FORM 160.80-EG1 (808) Model YS Rotary Screw Liquid Chillers Design Level E Rated in Accordance with the latest edition of ARI STANDARD 550/590 100 thru 675 tons (315 thru 2375 KW) r-22 and r-134a TABLE OF CONTENTS pAGe INTRODUCTION ........................................................... RATINGS ....................................................................... OpTIVIew CONTROL CeNTeR ................................... MeCHANICAL SpeCIFICATIONS ................................ ACCeSSORIeS & MODIFICATIONS ............................ UNIT COMpONeNTS ................................................... AppLICATION DATA ..................................................... DIMeNSIONS ­ STD..................................................... S0-S3 Compressor.................................................... S4 & S5 Compressor ............................................... Compact water Box Nozzle Arrangements ............... Floor Layout .............................................................. Cooler Nozzle Arrangements .................................... Condenser Nozzle Arrangements ............................. weIGHTS ­ STD........................................................... DIMeNSIONS ­ MeTRIC .............................................. S0-S3 Compressor.................................................... S4 & S5 Compressor ............................................... Compact water Box Nozzle Arrangements ............... Floor Layout .............................................................. Cooler Nozzle Arrangements .................................... Condenser Nozzle Arrangements ............................. weIGHTS ­ MeTRIC .................................................... 3 4 5 13 17 19 20 28 28 29 30 31 32 34 36 38 38 39 40 41 42 44 46 LIST OF TABLES TABLe NO. pAGe 1 2 3 4 5 6 water Flow Rate Limits.................. 20 Motor Voltage Variations................ 23 60 Hz electrical Data ..................... 25 Motor Starters ................................ 25 50 Hz electrical Data ..................... 26 Available Compressor/Shell/ Motor Combinations (R-22 & R-134a) ............................ 26 Available Compressor/Shell/ Motor Combinations (50 Hz, R-134a Only)..................... 27 7 GUIDe SpeCIFICATIONS ............................................ 48 MeTRIC CONVeRSION TABLeS ................................. 53 NOMENCLATURE The model number denotes the following characteristics of the unit: YS Model Cooler Code Condenser Code Compressor Code BB BA S0 ­ CF E S Special Features Design Level Motor Code power Supply: ­ for 60 Hz 5 for 50 Hz JOHNSON CONTROLS Introduction The YORK Millennium YS Chiller offers a complete combination of features for total owner satisfaction. MATCHED COMPONENTS MAXIMIZE EFFICIENCY Actual chiller efficiency cannot be determined by analyzing the theoretical efficiency of any one chiller component. It requires a specific combination of heat exchanger, compressor, and motor performance to achieve the lowest system kw/Ton. YORK Millennium chiller technology matches chiller system components to provide maximum chiller efficiency under actual ­ not just theoretical ­ operating conditions. REAL-wORLD ENERGY PERFORMANCE Johnson Controls pioneered the term "Real-world energy" to illustrate the energy-saving potential of focusing on chiller performance during off-design conditions. Off-design is not only part load, but full load operation as well, with reduced entering condenser water temperatures (eCwTs). This is where chillers operate 99% of the time, and where operating costs add up. The YS Millennium chillers are the only chillers designed to operate on a continuous basis with cold eCwT and full condenser flow at all load points, taking full advantage of Real-World conditions. This type of operation benefits the cooling tower as well; reducing cycling of the fan motor and ensuring good coverage of the cooling fill. YORK Millennium chillers offer the most efficient Realworld operation of any chiller, meaning lower operating costs and an excellent return on your chiller investment. OPEN DRIVE DESIGN Hermetic-motor burnout can cause catastrophic damage to a chiller. The entire chiller must be cleaned, and the refrigerant replaced. YORK Millennium screw chillers eliminate this risk by utilizing air-cooled motors. Refrigerant never comes in contact with the motor, preventing contamination of the rest of the chiller. FORM 160.80-EG1 (808) Insurance companies that offer policies on large air conditioning equipment often consider air-cooled motors a significant advantage over hermetic refrigerant cooled units. HIGH-EFFICIENCY HEAT EXCHANGERS Millennium chiller heat exchangers offer the latest technology in heat transfer surface design to give you maximum efficiency and compact design. Water-side and refrigerant-side design enhancements minimize both energy consumption and tube fouling. FACTORY PACKAGING REDUCES FIELD LABOR COSTS YORK Millennium screw chillers are designed to keep installation costs low. where installation access is not a problem, the unit can be shipped completely packaged, requiring minimal piping and wiring to complete the installation. For those units utilizing a factory installed Solid-State Starter, the three power leads provide all power to the chiller and its auxiliaries. TAKE ADVANTAGE OF COLDER COOLING TOwER wATER TEMPERATURES YORK Millennium screw chillers are designed to take full advantage of colder cooling tower water temperatures, which are naturally available during most operating hours. Considerable energy savings are available by letting tower water temperature drop, rather than artificially holding it above 75°F (23.9°C), especially at low load, as some chillers require. U.L. ACCEPTANCE ­ YOUR ASSURANCE OF RELIABILITY YORK Millennium screw chillers are approved for listing by Underwriter's Laboratories for the United States and Canada. Recognition of safety and reliability is your assurance of trouble-free performance in day-to-day building operation. JOHNSON CONTROLS Ratings Rated in accordance with the latest issue of ARI Standard 550/590. able through each Johnson Controls sales office. These ratings can be tailored to specific job requirements, and are part of the ARI Certification Program. OFF-DESIGN PERFORMANCE Since the vast majority of its operating hours are spent at off-design conditions, a chiller should be chosen not only to meet the full-load