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6 721 814 551 (2019/09) UK/IE

Installation and Maintenance Instructions

Gas-fired condensing combi appliance

Worcester 2000

bar

GC2000iW C

Содержание Worcester 2000 Series

Страница 1: ...6 721 814 551 2019 09 UK IE Installation and Maintenance Instructions Gas fired condensing combi appliance Worcester 2000 2 1 3 4 0 bar GC2000iW C ...

Страница 2: ...ion 30 5 1 Position the appliance 30 5 1 1 Mounting bracket fixing 30 5 2 Appliance connections 31 5 3 Hanging the appliance 32 5 4 Flue turret adaptor installation 33 5 5 Electrical connection 34 5 5 1 Installer connections 35 5 5 2 Cable preparations 35 5 5 3 Key accessories 36 6 Commissioning 36 6 1 Pre Commissioning checks 36 6 2 Water treatment 37 6 2 1 Filling the appliance and adding Inhibi...

Страница 3: ...ce 59 10 3 Checking the strainer in the cold water pipe 59 10 4 Checking the plate heat exchanger 60 10 5 Checking the expansion vessel 60 10 6 Adjusting the operating pressure of the heating system 60 10 7 Removing the gas valve 60 10 8 Removing the pump 61 10 9 Removing the automatic air vent valve 61 10 10 Removing the motor of the diverter valve 61 10 11 Removing the heat exchanger 62 10 12 Re...

Страница 4: ...ponsibility of the designer installer of the flue to ensure this flue gas system operates correctly and in a safe manner H If you smell gas A gas leak could potentially cause an explosion If you smell gas observe the following rules Prevent flames or sparks Do not smoke use a lighter or strike matches Do not operate any electrical switches or unplug any equipment Do not use the telephone or ring d...

Страница 5: ...who manage and promote the scheme Visit hhic org uk for more information H Health and safety The appliance contains no asbestos and no substances have been used in the construction process that contravene the COSHH Regulations Control of Substances Hazardous to Health Regulations 1988 H Combustion and corrosive materials Do not store or use any combustible materials paper thinners paintsetc inside...

Страница 6: ...liance replacements on an existing system it is not necessary to zone the upstairs and downstairs separately compliance with the zone requirements can be achieved by a single room thermostat or programmable room thermostat While the system is drained down it is best practice to fit Thermostatic Radiator Valves TRV s to all radiators except the area where the room thermostat is sited British Standa...

Страница 7: ...o people and damage to property Accessories should be as per accessories list Minimum operational parameters are included in this document Using the appliance outside of its intended use may also invalidate the manufacturer s guarantee 3 2 Scope of delivery Fig 1 1 Wall mounted gas fired condensing combi appliance 2 Wall mounting bracket 3 Fittings pack 4 Condensate hose connector 5 Valves set 6 C...

Страница 8: ... dimensions For servicing purposes keep condensate and pressure release valve discharge pipes away from other hydraulic components Description Dimensions mm X Appliance width 400 Y Appliance height 724 Z Appliance depth 300 W Flue centre from appliance left side 200 D Flue centre from rear of appliance 125 Function From left case edge Diameter of pipe 1 Condensate Outlet 60mm 22mm Rubber push fit ...

Страница 9: ...mation 9 Worcester 2000 6 721 814 551 2019 09 3 7 Product overview Fig 3 Product overview 0010029397 001 1 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 24 23 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ...

Страница 10: ...uctions for the user 3 9 Standard accessories 3 9 1 Appliance accessories Table 5 Appliance accessories 3 9 2 Programmer timer accessories The programmers timers listed can be used with the appliances stated on the front of this manual Table 6 Control accessories Bosch EasyControl smart control system Table 7 EasyControl accessories Part number Description 7 716 192 746 Worcester CondenseSure 7 73...

Страница 11: ... the shower hose Bidets with direct hot and cold mains water can be used with the approval of the local water authority and must be the over rim flushingtypewithshroudedoutletstopreventthefittingofhandheld sprays Hot water Tapsandmixingvalvesmustbecapableofsustainingapressureupto 10 bar Hot water temperature and flow rate are affected by the size and insulation of pipe work making up the distribut...

Страница 12: ...ll Integral filling link An optional filling link accessory is available to fill the system Refer to filling link instructions for fitting and operation Filling primary sealed systems NOTICE Filling the primary sealed system The system must not be filled with salt based softened water Ensure the primary water filling point uses an untreated cold water connection from the mains supply before a wate...

