Ceiling-mounted spot cooler cools server room

The University of Louisville Health Care Outpatient Center, in Louisville, Ky., had a problem with its server room overheating. The center decided on a MovinCool CM12 ceiling-mounted spot air conditioner.

02/07/2011


The University of Louisville Health Care Outpatient Center, in Louisville, Ky., had a problem with its server room overheating. The 8 x 12-ft room houses server and telecom equipment that is vital to the center’s daily operations. The equipment runs 24 hours a day and needs to be cool at all times to avoid malfunctioning, hardware damage, or system downtime. University of Louisville Case Study

The problem surfaced when, in an energy-saving effort, the setpoints of the building’s central HVAC system were adjusted to turn the system off at night. As a result, equipment in the server room became excessively hot and was shutting down at night, incapacitating the health-care center for hours at a time.

The building’s facility manager knew that continuing to run the central air conditioning system to cool only one room would be too costly, so he contacted Joe Dotson, service account manager of Scarborough Mechanical Services, Inc., the Louisville firm that had installed the original HVAC system, to propose a solution.

In evaluating the available choices, Dotson excluded a precision cooling system as having unneeded features and an unnecessarily high price tag. “In this situation, it would have been overkill,” Dotson said. “A ductless split system was another alternative, but it would have meant additional installation expense in penetrating the roof and running refrigerant lines to the outside unit, as well as running electric lines to two separate pieces of equipment. Also, the room was very cramped, and there was really no space to mount a wall unit.”

DUniversity of Louisville Case Studyotson decided on a MovinCool CM12 ceiling-mounted spot air conditioner, which has a cooling capacity of 10,500 Btu/h at 80 F and 50% relative humidity (RH) at the evaporator and 95 F and 40% RH at the condenser; and 13,000 Btu/h at 95 F and 60% RH. The self-contained unit requires no external refrigerant lines, outside condensing unit, or charging of refrigerant, and it measures only 15.5 in. high, so it fits into the space above a drop ceiling. Built-in 10-in. flanges and mounting brackets allow quick installation with standard, off-the-shelf mounting hardware. The unit plugs into a 115-V electrical outlet, further reducing installation costs. Dotson purchased the CM12 from Trane HVAC Parts & Supplies, in Louisville.

“Installation was very straightforward,” Dotson added. “We got in and out in a day, with no system downtime and minimal impact on the customer. If the room had been unoccupied and we didn’t have to work above all the computer equipment, the installation would have probably taken only half a day.

“One convenient feature of the CM12 is that it has a built-in condensate pump, which eliminates an installation step or two. After attaching the unit to the ceiling and connecting the intake and exhaust ducts, we ran the condensate drain to a sink in a nearby maintenance closet.

“Then we installed the unit’s wall-mount thermostat. The CM12 can also be connected to a central control system, but there was no need in this scenario. A big advantage of a self-contained unit like the CM12 is that it’s in an interior space where the heat load is fairly consistent throughout the year, so we don’t have to worry about running an external condensing unit in low ambient conditions. We just set the thermostat to one temperature and hold it there all year round.”

Dotson and the team are very pleased with the results. “The health-care center has no more shutdowns due to overheating,” he said. “Also, the facility manager was happy that we were able to perform the installation so quickly and with no interruption of the center’s operations. He also likes the fact that without an outside condensing unit, the system has minimal maintenance costs.

“The CM12 is perfectly designed for this type of application. It has the usual MovinCool quality, it’s easy to install in tight spaces, and it has an affordable price tag.”


Information provided by MovinCool



The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
A new approach to the Skills Gap; Community colleges may hold the key for manufacturing; 2017 Engineering Leaders Under 40
Doubling down on digital manufacturing; Data driving predictive maintenance; Electric motors and generators; Rewarding operational improvement
2017 Lubrication Guide; Software tools; Microgrids and energy strategies; Use robots effectively
The cloud, mobility, and remote operations; SCADA and contextual mobility; Custom UPS empowering a secure pipeline
Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Power system design for high-performance buildings; mitigating arc flash hazards
Research team developing Tesla coil designs; Implementing wireless process sensing
Commissioning electrical systems; Designing emergency and standby generator systems; Paralleling switchgear generator systems

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
The maintenance journey has been a long, slow trek for most manufacturers and has gone from preventive maintenance to predictive maintenance.
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.
Maintenance Manager; California Oils Corp.
Associate, Electrical Engineering; Wood Harbinger
Control Systems Engineer; Robert Bosch Corp.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me