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FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO

CHECK ON COMMISSIONING A CONDENSING BOILER

Important Preliminary Information on Checks

The air gas ratio valve is factory-set and must not be adjusted DURING COMMISSIONING.
If the boiler requires conversion to operate with a different gas family (e.g. conversion from natural gas to LPG)

separate guidance is provided with the conversion kit supplied and this must be followed.

PRIOR TO CO LEVEL AND COMBUSTION RATIO CHECK

The installation instructions must have been followed, gas type verified and gas supply pressure / gas rate checked as

required prior to commissioning.
As part of the installation process, ESPECIALLY WHERE A FLUE HAS BEEN FITTED BY PERSONS OTHER THAN

THE BOILER INSTALLER, visually check the integrity of the whole flue system to confirm that all components are

correctly assembled, fixed and supported. Check that maximum flue lengths have not been exceeded and all guidance

has been followed (e.g. Gas Safe Register Technical Bulletin (TB) 008 where chimney/flues are in voids).
The ECGA should be of the correct type, as specified by BS EN 50379-3:2012.
Prior to its use, the ECGA should have been maintained and calibrated as specified by the manufacturer. The installer

must have the relevant competence for use of the analyser.
Check and zero the analyser IN FRESH AIR in accordance with the analyser manufacturer’s instructions.

KEY:

CO

= carbon monoxide

CO

2

= carbon dioxide

O

2

= oxygen

Combustion Ratio

= The CO reading measured in ppm divided by the CO

2

reading first converted to ppm

ppm

= parts per million

GS(I&U)R

= Gas Safety (Installation and Use) Regulations

66

Installation and Servicing

Section 6 - Benchmark to Commissioning

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Содержание LOGIC MAX COMBI 2 C24

Страница 1: ...e Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Heating For the very latest copy of literature for specification and maintenance practices visit our website idealheating com where you can download the relevant information in PDF format October 2022 UIN 228290 A06 INSTALLATION SERVICING LOGIC MAX COMBI2 C24 C30 C35 ...

Страница 2: ...tary Heater n a n a no no no Combination Heater n a n a yes yes yes Nominal Heat Output for Space Heating Full Load P4 kW 24 3 24 3 24 3 Part Load P1 kW 8 8 8 Auxiliary Electricity Consumption Full Load elmax kW 0 044 0 028 0 028 Part Load elmin kW 0 013 0 009 0 026 Standby PSB kW 0 002 0 003 0 002 Seasonal Space Heating Energy Efficiency Full Load ƞ4 90 90 90 Part Load ƞ1 98 6 98 6 98 6 Standby L...

Страница 3: ...1 5 2 3 4 3 5 5 PRODUCT FICHE The energy efficiency of the package of products provided for in this document may not correspond to its actual energy efficiency once installed in a building as the efficiency is influenced by further factors such as heat loss in the products in relation to the building size and its characteristics Collector Size in m2 Tank Volume in m3 Collector Efficiency in Tank r...

Страница 4: ... NOTES FOR THE INSTALLER WARNING Risk of injury or death CAUTION Risk of damage to objects Table of Acronyms CH Central Heating DHW Domestic Hot Water TRV Thermostatic Radiator Valve PRV Pressure Relief Valve IE Ireland ETCI Electro Technical Council of Ireland BS British Standard WRAS Water Regulations Advisory Scheme SAP Standard Assessment Procedure IEE Institution of Electrical Engineers UKCA ...

Страница 5: ... Schedule 36 3 2 Removal Replacement of Components 37 3 3 Draining the Boiler 37 3 4 Boiler Front Panel Removal Replacement 38 3 5 Flue Manifold Removal Replacement 38 3 6 Fan and Venturi Assembly Removal and Cleaning 39 3 7 Burner Removal and Cleaning 40 3 8 Cleaning the Heat Exchanger 40 3 9 Ignition Detection Electrode Replacement Inspection 41 3 10 Cleaning the Condensate Trap 41 3 11 Burner I...

