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Thread the safety switch into the holder.

Fig. 2-27: Safety switch

To adjust the switch correctly, slide it towards the

maintenance cover until it touches the maintenance

cover.

Fig. 2-28: Switch touches maintenance cover

Then slide the switch a further 2-3 mm towards the

maintenance cover so that the switch is actuated and

a "click" is clearly audible. Now tighten the adjusting

nuts on the switch.

Fig. 2-29: Switch set correctly

Installing the cover

Mount the cover over the high voltage unit.

Fig. 2-30: Cover

Then attach the sticker with the safety notices to the

cover and the rear panel.

Fig. 2-31: Sticker

Connect boiler to potential equalisation

The boiler must be connected to the potential equaliza-

tion of the boiler room or the building. Country-specific

regulations must be observed.

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Installation