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BlueSense™ HVAC Water Treatment (Heating Ventilation & Air Conditioning)

Having cost effective, low maintenance, energy efficient and compliant HVAC systems is the ultimate goal for facility management. Biofouling on heat exchangers and in the pipework may drastically impact their performance and even their integrity.
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BlueSense™ developed specific solutions to limit the proliferation of micro-organisms in HVAC systems. An exclusive technology, based on electrolysis, uses the chlorides naturally present in the inlet and in the recirculating water to convert them into a powerful oxidizing biocide, the hypochlorous acid.
A 20 ppm chlorides concentration in the water to be treated is enough to generate up to 2 ppm of free chlorine in the system.
Depending on the quantity of disinfectant required, and on the chlorides concentration in the water, this conversion can take place in-line, on the raw water stream, or in recirculation directly on the cooling or heating loops.

​Applications of BlueSense™ technology are numerous:

• Hot Water Systems, for institutional and medical care buildings (clinics and hospitals)
• Air conditioning water circuits, as for office buildings or shopping malls
• District cooling, to facilitate cold water storage for use during warm season

 
BlueSense™ technology has proven track record in the prevention of microbial growth and in particular of legionella pneumophila for more than 15 years.

Managing the biofouling in HVAC systems leads to an improved exchange for the production of heat or cold, reduces the scale formation by limiting the number of crystal nucleation sites but also lowers the corrosion rates (decreasing the risk of Microbial Induced Corrosion and the deposits).

As the disinfectant is produced on-site and on-demand, less routine maintenance is required, and there is no need to handle or transport hazardous chemicals. The intuitive Human Machine Interface (HMI) of the OXAQUA and OXAQUA RW also eases the control of the proper sanitation of the system, which can lower the total cost of ownership and operation.

BlueSense™ OXAQUA

BlueSense™ OXAQUA RW for water in recirculation

BlueSense™ OXAQUA RW CL including chlorine analyser

OXAQUA & OXAQUA RW Key Advantages

ADVANTAGES	BENEFITS
On-site generation of disinfected water	No handling of hazardous chemicals
Consistent chlorine production	No loss of chlorine strength, less adjustments of the dosage compared to Sodium Hypochlorite
Integrated chlorine controller	Operation of the unit only when required (free chlorine level)
Production of a free chlorine residual	Treatment of the entire distribution network and security in case of contamination
Need of only 20 ppm of chlorides	Adaptive to most waters (surface or ground water)
Low footprint	Easily fitted in valve chamber, no civil work required
Efficient on Legionella spp.	Can be installed on recirculating process water, cooling towers or water towers ​hot water or air conditioning systems
Low production of by-products	No discharge of bromates in the environment, less chlorates and THMs ​compared to Sodium Hypochlorite

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