Страница 13: ...hegasflowandpressurerequirements in addition to the demand from any other appliance being served Pipe sizing NG Gas pipe work Gas installation pipe work must be designed to ensure the pressure loss between the meter outlet NG table 20 Allowed mbar pressure drop Basic pipe sizing calculation Basic pipe sizing calculation This method is only a guide for more complex design please refer to latest ver...

Страница 14: ...d against heat transfer from the appliance DANGER Danger from explosive and flammable materials Storage of explosive and flammable materials Do not store flammable materials paper curtains clothing primer paint in proximity to the appliance NOTICE Damage to appliance Contaminated combustion air Do not use any cleaners containing chlorine or hydrogen halide i e spray cans primers cleaners paint and...

Страница 15: ...spacewiththeadditionofcupboards shelvesetc next to or around the appliance Do not store any combustible materials on or next to the appliance such as clothes towels paper or plastic bags Fig 11 Appliance minimum clearances Table 9 Appliance minimum clearances Appliances in compartments Follow the latest requirements of BS6798 and BS5440 and note Minimum clearances must be maintained An access door...

Страница 16: ...efer to the following example flue options for those maximum flue lengths Horizontal high level flue assembly Fig 12 Horizontal flue option Flue length L initial bend included in length calculation 60 100 202 603mm 80 125 N A Telescopic horizontal flue assembly Fig 13 Horizontal flue option Telescopic horizontal flue assembly A Flue length L adaptor bend included in length calculation 60 100 180 5...

Страница 17: ...orizontal flue Fig 18 Horizontal flue option Flue length L initial bend included in length calculation Maximum flue length as stated in Horizontal maximum flue lengths High level horizontal flue with additional 90 elbow Fig 19 Horizontal flue option Flue length L initial bend included in length calculation Maximum flue length as stated in Horizontal maximum flue lengths minus the 90 bend equivalen...

Страница 18: ... be a minimum of 500mm and must not exceed the maximum straight length for a horizontal Ø 60 100mm flue with a 60mm plume management system as stated previously Horizontal plume management runs The initial horizontal run from the terminal elbow must have a minimum10 fallback stoptabsintheelbowpreventlessthan10 to the appliance for proper disposal of condensate Any further horizontal runs after an ...

Страница 19: ...The terminal must be at least 1 500mm from the opening or vent whensitedbelowthewindowor600mmwhensitedtoeitherside or above 7 400mm measured diagonally from a pitched roof or 500mm in regions with heavy snow fall 300mm measured vertically from the air intake to the closest intersection with the roof 8 1 200mm separation measured between a vertical flue and a horizontal flue terminal 9 Forthepurpos...

Страница 20: ...NE SKYLIGHT DORMA 1000 600 300 300 300 BELOW GROUND OPEN LIGHT WELL 15 2 2 1 1 1 200 25 100 16 25 100 10 300 600 BOUNDARIES 1 2 1 2 9 100 25 25 100 25 25 100 25 600 600 2000 OPENING OPPOSITE TOP BOUNDARY LINE 3 4 5 11 11 11 7 10 10 10 5 1 200 25 75 25 75 600 600 1000 1200 600 300 300 300 300 300 300 300 300 200 200 300 300 300 25 300 1500 1200 13 0010021442 002 5 300 150 8 300 TOP ...

Страница 21: ... surface such as the ground floor level or roof surface If the terminal section is less than 150mm and has two screws securing it to the elbow the terminal section will not require a supporting bracket 11 300mm above below and either side of an opening door air vent or opening window 12 Below ground level in an open lightwell The flue must be at least 600mm from the opposing surface and have at le...

Страница 22: ...entric flue terminal positions unless the flue position is specified in figure 28 Plume re direct and plume management terminal positions Terminals must be positioned so to avoid combustion products entering the building Supporttheflueatapproximatelyonemetreintervalsandatachange of direction use suitable brackets and fittings Fig 28 Plume re direct and plume management terminal positions BOUNDARY ...

Страница 23: ...agementkittheairintakemeasurementcanbe reduced to 150mm providing the flue exhaust outlet has a 300mm clearance 11 Below balcony or overhang The air intake clearance can be reduced to 150mm providing the flue exhaust outlet has a 200mm clearance 12 1 200mm between terminals facing each other1 13 Internal externalcorners Theairintakeclearancecanbereduced to 150mm providing the flue exhaust outlet h...

