When you install a new central air conditioning system, the unit is sized to handle the "worst case" scenario -- the hottest days of summer. The problem is that conventional systems always operate
"Full Speed Ahead"
even when your home needs minimal cooling power.

It's like driving your car by flooring the accelerator at each green light, only to screech to a halt at the next red light. Think of the wasted fuel, not to mention wear on your vehicle.

Now, you can get TWO Levels of Cooling Performance with the YORK Stealth™ Series, featuring the industry's first Twin-Single Compressor.

This revolutionary T-S technology allows operation at one level for those "maximum load" situations, and another for less demanding cooling situations.

But what makes T-S operation so remarkable isn't the compressor itself. It's in the way it's controlled, with the exclusive YORK Comfort Enhancer™ Control -- a microcomputer that flawlessly regulates first- and second-stage operation, sensing the need for maximum cooling and moving the system immediately into "high gear," eliminating the frequent cycling that occurs with other systems.

Over the years, a YORK Stealth Series System could actually pay for itself, Delivering up to %60 Savings in operating costs!

A Stealth unit can reach to 16.2 SEER* which is more than double the efficiency of older units. Look at the chart at the right to see, in actual dollars, how much a YORK Stealth Series could save you in estimated operating costs.

Because of its ability to operate at two capacities, A Stealth Series System Delivers Much More Comfort, providing you with better humidity control, reduced air stratification, and more efficient air filtration. And, with up to 74% fewer starts and stops, the Stealth Series will provide unprecedented dependability and greatly extended system life.

*In 1992, the Federal Government established minimum efficiency requirements for air conditioning equipment. The standard of measurement is the "SEER" (Seasonal Energy Efficiency Ratio) raking system, and the higher the SEER rating number, the more energy efficient the unit. The government's established minimum rating for air conditioning is 10 SEER. If your present air conditioning system was installed before 1992, it's likely to be highly inefficient by today's standards.