Worcester 35CDi Mk I Manuale di Servizio

35CDiWALL MOUNTED COMBINATION BOILER FOR CENTRAL HEATINGAND MAINS FED DOMESTIC HOT WATERINSTALLATION ANDSERVICING INSTRUCTIONSThis appliance is for us

10Fig 13 - Pictorial Wiring Diagram121314151110987651326 GroupedWiresto Top ofBoilerFromConnectionST12BrownBlueTo Flow Switch2 Green2 Pink2 Orange2 Re

11Fig 14 - Functional Wiring DiagramRegulator ValveMain ValveMain ValvePump Control BoardFlow SwitchCH SensorDWH SensorAir Pressure SwitchFlame SenseO

12Fig 17- Front View of Appliance (control panel removed)1-Fig 222-Fig 2334-Fig 5728-Fig 5527-Fig 5526-Fig 4225-Fig 3624-Fig 4323-Fig 5922-Fig 5621-Fi

11.1. General.11.1.1. The appliance is suitable for sealed systems only.11.1.2. The flue must be installed in accordance with BS5440:1.11.2. Unpacking

11.6.4. Pipework can only run horizontally outside the limits ofthe casing.11.6.5. It is important that the pipes are not fixed near theappliance usin

15Fig 26-Service Valve OperationFig 28-Casing Bottom Panel FixingFig 27-Relief ValveCOLDWATERINLETCHFLOW&RETURNOPEN CLOSEDOPEN CLOSED9101265431.

11.8.3. Mark and cut the air and flue ducts to length. Alwayscheck the dimensions before cutting. Do not cut the drilled or theexpanded ends of the du

1711.10.5. Refit the fan in the appropriate position ensuring thatthe flue duct enters the fan outlet by 20mm before tightening theclamp as shown in F

12.6. Remove the cap from the front of each pump and turn theexposed shaft about half a turn using a flat bladed screw driver.Replace the caps. Refer

Balance the system so that the specified temperature differenceis obtained. Shut the radiators and adjust the bypass until thesame temperature differe

1.1 Gas Safety (Installation & Use) Regulations 1994 (Amended1996) : It is the law that all gas appliances are installed by acompetent person in a

14.4.5 Clean the primary heat exchanger. Cover the burnermanifold. Remove any deposits from the heat exchanger gainingaccess from the top and bottom.

Replace any components removed from the appliance in thereverse order using new gaskets/O-rings/sealant wherenecessary. Always check that any electric

15.4.9. Inlet Water FilterDrain the hot water circuit. Refer to 15.3.2. Remove the bottompanel. Lower the facia.Disconnect the inlet water pipe at the

15.4.17. CH SensorRemove the inner casing cover.Carefully pull off the connections and release the clip to removethe sensor. Apply heat transfer paste

Use new seals and gaskets where necessary. Refill and pressuriseas described in Section 12.4-8 - Commissioning. Refer to Fig 59.15.4.23. Auto Air Vent

25Fig 59-Domestic Hot Water Heat ExchangerFig 60-Primary Heat Exchanger FixingFig 61-Air Flow Switch512431. Fixing Clip (2)2. Domestic HotWater HeatEx

1 E02-827 Gas Valve - NG Dungs1 E02-828 Gas Valve - LPG Dungs2 E02-825 Ignition Electrode Buccleugh3 E02-892 Flame Sense Electrode Vernitron4 E02-889

27MAIN SWITCHONGreen LightOnRoomthermostatand/or mainsprogrammer(or link) OnANDElectronicfaciaprogrammer(if fitted) OnANDST13 link InANDCH controlknob

28Above9°CCommence normalcentral heating modeuntil temperaturereaches 30°C5°Cto9°CBelow5°CNo demandand primarytemperaturebelow 8°CInternal“Autofrostat

No lights at allOther faults not covered by aboveFAIL POINT C FAIL POINT BFAIL POINT EFAIL POINT JFAIL POINT KFAIL POINT AFAIL POINT DFAIL POINT FFAIL

2.5 Flue2.5.1. The flue can be to the right, left or rear.2.5.2. The flue terminal, on the outside wall, must not beobstructed or damaged.2.5.3. A te

30Is the facia on/offswitch turned on?`(Clockwise)Is there a 230V AC livesupply acrossTerminal ST12 pins Land NHas fuse F1 blown?Replace fuse and inve

31Red diode isdamaged. Replacecontrol board.(Section 15.4.11)Replace control board.(Section 15.4.11).With a hot water tapfully open, does theboiler ig

32Remove front panel.Reset and restart theboiler. Can a flame beseen through the spyglass?Turn off boiler. Removeinner cover andcombustion chambercove

33Remove multiwayconnector from boardposition ST16. Testresistance acrosscontacts 17 and 18(yellow & either blackwires). Is it between 1kohm and 3

34Does the fan run at all before the faultoccurs?Does this fault onlyoccur in CH or DHWmode?Turn off boiler. Removemultiway connectorfrom board positi

35Light indicationduring fault notcovered by abovedetails.Control board is likelyto be wet or damagedor malfunctioning.Check for wet board orconnectio

This booklet is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in

43. Technical DataNOMINAL BOILER RATINGS (10 Minutes After Lighting)BOILER ADJUSTED FOR G20 (Natural Gas)OUTPUT INPUT (Net)BURNER SETTINGGAS RATEPRESS

5PERFORMANCE SPECIFICATIONSPRIMARY WATER CAPACITY 3.0 litres MAXIMUM MAINS INLET PRESSURE 10 bar MINIMUM MAINS INLET PRESSURE (working) for max. hot w

64.1. The appliance may be installed in any room but refer to therequirements of the current IEE regulations and, in Scotland, therelevant electrical

5.3. The terminal must not cause an obstruction nor thecombustion products a nuisance.5.4. Under some climatic conditions the terminal might steam.Pos

8.1. If necessary reference should be made to the local watercompany before connecting the appliance.8.2. Devices which would prevent the flow of expa

10.10. On very rare occasions an external frost thermostat might be considered where parts of the system are remote from theappliance. Refer to Worces