Yeoman PR1145 instruction manual Magnetic safety valve, Main injector

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SERVICING INSTRUCTIONS

REPLACING PARTS

6.3Undo the single screw that secures the left hand side of the control cover (see Diagram 10).

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AR0915

6.4To release the right hand side of the control cover insert the narrow blade screwdriver into the slot shown in Diagram 11. Lever it gently and pull from the right hand side at the same time. The cover will now come off. There is a small cylindrical metal spacer inside the cover, this must be kept and replaced on the fixing screw during re-assembly.

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6.5Disconnect the ignition lead from the gas valve.

6.6Undo the two bolts (see Diagram 9, C) securing the gas valve to the appliance and remove the valve.

6.7Replace in reverse order.

6.8Check all joints for gas leaks and check operation of the thermocouple and ignition lead.

7.Magnetic safety valve

7.1Turn the gas supply off at the isolation device. Undo the thermocouple connection from the back of the gas valve, pull the sensor leads clear and remove the interrupter block (see Diagram 12, A).

7.2Undo the magnetic valve-retaining nut from the back of the control valve, gently tap out the magnetic valve and replace with a new unit. Replace the retaining nut and tighten (see Diagram 12).

12

A

AR0915

7.3Reassemble the interrupter block and leads. Secure the thermocouple connection in the rear of the gas control. (Do not overtighten). Turn the gas supply on and check the entire pipe work and valve joints for any leaks.

8.Main injector

8.1Turn the gas supply off at the isolation device and ensure that the appliance is cold before commencing work on it.

8.2Undo the compression nut from the injector (A) and loosen the compression nut (B) in the gas valve body. Disconnect the pipe from the injector and unscrew the injector (C) from the burner unit (see Diagram 13).

13

C

B A

AR1441

8.3Reassemble in reverse order. The injector must NOT be tightened into the burner but be allowed to float to enable it to line up with the pipe. Turn on the gas supply and check for leaks.

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Image 19 Contents
Yeoman Exe Midi Contents GAS CHECK APPLIANCE COMMISSIONING CHECKLISTFLUE CHECK Pass FailGeneral User InstructionsTurning the Stove off Lighting the StoveUpgrading the Stove Advice on Handling and Disposal of Fire Ceramics Cleaning the stoveFuel bed arrangement User InstructionsheadingHOT Surfaces Installation DetailsTechnical Specification Installation InstructionsPacking Checklist Location Installation of the gas supplySITE REQUIREMENTS Flue and Chimney RequirementsInstallation of the stove InstallationControl upgrade Safety precautionsFuel BED Arrangement For full instructions see User Instructions, Section Commissioning Commissioning Servicing Requirements Servicing Instructions Check Flame Failure Functional Check Ignition Functional CheckPilot unit Replacing PartsGeneral Main burnerPiezo Ignition lead and piezoGas valve Main injector Magnetic safety valvePrimary aeration plate Basic Spares List Changing between gas typesSERVICE RECORDS