Страница 6: ...ession Return Connection Central Heating 22 mm copper compression Flue Terminal Diameter mm 100 Average Flue Temp Mass Flow Rate DHW 63ºC 11g s 68ºC 13g s 73ºC 15g s CO2 Content 0 7 Max DHW 9 2 9 3 9 7 Min CH 8 5 8 5 8 8 Maximum Working Pressure Sealed Systems bar psi 2 5 36 3 Maximum Domestic Hot Water Inlet Pressure bar psi kPa 10 0 145 1000 Minimum Domestic Hot Water Inlet Pressure bar psi kPa ...

Страница 7: ...p measure record Water flow rate at max setting measure record For condensing boilers only Condensate drain 23 24 For all boilers Complete sign hand over to customer For UK to comply with Building Regulations Part L1 Part 6 in Scotland the boiler should be fitted in accordance with the manufacturer s instructions Self certification that the boiler has been installed to comply with Building Regulat...

Страница 8: ...ondition This only occurs if the PREHEAT button is pressed and the display reads PREHEAT ON or PREHEAT TIMED When there is a demand for CH the heating system is supplied at the selected temperature of between 30o C and 80o C until DHW is drawn off The full output from the boiler is then directed via the diverter valve to the plate heat exchanger to supply a nominal DHW draw off of 24 kW 9 9 l min ...

Страница 9: ...e preparation commissioning and maintenance of domestic central heating and cooling water systems Health Safety Document No 635 The Electricity at Work Regulations 1989 The manufacturer s notes must NOT be taken in any way as overriding statutory obligations IMPORTANT This appliance is UKCA CE certificated for safety and performance Do not connect external control devices directly to this applianc...

Страница 10: ...pe It is a universal fitting to allow use of different brands of pipework Refer to Section 2 15 Compartment Installations A boiler installed in a compartment does not require ventilation However A boiler installed in a compartment must provide adequate clearances for servicing The compartment should also be fitted with a suitable label in accordance with current standards Refer to Section 1 14 1 8...

Страница 11: ...required for servicing For easy access to the pressure gauge a bottom clearance of 15 mm is required for a partial open door 395 mm 75 61 36 21 33 32 43 5 94 75 61 36 21 33 32 43 5 94 75 61 36 21 33 32 43 5 94 Refer to Section 2 17 278 mm 700 mm 100 mm Flue terminal 2 5 mm 2 5 mm from case Underside View Water and Gas Connections CH Flow DHW Outlet Gas DHW Inlet CH Return CH Circuit Drain Data Pla...

Страница 12: ...ust be installed on the return to the boiler If the system is not pressurised the cold water capacity must not exceed 143 litres Guidance on vessel sizing is given in Table 4 1 15 SYSTEM REQUIREMENTS CENTRAL HEATING PRV setting bar 3 0 Vessel charge pressure bar 0 5 to 0 75 System pre charge pressure bar None 1 0 System volume Expansion vessel litres volume litres 25 1 6 1 8 50 3 1 3 7 75 4 7 5 5 ...

Страница 13: ...rtant that the correct concentration of the water treatment products is maintained in accordance with the manufacturers instructions 2 If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing BS7593 2019 details the steps necessary to clean a domestic heating system 3 In hard water areas treatment to prevent lime scale may be necessary however...

Страница 14: ...enturi 215 Fan 217 Burner 218 Gasket Burner 219 Sump Clean Out Cover 223 Flue Manifold 224 Flue Manifold Top 227 Clamp Retaining Flue Turret 228 Hose Condensate Internal 229 Condensate Trap 231 Condensate Outlet Connection 239 Condensate Drain Tube 302 PCB 306 Ignition Detection Electrode 308 Ignitor Unit 309 Thermistor 313 Ignition Lead 324 Control Box Lid 325 Control Box Front 326 Blank Insert 4...

Страница 15: ...ipe CH Flow Return 15 1x Valve Filling Loop 16 1x Valve CH G3 4 x 22 mm Filling Loop 17 1x Cap Female 18 1x Valve CH G3 4 x 22 mm 19 1x Pipe DHW Inlet 20 1x Nut G1 2 x 16 Brass Flat 21 1x Gas Cock 22 1x PRV Clip Accessory Bag Contents 23 9x Washers 24 2x Wall Plugs 25 2x Screws 26 1x Flue Clamp Screw 24 25 23 1 2 3 4 5 6 Unpack and check the contents Refer to Valve Washer Template inside box lid 1...