Страница 24: ...e pipe work NOTICE General consideration Where a new or replacement appliance is being installed access to an internal gravity discharge point should be one of the factors considered in determining appliance location Condensate pipe connection at the appliance The condensate pipe must have a nominally outside diameter of 22mm plastic pipe Ensure there are no blockages in the pipe run Ensure that t...

Страница 25: ... and rainwater drainage system Refer to BS 6798 for more information on condensate disposal NOTICE Grey water recovery system Contamination of recovered water Condensate disposal shall not be allowed into a grey water recovery system that is intended for re use External disposal considerations NOTICE Freezing conditions Frozen condensate will block the condensate drain pipe and stop the appliance ...

Страница 26: ...ue to the blocking and backing up of the condensate Good Practice The following guidance indicates the good practices that must be maintained for the Installation and Maintenance of a product Rain water down pipe with external air break Figure 32 Refer to following example to dispose of condensate to a rain water down pipe An air break or rain water hopper must be utilised between the appliancecon...

Страница 27: ...way from building footings Thecondensatedrainagepipemayberunaboveorbelowtheground to the soak away The following example shows drainage pipe run above ground The soak away must use a minimum of a 100mm Ø plastic tube with tworowsofthree12mmholeson25mmcentresand50mmfromthe bottom of the tube The holes must face away from the house The tube must be surrounded by at least 100mm of limestone chippings...

Страница 28: ... pipe 1 or 3 should be run in at least 15mm diameter copper pipe or pipe made of a material that will withstand PRV discharge temperatures and pressures and which complies with BS 5254 or BS EN 1451 Plastic pipe work must be properly supported with a maximum of 300mm between supports to prevent sagging and run downwards away from the appliance Thepressurereliefshoulddischargeawayfromanyelectricalo...

Страница 29: ... to reduce the risk of contaminants entering the appliance Follow the guidance of BS7593 Inhibitor Add a suitable inhibitor or combined inhibitor anti freeze if the system is exposed to freezing conditions to the heating system in accordance with the DWTA code of practice and manufacturer s guidelines ProductsapprovedtotheBuildCertstandardaredeemedascompatible with the components and equipment wit...

Страница 30: ...ance installation point This will allow access for installation normal use and servicing Before installing the appliance ensure that the system has been cleaned 5 1 Position the appliance WARNING Ensure the mains gas supply is isolated before starting any work and follow all relevant safety precautions Appliance positioning Ensure the appliance is mounted onto a flat fixed rigid surface capable of...

Страница 31: ...ting template 4 Primary fixing points D 125mm 5 2 Appliance connections WARNING Appliance gas connection Ensure the mains gas supply is isolated before starting any work and follow all relevant safety precautions NOTICE Appliance hydraulic connections Ensure all water pipe work to be connected are isolated drained and follow all relevant safety precautions Be careful of plastic components when usi...

Страница 32: ...for the gas supply All pipe connections in the heating system must be able to withstand a pressure of 3 bar and 10 bar in the DHW circuit Install service valves and gas isolator To fill and drain the heating system install a drain valve at the lowest point of the system Install the Pressure Relief Valve discharge pipe to the latest advice in BS6798 Always route discharge pipes with a continuous fa...

Страница 33: ...th the flue kit for complete installation instructions For plume management effective lengths and the effective flue lengths chapter 4 4 Additional notes and reminders Ensure that all cut lengths are square and free from burrs Ensure that the flue and seals are not damaged The flue is sealed when assembled correctly the components are pushed fully home and secured Thefluerisesfromtheapplianceatana...

Страница 34: ...al supply Any additional components that are connected to the appliance that require 230 Volts must be connected to the same supply as the appliance The correct type of RCD must be employed where additional protection is required that is suitable for a low energy DC modulating pump according to IET wiring regulations External fuse 3 Amps When stripping the wires ensure copper strands do not fall i...

Страница 35: ...rnal accessories terminal strip Table 16 Terminal strip for external accessories 5 5 2 Cable preparations NOTICE Damage to control unit Small pieces of wire can cause shorts and damage to electronics When stripping wires always ensure copper strands do not fall into the control box Low voltage signal cables example figure 49 Fig 49 Low voltage signal cables preparation 0010022207 001 0010029486 00...

