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BS EN 378-3:2016+A1:2020 Refrigerating systems and heat pumps. Safety and environmental requirements - Installation site and personal protection, 2020
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms
- 4 Location of refrigerating equipment [Go to Page]
- 4.1 !General
- 4.2 Refrigerating equipment located in the open air
- 4.3 Refrigerating equipment located in a machinery room
- 4.4 !Refrigerating equipment located in the occupied space
- 4.5 Refrigerating equipment located in an unoccupied space not designated a machinery room
- 4.6 Refrigerating equipment located in a ventilated enclosure within an occupied space
- 4.7 Piping duct or shaft
- 5 Machinery rooms [Go to Page]
- 5.1 Access to machinery rooms
- 5.2 Venting from or through the machinery room
- 5.3 Combustion equipment and air compressors
- 5.4 Open flame
- 5.5 Storage
- 5.6 Remote emergency switch
- 5.7 Exterior openings of the machinery room
- 5.8 Piping and ducting
- 5.9 Normal lighting
- 5.10 Emergency lighting
- 5.11 Dimensions and accessibility
- 5.12 Doors, walls and ducts [Go to Page]
- 5.12.1 Doors and openings
- 5.12.2 Emergency
- 5.12.3 Walls, floor and ceiling
- 5.12.4 Service ducts
- 5.12.5 Ventilation ducts
- 5.13 Ventilation [Go to Page]
- 5.13.1 General
- 5.13.2 Ventilation for normal operating conditions or when machinery room is occupied
- 5.13.3 Emergency mechanical ventilation
- 5.13.4 Required airflow for emergency mechanical ventilation
- 5.13.5 Mechanical ventilation openings
- 5.14 Machinery rooms for groups A2L, A2, A3, B2L, B2 and B3 refrigerants [Go to Page]
- 5.14.1 General
- 5.14.2 Location [Go to Page]
- 5.14.2.1 General
- 5.14.2.2 Emergency exhaust ventilation
- 5.14.3 Additional requirements for R-717 [Go to Page]
- 5.14.3.1 Drainage
- 5.14.3.2 Specific equipment for emergency washing
- 5.14.3.3 !Fire sprinkler systems
- 5.14.4 Maximum surface temperature
- 6 Requirements for alternative provisions [Go to Page]
- 6.1 General
- 6.2 Occupied space
- 6.3 Ventilation [Go to Page]
- 6.3.1 General
- 6.3.2 Dilution transfer openings (air transfer openings for dilution) for natural convection
- 6.3.3 Mechanical ventilation [Go to Page]
- 6.3.3.1 Required airflow
- 6.3.3.2 Mechanical ventilation openings
- 6.3.3.3 Operation of mechanical ventilation
- 6.4 Safety shut off valves [Go to Page]
- 6.4.1 General
- 6.4.2 Location
- 6.4.3 Design
- 7 Electrical installations [Go to Page]
- 7.1 General requirements
- 7.2 Main power supply
- 7.3 Electrical equipment in machinery rooms with refrigerating systems containing flammable refrigerants
- 8 Safety alarms [Go to Page]
- 8.1 General
- 8.2 Alarm system power
- 8.3 Alarm system warning
- 8.4 Additional alarm system requirements for R-717 systems with charges above 3 000 kg
- 9 Detectors [Go to Page]
- 9.1 General
- 9.2 Location of detectors
- 9.3 Type and performance of detectors [Go to Page]
- 9.3.1 !General
- 9.3.2 Refrigerant detectors for A2, A2L, B2L (except for R-717), B2, A3 and B3 refrigerants
- 9.3.3 R-717 detectors
- 9.4 Installation
- 10 Instruction manuals, notices and inspections [Go to Page]
- 10.1 Instruction manual
- 10.2 Warning notice
- 10.3 Visual inspection of the site
- 10.4 Maintenance of the site
- 11 Heat sources and temporary high temperatures at the site
- Annex A (informative)Personal protective equipment [Go to Page]
- A.1 General requirements [Go to Page]
- A.1.1 Type of protective equipment
- A.1.2 Accessibility
- A.1.3 Location
- A.1.4 Check and maintenance
- A.1.5 Temperature
- A.1.6 Respirators
- A.2 Normal use
- A.3 Emergency use [Go to Page]
- A.3.1 General
- A.3.2 Respiratory protective devices
- A.3.3 First aid equipment [Go to Page]
