http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/RSS.ashxRA PagesTue, 03 Jul 2007 12:18:15 +0200http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=1http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=1Customer Demands Drive Application Ingenuity Book Printer Gets the Word Out Faster with Electronic Control 6 Working Smarter with Subassemblies 8 Antique Home Gets a New Face and Radiates Comfort 10 Compact Refrigeration Keeps it Cool 12 Skiers Hit the Slopes In All Conditions 14 Safe Walking and Driving with Danfoss GX Snowmelting System 15 MAKING MODERN LIVING POSSIBLE2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=2http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=2Who in the world uses high octane engineering to conquer harsh conditions You can count on John Clough to go the extra mile. Not long ago, he helped a diesel engine manufacturer conquer one of the harshest applications on earth. High altitude, heavy loads and temperature extremes demanded a sensor that simply didnt exist. But that was before John got involved. Danfoss engineers worked closely together with the customers design team to develop a robust solution that could handle the gruelling conditions. After successful field trials, the customer put the pedal to the metal. To our engineers, reliability is nonnegotiable. Failure is not an option. We deliver unmatched application knowledge and superior engineering support 247365 days a year. Be sure to visit us on the web at www. northamerica. danfoss. com to see how our engineering expertise helps customers across the globe. Who in your world delivers the reliability that is critical to your success We do. John Clough, business development manager Controls Compressors Condensing Units Gear Motors Adjustable Frequency Drives Valves Controllers Oil Pumps Thermostats Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=3http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=3Vol. 4 Issue 31Danfoss Dependable. CONTENTS Volume 4, Issue 3 he world would have forgotten the discovery of electricity long ago if no one had found a way to use it. Application ingenuity led to everything from the light bulb to the computer, and today we can hardly imagine a nonelectric world. Demands from the real world spur new ways to apply product inventions, which is how technologies make their way into our lives. Oten innovations in applications come through joint eorts between lab work and eld work, researchers and endusers, developers and manufacturers, and the results are the modern amenities we enjoy today. In the heating, ventilation, airconditioning, refrigeration HVACR and industrial automation sectors, application technology leads to better performing, more ecient, and more environmentally friendly systems. his issue of Solutions explores some of the latest applications in these elds. We hope you nd the articles interesting and informative and always welcome your comments. THE EDITORS, solutionsdanfoss. com www. northamerica. danfoss. com Customer Demands Drive Application Ingenuity . . . . . . . . . . . . . . . . . . . . . 2 Book Printer Gets the Word Out Faster with Electronic Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Working Smarter with Subassemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Antique Home Gets a New Face and Radiates Comfort . . . . . . . 10 Compact Refrigeration Keeps it Cool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Skiers Hit the Slopes In All Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Safe Walking and Driving with Danfoss GX Snowmelting System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Product News . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Jeff Duncan North America Motion Controls Jennifer Allison Hutchins Corporate Communications Aneta Stephens North America Heating Lisa Tryson North America Air Conditioning and Refrigeration DANFOSS SOLUTIONS is published for the benet of Danfoss customers. Information in the DANFOSS SOLUTIONS may be republished only with permission of editorial and always with credit to DANFOSS SOLUTIONS. Comments, suggestions, and contributions are welcome. This publication should not take the place of appropriate technical or legal advice related to companyspecic circumstances. DANFOSS SOLUTIONS does not assume any liability of any kind whatsoever for the use or reliance upon the information contained in this publication. Design by Arista Advertising, Inc. www. Arista Advertising. com Dear Readers, 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=4http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=4Danfoss Dependable. 2Vol. 4 Issue 3 Customer Demands Drive Application Ingenuity Ideas, Inspirations, Breakthroughs. . . demands from the real world spur new ways to apply product inventions, which is how technologies make their way into our lives. Application technology leads to better performing, more efcient, and more environmentally friendly systems. Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=5http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=5Danfoss Dependable. Vol. 4 Issue 33 Continued next page WORRYFREE CLEANING New applications for refrigeration technologies make systems easier to operate and more environmentally friendly. Developments such as natural refrigerants, oil free compressors, selfcontained refrigeration units, and faultdetection features are taking refrigeration and air conditioning systems into the future, says Jorgen Stannow, recently retired director of research and development for Danfoss. Modern application technology allows the user to forget about the refrigeration, says Stannow. He can focus on his core business, assured that his system meets standards and is functioning right. Natural refrigerants Spurred by everstricter emissions standards, natural refrigerants are taking hold in the market. One major development has been carbon dioxide CO2 in transcritical refrigeration systems. Using CO2, is not a new ideaa century ago it was the refrigerant of choice. But today the interest in this natural refrigerant is environmental, because it is a nontoxic, nonammable, nonozone depleting, nonglobal warming substance. hanks to recent innovations, such as the CO2 compressor, it is being applied in modern systems. he concept of CO2 refrigeration is becoming more popular because commercial refrigeration users, such as supermarkets, want to meet environmental standards and avoid problems with environmental groups, says Stannow. he technology is being used more in European cascade systems. In the United States, HFCs are still widely used, but natural refrigerants are catching on as part of the refrigerant mix as commercial refrigeration users seek more environmentally friendly solutions. AN INVENTION IS ONLY AS GOOD AS ITS APPLICATION. he wheel was a pretty good idea. But the invention never would have gotten rolling if it werent for the people who came up with ways to apply it in everything from wheelbarrows to race cars. New applications for technologies improve the way we live in many ways. his includes raising eciency, performance, and environmental friendliness of systems in refrigeration, airconditioning, heating and industrial automation systems. Here, resident experts at Danfoss talk about the latest developments in their respective elds. Jorgen Stannow, Danfoss director of research and development, recently retired CO2 compressor2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=6http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=6Danfoss Dependable. Oilfree compressors Another major development, says Stannow, is applying oilfree compressors to the HVACR sector. The oilfree compressor, rst developed by Danfoss Turbocor, evolved through aerospace and industrial technologies, including magnetic bearings and variablespeed centrifugal compression. Using the oilfree systems for airconditioning and refrigeration is a real breakthrough that provides signicantly higher efciency and lower maintenance costs, Stannow explains. Oil management is a big problem for commercial refrigeration plants and the oilfree compressor eliminates that altogether. The energy efciency of the oilfree compressor is also a major advantage. Selfcontained refrigeration Applying selfcontained refrigeration has made convenient cooling a reality for food service providers, says Stannow. The selfcontained refrigeration approach brings several refrigeration control technologies into a single application the user simply plugs in the package into the refrigeration system, such as in a vending machine, and gets the refrigeration level he needs. Think of the videotape cassette, says Stannow. You just put it in and it works. Its so easy to service and replace, which makes it highly costeffective. Serial communications Progress in the refrigeration sector also includes applying serial communications. Fault detection and diagnosis FDD makes it possible to detect remotely whether the system is running under optimal conditions or not, says Stannow. The retailer doesnt need any expertise in refrigeration technology, because the system automatically does it for him. System performance overall goes up, since the control system ensures that all components are functioning and cooling levels are correct. Refrigeration applications will continue to evolve, Stannow says, in line with demands in energy efciency, environmental friendliness and higher performance. NEXTLEVEL AUTOMATION CONTROL Using variable frequency technology to control motor speed is not new. However, thanks to applications breakthroughs, it has become more ecient, better performing and more user friendly, says Benny Rheimer, director of application technology for Danfoss Drives. Centralized control Demands for speed, efciency and accuracy are driving applications technology in industrial automation, says Rheimer. One trend is electronic automation of multiple motors from a central control system. Previously a production operation typically had one motor controlling a lot of mechanical shafts and parts, he explains. Now were moving toward elimination of mechanical components and replacing them with multiple coordinated motors controlled by a master controller using serial communication. The advantage is that the processes can be controlled at a higher level of exibility, even as the speed of the system increases. Rheimer points to the example of a manufacturer that has developed a bottle labeling system that can run up to 68 servomotors, each with an integrated Danfoss controller, all of which are controlled by one master controller. he system can label up to 850 bottles per minute thats 15 bottles per second. he system is fast and highly exible, and can easily change from one bottle type to another, he says. he applications breakthrough came about through the real world needs of the manufacturer, explains Rheimer. We had to work with the customer to demonstrate how the functionality would achieve costeective results, he says. You cant do this type of development in the lab, you have to do it onsite with customer working with the application to achieve the best possible solution possible for his demands. 