HVAC
Self-cleaning filtration for HVAC and cooling water systems where suspended solids can reduce heat transfer and equipment reliability.
When dealing with HVAC, there are many water quality issues that must be addressed through filtration.
- Cooling systems accumulate scale, corrosion products, biological debris, and airborne particulates.
- Solids can foul heat exchangers, cooling tower nozzles, strainers, and pumps.
- Manual cleaning increases maintenance labor and can reduce cooling system uptime.
Conditions, Contaminants, and Considerations
Water sources may vary, but the primary water sources for HVAC filtration are:
- Cooling tower water
- Closed-loop cooling water
- Makeup water
- Process cooling water
In this application, water is usually filtered within the 100-500 micron range to remove contaminants like:
- Scale
- Corrosion products
- Suspended solids
- Biological debris
Due to these constraints, certain design considerations must be made to accommodate variables that can interfere with the filtration process. Factors such as Cooling load, Loop flow rate, Water chemistry, Micron rating, Pressure availability, and Flush frequency must be accounted for to ensure reliable and efficient water filtration.
Benefits
Filtering the water before industrial or commercial use:
- Protects heat exchangers, pumps, valves, and cooling tower components.
- Helps maintain heat-transfer efficiency.
- Automatically flushes collected solids without manual screen cleaning.
Relevant FAQs
Does the filter waste a lot of water while cleaning itself?
No, because of how quickly the filter cleans itself. Typical backwash water volume is as little as 10 gallons.
