SUPPLEMENTARY AIR CONDITIONING SYSTEM SIZING FOR THE AUSTRALIAN MARKET

The term "supplementary air conditioning unit" in the context of building air conditioning system typically refers to an additional cooling and/or heating system installed in a building to supplement the base building's air conditioning system.

Here's a breakdown of some of the relevant concepts:

Base Building Air Conditioning System: This is the main air conditioning system installed in a building that provides cooling/heating and ventilation to the common areas and individual spaces within the structure. It is usually designed to meet the basic requirements of the occupants and complies with the local building codes and standards (NCC in case of Australia).

Supplementary Air Conditioning Unit: This is an additional cooling/heating unit that is added to supplement the base building air conditioning system. Supplementary units are typically installed to meet specific requirements, such as cooling a Comms room or a newly added boardroom within the building that may have needs beyond what the base system can provide.

In commercial real estate, tenants may have unique cooling and heating needs that go beyond the capabilities of the base building system, especially in spaces that house equipment or occupants emitting significant heat. In such cases, the installation of supplementary air conditioning units would be required. The terms of the lease might specify the parameters of the "allowance" for this supplementary air conditioning, dictating who is responsible for the cost, maintenance, energy consumption, etc.