A Winning Combination: Humidification With High-Purity Supply Water

| April 5, 2017
DriSteem RO-200 Series

DriSteem RO-200 Series reverse-osmosis water treatment system

Why is humidification so important?

Dry air can cause considerable problems with manufacturing processes, damage or ruin building materials and furnishings, and negatively affect indoor air quality with adverse consequences for occupant health and comfort.

Damage caused by static-related issues is a serious concern in manufacturing and production environments. Adding humidity to the air dissipates static electricity, reducing problems associated with static charges that give shocks, attract dust to surfaces, and cause static cling in materials.

Many building materials, finishes, and furnishings are hygroscopic – which means they absorb, retain, and release moisture. Low or fluctuating relative humidity (RH) levels cause expensive damage to building interiors because as hygroscopic materials dry, they shrink. This can create gaps in wallpaper seams, floor boards, and furniture joints, and it can damage historic and artistic artifacts.

Keeping RH levels within a range of 40 to 60 percent decreases bacteria and viruses in the air and hinders the development of fungi, mites, chemical interactions, and ozone production. The result is reduced illness and sick leave among building occupants. An adequate humidity level has been shown to reduce respiratory illnesses and the prevalence of healthcare-associated infections (HAIs) in hospitals, clinics, and nursing homes.

Why should I care about supply water?

Supply water quality going into a humidifier has the single greatest impact on maintenance requirements. Gas-fired, resistive electric, and steam-to-steam humidifiers can deliver high performance and high capacities with little or no maintenance year after year – if you include water treatment in the system.

In humidifiers that boil water in permanent tanks to produce steam, water impurities build up over time, coating the heat exchangers or electric heating elements and the internal walls of the tank. The most difficult impurity to remove is scale, or calcium carbonate, which naturally occurs in hard water and precipitates when heated.

Scale buildup adversely affects system performance and efficiency by slowing a humidifier’s response time and disrupting output consistency. Also, because scale buildup slows the transfer of heat into the water, heating elements and heat exchangers can overheat and eventually fail. If never removed, scale can actually become so thick that tank replacement is the only option.

It is possible to prevent scale buildup by using reverse-osmosis supply water. Reverse-osmosis (RO) water is typically 98% free of total dissolved solids (TDS). Humidifiers using RO water can potentially run nonstop for their entire life cycle with no scale formation. A well-maintained RO water treatment system only requires occasional filter and membrane replacement.

DriSteem RO-200 Series reverse-osmosis water treatment system

Designed for DriSteem equipment and stand-alone operation, the compact DriSteem RO-200 Series reverse-osmosis system significantly reduces or eliminates maintenance on downstream equipment by removing over 98% of dissolved solids from supply water. It fits into small spaces, producing high purity water from tap to well water, reducing required maintenance and providing a low total cost of ownership. High-efficiency, extra low-energy membranes use little energy to generate pure water. Innovative pull-up membrane cartridges save space and make membrane replacement easy.

The RO-200 Series reverse-osmosis water treatment system is packaged and ready to operate right out of the box.  Worries about compatibility issues are eliminated because this RO system is engineered to work with DriSteem humidifiers and high-pressure atomization evaporative cooling systems.

Water treatment that works with Building Automation Systems

DriSteem RO systems are the first interoperable systems available. The industry-leading Vapor-logic® controller offers Building Automation Systems (BAS) network communications capability and delivers comprehensive system management.

The Vapor-logic® controller on the RO-200 provides menus for all system functions, with a web interface, and integrates with Modbus®, BACnet®, and LonTalk. Alarms quickly inform the users of issues or changes for easy monitoring and corrective action. The RO-200 system also includes a built-in TDS sensor that sends notifications to the BAS when the total dissolved solids concentration rises too high, ensuring timely maintenance and continued system performance.

DriSteem makes humidification easy

Properly controlled humidification improves manufacturing processes, helps preserve building materials and furnishings, and enhances occupant health and comfort. For over 50 years, DriSteem has been known as the premier provider of humidification and evaporative cooling solutions for commercial and industrial applications.  DriSteem water treatment systems are designed to provide high-purity supply water for humidification systems and are capable of supplying high-purity treated water for any process, making humidification easier than ever.

For more information about DriSteem water treatment systems, please visit us at www.dristeem.com.

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