4Vol. 4 Issue 3 Benny Rheimer, director of application technology for Danfoss Drives Hydraulic power without oil During the 1980s, the environmental impact from leaking oil hydraulic systems became a concern for the management of many equipment producers OEMs using oil hydraulics for the power transmission on their machines. In the following2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=7http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=7Danfoss Dependable. Vol. 4 Issue 35 he industry, says Rheimer, is seeking these types of application solutions. hey want exibility and cost savings and ways to dierentiate from their competitors, he says. From these demands in the eld, more applications innovations will arise. INTUITIVE CLEANING Heating systems are getting smarter and more precise, with applications that aim for better indoor comfort and less environmental impact, says Mark Evans, sales coordinator for Danfoss Heating, North America. Most applications developmentsnew methods of using existing productscome from the eld, he says. Some of our most obvious improvements come from customers. Others come from seeing products integrated in a system and seeing how it operates on the site. Radiant Heating The rise in applications in radiant heatingheating that radiates through the room through the oor, using water or electricityis driven by the markets desire to be more environmentally responsible and is bolstered by the emergence of the LEED Standard as developed by the U. S. Green Building Council, Evans explains. People are looking for ways to meet the comfort needs of building occupants that are just as effective but have lower environmental impact. Direct Digital Control Evans says more new commercial and institutional buildings are using Direct Digital Control DDC systems for building comfort. The cost of computer power has dropped, making this attractive, and the outcome is that it changes how the hydronic water heatingcooling systems can be piped, he says. The DDC systems allow for better control and higher efciency of indoor comfort. Modular panels A demand for greater control over indoor temperatures is also leading to new applications in heating technology. There has been a rise in the number of condensing units and modulating highefciency boilers and water heaters in North America, which are more intuitive and include their own operating controls, explains Evans. This opens new development opportunities, such as the Zone Control Panels ZCP that Danfoss developed. The panels package heating controls into a modular panel that are typically placed under the oor surface. Evans explains that the panels integrate with the heating controls, and this application makes the overall system more efcient. Heatloss sotware With the goal of precise control over temperature and energy use, software developments have also led to more exible design and application of heating. The latest heatloss software programs provide more accurate and detailed load and ow information to system designers, explains Evans. The bottom line is that our understanding of the total system and customers needs provides us with the information and incentive to constantly improve. Mark Evans, sales coordinator, Danfoss Heating, North America2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=8http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=8Danfoss Dependable. How offset printing works Offset printing relies on the principle that ink and water do not mix. The ink is distributed to the printing plates through a series of rollers. On the press, the plates are moistened, rst by water rollers, then ink rollers, which distribute the ink to the plates. The image area of the plate picks up ink from the ink rollers, while the water rollers keep the ink off of the nonimage areas of the plate. Each plate then transfers its image to a rubber blanket that in turn transfers the image to the paper. The plate itself does not actually touch the paper thus the term offset lithography. 6Vol. 4 Issue 3Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=9http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=9Vol. 4 Issue 37Danfoss Dependable. VICTOR INCREASED PRODUCTIVITY by 150 percent while maintaining the highest print quality by outtting its two Goss heatset oset web presses with an innovative continuous run system that uses electronic motor control. Today the printer not only produces more books in less time, but it has also cut down signicantly on paper waste and has diminished worker hazards. David Gischel, vice president of manufacturing for Victor Graphics, reports that both systems have run awlessly since the rst one was installed six years ago. Je Fleming, president of Fleming Enterprises, designed, fabricated and installed the system, which he calls a ying changeover press. he system incorporates Danfoss VLT 5000 Series variable frequency drives VFD equipped with a synchronizing positioning controller option Sync Pos. It involves two print units stacked one on top of the other that allows printing to continue on one print station while the other is being set up for the next group of pages. his process has been done mechanically in the past, says Fleming. But the Victor installation was one of the rst ever in the country using shatless electronic control for web presses. Normally a printers actual production run time is somewhere around 60 percent for a typical work shit, with the rest of the shit used preparing and adjusting the presses. hanks to the ying changeover systems virtually eliminating the adjustment and setup phase, Victor now has close to 100 percent production runtime during three shits and has reduced paper loss dramatically. PRECISION ALIGNMENT Book printing requires precision alignment and timing. he plates, which print the impressions on the pages, must remain within very strict registration tolerances to ensure only perfect images print on the paper. he