The building owner or manager is responsible for ensuring there is an air conditioning inspection report for the central system and the building occupier is responsible for ensuring there is an air conditioning inspection report for the equipment they have installed. In this example each party controls less than 250kW and the first inspection must have happened by 4 January 2011.
Tenant 1 occupies floors 1 and 2 and had additionally installed their own system of 110kW.
The landlord is the relevant person for the control of the central (150kW) system. The tenant is the relevant person for the control of the additional system (110kW) on floors 1 and 2.
Multiple small systems in a building
Where a system consists of a number of small units with an effective rated output of less than 12kW, but the total number of units within the building means that the combined cooling capacity is greater than 12kW then an air conditioning inspection is required.
The example below shows an air conditioning system with a cooling capacity greater than 250kW that serves multiple separate rooms. Although the air conditioning system serves multiple separate rooms, some with cooling capacity as low as 3kW per room, the air conditioning system is a single system under single control for the whole building with a cooling capacity greater than 250kW. An air conditioning inspection on a system with a cooling capacity greater than 250kW should have been carried out by 4 January 2009. A revised air conditioning inspection report would be required every 5 years from the date of the initial inspection.
Equipment under single control in parts of a building
The example below shows an air conditioning system with a cooling capacity greater than 250kW that serves three separate parts of a building that are designed for separate use. Although the air conditioning system serves three parts of a building that are designed for separate use the air conditioning system is a single system under single control for the whole building with a cooling capacity greater than 250kW. An air conditioning inspection on a system with a cooling greater than 250kW should have been carried out by 4 January 2009. A revised air conditioning inspection report would be required every 5 years from the date of the initial inspection.
The air conditioning system serves units 1, 2 and 3 and are controlled by the same person.
Together the total capacity controlled is > 250kW.
The first inspection must have been completed by 4 January 2009.
Equipment under single control in separate buildings
Where an individual building benefits from the refrigeration plant of an air conditioning system under single control, the building owner or manager is responsible for obtaining an air conditioning inspection report if the rating of the local cooling plant in the building is greater than 12kW.
The buildings are not covered by the air conditioning plant under single control, unless the systems in these buildings are a permanent part of the air conditioning system.
The example below shows an air conditioning system with a cooling capacity greater than 250kW that serves four separate buildings. Although the air conditioning system serves four separate buildings the air conditioning system is a single system under single control with a cooling capacity greater than 250kW. An air conditioning inspection on a system with a cooling capacity greater than 250kW should have been carried out by 4 January 2009. A revised air conditioning inspection report would be required every 5 years from the date of the initial inspection.
Together the total capacity controlled is > 250kW.
The first inspection must have been completed by 4 January 2009.
Cooling capacity, where occupants benefit from additional cooling capacity
In this example, a building is served by a single system of more than 250kW capacity under single control with an additional air conditioning system rated at 100kW.
An air conditioning inspection on a system with a cooling capacity greater than 250kW should have been carried out by 4 January 2009. A revised air conditioning inspection report would be required every 5 years from the date of the initial inspection.
The occupants on the trading floor are using machines rather than solely running the process. Any additional air conditioning capacity, therefore, benefits the occupants and is included in the air conditioning capacity to be inspected.