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L1 Certificate in Access to Building Services
Engineering Unit 104 Worksheet 11
Unit 104: Introduction to building services engineering
Worksheet 11: Systems and regulations
Using the documents provided by your tutor describe the purpose of having these
documents and the guidance they give in terms of
 design guidance
 installation guidance
 maintenance guidance
 energy efficiency
for the following types of installation.
 Electrical installation
 Heating
 Hot and cold water
 Sanitation
 Air conditioning and refrigeration
 Ventilation
 Gas installation