Страница 16: ... is square to the wall 3 Drill the 2 mounting holes with a 7 5 mm 8 mm masonry drill and insert the plastic plugs provided 4 Locate 2 No 14 x 50 mm screws in the wall mounting plate one at each side in any of the 3 holes provided at each side and screw home Ensure mounting bracket is level 2 5 FITTING THE WALL MOUNTING PLATE 1 Lift the boiler onto the wall mounting plate and locate it over the 2 t...

Страница 17: ... 1 m 203129 2 m 211038 Balcony flue kit Ideal part no 208177 Soffit kit Ideal part no 211302 Raised horizontal flue kit Ideal part no 208290 pitched roof 0 6 m 208171 0 8 m 217442 Ideal part no WARNING It is critical that products of combustion cannot re enter the building The flue terminal must always have a free passage of air CAUTION White sections of the flue must not be visible outside Instal...

Страница 18: ...adjacent window 600 mm 14 Facing an opening into an adjacent building 2000 mm 15 At an angle to the boundary 90 300 mm 45 600 mm 16 Parallel to a boundary 300 mm 17 Below ground level open light well a Below ground 1 000 mm b Above floor level 300 mm c From side 300 mm d From facing surface 600 mm Only one reduction down to 25mm is allowed per installation Table 5 Flue Terminal Position Horizontal...

Страница 19: ...2 300 At an angle to the boundary 15 2 Parallel to the boundary 16 Facing the boundary 8 6 0 0 1 300 3 All measurements mm Boundary Boundary 600 Height Difference A Less than 300 B 300 Greater than 300 B 1500 300 625 fixed 2000 600 2000 690 Fixed Separation Distance B Height Difference A 300 600 600 2000 All measurements mm Refer to Table 5 Refer to Table 5 19 Installation and Servicing FLUE OUTLE...

Страница 20: ...iance manifold 3 Firmly hold the flue and push the turret on until it has travelled 30 mm ensuring the flue has not rotated or moved forward 4 Push the turret into the manifold ensuring the upper plastic lip is flush with the top of the manifold 5 Fully engage the clamp location section into the manifold location hole and rotate down onto the flange 6 Use the securing screws to secure the clamp to...

Страница 21: ...ce 9 Hold the flue steady and push the inner wall seal towards the wall until Mark 2 is just visible FITTING THE FLUE THROUGH THE WALL External Installation 1 Follow steps 1 5 from above 2 Push the flue through the 127 mm core drilled hole from the outside 3 Return inside the property and fit the inner wall seal to the flue 4 Pull the flue internally until Mark 1 is flush with the inner wall surfa...

Страница 22: ...y backwards Locate both clamp lugs into the flue manifold and secure to the flue manifold with the M5 retaining screw nm8739 min 25 o max 45 o MAX LENGTH 7 5m BOILER Flue Terminal weather collar pitched roof weather collar flat roof X 5 Push extension duct if required supplied separately into vertical connector Note Ensure turret sample points are servicable and all caps and plugs are fitted Fill ...

Страница 23: ...nnections The use of an externally run condensate drainage pipe should only be considered after exhausting all internal termination options as described previously An external system must terminate at a suitable foul water discharge point or purpose designed soakaway If an external system is chosen then the following measures must be adopted The external pipe run should be kept to a minimum using ...

Страница 24: ...roof insulation 68 mm Ø PVCU Strap on fitting Boiler with 75 mm sealed condensate trap Boiler with 75 mm sealed condensate trap Min Ø 19 mm Internal pipe Min Ø 30 mm Internal pipe Water Weather proof insulation Max 3 m external pipework Limestone chippings 500 300 25 2 rows of three Ø12 mm holes 25 mm centres 50 mm from the bottom of the tube facing away from the house Terminated and cut at 45º Mi...

Страница 25: ...hed correctly 7 Make sure that the PRV discharge pipe is correctly attached Make sure that the angle of the pipe run is sufficient to remove discharged water Filling Loop CH Flow DHW Outlet Gas Supply DHW Inlet CH Return Fit each union with the fibre seals provided WATER CONNECTIONS CH 1 Connect the CH flow service valve black handle and copper tail provided in the hardware pack to the threaded bo...

