Method for cleaning an evaporative humidifier and cooler apparatus and a system comprising an evaporative humidifier and cooler apparatus

A system comprising an evaporative humidifier and cooler apparatus for humidification and cooling of air, a control device and a sensor device arranged in communication with the control device, the apparatus comprising:

• cooling and humidification media, configured to receive and evaporate a fluid;
• a fluid distribution element, which is configured to distribute the fluid to the cooling and humidification media;
• and
• a tray arranged to collect fluid downstream of the cooling and humidification media;
• wherein the fluid distributed by the fluid distribution element is collected from the tray;
• wherein the control device is configured to determine a condition of the cooling and humidification media based on data from the sensor device arranged in fluid communication with the fluid downstream of the cooling and humidification media;
• and supply at least one cleaning fluid to the cooling and humidification media dependent on the condition of the cooling and humidification media;
• and
• wherein the control device configured to supply the at least one cleaning fluid to the cooling and humidification media comprises supplying a first cleaning fluid when the cooling and humidification media has a condition requiring de-scaling of the cooling and humidification media;
• and/or wherein the control device configured to supply the at least one cleaning fluid to the cooling and humidification media comprises supplying a second cleaning fluid when the cooling and humidification media has a condition requiring disinfection of the cooling and humidification media.