Gas Valve Plug/Spark Generator - Baxi 35/80 IE Installation & Servicing Instructions Manual

1. To replace the expansion vessel it is necessary to remove the boiler from the wall.
NOTE: Alternatively a vessel of equivalent capacity can be fitted on the system
return pipe as close as possible to the boiler.
2. Drain the system and undo all gas and water connections. Remove the flue elbow.
3. Lift the boiler off the wall plate and lay it on either side on a clean flat surface.
4. Undo the nut on the vessel outlet spigot, and remove the locknut and spring washer
securing the spigot to the boiler chassis.
5. Undo the screws and remove the appliance upper cross member. Slide the expansion
vessel out of the retaining clips.
6. Reassemble in reverse order. Fully recommission the appliance and system.

12.17 Gas Valve Plug/Spark Generator

(Fig. 60)
1. The valve electrical plug, spark generator and lead are combined in one unit.