Страница 26: ...ling loop Top Up 1 Connect the filling loop ensuring the washers are in place 2 Loosen the auto air vent dust cap Refer to Section 3 24 3 Turn the DHW Inlet handle blue to the horizontal position 4 Slowly turn the filling loop handle green B to the horizontal open position until the pressure gauge reads between 1 to 1 5 bar 5 Turn the handle green B on the filling loop back to the closed vertical ...

Страница 27: ...service position unclip and swing back the installer wiring cover and latch into the retaining clips 4 Carefully pierce the grommet release the cable clamp via the screws and pull wiring through 5 Connect external wiring to the appropriate connections securely and then refit the cable clamp Once any wiring is completed to secure the boiler reverse the order above The link wire on the 230 V install...

Страница 28: ...le Room Stat on the RHS of the boiler installer connections labelled OpenTherm Frost Protection If parts of the pipework run outside the house or if the boiler will be left off for more than a day or so then a frost thermostat should be wired into the system This is usually done at the programmer in which case the programmer selector switches are set to OFF and all the other controls MUST be left ...

Страница 29: ... 3 3 2 1 2 Gas Valve 1 Diverter Valve 2 3 4 5 1 3 2 1 X7 X1 X2 X3 X4 X5 X6 X8 X9 X10 g y br b r bk r w br g y bk b g y g y bk b r r b Chassis Earth bk b b y bk p r p y bk p y bk b bk r or bk bk r bk p bk b gy bk v bk y b r bk v bk 1 2 3 5 4 DHW Flow Turbine v Flame Sensor o gy v w v o w gy Key bk Black gy Grey r Red g green b blue br brown g y green yellow o orange p pink v violet y yellow w white...

Страница 30: ...that this inlet pressure can be obtained with all other gas appliances in the property working Refer to Gas Supply page 10 Gas Pressure Test Point Gas Supply 2 24 COMMISSIONING AND TESTING Strain Relief If it is necessary to use an alternative mains cable to the one pre fitted then use the following guide Replacement wiring should comply with notes and be carried out by a qualified person Refer to...

Страница 31: ...the radiator symbol DOMESTIC HOT WATER 12 With the boiler firing rotate the DHW Temp Knob A clockwise until a target of 65 C is shown and fully open a DHW tap The boiler should continue to run and the current DHW temperature will be shown in the large digits underneath the tap symbol 13 Ensure that with the boiler operating the dynamic gas pressure is able to obtain maximum output Refer to Table 2...

Страница 32: ...60 C Room Thermostat or Timer Off Ready Press 2 29 INTELLIGENT PREHEAT FUNCTION If Preheat is switched to Timed then preheating will only occur when required rather than all the time The boiler learns the usage patten for DHW over a week and then times the DHW preheat to only operate during the usage periods from the previous week This improves the speed of response for DHW whilst also reducing th...

Страница 33: ...emaining 10 mins Exit Maximum DHW Rate Press The boiler will run at Maximum DHW Rate for 10mins as long as there is sufficient cooling load Target Fan Speed 1400rpm Actual Fan Speed 1400rpm Time remaining 10 mins Exit Minimum Rate Press The boiler will run at Minimum Rate for 10mins If the return temperature is under 40 C then the fan will run for 30s at maximum rate before ramping down over 60s t...

Страница 34: ...at water flows freely from them The display should show 2 Close all taps except the furthest one from the boiler and check that the boiler is firing at maximum rate This is factory set to give a DHW temperature rise of approximately 35o C at the flow rate stated on page 10 under operation 3 Reduce the DHW draw off rate to about 3 l min 0 7 gpm and check that the boiler modulates to deliver DHW at ...

Страница 35: ...plain the precautions necessary to prevent damage to the system and to the building in the event of the system remaining inoperative during frosty conditions 6 Explain the function and the use of the boiler heating and domestic hot water controls 7 Explain that due to system variations and seasonal temperature fluctuations DHW flow rates temperature rise will vary requiring adjustment at the draw ...

Страница 36: ...ke any suspect joints ensuring a gas tightness check is carried out if applicable and the water system is correctly refilled vented and re pressurised 2 Proceed to IMPORTANT IMPORTANT 1 If for any reason the condensate trap has been removed ensure the trap is refilled with water before re assembling 2 After completing the servicing or exchange of components always ensure all gas valve connections ...

