competence can be demonstrated by satisfactory completion of the CPA1 ACS assessment which covers the use of electronic portable combustion gas analysers in accordance with BS 7967 Parts 1 to 4 Check the Combustion Performance CO CO2 ratio 4 Set the boiler to operate at maximum rate ...

Page 42: ... Initially check the cold water inlet tap filter 15 Turn the tap off and draw off from a hot tap Undo the blanking cap and remove the threaded bush Fig 74 16 Extract the filter and rinse thoroughly in clean water Reassemble and check the flow If required clean the restricter filter as described below 17 Pull off the Hall Effect sensor Undo the restricter from the inlet return manifold Fig 75 18 Ri...

Page 43: ...iter Fig 76 1 Disconnect the igniter feed plug and the electrode leads noting their positions 2 Undo the screw securing the bracket to the boiler 3 Remove the igniter and transfer the bracket to the new component 4 Reassemble in reverse order 14 2 Spark and Sensing Electrodes Fig 77 1 Disconnect the electrode leads noting their positions 2 Remove the retaining screws securing each of the electrode...

Page 44: ...securing the fan to the venturi and fit the new fan replacing the seal if necessary 6 Examine the burner gasket and replace if necessary 7 Reassemble in reverse order ensuring that the injector is in place and the sensing pipe is connected to the fan 14 4 Venturi Fig 78 1 Remove the collector and fan assembly as described in section 14 3 2 Extract the injector from the venturi 3 Undo the screws se...

Page 45: ...ds noting their positions Also remove the electrodes as described in section 14 2 2 Undo the screws securing the collector to the venturi and the nuts holding the cover to the heat exchanger Draw the collector and cover assembly away 3 Remove the cover insulation piece 4 Fit the new insulation carefully over the burner and align it with the slots for the electrodes 5 If the rear insulation require...

Page 46: ...Reassemble in reverse order The component is not polarised either wire will fit each terminal 14 10 Central Heating Temperature Sensor NTC Fig 84 1 Ease the retaining tab on the sensor away and disconnect the electrical plug 2 Unscrew the sensor from it s pocket and reassemble in reverse order The plug will only fit one way 14 11 Safety Thermostat Fig 85 1 Pull the plug off the thermostat 2 Remove...

Page 47: ...ing the body to the pipe and manifold and draw the pump forwards 3 Undo the screw on the pump wiring cover and remove the cover Using a suitable flat bladed screw driver press the cable securing levers downwards to release each wire after noting their position 4 Unscrew the automatic air vent from the pump body 5 Connect the wiring to the new pump Examine the O ring seals on the return pipe and ma...

Page 48: ...he electrical plug from the sensor 3 Connect the plug to the new sensor Carefully fit the new sensor to the hydraulic assembly ensuring it is fully down 14 19 Pressure Relief Valve Fig 93 1 Drain the boiler primary circuit 2 Disconnect the discharge pipe from the valve Using a suitable hexagon key undo the grub screw sufficiently to release the valve 3 Note the orientation of the valve rotate it a...

Page 49: ...t hand location stud is offset towards the centre more than the right hand one 7 Reassemble in reverse order 14 21 Diverter Valve Motor Unit Assembly Fig 95 1 To replace the motor unit disconnect the multi pin plug 2 Pull off the retaining clip and remove the motor unit 3 The motor unit can now be replaced or the valve assembly removed 4 Drain the primary circuit and draw off any hot water once th...

Page 50: ...e 5 Reassemble in reverse order ensuring that the temperature controllers are reset to their previous positions 14 23 Selector Switch Fig 98 1 Note the setting of the selector switch knob and carefully pull it off the facia 2 Completely undo the screws securing the control box cover and release the cover retaining barbs from their slots Disengage the rear of the cover from the control box hinge pi...

Page 51: ...seals are in place and the injector is fitted NOTE To assist the boiler to light prior to final setting use a suitable hexagon key to wind out the throttle adjustment screw until it is flush with the valve body then turn the screw 4 full turns clockwise Fig 100 If the boiler will not light or the correct CO2 cannot be achieved contact the heateam technical helpline 14 25 Expansion Vessel Fig 101 1...

Page 52: ...emperature Figs 105 106 107 7 Remove the plug from the flue sampling test point Insert the analyser probe and allow sufficient time for the reading to settle Fig 108 The CO2 should be 8 7 0 2 8 It is possible to alter the CO2 by adjustment of the gas valve Remove the plastic cover from the Throttle Adjustment Screw At maximum rate the Throttle Adjustment Screw should be turned using a suitable hex...