synchronization of the print roll to the cutting stage must also be highly accurate to ensure perfect alignment of the text on each page. All of this precision has to be maintained at extremely high speeds web presses can print up to 50, 000 impressions per hour. It is critical that all press adjustments remain perfect during the print run, as awed pages are discarded increasing the scrap cost. Typically, printers lose a great deal of productivity and paper in preparing the plates for a new run of pages as the initial setup adjustments are being made to the system. he electronic control system eliminates that problem. PRINTER MEETS ZERO MAKEREADY GOAL he major benet of the ying changeover system is that it eliminates makeready downtime. Makeready downtime includes the tasks involved in preparing the printing press for printing and replacing the printing plates. During the printing process, the press is set up to print a grouping of pages. An enormous roll of paper is fed into the press, where multiple page images are printed on the top and bottom of the paper sheet, and the ink heatdries before the paper sheet is collated into sections of a book, called signatures. Traditionally, the printing run would have to stop as a worker sets up and adjusts the press. With the two unit press, the upper unit runs while a worker changes the plates on the lower press, and vice versa. In the past makeready took about six minutes, and that meant signicant downtime, says Gischel of Victor. Today, we run continuously without stopping, and that was our goalzero makeready. he Danfoss VLT 5000 Series drive ensures that the machine speed remains consistent throughout the process, including during plate changeover. he Sync Pos option and sotware allows the motor speed to be timed with the press with high accuracy. It is programmed to allow the machine to automatically orient with the registration marker systems by using encoder feedback signals for position synchronization. he system senses the positioning of the plates and controls the individual printing unit motor speed accordingly so that the signature register to cut and fold remains within tight tolerances. he VFDcontr2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=10http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=10Danfoss Dependable. 8Vol. 4 Issue 3 Working smarter with WEVE ALL SEEN FLATBED TRUCKS ON THE ROAD carrying loads of prefabricated roof truss assemblies heading to a housing construction site. he homebuilding industry realizes signicant eciencies in time and cost by ordering stacks of roof beam and rater assemblies for delivery on demand. In addition to the logistic advantage of ontime delivery, prefabricated support assemblies are built under cover in mills protected from inclement weather, as the home site is not. Assembly is automated and supervised by specialist carpenters and the product is of consistent high quality. he concept of selling subassemblies extends from automobiles to refrigeration. Prefabrication is not a recent development it began in a limited way even before the industrial revolution, and has become one of the principal ways we work smarter to increase output, raise quality standards, and simplify the manufacturing process by allowing more ecient use of factory space. Todays automotive interiors are not made in automobile plants, for example, but by specialized auto interior plants that fabricate seat systems, ooring, acoustics, door panels, overheads, and cockpit systems. All of these are shipped to arrive just in time for integration into unnished cars according to dealers orders. In the airconditioning and refrigeration industry there has been the same explosive growth in the number of models oered. To ease the pressures on resourcesengineering, plant space, and labormanufacturers have outsourced fabrication of component subassemblies. Danfoss has become a major supplier not only of quality components, but also, increasingly, of subassemblies. One of the oldest known applications of prefabrication was The Sweet Track in Somerset Levels, England. The Neolithic walkway built in the 3800s B. C. was made of crossed wood and lime poles supporting oak planks. Since the road was built in the wetland setting, the parts had to be fabricated with stone cutting tools before they were brought to the construction site. Subassemblies By integrating subassemblies into product engineering strategies, OEMs focus on their core competencies, designing, assembling, and marketing their products. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=11http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=11Danfoss Dependable. Vol. 4 Issue 39 Danfoss is in a unique position to be a single source of subassemblies for the airconditioning and refrigeration industries because it supplies both high quality controls and line components, and also ecient and reliable compressors in a wide range of capacities. he subassemblies produced for partners vary greatly in size and complexity. For example, an air conditioning liquid line might be made up with a ball valve, a takeapart drier, and an electronic or mechanical expansion valve, along with interconnecting piping. More complex subassemblies can include multiple hermetic compressors up to 25 tons capacity each. On each subassembly design, application and factory engineers work closely with the OEM to develop a design with components sized appropriately, oriented to best advantage for the end product, and connections exactly placed for the manufacturers product. It is also possible to provide fabrication of complete intercooler subcooling subassemblies. Still another step up on the complexity scale for subassemblies, is