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BS ISO 5149-3:2014+A1:2021

BS ISO 5149-3:2014+A1:2021

$142.49

Refrigerating systems and heat pumps. Safety and environmental requirements – Installation site

Published By Publication Date Number of Pages
BSI 2021 24
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This part of ISO 5149 is applicable to the installation site (plant space and services). It specifies requirements for the site for safety, which could be needed because of, but not directly connected with, the refrigerating system and its ancillary components.

This part of ISO 5149 is applicable to new refrigerating systems, extensions or modifications of existing systems, and for used systems being transferred to and operated on another site. This part of ISO 5149 also applies in the case of the conversion of a system for another refrigerant.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Location of refrigerating equipment
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 unoccupied areas not designated a machinery room
4.6 Refrigerating equipment located in a ventilated enclosure within an occupied space
11 4.7 Piping duct or shaft
5 Machinery rooms
5.1 Occupancy of machinery rooms and special machinery rooms
5.2 Venting from or through the machinery room
5.3 Combustion equipment and air compressors
5.4 Open flame
12 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
13 5.12 Doors, walls, and ducts
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 Emergency ventilation ducts
5.13 Ventilation
5.13.1 General
14 5.13.2 Ventilation for temperature control under normal operating conditions
5.13.3 Ventilation when machinery room is occupied
5.13.4 Emergency mechanical ventilation
5.13.5 Required airflow for emergency mechanical ventilation
5.13.6 Mechanical ventilation openings
15 5.14 Additional measures for flammable refrigerants (classes 2L, 2 and 3)
5.14.1 General
5.14.2 Combustion equipment
5.14.3 Maximum surface temperature
16 5.15 Additional requirements for R-717
6 Requirements for alternative provisions
6.1 General
6.2 Occupied space
6.3 Ventilation
6.3.1 General
17 6.3.2 Dilution transfer openings for natural convection
6.3.3 Mechanical ventilation
18 6.4 Safety shut-off valves
6.4.1 General
6.4.2 Location
6.4.3 Design
7 Electrical installations
7.1 General requirements
7.2 Main power supply
7.3 Electrical equipment in machinery rooms in which a refrigerating system contains class 2L flammability refrigerants
19 8 Safety alarms
8.1 General
8.2 Alarm system power
8.3 Alarm system warning
8.3.1 General
8.3.2 Alarm for machinery room
8.3.3 Alarm for occupancy
8.4 Additional alarm system requirements for R-717 systems with charges above 4 500 kg
9 Detectors
9.1 General
20 9.2 Location of detectors
9.3 Function of the detector
9.4 Type and performance of a detector
9.4.1 General
9.4.2 Refrigerant detectors for A2L, A2, B2L (except for R-717), B2, A3, and B3 refrigerants
9.4.3 Refrigerant detectors for R-717
21 9.5 Installation
10 Instruction manuals, notices, and inspections
10.1 Instruction manual
10.2 Warning notice
10.3 Visual inspection of site
22 10.4 Maintenance of the site
11 Heat sources and temporary high temperatures located at the site
23 Bibliography

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BS ISO 5149-3:2014+A1:2021
$142.49