Страница 37: ...Outlet Gas DHW Inlet CH Return CH Circuit Drain 3 3 DRAINING THE BOILER DOMESTIC HOT WATER CIRCUIT 1 Close all the DHW water isolating valves on the boiler inlet 2 To drain the domestic hot water circuit As there is no direct drain for the domestic hot water circuit depending on the location of the boiler opening the lowest hot water tap may drain this circuit However it must be noted that some re...

Страница 38: ...2 knobs and 4 buttons line up with the holes in the front panel 6 Re tighten the two retaining screws View from bottom of boiler View from top of boiler 1 2 3 3 4 BOILER FRONT PANEL REMOVAL REPLACEMENT 1 Remove the two sump cover retaining screws 2 Remove the sump cover 3 Lift the manifold upwards to clear the sump 4 Move the manifold to the left and pull down to remove 3 5 FLUE MANIFOLD REMOVAL R...

Страница 39: ... for blockage or damage 7 Clean the outside of the injector and use a small flue brush to clean the injector hole Do not use anything abrasive such as a file 8 Remove the screw and twist venturi anti clockwise to remove venturi assembly noting the orientation of the venturi in relation to the fan body Injector Nozzle 9 Inspect fan outlet sealing gasket and replace if necessary 10 Ensure the ventur...

Страница 40: ...osition 5 Carefully brush the ceramic burner with a soft non metallic bristle brush 1 1 Place thumb here Insert two fingers 1 SCAN for video 3 8 CLEANING THE HEAT EXCHANGER 1 Replace the sump cover prior to the water flush process 2 Thoroughly flush the heat exchanger by pouring water into the top of the combustion chamber ensuring the full surface of the heat exchanger is cleaned Avoid pouring wa...

Страница 41: ...r to Section 3 14 4 When servicing the boiler inspect the condition of the electrode and check the dimensions shown If there is damage to the electrode continue to follow steps below for replacment 5 Unplug the ignition lead from the electrode 6 Remove the earth lead from the electrode 7 Remove the 2 screws holding the electrode to the combustion chamber 8 Remove the electrode 9 Fit the new electr...

Страница 42: ...p 7 Open inlet outlet valves refill system and vent 8 Restart the boiler IMPORTANT Repressurise the system after cleaning the filter as loss of pressure will occur CAUTION Ensure that the magnet pocket is kept dry 42 Installation and Servicing Section 3 Servicing SERVICING 3 12 DHW FILTER DHW FLOW REGULATOR CLEANING REPLACEMENT 1 Isolate the DHW system 2 Turn the housing anti clockwise and pull fo...

Страница 43: ...d the clip is correctly located Refer to Section 3 2 2 3 16 SPARK GENERATOR REPLACEMENT 1 Disconnect the leads from the spark generator 2 Gently push up the generator to release the bottom clip from the gas valve mounting bracket 3 Lift the spark generator up and out of the bottom retaining location point Refer to Section 3 2 4 Fit the new spark generator and reassemble ensuring that the the earth...

Страница 44: ...sher are in place and reconnect gas and electrical connections 7 Refit the trap 8 Ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve Refer to Section 3 2 Refer to Section 3 19 3 18 DIVERTER VALVE ACTUATOR REPLACEMENT To remove the motor 1 Remove the condensate trap 2 Press Down on the hot keys until the diverter valve mid position is highlighted E...

Страница 45: ... Fit the new PCB 5 Re connect all plug connections 6 Reassemble 7 Turn power on display shows Installer Initialise spare PCB Yes Press Yes and the following screen is shown Select Boiler Brand Option 1 of 5 Logic Max Press Next until Logic Max is shown Press Select Select Boiler Brand Option 1 of 4 Combi Back Next Select Press Next until correct Boiler type is shown Combi Heat System UK or System ...

Страница 46: ...LACEMENT 3 22 PRESSURE GAUGE REPLACEMENT 1 Drain the boiler 2 Remove the boiler front see section 3 4 lower the control panel and remove the control box cover 3 Ensuring there is no pressure in the system unclip the C clip from the flow pipe port and remove the capillary connection together with O ring 4 Releasing the two retaining clips on the pressure gauge ease the pressure gauge through the fr...