providing complete compressor function assemblies with capacities up to 100 tons of refrigeration. hese units are congured with multiple Danfoss scroll compressors, prepiped and prewired for integration into OEM products. Danfoss Optyma condensing units, with capacities from 15 to 1312 HP, are also delivered completely prewired for dropin installation. he condensing units have higheciency condensers and compressors as standard equipment. hey are compact and quiet, and are wellsuited to subassembly manufacturing because they are customizable with a wide range of options. Optyma options include fan speed controls, oil separator, pressure switches, and a weatherproof housing. Economies through subassembly Manufacturers of airconditioning and refrigeration equipment outsource subassembly fabrication to achieve the same economies seen in todays home construction and automobile manufacturing. Integrating custommade subassemblies into larger products reduces cost and allows more ecient use of resources. Less inventory is required tooling is reduced and plant and warehouse space is saved. By integrating subassemblies into product engineering strategies, OEMs can focus on their core competencies, designing, assembling, and marketing their products. Danfoss, with its broad range of products for refrigeration and airconditioning, its deep engineering expertise, and its global logistic capabilities, will continue supplying custom subassemblies that add value for OEMs. Danfoss is in a unique position to be a single source of subassemblies for the airconditioning and refrigeration industries because it supplies both high quality controls and line components, and also efficient and reliable compressors in a wide range of capacities. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=12http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=12Danfoss Dependable. Vol. 4 Issue 310 Radiant heating installation calls for Danfoss Zone Control Panels ZCP and Danfoss thermostats. Antique home gets a new face and radiates comfort When Tom Auktakalnis got the call from a builder to bid on a radiant heating installation in an oldhome renovation, he jumped at the chance. As the owner of Magnum Heating and Cooling in Brooklin, Ontario, Canada, he had built up an interest in hydronic heating, and the upscale home in Rosedale, Toronto, was a perfect setting for such an application. The builder was looking to implement energy saving features, and the mechanical room was extremely small. The builder liked the solution, which included applying Danfoss Zone Control Panels ZCP and Danfoss thermostats with dualoor air sensors. Radiant heating involves heating with water that runs through tubing installed beneath the oor surface. Typical hydronic heating systems involve complicated controls and pipe work. Both of these areas are simplied by using the certied modular ZCP panels. People are beginning to see the advantages of applying hydronic heating, Auktakalnis says. Price is always a concern, but with the panels the labor costs are low and offset the equipment costs. The Rosedale project was a total teardown, rebuild, involving a lot of reconstruction. The Magnum team had to squeeze the controls and piping into a small mechanical room not even big enough to hold the hot water tank. The compact size of the Danfoss panels allowed them to utilize this extremely tight space. The builder chose to have the system installed in the basement, the bathrooms, the kitchen, the dining room, and the foyer, although a well designed Hydronic oor heating system can also be used with all oor surfaces, including hardwoods. The hydronic heating complements the luxury home well, avoiding bulky mechanical equipment and providing efcient heating within the living space. The special thermostats ensure that both the rooms and the oors maintain the homeowners comfort level and also safe energy. Training to heat To tap into the hydronic radiant heating market, Auktakalnis continues to develop his knowledge through experience and training, including courses at the Danfoss facility in Mississauga, Canada. Training includes seminars in applications, installations and specic market training programs. In the meantime, the homeowners in the renovated Rosedale home are living in cozy luxury. Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=13http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=13Danfoss Dependable. Vol. 4 Issue 311 Antique home gets a new face and radiates comfort The Magnum team had to squeeze the controls and piping into a small mechanical room not even big enough to hold the hot water tank. The compact size of the Danfoss panels allowed them to utilize this extremely tight space. Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=14http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=14These cost efcient systems are redening cool. 12Vol. 4 Issue 3 Development of the compact beverage machine refrigeration system is an example of applying scientic and engineering expertise for efcient solutions. Recently, Danfoss introduced a selfcontained refrigeration system including compressor, condenser, evaporator, fans, tubing, and wiring, fully charged and tested, in a metal and hybrid plastic enclosure. Developed in partnership with Coca Cola, the unit slides into vending machines, where its discharge and return air ports precisely line up with ductwork in the cabinet. Since the unit is entirely selfcontained, no piping connections are required, and the refrigeration system remains sealed at all times. One of the benets is that its installation or replacement does not require Environmental Protection Agency EPA certication. Also, the packaged system can