EMERSON CLIMATE TECHNOLOGIES™ INTRODUCES ULTRATECH™ UNITARY CONTROL FOR RESIDENTIAL UNITS

Innovative addition to UltraTech Home Series™ product line integrates Comfort Alert™ Diagnostics with other electromechanical controls on one circuit board

ST. LOUIS, January 23, 2006 – Emerson Climate Technologies, a business of Emerson (NYSE: EMR), today introduced its UltraTech™ unitary control for use in residential heat-pump and air conditioning applications. Part of Emerson’s UltraTech Home Series™ product line, the first-of-its-kind control combines several electromechanical controls with Emerson’s Comfort Alert™ Diagnostics to provide an unprecedented level of system reliability, ease of service, enhanced performance and communication to the homeowner. The product is currently available for installation with original equipment manufacturers (OEMs).

The UltraTech unitary control incorporates a contactor, defrost control, two-speed compressor and fan control, and stand-alone short-cycle control with Comfort Alert Diagnostics onto a single circuit board with microprocessor control. This feature allows the outdoor unit to monitor its operation, display status and error codes and store fault history for service-technician retrieval. The Active Protection benefit of Comfort Alert Diagnostics helps the homeowner avoid potentially damaging compressor operation by automatically shutting down the system for service and repair if a major system problem occurs.

“The UltraTech unitary control opens up a whole new world of opportunities, because it allows for closer integration and control of today’s systems,” William Shockley, vice president of sales and marketing, said. “The product expands on the innovative features provided by Comfort Alert Diagnostics, with new status codes and system information that provides even richer diagnostics than before. The UltraTech unitary control also simplifies the wiring inside the control panel by removing numerous interconnect wires and has several other key features that make it a more flexible and reliable choice for OEMs.”

Developed by Emerson’s White-Rodgers division, the UltraTech unitary control has been optimized to work in conjunction with the UltraTech Home Series line of products, which also includes the White-Rodgers® 90 Series™ Blue™ touchscreen thermostat and Copeland Scroll UltraTech™ compressor.

The UltraTech unitary control has several product features that make it a unique addition to Emerson’s UltraTech Home Series. One such feature is the replacement of the contactor by a microprocessor-controlled, sealed relay. The relay has an embedded optical sensor to detect contact arcing and adjust the timing for opening the contacts, to provide near-zero cross-switching with minimal contact-point damage. Using a sealed relay also means that insects, like fire ants, can’t enter the unit and foul the contact points. Because the compressor and outdoor fan are switched by separate relays, “light flicker” can be reduced by effectively breaking up one large load into two smaller loads. Finally, the sealed switch features a manual-operation push button that can be used to run the compressor and fan for up to five minutes, thereby freeing the contractor’s hands to do other work during system maintenance.

According to David Vie, director of marketing, lab tests of five-ton R-410A compressors indicated that the sealed relay switch can cycle between 800,000 and one million times, an improvement over current contactors. “During the testing phase, three contactors on the same test failed before even reaching 200,000 cycles,” he said. “When you’re in the field, you want a solution that is going to work, that is reliable enough to last for the life of the system. The sealed relay switch in the UltraTech unitary control board presents an opportunity for OEMs to improve the reliability of their units in the field.”

Another important feature is the integration of Comfort Alert Diagnostics, which is built into the UltraTech unitary control to pinpoint electrical and system-related problems and communicate faults to the service technician at the outdoor unit. Like stand-alone versions of Comfort Alert Diagnostics, the UltraTech unitary control helps to improve technician diagnostic accuracy by 60 percent. Additionally, the UltraTech unitary control can display a simple fault indication to the homeowner, acting like a “check engine” light inside the home, when connected to a thermostat with an “L” terminal input.

Prior to the introduction of the UltraTech unitary control, Active Protection was only available when systems with a stand-alone Comfort Alert module were paired with special White-Rodgers thermostats. The Active Protection feature recognizes repeat occurrences of fault conditions over time and enables the system to take steps to protect itself when compressor damage could occur. When installed with a thermostat having an “L” terminal input, homeowners are alerted to these faults through the thermostat display, so that the contractors can be called.

Additional features that improve system functionality and reliability include short-cycle protection, high-/low-voltage protection, pressure-switch error alerts, control of two-speed PSC or ECM outdoor fan motors, and staging control of Copeland Scroll UltraTech compressors.

According to Vie, the UltraTech unitary control was developed with input from OEM Rheem, which will begin installing units in its residential air conditioning systems in May. “Having the feedback from an OEM during the development process was invaluable,” said Vie. “We knew from our research with contractors just how valuable Comfort Alert Diagnostics is; with the feedback from an OEM that installs this technology, we were able to refine the design and testing process to create a product that will be useful to everyone who comes into contact with it.”

Future versions of the UltraTech unitary control will have the ability to provide system-wide communication, which will allow all parts of the system, including thermostat, furnace and outdoor condensing unit, to communicate with one another. This will mean an even more efficient HAC system for the homeowner.

For more information on the UltraTech unitary control, please visit EmersonClimate.com. The technology will also be on display throughout the AHR (Air-Conditioning Heating Refrigeration) Expo, being held January 23 through 26, 2006, at McCormick Place in Chicago. Emerson Climate Technologies is located in booth 5010.

About Emerson
Emerson (NYSE: EMR), based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2005 were $17.3 billion. For more information, visit GoToEmerson.com.

About Emerson Climate Technologies

Emerson Climate Technologies, a business of Emerson, is the world’s leading provider of heating, ventilation, air conditioning and refrigeration solutions for residential, industrial and commercial applications. The group combines best-in-class technology with proven engineering, design, distribution, educational and monitoring services to provide customized, integrated climate-control solutions for customers worldwide. Emerson Climate Technologies’ innovative solutions, which include industry-leading brands such as Copeland Scroll and White-Rodgers, improve human comfort, safeguard food and protect the environment. For more information, visit EmersonClimate.com.