Definition : Central air conditioning system

A device that provides thermal comfort to building occupants by reducing the air temperature in common portions or private portions , by the means of multiple apparatus powered by a single energy source. This type of device often includes a water cooling tower. In divided co-ownership, the central air conditioning system is presumed to be a common portion when it is part of the common equipment and apparatus, even if it passes through, through ducts, a private portion. It is therefore the responsibility of the syndicate of co-owners to ensure its maintenance and preservation.

 WARNING! Under the Building Chapter of the Safety Code, a water cooling tower is subject to maintenance requirements and various verifications. In particular, the syndicate must keep a register, file an annual declaration with the Régie du bâtiment du Québec (Québec Building Board) within the prescribed time limits, and take and analyze samples, according to certain procedures and intervals. An maintenance program must also be developed and signed by one or more members of a professional order and reviewed by them every five years.

Related articles


The characteristic of divided co-ownership is to divide the building into various lots that will be the exclusive property of the co-owners (private portions), and for others that will be the property of all the co-owners (common portions). These lots are identified by an individual number, which was assigned during the cadastral operation. Each of the private lots of the co-ownership thus constituted becomes a unique property. The distinction between the common and private portions is essential, particularly from the point of view of maintenance, which is the responsibility of the syndicate of co-owners for the common portions and of the co-owners for the private portions.   
View more
The Civil Code of Québec confers juridical personality on the community of co-owners. Article 1039 of the Civil Code of Quebec provides that as soon as the declaration of co-ownership is published, the community of co-owners constitutes a legal person called a syndicate of co-owners. Those duties and obligations are mainly aimed to ensure the preservation of the immovable, the administration of the common portions and the protection of the rights affecting the immovable or co-ownership, as well as all operations in the common interest. However, it is essential to understand them well because failure to comply with these duties and obligations towards a co-owner or a third party could lead to the civil liability of a syndicate.
View more