Страница 36: ...Check that the service and water pipes are connected correctly Check the gas type specified on the identification plate matches that of the gas supply and that the gas supply is properly purged Check that the appliance is filled with water and under pressure 1 5 bar and that there are no leaks Check that the electrical connections of the appliance are correct Mains electrical supply 230V 50Hz Comp...

Страница 37: ... same pressure as the appliance internal expansion vessel refer to separate instructions supplied with the extra expansion vessel Filling the system Sealed systems NOTICE Salt based softened water must not be used to fill the central heating system Check drain cocks and manual air vents are closed and all radiator valves are open Add a suitable inhibitor or combined inhibitor anti freeze if the sy...

Страница 38: ...ss Select constant speed control mode Select pump curve III For additional pump functions Press and hold to Activate the pump venting function press for 3 seconds Activate manual restart press for 5 seconds Lock unlock button press for 8 seconds 6 4 Starting the appliance NOTICE Damage to appliance or system Running the appliance Never run the appliance when the appliance system is empty or partia...

Страница 39: ...urrent flow temperature The symbol flashes in the display in DHW mode The B symbol also appears if the burner is active Setting comfort mode or ECO mode In comfort mode the appliance is continually maintained at the set temperature servicefunction3 CA Thismeanstherewillbeashort delay when drawing DHW However the device will switch on even if no DHW is being drawn In ECO mode heating up to the set ...

Страница 40: ...he display shows the maximum percentage of the power 100 alternating with the flow temperature The appliance will ramp up to maximum output in approximately 30 to 35 seconds 6 5 2 Setting the appliance to minimum Whilst the appliance is already in chimney sweep mode maximum output Press the button to set the appliance to minimum output The display shows the minimum percentage of the power alternat...

Страница 41: ...ential Gas Safety Ensureallothergasappliancesareisolatedwhencarryingoutthegas rate check on the appliance Maximum output mode A hot water outlet can be opened to prevent the appliance from shutting down due to high temperature during testing Ensure all other gas appliances are isolated Press the ok button until the C symbol appears on the display The display shows the maximum percentage of the pow...

Страница 42: ...use the analyser must have been calibrated as specifiedbythemanufacturer Theinstallermustbecompetentinthe use of the analyser Check and zero the analyser in fresh air as specified by the manufacturer The air gas ratio valve is factory set and must not be adjusted during commissioning unless this action is recommended following contact with the Worcester Bosch Group help line 0330 123 3366 Fig 56 C...

Страница 43: ...arrying out the combustion check is equipped with a calibrated Flue Gas Analyser conforming to BS 7967 and is competent in its use Flue gas analysis Ensure that the gas inlet pressure has been checked and is satisfactory Refit the test point plugs after the test has been completed The flue gas analysis performance of the appliance can be checked via the flue turret adaptor sample points Refer to f...

Страница 44: ...nce Advise the customer where they can find information on the Worcester Bosch Group website www worcester bosch co uk Ensure that all documentation is left with the appliance or homeowner Appliance documentation Controls documentation Any other equipment documentation that is connected to the appliance or system Appliance not in use If the appliance is not going to be used immediately and may be ...

Страница 45: ... and checked in the service menu It includes Menu 1 information menu Menu 2 not used in UK IE Menu 3 factory settings Menu 4 special features Menu 5 limit values Menu 6 function checks Menu 0 manual operation 8 1 Operating the service menu Selecting and setting the service function If a key is not pressed for 30 minutes the system exits the selected service function automatically To select a servi...

Страница 46: ...perature C 1 b8 Current thermal output as a of the maximum rated heat output in heating mode During DHW heating values greater than 100 may be displayed 1 C1 Ionisation current A While the burner is operating 2 A OK 2 A faulty While the burner is switched off 2 A OK 2 A faulty 1 C2 Current pump output as of rated pump output 1 C4 Current outside temperature with outside temperature sensor connecte...

Страница 47: ...cent Measure gas flow rate Compare measured result with the setting tables page 77 Correct the setting in the case of any deviation 3 C4 Turbine signal delay 2 16 0 25 seconds Thedelaypreventssuddenchangesinthewater supply pressure from causing the burner to briefly operate although no water is drawn off 3 C5 Delay of DHW mode solar mode 0 not active 50 seconds DHW mode will be suppressed until th...