be carried on the same truck that delivers beverages for restocking. Should a unit malfunction, it can be replaced immediately and returned to the factory for service. hese systems are cost ecient during vending machine manufacturing they save maintenance money and time, and they reduce the time that a vending machine is out of service in the event of a malfunction. In addition, there can be up to 24percent energy savings. Also there is a signicant improvement in beverage quality since pulldown time is cut to less than 10 hours, versus 19 in machines with traditional systems. APPLICATIONS BIG AND SMALL he applications for compact refrigeration are numerous. Computer central processing unit CPU chips that contain millions of transistors and resistors generate signicant amounts of heat. As they warm up, they lose eciency and slow down. It is wellknown that Compact Refrigeration Keeps it Cool From soft drinks to skin Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=15http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=15CPU chip density is growing exponentially. In fact, Moores Law ater Intel physicist Gordon Moore states that density doubles every eighteen months. To overcome the everincreasing heat production of new chips, manufacturers developed small refrigeration systems to directly remove heat from the chip. A number of manufacturers are working in partnership with Danfoss, whose compressors work well for this application because they are compact, ecient, low in noise and vibration, and have proven reliability. Compact compressors also have medical applications. hey are used, for example, to provide skin cooling before laser surgery. here are also specialized machines that cool blood to reduce patient temperature during thoracic surgery. In the latter application, a Danfoss compressor is used to chill a liquid medium that is then pumped through a cooling loop in the patients circulatory system. Cooling applications increase traveler comfort as well. Imagine the heat load on an aluminum jetliner sitting on tarmac at an airport. When the airplane is parked with its engines o, it generates no power for cooling, yet oten there are passengers aboard. he aircrat is absorbing heat from the sun. he passenger bodies are generating heat in signicant amounts oten well over 100, 000 Btuh. To keep everyone comfortable, mobile airconditioning systems are brought to the aircrat and supply comfort until the engines start and the planes own system begins to provide relief. Jetways, which connect airport gates to aircrat, are also airconditioned with dedicated systems, and Danfoss cooling serves here, as well. Vol. 4 Issue 313 Compact Refrigeration Keeps it Cool Danfoss selfcontained refrigeration system developed with Coca Cola Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=16http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=16Danfoss Dependable. Skiers Hit the Slopes In All Conditions THANKS TO ARTIFICIAL SNOWMAKING TECHNOLOGY, skiers can hit the slopes even when snow falls short. Areco Snowsystem, Inc. , which specializes in snow systems for downhill and crosscountry ski areas worldwide, has developed economic and environmentally sound technology to provide natural quality snow in varying conditions. The system applies oil burner nozzles in a unique way. The fantype machines are energy efcient, work at higher altitudes and higher temperatures, and apply technology for easily drawing water from local reservoir sources. Machinemade snow involves small particles of ice made in temperatures below the freezing point of 32 0C. The machine breaks the water into small particles, cools the heat of fusion, nucleates and distributes the resulting snow to the mountain or crosscountry hills. HOW COLD IS COLD Humidity has everything to do with temperature. On a 90 day with 40 percent relative humidity you feel much cooler than on an 85 day with 95 percent relative humidity. This is because when the air isnt moist, your body can radiate more heat. 14Vol. 4 Issue 3Danfoss Dependable. Oil burner nozzle2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=17http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=17Danfoss Dependable. Vol. 4 Issue 315 PRODUCT HIGHLIGHT In some regions, winter weather is a fact of life. Sudden snow storms and cold snaps can cause serious problems for people, trafc, and buildings. Considerable resources are spent on chemicals and snow removal efforts to keep outdoor areas free from snow and ice. Now there is a permanent solution to the hazards of winter weather. Danfoss GX electric snow melting systems are designed for a wide variety of surface materials including concrete, asphalt, paving stones, even grass. Improve safety and increase the bottom line by reducing costs of chemicals, snow clearing machinery or outside services. The Danfoss GX cable system was designed with the Installer in mind. The cable is preinstalled with correct centertocenter dis tances to reduce installation time by up to 70 percent. The cable uses a twin conductor, leaving only one power lead for the installer to connect instead of two. The GX components are made of durable materials that will stand up to the harshest job site conditions. The cable sheathing is made of tough PVC materials and the mat strings are made with reinforced berglass. Danfoss offers a 10year war ranty on all GX cables. The real power of the Danfoss GX snow melting system comes through in the intelligent GX 850 controller. The GX 850 is like having a miniweather station monitoring your system 24 hours a day. Collecting temperature and relative humidity information from sen sors embedded in the surface material, it is able to accu rately sense