design, but also for its ability to perform efficiently at lower loads and lower tower water temperatures. It is not uncommon for chillers with the same full-load Kw/TON to have an operating cost difference of over 10% due to part-load operation. part-load information can be easily and accurately generated by computer. And because it is so important to an owner's operating budget, this information is now standard within the ARI Certification Program in the form of an Integrated part-Load Value (IpLV), and Non-Standard part-Load Value (NpLV). The IpLV / NpLV formulas from ARI Standard 550/590 closely track chiller operations, and provide a more accurate indication of chiller performance than the previous IpLV / ApLV formula. A more detailed analysis must take into account actual building load profiles, and local weather data. part-load performance data should be obtained for each job using its own design criteria. ARI CERTIFICATION PROGRAM The performance of YORK Millennium chillers is certified to the Air Conditioning and Refrigeration Institute (ARI) complying with the certification sections of the latest issue of ARI Standard 550/590. Under this Certification Program, chillers are regularly tested in strict compliance with this Standard. This provides an independent, third-party verification of chiller performance. COMPUTERIZED PERFORMANCE RATINGS each chiller is custom-matched to meet the individual building load and energy requirements. A large number of standard heat exchangers and pass arrangements are available to provide the best possible match. It is not practical to provide tabulated performance for each combination, as the energy requirements at both full and part- load vary significantly with each heat exchanger and pass arrangement. Computerized ratings are avail- JOHNSON CONTROLS OptiView Control Center FORM 160.80-EG1 (808) OPTIVIEw CONTROL CENTER The YORK OptiView Control Center, furnished as standard on each chiller, provides the ultimate in efficiency, monitoring, data recording, chiller protection and operating ease. The control center is a factory mounted, wired, and tested state-of-the-art microprocessor based control system for R-134a or R-22 screw chillers. The panel is configured with a 10.4 inch diagonal color Liquid Crystal Display (LCD) surrounded by "soft" keys, which are redefined with one keystroke based on the screen display at that time. This revolutionary development makes chiller operation quicker and easier than ever before. Instead of requiring keystroke after keystroke to hunt for information on a small monochrome LCD screen, a single button reveals a wide array of information on a large, full-color illustration of the appropriate component, which makes information easier to interpret. This is all mounted in the middle of a keypad interface and installed in a locked enclosure. The LCD display allows graphic animated display of the chiller, chiller sub-systems and system parameters; this allows the presentation of several operating parameters at once. In addition, the operator may view a graphical representation of the historical operation of the chiller as well as the present operation. A Status Bar is displayed at all times on all screens. It contains the System - Status Line and Details Line, the Control Source, Access Level, Date and Time. All date representations and calculations use four digits for the year to provide Year 2000 compliance. During the Start Sequence and System Lockout Delay, the system status will include a countdown timer indicating the time remaining. The control panel is compatible with the YORK Solid State Starter (optional), electro-mechanical (e-M) starter, or any customer supplied e-M starter that complies with the YORK R-1051 standard. The locations of various chiller parameters are clearly marked and instructions for specific operations are provided. The panel verbiage is available in other languages as an option, with english always available. Data can be displayed in either english or Metric units, plus keypad entry setpoints of 0.1 increments. Security access is provided to prevent unauthorized access and/or a change of setpoints. This is accomplished with three different levels of access and passwords for each level. There are screens, displayed values, programmable setpoints and manual controls not shown available to service the chiller. They are only displayed when logged in at the service access level. The Advanced Diagnostics and troubleshooting information for the chiller and the panel is also included. The panel is fused through a 1-1/2 or 2 KVA transformer in the compressor motor starter to provide individual over-current protected power for all controls. Numbered terminal strips for wiring such as Remote Start/Stop, Flow Switch, Chilled water pump and Local or Remote Cycling Device are provided. The panel also provides field interlocks that indicate the chiller status. These contacts include a Remote Mode Ready To Start, a Cycling JOHNSON CONTROLS 5 OptiView Control Center - continued Shutdown, a Safety Shutdown and a chiller Run Contact. pressure transducers sense system pressures and thermistors sense system temperatures. The output of each transducer is a DC voltage that is analogous to the pressure input. The output of each thermistor is a DC voltage that is analogous to the temperature it is sensing. Setpoints can be changed from a remote location via 0-10VDC, 4-20mA, contact closures or through serial communications. The adjustable remote reset range [up to 20°F (11.1°C)] provides flexible, efficient use of remote signal depending on reset needs. Serial data interface to the YORK ISN Building Automation System (BAS) is through the General protocol Interface Card (GpIC), which can be mounted inside the Control Center. This printed circuit board requests the required data from the Micro Board and makes it available for the YORK ISN network. This optional board is available through the Johnson Controls BAS group. The operating program is stored in non-volatile memory (epROM) to eliminate chiller failure due to AC power failure/battery discharge. programmed setpoints are retained in lithium batterybacked RTC memory for 11 years minimum. Smart Freeze point protection can operate the chiller as low as 36°F (2.22°C) leaving chilled water temperature, without nuisance trips on Low water Temperature. The sophisticated program and sensor monitors the chiller water temperature to pr ...