Direct Air Cooling System removes heat from outdoor enclosures.

Press Release Summary:

Used for cooling electronics in outdoor applications, McLean® brand Direct Air Cooling System (DACS) comes in 4 standard models with sizes from 29-56 in. high as well as Hydrophobic GORE(TM) and MERV 12 filtration styles. Controller adjusts fan speed based on temperature, and power input options include 24, 48, 115, and 230 V. Built to meet application requirements, system is constructed to withstand harsh conditions and features replaceable filters and variable-speed blowers.

Original Press Release:

McLean® Brand Direct Air Cooling System Offers Flexible, Effective Heat Removal for Outdoor Enclosures

McLean® Brand Direct Air Cooling System

Anoka, MN-Pentair Technical Products announces the McLean® brand Direct Air Cooling System (DACS) for cooling electronics in diverse outdoor applications. DACS is a cost-effective alternative to closed loop cooling solutions for a wide range of applications. Utilizing quiet fan-based technology, enclosures equipped with a DACS cooling unit draw filtered ambient air into the enclosure to dissipate heat, enhancing the operation of sensitive electronic components.

The system is available in four standard models, a range of sizes from 29 to 56 inches high and with Hydrophobic GORE(TM) and MERV 12 filtration styles. DACS units can be customized to ideally suit many applications. Models are available in aluminum, stainless steel and diverse paint options to compliment individual enclosures. Additionally, with power input options of 24V, 48V, 115V and 230V, DACS is built to meet individual application requirements.

For applications prone to moisture exposure, models equipped with Hydrophobic GORE filters utilize GORE's unique microporous membrane. The filter is highly permeable to air while simultaneously preventing water and other corrosive particles from infiltrating the enclosures. Alternatively, models featuring MERV 12 pleated filters provide a cost-effective solution with off-the-shelf convenience. Since DACS models have distinct filtration capabilities, users can select the unit best able to accommodate the specific protection needs for their application.

"Pentair Technical Products' McLean brand has over 30 years of experience partnering with clients, and the knowledge and expertise to develop solutions for diverse cooling challenges," said Heidi Hung, DACS Product Manager for Pentair Technical Products. "With the addition of flexible, effective solutions such as DACS, McLean continues to position itself as an innovator of cooling strategies, accommodating everything from the most demanding closed loop cooling to simple but effective open loop cooling solutions."

All models are equipped with a controller to adjust fan speed based on temperature. This control provides soft start and precise current limiting at start up, noise reduction and energy efficiency. The controller also delivers alarm logic so preventative measures can be taken. A composite alarm is provided for high temperature, loss of power and failure of temperature sensor.

Additional features include easy-to-replace filters and variable speed blowers for quiet operation. Constructed to withstand harsh conditions, the system offers operating temperatures ranging from -40 to 55 C, vibration resistance and is UL Type 3R, CE and Telcordia GR-487 capable. This enables the system to deliver reliable cooling in diverse outdoor applications such as telecommunications equipment, kiosks and displays.

About Pentair Technical Products
Pentair Technical Products, a Pentair global business unit, is the leading provider of worldwide product and service solutions for enclosing, protecting and cooling electrical and electronic systems. Its industry-leading brands-Hoffman®, Schroff®, McLean®-provide a broad variety of standard, modified and engineered solutions to the commercial, communications, energy, general electronics, industrial, infrastructure, medical, and security and defense markets.

For more information, contact Pentair Technical Products at 2100 Hoffman Way, Minneapolis, MN 55303 or

About Pentair, Inc.
Pentair ( is a global diversified industrial company headquartered in Minneapolis, Minnesota. Its Water Group is a global leader in providing innovative products and systems used worldwide in the movement, treatment, storage and enjoyment of water. Pentair's Technical Products Group is a leader in the global enclosures and thermal management markets, designing and manufacturing thermal management products and standard, modified, and custom enclosures that protect sensitive electronics and the people that use them. With 2010 revenues of $3.0 billion, Pentair employs over 15,000 people worldwide.

Media Contact: Kelley Schreiber (Next Communications). Phone: 952-934-8220. Email:

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