Modular Chiller Plants for data centers. Downtime isn t acceptable

Transcription

1 Modular Chiller Plants for data centers Downtime isn t acceptable

2 Reducing risk with Quick Start A direct solution to your most important challenge uptime. At Johnson Controls we protect our customers uptime from every angle, so if failure does occur, we have a sure way to reduce the risk of cooling disruption. The Quick Start feature for YORK centrifugal chillers with OptiSpeed variable-speed drives can save you both time and money by: Reducing time for chiller restart after power failure Rapidly re-establishing chilled-water temperature Keeping process equipment cooled Reducing risks of expensive downtime Loading the chiller faster, too Faster restarts due to smarter power management After power is interrupted, it can take a standard centrifugal chiller many minutes to restart. But with the Quick Start feature, it takes seconds. The Quick Start feature is available in two configurations, for use with or without an uninterruptible power supply (UPS). Quick Start feature without UPS is fast: Once emergency power is established, the chiller can restart as soon as the OptiView control panel reboots (75 seconds) and the OptiSpeed drive precharges (25 seconds), assuming coastdown of the compressor has been completed. If emergency power is available after 15 seconds, the chiller will restart in 100 seconds. Quick Start feature with UPS is faster: The UPS keeps the OptiView and OptiSpeed control circuits energized until the emergency generator is activated, which eliminates the need for control panel reboot. The chiller will restart in 45 seconds once power is restored. The Quick Start feature not only minimizes chiller restart time, it reduces the time required for the re-establishment of the design leaving chilled-water temperature (LCHWT). The Quick Start feature utilizes accelerated loading logic, with the inlet vanes fully open, to re-establish the specified leaving chilled-water temperature faster. While the actual time to re-establish the LCHWT will depend on plant design, compressor size, and operating conditions, a chiller equipped with the Quick Start feature can cut the time by as much as 70%. Timeline from loss of power Without UPS With UPS 15 seconds 100 seconds to restart Power failure 15 seconds 45 seconds to restart Power failure Coastdown* = 60 seconds OptiView Chiller control panel reboot = 75 seconds Required steps when power interruption occurs Coastdown* = 60 seconds OptiSpeed Precharge = 25 seconds *Coastdown time for a 500-ton (1750-kW) chiller OptiSpeed Precharge = 25 seconds Figure 1: Restart times for 500-ton (1750-kW) chiller after 15 second power failure. Faster restart restores specified leaving chilled-water temperature quicker. Temperature 60 F/15.6 C 58 F/14.4 C 56 F/13.3 C 54 F/12.2 C 52 F/11.1 C 50 F/10 C 48 F/8.9 C 46 F/7.8 C 44 F/6.6 C Restart complete Power failure Restart complete 3 minutes 2 seconds LCHWT: Standard Chiller Quick Start with UPS 10 minutes 12 seconds Time from power failure (minutes) Figure 2: Time to re-establish LCHWT for 500-ton (1750-kW) chiller at low load.

3 Protecting your uptime In data centers and other critical applications, uptime is your priority. We realize that one second of downtime can equal several hours of restarting time. And that equals a lot of lost money and upset customers. Because chiller reliability and data center performance are so closely linked, Johnson Controls offers you uptime protection with Modular Chiller Plants (MCP). Johnson Controls MCPs are expertly engineered, carefully constructed, and they utilize the high-quality equipment you know and expect from Johnson Controls. And because about 80 percent of the work is done in-house, quality can be controlled much more accurately than traditional chiller plant solutions. And Johnson Controls offers you solutions for even greater redundancy such as a backup rental chiller. The result? An optimized, standardized and consistently reliable end product all with a single source of accountability.

