Yeoman PR1145 instruction manual Ignition lead and piezo, Piezo, Gas valve

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SERVICING INSTRUCTIONS

REPLACING PARTS

3.3The pilot unit can now be removed by undoing the two screws (see Diagram 6).

6

AR1445

3.4Reassemble in reverse order, do not overtighten.

NOTE: SPECIAL CARE SHOULD BE TAKEN WHEN REPLACING THE THERMOCOUPLE TO THE BACK OF THE GAS VALVE TO ENSURE THAT THE SENSOR WIRES FOR THE GAZCO FLUE SURE SYSTEM ARE NOT DISCONNECTED.

4.Ignition lead and piezo

4.1Gain access to the back of the pilot assembly (see Section 2) and disconnect the ignition lead from the electrode.

4.2Remove the front cover from the control valve (see Diagrams 7 and 8) and disconnect the other end of the ignition lead from the valve body. Note the existing route of the ignition lead.

7

8

AR0916

4.3Replace with a new ignition lead following the same route as the old one. Replace the valve cover and the pilot assembly.

4.4Check operation of the new ignition lead.

5. piezo

The piezo assembly used on this appliance is not serviceable and is unlikely to fail.

6.Gas valve

6.1Turn the gas supply off at the isolation device.

6.2Disconnect the 2 x 8mm and 1 x 4mm gas pipe fittings at the back of the gas valve (see Diagram 9, A) and disconnect the thermocouple (see Diagram 9, B).

9

C

AR0915

CB

A

AR0943

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Image 18 Contents
Yeoman Exe Midi Contents Pass Fail APPLIANCE COMMISSIONING CHECKLISTFLUE CHECK GAS CHECKUser Instructions GeneralLighting the Stove Turning the Stove offUpgrading the Stove Cleaning the stove Advice on Handling and Disposal of Fire CeramicsUser Instructionsheading Fuel bed arrangementInstallation Details HOT SurfacesInstallation Instructions Technical SpecificationPacking Checklist Flue and Chimney Requirements Installation of the gas supplySITE REQUIREMENTS LocationSafety precautions InstallationControl upgrade Installation of the stoveFuel BED Arrangement For full instructions see User Instructions, Section Commissioning CommissioningServicing Instructions Servicing RequirementsCheck Ignition Functional Check Flame Failure Functional CheckMain burner Replacing PartsGeneral Pilot unitIgnition lead and piezo PiezoGas valve Magnetic safety valve Main injectorPrimary aeration plate Changing between gas types Basic Spares ListSERVICE RECORDS