Page 53: ...NTC Sensor Fan GasValve Overheat Stat Flame Sensing Electrode Pump Flue Sensor X400 X401 g g b b r r b b b b b br bk g b br g y b br b br br b b b br br br b b br r bk r bk Water Pressure Switch Spark Generator Ignition Electrode 9 8 7 6 5 4 3 2 1 9 10 8 7 6 5 4 3 2 1 Hall Effect Sensor r w b w r bk bk r w DiverterValve IntegralTimer 1 2 3 4 1 2 3 4 bk br bk b N L w g or w 1 4 2 5 3 1 2 a b Link b...

Page 54: ...720222901 422 Gas Valve 720301001 404 Hall Effect Sensor 5114767 306 Burner 24 28 5122149 Burner 33 5114697 Burner 40 5114698 419 Water Pressure Switch 5114748 400 Plate Heat Exchanger 5114708 415 Pump 248042 421 NTC Sensor 5114725 420 Overheat Thermostat 5114729 504 Pressure Gauge 248090 503 PCB 24 5121862 PCB 28 720043401 PCB 33 720795201 PCB 40 5122287 306 426 315 316 311 422 624 419 400 415 30...

Page 55: ...133 will be displayed by E1 alternating with 33 E50 is shown as E then 50 E20 E28 E50 indicate faulty or incorrect components E110 shows overheat of the primary water and E130 overheat of the flue system E119 is displayed when the primary water pressure is less than 0 5 bar E133 indicates that the gas supply has been interrupted ignition has failed or the flame has not been detected E125 is displa...

Page 56: ...r 133 flashing Burner does not stay alights after 5 seconds Error 133 flashing Go to section I Operation sequence successful If the error 110 is still flashing Go to section J Fan runs at correct speed YES YES NO NO NO YES YES YES YES YES YES YES YES NO YES YES YES YES NO NO NO NO NO Burner output modulates to maintain the temperature set Burner goes out Go to section C Ensure controls are set to ...

Page 57: ...hts after 5 seconds Error 133 flashing Go to section I Operation sequence successful Turn the selector switch to reset position for 5 seconds If the error 110 is still flashing Go to section J Fan runs at correct speed YES YES NO NO NO YES YES YES YES YES YES YES YES NO YES YES YES YES NO NO NO NO NO Burner output modulates to maintain the temperature set DHW flow sensor senses no flow Burner goes...

Page 58: ...onnector terminals 3 4 Replace PCB 2 NO Change pump supply cable YES B CH system pressure less than 0 5 bar Re pressurise system 1 YES Check the tap of the automatic air vent is opened Open the automatic air vent 2 NO C 1 NO YES Fan connections correct at fan PCB X2 connector is 230V AC across terminals 5 7 Fan jammed or faulty winding Replace PCB Replace fan YES D If pump jammed release NO NO Rep...

Page 59: ...d lead 2 Electrode connection 3 Spark gap and position YES NO Replace igniter YES H YES 1 Ensure that the Hall Effect Sensor is in position Check the connection between the PCB X400 connector terminals 3 6 7 and the electronic sensor Check the voltage between red wire and blue wire is more than 5V DC NO Replace PCB Check and correct the connection of the tube between the venturi and gas valve Repl...

Page 60: ... to cool Continuity across thermostat terminals more than 1 5 ohm J L M Is there 230V at Motor 3 way valve Replace motor 3 way valve 1 YES PCB X3 connector terminals 5 6 central heating mode 5 7 domestic hot water mode Replace PCB 2 NO Change pump supply cable YES Fan connections correct at fan PCB X401 connector terminals 5 6 7 8 1 YES Replace fan Temperature sensors faulty Cold resistance approx...

Page 61: ...61 19 0 Notes Baxi Heating UK Ltd 2014 ...

Page 62: ...uired Thermostatic radiator valves Fitted Not required Automatic bypass to system Fitted Not required Boiler interlock Provided ALL SYSTEMS s instructions Yes What system cleaner was used What inhibitor was used Quantity litres Yes No CENTRAL HEATING MODE measure and record Gas rate m hr OR ft hr Burner operating pressure if applicable mbar OR Gas inlet pressure mbar C Central heating return tempe...

Page 63: ...ompany name Telephone No Gas safe register No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 06 Date Engineer name Company name Telephone No Gas safe register No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 07 Date Engineer name Company name Telephone No Gas safe register No Record At max ...

Page 64: ...s in our products which may affect the accuracy of the information contained in this leaflet All goods are sold subject to our standard Conditions of Sale which are available on request POTTERTON A Trading Division of Baxi Heating UK Ltd 3879156 Brooks House Coventry Road Warwick CV34 4LL After Sales Service 0844 871 1560 Technical Enquiries 0844 871 1555 Website www potterton co uk e oe ...

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