4 Built in advantages Maximum reliability A Modular Chiller Plant (MCP) from Johnson Controls can significantly increase your reliability and bring measurable benefits to your data center, including uptime. Our pre-engineered designs can meet your specific infrastructure design topology for power and cooling distribution redundancy, from Tier I to Tier IV certifications. Increased flexibility With a Johnson Controls MCP, your capital expenditure is based on what you need now not what might be required for the future. A modular equipment solution allows you to expand your plant capabilities on an as needed basis, leaving additional capital available for your core business operations. (If you are aware of your future chiller room needs, we can design your current system with future piping needs in mind, eliminating the need for costly re-piping activities later.) Plus, the plant can be relocated if needed. Lower cost Since MCPs drastically reduce lead-time and arrive ready, capital costs of these mechanical rooms can be reduced by 10-15% over traditional stick-built plants. This leaves more dollars and time available for revenue generating activities within your business. Dramatically reduced project time Johnson Controls modular chiller plants are pre-engineered & manufactured off-site in a controlled environment, free from weather interruptions or the impact of delays from other onsite conditions. Produced at a component level, modular utility plants arrive pre-built, tested and ready to start-up soon after arrival. For all these reasons, capital costs of these mechanical rooms can be reduced by 10-15% and lead-times can be reduced by 40% vs. the conventional approach, leaving more dollars and time available to you for revenue generating activities within your business. Engineered and certified solutions With a modular chiller plant, all electrical connectivity and operational testing takes place before it ships ensuring that your chiller plant will arrive fully functional and complete down to the component level. This prevents wasted time looking for miscellaneous pieces and parts needed during onsite installation. To provide unbiased assurance of quality, modular chiller plants can be certified by a Third Party who reviews all wiring, conduit and overall specifications and then provides a written report of their findings. Prefabricated vs. Conventional Single source accountability Reduced install costs Reduced lifecycle costs Reduced project costs Reduced lead-time Reduced footprint Manufacturing controlled environment Weather related delays Factory quality control Easily maintain project schedule Engineering design maintained Pre-engineered design Flexible designs Simple designs Factory tested system OEM engineering support Reduced onsite risks Easy installation Modular concept & serviceability Eliminate need for plant-room building Relocation flexibility

5 PUE: Power Usage Effectiveness BUILDING LOAD - Demand from grid Total Facility Power IT Equipment Power PUE = Total Facility Power IT Equipment Power Figure 3: Illustration of how PUE would be calculated in a data center. Maximizing energy efficiency Efficiently managing power and cooling infrastructure power consumption is one of the smartest ways to reduce Power Usage Effectiveness (PUE) ratios. Johnson Controls can assist you in your pursuit of increasing system efficiencies to lower power consumption. Greater energy efficiency is the solution to the two biggest problems facing IT organizations today data center power and cooling. A more efficient data center will help you better manage increased computing, network and storage demands. Johnson Controls can help you create a more efficient data center that reduces your energy usage, lowers your total cost of ownership and prepares your company for future growth. Chillers possibly consume more power than any other piece of equipment in a data center s infrastructure building load. As a result, one of your biggest opportunities to save money is by maximizing the efficiency of your chiller plant equipment and system. That s where Johnson Controls can help. We understand how the whole cooling system works to ensure maximized operational efficiencies in your cooling requirements. Chilled water plant optimization We save data centers energy by significantly improving the chiller plant s energy efficiency through optimizing the entire chilled water system s efficiency and using variable speed drive (VSD) technology. These efficiency savings may earn LEED points or other power saving initiatives. In fact, total chilled water plant efficiency savings of 30% or more to 0.5 kw / Ton or better have been proven attainable. Control strategies based on relationships between subsystems enable the energy use of various equipment to be balanced and provide the most efficient overall system. The whole system works in unison based on the load demands and adjusts beautifully to save energy and money. Free cooling We offer an additional money and energy saving option beyond chiller VSD s with YORK free cooling. Facilities that require year-round cooling from high sensible heat gains, like computer rooms or data centers cooled with a central chilled water system, can benefit from direct free cooling. When ambient outdoor conditions are below 40 F, the chiller can be shut off and the cooling load may be served exclusively by the cooling tower without mechanical refrigeration. Under the right conditions, free cooling can generate significant energy savings. In cooler, drier climates, waterside economizers can provide over 75 percent of the cooling requirements; in warmer climates they may provide only 20 percent.

6 Delivering data center success Data center expansion is occurring across the globe from Atlanta to Budapest and from Denver to Prague. As a worldwide organization with over 500 locations spread across strategic markets throughout the world, we provide a total solution from a single source. You can be certain that a Johnson Controls office is nearby to assist with your Modular Chiller Plant project before, during and after completion with 24/7 support. When you choose Johnson Controls, you can be assured that your Modular Chiller Plant is produced by an established, knowledgeable, skilled workforce with 125 years of experience dedicated to safety and quality. Our global footprint can align with your business needs to provide a full suite of services in any key market around the world. Printed on recycled paper. LEED is a registered trademark of the U.S. Green Building Council. YORK and OptiSpeed are registered trademarks of Johnson Controls, Inc. OptiView is a trademark of Johnson Controls, Inc Johnson Controls, Inc. P.O. Box 423, Milwaukee, WI Printed in USA PUBL