Страница 48: ...sed time 4 A5 Inspection interval according to hours run 10 60 x 100 hours This service function is only available if service function 4 A4 is activated 01 After this interval has expired the display indicates that an inspection is due via the service display 1018 4 A6 Inspection interval according to elapsed time 1 72 months This service function is only available if service function 4 A4 is acti...

Страница 49: ... 10 C This service function is only available if the frost protection function service function 4 b1 was activated If the outside temperature does not exceed the frost threshold temperature then the heating pump in the heating circuit switches on system frost protection 4 E1 LCD backlighting OFF backlightingswitchesoff2 minutesafter the last time a key was pressed ON backlighting permanently on 4 ...

Страница 50: ...ings adjustment range Remark restriction 6 t1 Permanent ignition OFF switched off ON switched on Testing the ignition by means of permanent ignition without gas supply To prevent damage to the ignition transformer Leave the function switched on for a maximum of 2 minutes 6 t2 Permanent fan operation 0 100 Fan running without gas supply or ignition 6 t3 Permanent pump operation heating pump 0 100 I...

Страница 51: ...n tested by qualified engineers Aftereachservice theserviceintervalrecordsheetattherearofthis manual must be completed See the following instructions for detail of some of the service requirements Check all joints and connections in the system and remake any that show signs of leakage Refill and re pressurise if applicable as described in the commissioning section When it is frequently necessary t...

Страница 52: ...chieved Checkthegassupplyworkingpressuresinthesystemconformtothe readingsshowninthetableshowninsection 6 6 Checkinggasinlet pressure 9 6 Flue gas analysis NOTICE Combustion testing Combustion testing must be carried out by a competent person Testing must not be attempted unless the person carrying out the combustion check is equipped with a calibrated flue gas analyser conforming to BS 7967 and is...

Страница 53: ... replaced if disturbed Other gaskets seals must be checked and replaced where necessary Do not attempt the cleaning procedure unless new gaskets and seals are available 9 8 1 Cleaning the heat exchanger There is an optional tool available to assist in cleaning the heat exchanger part number 7 733 600 091 Checking the electrodes and cleaning the heat exchanger CAUTION Risk of burns due to hot surfa...

Страница 54: ...vice 1 Remove the gasket 2 Remove electrode set and check electrodes for contamination clean or replace if required 3 Remove the burner Fig 65 Removing the burner Remove the top baffle using the lifting device Fig 66 Remove the top baffle Remove the bottom baffle using the lifting device Fig 67 Removing the bottom baffle 0010015934 001 1 2 3 2 1 0010015929 003 0010002794 002 0010002795 002 ...

Страница 55: ...e heat exchanger with water Reopen inspection aperture and clean the condensation catch pan and condensate connection NOTICE Material damage due to hot flue gas Hotfluegascanleakthroughdefectivegaskets damagethedevicesand endanger safe operation Each time the burner is opened replace the burner gasket Fig 65 item 1 and all other gaskets affected by the measure Ensure that the gaskets are seated ex...

Страница 56: ...e left of the condensate trap 2 Actuate the locking lever at the bottom to release the siphon 3 Pull the condensate trap down to remove it and drain it Fig 71 Removing the condensate trap 1 Unscrew the cleaning cap 2 Check the gasket for cracks deformation or breakage and replace if required 3 Clean the condensate trap and check that the aperture towards the heat exchanger is clear 4 Insert a new ...

Страница 57: ... inserted the pin is visible in the recess and is flush with the top edge of the gasket Fig 75 Pressing on the gasket Replace the condensate trap and check for tightness Check the condensate hose and clean if required Grease the hose during assembly and check tightness of connection Fig 76 Inserting the condensate trap Fill the condensate trap with approximately 150 ml water 0010019151 001 1 2 3 2...

Страница 58: ... rated output Fig 77 Setting the CO2 or O2 content above SIT valve below Honeywell valve Re check settings at maximum and minimum rated output and re adjust if required Seal the gas valve minimum adjustment Exit the chimney sweep mode Enter the CO2 contents in the servicing record 10 Replacement parts WARNING Mains supplies Isolate the appliance Turn off the gas supply and isolate the mains electr...

Страница 59: ...careafterdrainingtheappliancetoprotectequipment property from residual water content within components Many of the tasks in this section require that the appliance be isolated and drained This will be indicated in the manual if required Refer to figure 79 Open the drain plug using a 8mm hex key use a suitable container to collect any water Fig 79 Drain point 10 3 Checking the strainer in the cold ...

