Mark Witte, Chief Engineer for the Airport Marriott Hotel, needed to replace an ailing Trane 400 Ton absorption unit before the peak cooling season. In mid January 2000, Dave Timm, Service Operations Manager for Johnson Controls, approached ETS/York about possible solutions. ETS/York proposed a stock 375 ton York YS water cooled open drive screw compressor chiller with the following advantages:

• Economical operation & first cost
• Optiview graphics micro-computer control panel
• Compact dimensions for easy installation
• Stock chiller available delivery as opposed to the standard eleven week lead time from other competitors

Designated as a LEED platinum facility, the Alberici headquarters building was one of the first group of LEED platinum buildings in the Midwest. Corrigan Co. provided York Flexsys underfloor VAV boxes, two YCWS Hermetic Screw Compressor Water Cooled Chillers with R-407c non-ozone depleting refrigerant, and five York Airpak double wall air handling units.

This Ross & Baruzzini project nearing completion has three AirFlow Manufacturing Co. nominal 40,000 cfm outdoor custom heat recovery wheel units to provide outdoor air ventilation make up to America’s Center (St. Louis Convention Center).

This 1200 ton factory mounted VSD equipped Centrifugal chiller was one of the first machines sold with the Generation 4 Unit Mounted Variable Speed Drive cabinet.

The nominal unit efficiencies are .595 full load kw/ton and .384 NPLV kw/ton.

A York 40 Ton twin circuit high efficiency Scroll Compressor Air Cooled Condensing unit provides year round cooling for the operating suites.

When HBE Corporation decided to replace one of the building’s original 300 ton Carrier chillers, they chose a York YK-300 MaxE Centrifugal Chiller. Some of the features of the York Chiller are Optiview Control Panel with trend log capability, innovative unit mounted Optispeed Variable Speed Drive, and close coupled open drive motor.

The York Optiview panel has a full screen LCD graphic display mounted in the middle of a keypad interface. The graphics allow personnel to see several operating parameters at once in real time! Moving through the various screens is simple and intuitive with instructions for specific operations provided on many of the screens. The York Optispeed Drive is an energy saving Variable Speed Drive option. With it’s new Adaptive Capacity Control, the Optispeed drive learns and remembers optimum speeds for various load and water temperature combinations. This results in maximum energy savings.

• Optiview graphics micro-computer control panel
• Compact dimensions for easy installation
• Stock chiller available delivery as opposed to the standard eleven week leadtime from other competitors

Two York YK-1200 Ton R-134a open drive centrifugal chillers were provided as high efficiency replacements for existing units. These chillers arrived at the jobsite in full shrink-wrap covering to protect the internals and electronics from the elements a standard feature absent from other manufacturers.

This totally new convention center facility for the county of St. Charles has three York YT-450 Ton open drive Centrifugal Chillers and twelve Outdoor Solutions injected foam double-wall air handling units. Coupled with an ETS supplied JCI Metasys control system, this project represents state-of-the-art energy saving public facility design. Ross & Baruzzini was the mechanical consultant and Jarrell Contracting was the mechanical contractor.

Thirty year old Trane Open Drive Centrifugal Chillers were replaced with two energy efficient York YK-950 ton R-134a Open Drive Centrifugal Chillers with unit mounted Variable Speed Drives and 4160/460 volt retrofit transformers. The chillers have consistently outperformed their expected energy savings and are significantly quieter than the nominal 700 Ton chillers that they replaced. Douglas Fitts was the engineering manager for St Louis County; the mechanical consultant was Robert Zager with Richardson Engineering Group; and the installing mechanical contractor was Haberberger Mechanical, Inc.

A major chiller retrofit, this project involved two York YK-1200 Ton R-134a Open Drive Centrifugal Chillers with unit mounted Variable Speed Drives. Also provided was an ETS provided dedicated outside air unit.

Our latest Air Cooled Chiller innovation, the York model YCAV Latitude Variable Speed Drive Air Cooled Screw Chiller, is pictured here being installed at a new data processing center for Scottrade Securities. The two 150 Ton units serve the 24/7 IT facility and will save the owner upwards of 10-15% of the normal chiller operating cost year after year. Not only is energy savings a benefit of the YCAV chiller, but lower sound levels and zero electrical current inrush are important co-benefits. A third chiller for backup and N+1 design was added recently. Talk to one of our ETS/York sales engineers today about the York YCAV Latitude Variable Speed Drive Air Cooled Screw Chiller.

When the Webster Groves School District needed to replace the forty-four rooftop units on Steger School, they chose Facilities Solutions Group to orchestrate the design and construction process. Duct Systems, Inc. was the installing contractor and ETS, Inc. provided the new JCI brand rooftop equipment. The units needed to be high efficiency and have packaged DDC controls, both of which are available options with the Johnson Controls Rooftop Units.

Two, York YT-300 Ton Form-3 Disassembled Shipment Open Drive Centrifugal Chillers were provided on this nearly 30 year old chiller retrofit project. The York chillers shipped already disassembled to facilitate the hoisting to near the top floor of the tower building by the mechanical contractor.

It’s not often that a mechanical piece of equipment sells itself, but the York Compound YK Chiller/Heater may be an exception. This chiller serves as the 155 degree hot water generator for the Washington University School of Medicine CSRB project. The system was designed by Gerry Williams, past President of McClure Engineering Associates and assisted by Eric Utterson, now with 8760 Engineering, and installed by Peters Eichler Heating Co. The design parameters were 52/40 entering/leaving evaporator and 155/138 entering/leaving condenser conditions and 600 tons of cooling capacity. As you can see from the sign on the evaporator water box, the calculated energy savings are approximately $1500/day and growing.