when to turn the system on and off. The GX 850 precisely balances the job of clearing snow and ice with the objective of minimizing energy consumption. Danfoss GX systems have proven themselves in countless installations around the world. Safe Walking and Driving with Danfoss GX Snowmelting System Areco discovered that Danfoss nozzles, originally designed for oil burners, also have an ideal application in snowmaking. The nozzles are an important part of the machine, explains Peter Geise, president of Arecos U. S. distributorship. Each of the 55 gallon drum snowmaking machines operates with a 20horsepower fan and uses about 300 nozzles, he says. The water nozzles create a spray and a very small air compressor injects a little air into them to nucleate the water, while the other nozzles eject the ne snow. The company works closely with the Danfoss factory to generate large quantities of the nozzles for the application. Snow in all conditions Although the fantype machines are much larger than guntype snowmakers, they are more energy efcient. The energy savings is a real advantage for resorts, says Geise. In some states the electric companies are offering rebates to buy this equipment because of its efciency. Areco has designed its machines to maintain efciency in varying conditions. Normally snowmaking temperatures above 27F 3C arent economical, but the special design of the nozzle head allows Areco snow machines to perform in marginal temperatures without excessive energy consumption. The snow machines are also ideal for high altitudes because they do not need big amounts of compressed air and provide the same high capacity at all snowmaking altitudes, from sea level to over 12, 000 feet. Danfoss Dependable. 2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=18http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=1816Vol. 4 Issue 3Danfoss Dependable. PRODUCT NEWS A new ADAPKOOL electronic supermarket controller from Danfoss provides flexible, easyto use network control for refrigeration, HVAC, and lighting, and will be fully backward compatible with earlier Danfoss controllers and IO products as well as those that have joined the Danfoss family through acquisitions. The AK2 SC255 supports a standard modem as well as an onboard Ethernet port for remote communications via LANWAN or Internet. In addition to a suite of tools for service technicians and maintenance managers, new ADAPKOOL features for refrigeration control include a unique algorithm for control of electronic evaporator pressure regulating EEPR valves that provides precise suctionside temperature control within tight limits based on the most loaded xture in a circuit. Control is driven by means of signals sent to a recently released AK2 IO module, each of which can interface with up to four EEPR valves. EEPR use is increasing in supermarket refrigeration because wellcontrolled electronic valves have a considerable eciency advantage over mechanical EPRs. An optional new feature is wireless communication to a store managers handheld PDA, allowing the manager to view temperatures and alarms for the whole store, and to view current HVAC status. here are several versions of the new controller In addition to the color display model, it is also available in a nondisplay version. he latter is designed for mounting on DIN rail, as are Danfoss AK2 input and output modules. For models with displays, both a boxmount version and a panelmount OEM version are available. A key feature of the new generation of ADAPKOOL supermarket products is their scalability. In stores where the extent of control and monitoring may increase, it is easy to install additional inputoutput modules, which snap together and mount securely on DIN rail. Only a single power connection is required, and there is a single communications connection to the existing ADAPKOOL network. For more information contact 4109318250. ADAPKOOL Electronic Supermarket Controller he new Danfoss fuel unit BFPS II Double Cut has a built in solenoid valve for direct electrically controlled cutin and cuto. his ensures that the oil is released at the adjusted pressure value and also provides an instant cuto which signicantly reduces the amount of soot that can be formed during oil burner shutdown. he normally closed solenoid valve stays closed when not energized and in series with an additional mechanically operated valve it provides double protection against oil leakage through the pump caused by Frozen Piston in gravity feed systems. For more information contact 4109318250. Danfoss Introduces a New Fuel Unit2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=19http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=19Danfoss Dependable. Reduce Harmonic Distortion with a New Advanced Harmonic Filter Danfoss North America Motion Controls now oers a compact, economical and completely integrated system solution for the growing number of applications in which IEEE 5191992 guidelines need to be addressed. As a costeective total solution, Danfoss Advanced Harmonic Solutions packages combine the reliability and performance of Danfoss VLT Series variable frequency drives with the new and innovative technology of AHF Series lters. he result is a complete solution that has been perfectly matched for optimal performance. he AHS 005 package matches a VLT Series drive with an AHF 005 unit, which reduces total harmonic current distortion THi D to less than 5 percent, providing performance similar to that of an 18pulse drive under ideal conditions. hese highly ecient lters suppress total harmonic voltage distortion hv D to lower levels than is otherwise achievable with 18pulse drives, especially in water and wastewater applications