Страница 60: ...s cold Top up the water until the indicator is between 1 bar and 1 5 bar again If pressure is not being maintained Check tightness of expansion vessel and heating system 10 7 Removing the gas valve Close gas isolator Unplug the plug Undo the union nut on the top of the gas valve Pull off the gas hose and pressure reducer Undo the union nut on the bottom of the gas valve Fig 83 Pull of the plug and...

Страница 61: ...ly 2 Fig 85 Removing the pump 10 9 Removing the automatic air vent valve 1 Remove the clip 2 Pull out the automatic air vent valve Fig 86 Removing the automatic air vent valve 10 10 Removing the motor of the diverter valve Removing the automatic air vent valve Removing the motor of the diverter valve 1 Undo clip 2 Remove the motor of the diverter valve Fig 87 Removing the motor of the diverter val...

Страница 62: ...sconnect the cable 1 Unclip the flue pipe 2 Push the flue pipe up 3 Remove the heat exchanger Fig 89 Removing the heat exchanger 10 12 Replacing the control unit The devices are delivered without code plug When replacing the control unit ensure the code plug supplied is used Flip the electronics panel down Fig 46 page 35 Replace the control unit Fig 90 Replacing the control unit Open the cover on ...

Страница 63: ...heck Earth continuity Short circuit check Polarity Resistance to earth 11 1 General information Indicators fault category O Indicators signal operating conditions during normal operation Indicators can be read out with the service function 1 A1 Non blocking faults fault category R The heating system remains in operation with non blocking faults The H symbol is shown on the display Fig 93 Example n...

Страница 64: ...sary 224 224 B V Flue gas temperature limiter or heat exchanger temperature limiter has tripped If the blocking fault persists for a prolonged period it becomes a locking fault Check position of isolation valve in heating circuit open if required Check water pressure if necessary top up until the preset pressure is reached Check the temperature limiter and connecting lead of the heat exchanger for...

Страница 65: ...lict between appliance electronics and code plug Check software version of appliance electronics and code plug Replace appliance electronics or code plug 237 V System fault Check and replace code plug Check and replace the appliance electronics 238 V appliance electronics faulty Check and replace the appliance electronics 242 V System fault appliance electronics Reset control appliance burner cont...

Страница 66: ...on Constant speed mode curve III 342 BC Temperature increase in DHW mode too rapid If the water pressure is too low top up with water and vent the system Open service valves in the cylinder charging circuit Replace the diverter valve cylinder primary pump 350 B Flow temperature sensor short circuit Check and replace flow temperature sensor and harness Section 13 2 1 Check and replace the connectin...

Страница 67: ...eck plug in connectors and cable harness for contact Replace cylinder temperature sensor 1014 Ionisation current is too low 1017 R Water pressure too low Check water pressure if necessary top up until the preset pressure is reached Check pressure sensor replace if required 1018 W Service time expired Carry out maintenance 1021 R DHW temperature sensor faulty Check plug connect correctly Check inst...

Страница 68: ... appliance control unit is faulty and must be replaced 2915 V System fault appliance electronics Reset appliance Ifthefaultpersistsfollowingareset thecontrolunitisfaultyandmustbereplaced 2916 V System fault appliance electronics Reset appliance Trigger heat demand End heat demand If the fault persists the control unit is defective and must be replaced 2917 V No flame signal when checking the combu...

Страница 69: ...nect plug for speed control to the fan Connect plug for power supply to the fan Check fan harness Check and replace control unit 2943 Mains voltage too low Establish supply voltage of at least 196 VAC 2945 V Too many short heat demands in a short time Reset appliance factory reset Increase restart blocking time Make sure that at least one thermostatic valve is open Check and replace faulty heating...

Страница 70: ...g connected to stat Check resistance of stat Replace if required Check continuity of harness Replace if required 2964 B Insufficient flow rate in heat exchanger Supply sensor is not assembled on the supply pipe Supply sensor does not make proper contact to the supply pipe System is not filled with water No water flow because CH system is closed No water flow because pump is not operating correctly...

Страница 71: ... blinking Abnormal running mode pump stopped but still functioning The pump has stopped due to external failure Under or Over voltage Mains supply voltage U 160V or U 280V Check mains voltage supply to pump 160V U 280V The pump will restart itself afterthedisappearanceofthe external failure Overload of motor Friction due to particles and or impeller blocked with debris and or too high viscosity Ch...