Страница 47: ...m until the minimum system design pressure is reached 1 0 bar if the system is to be pre pressurised 3 Refer to Section 3 3 Refer to Section 3 2 1 Drain the boiler 2 Remove the expansion vessel 3 Firstly increase access area by disconnecting the 22 mm pipe connection at top of pump manifold and bottom of heat exchanger and remove pipe 4 The automatic air vent head is retained in the pump body with...

Страница 48: ...2 Refer to Section 3 2 Refer to Section 3 3 Refer to Section 3 10 Refer to Section 2 17 3 SCAN for video 1 Drain the boiler 2 Remove condensate trap 3 Remove the 2 hex screws securing the plate heat exchanger to the composite housings 4 Manoeuvre the plate heat exchanger out of the top LH or centre of the controls area Be aware of any water spillage 3 26 DHW PLATE HEAT EXCHANGER REPLACEMENT 5 Fit ...

Страница 49: ...nger note orientation Refer to Section 3 26 9 Loosen the nut above pump and rotate the pipe 10 If required remove expansion vessel connection hose Refer to Section 3 32 11 Remove the DHW inlet and CH return connection situated beneath the boiler 12 Remove the four torx head screws fixing the return manifold to the boiler sheet steel base 13 Lift the manifold assembly and remove from boiler 14 Twis...

Страница 50: ...ll the boiler 3 Refer to Section 3 2 Refer to Section 3 3 2 3 4 50 Installation and Servicing Section 3 Servicing SERVICING 3 29 CH WATER PRESSURE SWITCH REPLACEMENT 3 28 PUMP HEAD REPLACEMENT 1 Drain the boiler 2 Pull off the two electrical connections 3 Using a suitable tool pull out the metal retaining clip 4 Carefully withdraw the pressure switch 5 Fit the new pressure switch and reassemble En...

Страница 51: ...he new thermistor ensure O ring is fitted and replace clip 3 30 FLOW THERMISTOR REPLACEMENT Refer to Section 3 2 Refer to Section 3 3 Refer to Section 2 17 5 Reassemble 6 Refill the boiler 7 Check that the boiler operates in both DHW CH modes 2 3 51 Installation and Servicing Section 3 Servicing SERVICING Shown rotated 90º ...

Страница 52: ... 13 Remove the condensate rubber pipe Refer to Section 3 10 14 Remove the two heat exchanger fixing screws 15 Remove the heat exchanger slide out of location bracket 16 If replacement sump required Rotate heat exchanger assembly 180º Place new sump onto heat exchanger ensuring correct orientation and seal is in place Then gently apply pressure to the base of the sump at each tab fixing point and e...

Страница 53: ... vessel water connection pipe and remove the pipe 6 Support the expansion vessel and unscrew the 2 screws from the securing bracket located on the top of the boiler and remove Note the position of the bracket on the vessel 7 Remove the expansion vessel 8 Fit the new expansion vessel 9 Reassemble ensuring the O ring seal is in place and refit the retaining clip 10 Refill the boiler and check for le...

Страница 54: ...ollowing pages 54 Installation and Servicing Section 4 Fault Finding FAULT FINDING 4 1 MAIN MENU FAULT HELP Is the Boiler and CH System filled with water and all isolation system filter and radiator valves open YES Fill and vent the system and open all isolation valves then restart boiler Is the Flow Return Differential across the Boiler in excess of 30 C NO Check that the Pump is rotating freely ...

Страница 55: ... connection from gas valve to PCB for continuity If the wiring is OK then replace the PCB NO Replace Spark Generator and harness as necessary NO Replace Ignition Electrode and associated harness as necessary NO Replace Gas Valve NO Unplug gas valve Is resistance between outside pins between 4 kΩ 2 YES Replace Gas Valve NO YES Refer to Section 3 9 Refer to Section 3 9 4 4 FLAME ON BEFORE GAS VALVE ...

Страница 56: ...hen replace the PCB NO Replace Spark Generator and Harness as necessary NO Refer to Section 3 9 YES Check ignition electrode and associated harness for continuity visual condition and position Are these functioning correctly YES Check trap and condensate drain pipe work for blockage and rectify if necessary Boiler now working OK Replace Ignition Electrode and associated harness as necessary NO Rep...

