b'CODE CSAB52The previous code, which we had faible PRP) comme moyen de rduireet la quantit de fluide frigorigne A2L until 2018, had heavy restrictions on thelutilisation des produits qui contribuentpermise pour lquipement dans les permissible quantities of A2Ls you couldau rchauffement plantaire au Canadatablissements comme les foyers de soins have in your living environment because(voir larticle Transition des fluides frigo- de longue dure tait nulle. of flammability concerns, Rana explains.rignes au Canada dans ce numro). Ces lourdes restrictions de la That allowance was so little that you La norme prcdente, que nousversion 2018 (12e dition), qui est almost could not install any A2L heatingavions jusquen 2018, comportait detoujours en place, ont rendu difficile and cooling system or heat pump in yourlourdes restrictions sur les quantits de home, and the quantity of A2L allowedfluides frigorignes A2L autorises pour les intervenants de respecter for equipment in institutional facilitiestre utilises dans un milieu de vie enlengagement du Canada dliminer like long-term care homes was zero. raison dinquitudes lieslinflamma- progressivement lutilisation des Under the 2018 ver. (12th edition)bilit, explique M. Rana. Les quantitshydrofluorocarbures (HFC) conform-of the code, which is still in place, heavyautorises taient si faibles quil taitment aux cibles convenues dans le cadre restrictions on A2L made it difficult forimpossible dinstaller des systmes dedes ensembles dobjectifs tablis dans stakeholders to uphold Canadas commit- chauffage et de climatisation ou delAmendement de Kigali au Protocole ment to phasing down HFC (hydrofluo- thermopompe A2L dans une maison,de Montral. rocarbon) use as per the targets it agreed to under the target sets under the Kigali Amendment to the Montreal Protocol. So, on the one hand, we had this highly ambitious and critical climate change target set by the federal govern-ment, but on the other hand, we had this code that had not been modified to allow A2L refrigerants to go into a living space, Rana says. Step one for us, then, was to modify the CSA B52, which weve done. The HVAC Updates at a Glance SolutionsAn overview of this and other revisions was presented by Rana during HRAIsYou Need The Refrigerant Transition in Canada webinar in December 2023 (watch atThis Summerwww.youtube.com/@hraichannel). They included: Shop Brock AC Units, Clause 1.2.3 d: Air conditioning inHeat Pumps, & Air Handlers private residences has been deletedexclusively at Wolseley. from a list of exclusions.Clause 3: New definitions have been added, several of which are related to new techniques for determining the maximum quantity of refrig-erant permitted in a given space/volume (Clause 4).Clause 4: Revised to incorporate ASHRAE 34 tables and procedures, as well as updated A2L references,Need a condensatenew A2L requirements for occupant comfort and updated requirementspump for your unit?for flammable refrigerants in publicChoose PROSELECT! 15 Ft. Lift & 20 Ft. Lift hallways. 115V & 230VClause 5: Updated to include references to IIAR (International Institute of Ammonia Refrigeration)Shop all at your local Wolseley branch or visit changes to marking and label- wolseleyexpress.com/en/brockling requirements, new clauses for secondary coolant systems and stress corrosion cracking, and several new exemptions. Clause 6: Updated with new require- ments for A2L refrigerant use in*To receive Residential 10-Year Parts Limited Warranty and 20-Yearmechanical rooms.Heat Exchanger Limited Warranty product must be properly registered within 90 days of originalClause 7: Updated restrictions forinstallation (with the exception of a product purchased in the province of Quebec).rooftop access, and revised references for overpressure protection.Spring 2024 Insight17WOL_14140 Wolseley - HVAC Ad 2024.indd 1 2024-03-20 10:30 AM'