Страница 72: ...ly pressure Check the flue system clean or repair if required Check the gas air ratio Check the ratio control valve replace if required Delayed ignition poor ignition Check the ignition transformer function for misfiring in Menu 6 replace if required Check the gas type Check the gas supply pressure Check operation of meter governor Check the power supply Check the electrodes replace if required Ch...

Страница 73: ...is symbol indicates that the product must not be disposed of with other waste but be taken to the waste collection centers for treatment collection recycling and disposal procedure The symbol applies to countries with electronic waste regulations for example the European Waste Electrical and Electronic Equipment Directive 2012 19 EU These regulations determine the framework for the return and recy...

Страница 74: ...ing pressure PMW bar 10 10 Minimum mains inlet pressure working for max flow bar 1 5 1 5 Minimum mains inlet pressure working for operation bar 0 3 0 3 Minimum required flow to activate DHW demand l min 2 5 2 5 DHW temperature range C 35 60 35 60 Maximum cold water inlet temperature C 23 23 Maximum DHW flow rate 35 C rise 15 3 l min 10 12 Maximum DHW flow rate 40 C rise 15 l min 9 10 8 Flue Flue g...

Страница 75: ...mum and maximum permissable pressure refer to Gas pressure within the system section 6 6 2 The Gas Rate provided assumes the accepted NG averaged calorific value of 34 9 MJ m3 net 3 Appliances are fitted with a flow regulator set to achieve a 35 C temperature rise A 40 C temperature rise is possible at lower flow rates 4 Protection rating may change depending on the control unit s used on this app...

Страница 76: ...tch 6 Flow limiter cartridge 7 Diverter valve 8 Exhaust gas temperature limiter 9 Gas valve 10 Flow temperature sensor 11 Fan 12 Heat exchanger flow temperature sensor 13 Earth connection 14 Ignition electrode 15 Flame sense electrode 16 Heat exchanger high limit stat 17 Ignition transformer 18 Pump 19 Low voltage I Os for controls 20 Code plug interface Not used 0010029492 001 N L 5 N L 230V IN 5...

Страница 77: ... C Display percentage Heat Output kW Heat input kW Gas flow rate l min 80 20 0 20 40 35 0 75 18 7 19 13 32 8 70 17 5 17 85 30 6 65 16 2 16 58 28 4 60 15 0 15 30 26 3 55 13 7 14 03 24 1 50 12 5 12 75 21 9 45 11 2 11 48 19 7 40 10 0 10 20 17 5 35 8 7 8 93 15 3 30 7 5 7 65 13 1 25 6 2 6 38 10 9 20 5 0 5 10 8 8 19 4 8 4 92 8 4 Display percentage Heat Output kW Heat input kW Gas flow rate l min 68 20 0...

Страница 78: ... no what is the maximum central heating output selected kW Dynamic gas inlet pressure mbar 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 existing Fitted Not required Brand Product Yes No If yes DHW expansion vessel pre existing Fitted Not required...

Страница 79: ...Yes Yes Yes No Yes Yes Yes Yes Yes Year 3 ________________________ ___________________ Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Year 4 ________________________ ___________________ Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Year 5 ________________________ ___________________ Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Year 6 ________________________ ...

Страница 80: ... rate Were parts fitted Parts fitted Comments Signature OR Yes No m h ft h Where possible has a flue integrity check been undertaken in accordance with manufacturers instructions and readings are correct System inhibitor concentration has been checked and appropriate action taken in accordance with BS 7593 and boiler manufacturers instructions Telephone No Gas Safe registration No Company name Dat...

Страница 81: ... rate Were parts fitted Parts fitted Comments Signature OR Yes No m h ft h Where possible has a flue integrity check been undertaken in accordance with manufacturers instructions and readings are correct System inhibitor concentration has been checked and appropriate action taken in accordance with BS 7593 and boiler manufacturers instructions Telephone No Gas Safe registration No Company name Dat...

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Страница 84: ... Kingdom Tel 0330 123 9559 worcester bosch co uk TECHNICAL SUPPORT 0330 123 3366 RENEWABLE SUPPORT 0330 123 9229 CONTROLS AND CONNECTIVITY TEAM 0330 123 3641 APPOINTMENTS 0330 123 9339 SPARES 0330 123 9779 LITERATURE 0330 123 9119 TRAINING 0330 123 0166 SALES 0330 123 9669 ...

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