Страница 57: ...nnect the wiring from the Flow Thermistor Check the resistance using a suitable multimeter connected across the Thermistor s terminal pins Is the Thermistor value correct YES Is the wiring securely connected to the 8 way connector X7 YES Replace PCB Fit a new Thermistor NO Securely connect the wiring to the PCB Is the wiring securely connected to the Flow Thermistor located in the Flow Pipe lower ...

Страница 58: ...O Securely connect the wiring at both the boiler and Outside Sensor NO 4 11 NO CH OPERATION BUT DHW WORKS OK Is Off shown underneath the rad on the display NO YES Press Mode button B until Off not shown Are CH Timer and Room Thermostat switched on YES NO Switch CH Timer and Room Thermostat On Are the Radiator Valves Open YES NO Open the Radiator Valves Is there 230 V AC SL1 YES NO No voltage from ...

Страница 59: ...emove turbine check for debris in turbine filter Replace turbine if necessary NO Adjust flow rates to achieve 35 C temp rise and check filter fitted in turbine is not blocked with debris NO Reconnect wiring or replace wiring harness if no continuity Correct pipe work YES NO Is wiring connected between PCB DHW turbine Re connect wiring NO YES Replace DHW turbine NO Re engage diverter head and secur...

Страница 60: ...RMISTOR FAULT Disconnect the DHW thermistor electrical connection Check the resistance using a suitable multi meter connected across the thermistor s terminal pins Temperature Resistance kΩ 25 o C 9 7 10 3 60 o C 2 4 2 6 Is the thermistor value correct YES NO Fit a new thermistor Is there continuity between the PCB and the Thermistor YES NO Check and replace wiring as necessary Replace the PCB 60 ...

Страница 61: ...ormance of this appliance Comprehensive spares parts information and details of approved Ideal Parts Distributors are available on idealparts com Our Parts team are also available to help with your Ideal Spare Parts enquiries on 01482 498665 When calling and to ensure we can provide you with the most accurate parts information please ensure you have the following to hand Boiler Model Appliance GC ...

Страница 62: ...62 Installation and Servicing Section 6 Benchmark to Commissioning ...

Страница 63: ...r with the manufacturer within the allotted time period It is essential that the boiler is serviced in line with the manufacturers recommendations at least annually This must be carried out by a competent Gas Safe registered engineer The service details should be recorded on the Benchmark Service and Interim Boiler Work Record and left with the householder Failure to comply with the manufacturers ...

Страница 64: ...hr or ft3 hr Central heating output left at factory settings Yes No If no what is the maximum central heating output selected kW Dynamic gas inlet pressure mbar Central heating flow temperature C Central heating return temperature C System correctly balanced rebalanced Yes COMBINATION BOILERS ONLY Is the installation in a hard water area above 200ppm Yes No Water scale reducer softener pre existin...

Страница 65: ...anufacturers instructions and BS 7593 It is only acceptable to not have undertaken this if the service engineers attendance visit was in between annual services to attend a non water facing component SERVICE INTERIM WORK ON BOILER delete as appropriate Date Engineer name Company name Telephone No Gas Safe registration No Max rate CO ppm CO CO CO Min rate CO ppm CO CO CO Where possible has a flue i...

Страница 66: ...lly check the integrity of the whole flue system to confirm that all components are correctly assembled fixed and supported Check that maximum flue lengths have not been exceeded and all guidance has been followed e g Gas Safe Register Technical Bulletin TB 008 where chimney flues are in voids The ECGA should be of the correct type as specified by BS EN 50379 3 2012 Prior to its use the ECGA shoul...

Страница 67: ...cted Check that no seals e g Those on flue extensions have been displaced during installation Rectify if necessary Turn off appliance and call Ideal Technical Helpline for advice The appliance must not be commissioned until problems are identified and resolved If commissioning cannot be fully completed the appliance must be disconnected from the gas supply in accordance with GSIUR Carry Out Flue I...

Страница 68: ...deal Technical Helpline 01482 498663 Ideal Consumer Helpline 01482 498660 Ideal Parts 01482 498665 idealheating com Ideal Boilers Ltd pursues a policy of continuing improvement in the design and performance of its products The right is therefore reserved to vary specification without notice At Ideal Heating we take our environmental impact seriously therefore when installing any Ideal Heating prod...

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