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Mind the Gap – The importance of gap-free data center containment door systems, by Larry Mainers

Mind the Gap – The importance of gap-free data center containment door systems, by Larry Mainers


No visit to London England is complete without seeing the London Underground, or as it is affectionately called “The Tube”. The tube connects the greater part of London with 270 stations. It’s an easy and inexpensive way to get around London town.

In 1969 an audible and/or visual warning system was added to prevent passengers’ feet from getting stuck between the platform and the moving train. The phrase “Mind the gap” was coined and has become associated with the London Underground ever since.

“Mind the gap” had been imitated all over the world. You will find versions of it in France, Hong Kong, Singapore, New Delhi, Greece, Sweden, Seattle, Brazil, Portugal, New York, Sydney, Berlin, Madrid, Amsterdam, Buenos Aires, and Japan.

It is my hope that this phrase can be embraced by the data cent er industry. Gaps in airflow management and especially when containment is deployed are an easy way to lose both energy and overall cooling effectiveness. We need a “Mind the gap” philosophy in airflow management, especially containment doors. Why doors? Because of the door’s moving parts it is less expensive for manufacturers to leave a gap then to have a door that fully seals. Data center managers who “Mind the gap” should insist on door systems that don’t leak.

Just how important is it to “Mind the gap” in your data center containment system? One way to see the importance of eliminating gaps is to take a look around your own house. How many acceptable gaps do you have around your windows? Do you conclude that since the window is keeping most of the conditioned air inside that a few gaps around the windows will not matter much? I doubt it. The fact is, utility companies have been known to provide rebates for the use of weather stripping to ensure a ll gaps are filled. Gaps equal waste. Over time any waste, no matter how small, ends up being substantial.

Gaps become an even more important area to fill when you consider that most contained aisles are under positive pressure. Positive pressure can increase the leakage fourfold. A cold aisle that is oversupplied should move air through IT equipment and not aisle end doors.

It’s important that we all “Mind the gap” in our data center containment doors. In this way we both individually and collectively save an enormous amount of energy, just as the world’s mass transit systems, like ‘The Tube’, do for us each and every day.

Airflow Managementaisle end doorsData Center ContainmentData Center Containment DoorsMind the GapSubzero Engineering
What’s new at Subzero Engineering for 2014

What’s new at Subzero Engineering for 2014

At Subzero Engineering we are always looking for new ways to improve our products, by making them more energy efficient, NFPA compliant, and adding more standard features. This year is no exception!

We have been working hard taking our world class products and ma king them even better. Here are a few of the changes we are making for 2014.

Product Announcements

• New Polar Cap Retractable Roof – The first fully NFPA compliant containment roof system
• New Arctic Enclosure Sizes Available – Two new 48U cabinets available
• Power Management – We now offer a full line of Raritan power products
• New Elite Series Doors – All of our doors have a sleek new design & come with extra features, standard
• New Panel Options – 3MM Acrylic, 4MM Polycarbonate, 3MM FM4910

Click here to learn more.

Airflow Managementaisle end doorsCold Aisle ContainmentEnclosuresHot Aisle ContainmentPower ManagementraritanRetractable Roofserver racksSubzero Engineering
New Style Containment Aisle End Doors and Panels

New Style Containment Aisle End Doors and Panels

At Subzero Engineering, we continue to improve our products and services to better serve you, our customers. We’re excited to announce, along with our newly released website, we are now carrying a new style of doors and panels which replaces our current style. With this new style, we are currently carrying an I-40 series which is similar in size to the Premium series we carried. In the near future, we will be carrying an I-30 series which will be lighter compared to the I-40 series and similar to our current Lite series products.

Our new style of doors and panels have a sleek, smooth finish with a superior fit and effectively encloses both hot and cold aisles. Our doors come in three different styles: dual, single, and hinged. Our products are manufactured at our corporate office location in Draper, UT to provide you with a perfect custom fit.

aisle end doorsdata center cold aisle containmentData Center ContainmentHot Aisle Containmentwall panels