How the HVAC system works
HVAC stands for Heating, Ventilating and Air Conditioning. These systems help to control the temperature, humidity and air quality within a building to provide a comfortable environment. Commercial HVAC systems in buildings contain interconnected systems to distribute these and usually include heat pumps that extract heat from the air or water for heating purposes.
The heating aspect of an HVAC system is produced by using radiators or supply air systems, ventilation is accomplished by extracting contaminated air out of the building while maintaining clean air and circulates the internal air to remove any excess humidity. Finally, cooling systems lower the temperature and help to maintain proper levels of humidity within the commercial building. There is also the cooling towers, which are basically heat exchangers that use water and air to transfer heat from the air-conditioning systems to the outdoor environment, most commonly, they are used to remove heat from the condenser water leaving a chiller.
The purpose of an HVAC water treatment programme is to maintain the water in the system so that it is clean and free of contaminants. It is usually organic materials, bacteria and other organisms which foul the equipment and cause damage to machinery. A good water treatment plan will consist of a preventive approach and measurement process, the key approaches of maintaining high quality water.
Is paying for HVAC water treatment worth the price?
Preventing only one mechanical failure caused by the proliferation of organisms in your water is worth the cost.
Instead of repairing the entire system, you proactively prevent issues and keep your water safe for everyone; untreated water can contain potentially harmful bacteria such as Legionella, which is known to cause death in some people who come into contact with the organism.
How optimisation saves water
Building / facility owners are already feeling the pressing of increasing energy usage and costs and are seeking new ways to optimize their energy efficiency and reduce wastage. One potentially large source of savings that building / facility mangers often overlook is their HVAC systems.
In a building, people usually consider bathroom and kitchen water usage the main offender, however studies have shown that HVAC systems may account for 28 – 44% of a buildings water consumption. While water consumption varies by climate and building type, that’s a huge source of potential water savings.
Luckily, reducing water wastage comes hand in hand when you look at optimising and increasing the systems efficiency. When a system is more efficient, less water circulates and less water needs to be flushed out, reducing the need for chemicals.