This Standard contains recommendations only and does not have the force of law until adopted officially by a jurisdiction. I) renumbering of Clauses 7.2.3.1.1, 7.2.3.1.2, and 7.2.3.3 of the 2005 edition and ii) the addition of Clauses 7.2.3.2, 7.2.3.2.1, and 7.2.3.2.2 g) Updates to Clause 7.2.4, h) Updates to Table 6 i) The addition of Clause 7.3.6.5 j) Updates to Clauses 8.1, 8.2, 8.3, 8.4.1, 8.4.3, and the addition of Clause 8.4.4 k) Updates to Annex I l) The addition of Annex J m) The addition of Annex K and n) The addition of Annex L. I) Automated control ii) Fade-out vessel iii) Gas cooler iv) Manual control v) Pressure-regulating relief valve vi) Primary refrigerant vii) Secondary refrigerant viii) Subcritical ix) Subcritical system x) Systems xi) Supercritical xii) Thermal relief device (or thermal expansion relief device) xiii) Transcritical system and xiv) Triple point b) Updates to Clause 4.3.1.2.3 c) Updates to Clauses 5.5.1, 5.6, 5.7.1, and 5.8.1, addition of Clause 5.9.2.1(c) d) The addition of a note to Clause 6.3 and an update to Clause 6.3(d) e) Updates to Clauses 7.2.2.1, the addition of Clause 7.2.2.4 f) Updates to Clause 7.2.3 to include

Changes to this edition include: a) Clause 2 has been has been updated to add the following definitions: The Code applies to all refrigeration systems installed, whether in new or existing premises, to systems that undergo a substitution of refrigerant, and to parts that are replaced in or added to the system. The 11th edition of this Standard provides the minimum requirements for the design, construction, installation, inspection, and maintenance of the mechanical refrigeration systems, and is complemented by the practical implementation guidance B52 Handbook, helping to minimize the risk of personal injury. Preface This is the eleventh edition of CSA B52, Mechanical refrigeration code. There is a safety bulletin for this standard (Maximum Refrigerant Quantities per Occupied Space). Historical CSA B52-2013 B52-13 - Mechanical refrigeration code

B52 refrigeration code