Preface

These instructions contain important information regarding retrofit installations and for exchanging the PTC supplementary heat register.

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Installation video

Required qualifications for installation work

The supplementary heat register may only be installed by qualified electricians in accordance with the applicable electrical engineering regulations (EN 50110-1, EN 60204-1 etc.). Observe safety regulations → following safety information and WS 75 final mounting instructions with safety information supplement.

Requirements for specialist installers: Specialist training and knowledge of technical standards, EU Directives and EU Ordinances. Observe applicable accident prevention requirements. Observe occupational health and safety measures: protective clothing in good repair etc.