where background voltage distortion and phase imbalance are common. he AHS 010 package provides superior performance when compared with a 12pulse drive, reducing THi D to less than 10 percent. AHF Series Advanced Harmonic Filters feature a compact housing that is easily integrated into existing panel space, making them well suited for retrot applications on existing 6pulse VFDs. hey are designed for simple setup with cableincableout installation, and require no balancing, routine maintenance, or specialized startup. One appropriately sized lter module can be used in conjunction with several variable frequency drives. For more information contact 18004326367. New ZCPCMB Panel Capable of delivering 100 MBH, the Danfoss CMB panel was designed specically to work in conjunction with todays condensing and or modulating boilers in hydronic heating systems. he CMB bridges the gap between the heat source and the heat emitters, interfacing with the system operating controls that are integral to these high eciency boilers. he CMB is available with your choice of 3, 4, or 5 low temperature zones. Each zone circuit can supply a remote manifold with up to ve loops. Flow to each zone is controlled by a slowacting zone valve, which eliminates the water hammer eect commonly experienced with quick acting valves. Each zone is energized by a factory supplied thermostat. In addition to the main system circulator a second circulator is supplied to control the ow to an indirect water heater. his circulator is set up to work with the boilers DHW priority system. he CMB is equipped with a terminal strip that is prewired to accept input signals from thermostats and a DHW aquastat. he terminal strip also provides connections for a heat or DHW signal to the boiler. he CMB is equipped with an air eliminator and comes with a ll valve and an expansion tank connection. For more information contact 9056766000. New Standard Option Panels Provide Complete Machine and Process Control Danfoss North America Motion Controls introduces a new compact standard enclosure for 125 through 350 HP VLT Series drives. hese compact enclosures provide a complete control solution in nearly any industrial, HVAC, or water and wastewater application that utilizes variable frequency drives for machine and process control. Standard panels are now available for drives in the range from 125 through 350 HP at 460 volts, and 90 through 250 k W at 380 volts. Two heights of enclosures are used, one for VLT drives up to 200 HP, the other for 250, 300 and 350 HP. All models are designed for wall mounting with bottom conduit mounting. An optional pedestal base is available that allows for oor mounting of the packaged unit. All of the most popular panel options are included in the new standard conguration. Such features include fuseddisconnect panel and bypass panel congurations, re mode and run permissive mode, two and three contactor bypass, and common startstop functionality. Additional fea2007-07-03T12:18:15+02:00http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=20http://danfoss.ipapercms.dk/refrigerationandairconditioning/ra/solutions/us/solutionsv432005/?Page=20September 2005 The National Electrical Contractors Association NECA Show September 1820Ernest N. Morial Convention Center, New Orleans, LA. www. necaconvention. org 26th Annual FMI Energy Technical Service Conference September 1821Le Centre Sheraton, Montreal, Quebec. www. fmi. org Johnstone Supply Annual Members Meeting September 2123 Philadelphia Marriott, Philadelphia, PA The NAFEM Show September 2325Anaheim Convention Center, Anaheim, CA. www. thenafemshow. org RSES International Refrigeration Service Engineers Society Conference September 30October 1Omni Hotel, Atlanta, GA. www. rses. org October 2005 RETA October 47Sawgrass Marriott Resort and Beach Club, Ponte Vedra Beach, Florida. www. reta. com Rad Fest East October 1112Chantilly, Virginia Washington D. C. Area www. radiantpanelassociation. org WEFTEC October 29November 2Washington Convention Center, Washington, DC. See Danfoss booth 8557 in Hall E. HARDI October 29November 1J W Marriott Desert Ridge Resort Spa, Phoenix, AZ. www. hardinet. org AVS 52nd Annual International Symposium and Exhibition October 31November 2Hynes Convention Center, Boston, MA November 2005 American Institute of Architects AIA November 1518Minneapolis Convention Center. www. aiamn. org International Work Boat Show November 30December 1Ernest N. Morial Convention Center, New Orleans, LA. www. workboatshow. com CALENDAR OF EVENTS Please mention that you read about the event in Danfoss Solutions HOW TO CONTACT DANFOSS BALTIMORE, MD 7941 Corporate Drive Baltimore, MD 21236 4109318250 Fax 4109318256 www. acr. danfoss. com www. danfoss. comusic Refrigeration Air Conditioning Industrial and Heating Controls Components for Oil Burners GLENS FALLS, NY Danfoss Flomatic Valves 15 Pruyns Island Drive Glens Falls, NY 12801 8008332040 Fax 8003143155 EMail omaticomatic. com www. danfossomatic. com Water Controls LOVES PARK, IL Danfoss Drives 4401 N. Bell School Road Loves Park, IL 61111 8156398600 Fax 8156398000 www. namc. danfoss. com Drives Industrial Sales MILWAUKEE, WI 8800 W. Bradley Road Milwaukee, WI 53224 4143558800 Fax 4143556117 www. namc. danfoss. com www. na. water. danfoss. com Danfoss Graham HVAC Danfoss Water Wastewater Nessie Water Hydraulics MISSISSAUGA, ONT 7880 Tranmere Drive Mississauga, ON L5S 1L9, Canada 9056766000 Fax 9056760279 www. danfoss. ca Heating and Motion Controls SOMERSET, NJ Danfoss Bauer 31 Schoolhouse Road Somerset, NJ 08873 1212 7324698770 Fax 7324698773 www. danfoss. comdrivesus Gearmotors 7941 Corporate Drive Baltimore, Maryland 212362007-07-03T12:18:15+02:00