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Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Location of refrigerating equipment
   4.1 General
   4.2 Refrigerating equipment located outside in the open air
   4.3 Refrigerating equipment located inside in a machinery
        room
   4.4 Refrigerating equipment located in an occupied space
   4.5 Refrigerating equipment located in an unoccupied space
        not designated a machinery room
   4.6 Refrigerating equipment located within a ventilated
        enclosure
5 Machinery rooms
   5.1 General
   5.2 Occupation of machinery rooms
   5.3 Venting from or through the machinery room
   5.4 Emergency
   5.5 Combustion equipment
   5.6 Open flame
   5.7 Storage
   5.8 Remote emergency switch
   5.9 Exterior openings of the machinery rooms
   5.10 Piping and ducting
   5.11 Normal lighting
   5.12 Emergency lighting
   5.13 Warning notice and Access
   5.14 Dimensions and accessibility
   5.15 Doors, walls and ducts
   5.16 Ventilation
   5.17 Machinery rooms for groups B2, A2 and A3 refrigerants
6 Electrical installations
   6.1 General Requirements
   6.2 Main power supply
   6.3 Electrical equipment in rooms for refrigerating systems
        containing ammonia
7 Safety Alarms
   7.1 General
   7.2 Alarm system power
   7.3 Alarm system warning
   7.4 Additional alarm system requirements for ammonia systems
        with charges above 3000 kg
8 Detectors
   8.1 General
   8.2 Location of detectors
   8.3 Number of detectors
   8.4 Function of the detector
   8.5 Type and performance of a detector
   8.6 Construction and installation
   8.7 Ammonia detectors
   8.8 Refrigerant detectors for A2/A3 refrigerants
9 Instructions, manual and notices
   9.1 Instruction manual
   9.2 Warning notice
   9.3 Visual Inspection of site
   9.4 Maintenance
10 Heat sources and temporary high temperatures
Annex A (informative) Personal protective equipment
Bibliography

EN 378-3