FORM 160.81-EG2 (905) Model YR Twin-Screw Compressor Liquid Chillers Design Level C 00562VIP 200 through 430 tons (60 Hz) 700 through 1500 kW (60 Hz) 170 through 365 tons (50 Hz) 600 through 1280 kW (50 Hz) Rated in Accordance with the latest edition of ARI STANDARD 550/590 Utilizing HFC-134a ASHRAE 90.
FORM 160.81-EG2 (905) Table of Contents PAGE INTRODUCTION ........................................................... 3 RATINGS ....................................................................... 4 OPTIVIEW CONTROL CENTER ................................... 5 LIST OF TABLES TABLE NO. MECHANICAL SPECIFICATIONS ................................ 12 PAGE 1 Water Flow Rate Limits ................. 20 SI METRIC CONVERSION ........................................... 19 2 Motor Voltage Options ...
FORM 160.81-EG2 (905) Introduction The YORK MAXE YR 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 optimized system performance (IPLV/NPLV).
FORM 160.81-EG2 (905) Ratings Rated in accordance with the latest issue of ARI Standard 550/590. full- and part-load vary significantly with each heat exchanger and pass arrangement. Computerized ratings are available through each YORK sales office. These ratings can be tailored to specific job requirements, and are part of the ARI Certification Program.
FORM 160.81-EG2 (905) OptiView Control Center 00550VIP OPTIVIEW CONTROL CENTER The YORK OptiView Graphic Display 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 screw chillers. The panel is configured with a 10.
FORM 160.81-EG2 (905) OptiView Control Center tacts include a Remote Mode Ready To Start, a Cycling 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.
FORM 160.81-EG2 (905) from 1°F (0.55°C) below to a minimum of 38°F (2.22°C). Restart is adjustable from setpoint up to a max. of 80°F (26.6°C). The Panel will check for flow to avoid freeze-up of the tubes. If flow is interrupted, shutdown will occur after a minimum of two seconds.
FORM 160.81-EG2 (905) OptiView Control Center Programmable: • On Setpoint • Off Setpoint The OIL SEPARATOR screen displays a close-up view of the chiller oil separator/sump.
FORM 160.81-EG2 (905) The SETUP is the top level of the general configuration parameters. It allows programming of the time and date, along with specifications as to how the time will be displayed. In addition, the chiller configuration as determined by the Micro Board program jumpers and program switches is displayed.
FORM 160.81-EG2 (905) OptiView Control Center (continued) The HISTORY screen allows the user to browse through the last ten faults; either safety or cycling shutdowns with the conditions, while the chiller is running or stopped. The faults are color coded for ease in determining the severity at a glance, recording the date, time and description. (See Display Messages for Color Code meanings.
FORM 160.81-EG2 (905) • • • • • Start Sequence Initiated System Run (with countdown timers) Start Inhibit Slide Valve Closing Before Shutdown System Lockout Delay Run Messages include: • Leaving Chilled Liquid Control • Motor Pulldown Limit • Motor – High Current Limit Start Inhibit Messages include: • Anti-Recycle XX min/sec.
FORM 160.81-EG2 (905) Mechanical Specifications GENERAL Each YORK MAXE YR Screw Chiller will be completely factory-packaged including evaporator, condenser, compressor, motor, OptiView control center and all interconnecting unit piping and wiring. The chiller will be painted prior to shipment and will be packaged to protect the unit during shipment. Performance will be certified in accordance with ARI Standard 550/590. The initial charge of refrigerant and oil will be supplied for each unit.
FORM 160.81-EG2 (905) and replacement. Stubout water connections having victaulic grooves will be provided. Vent and drain connections with plugs will be provided on each water box. CONDENSER Condenser will be horizontal shell and tube type, with a discharge gas baffle to prevent direct high velocity gas impingement on the tubes, and distribute the gas flow. An integral refrigerant sub-cooler is located under the condensing tube bundle section for improved thermodynamic cycle efficiency.
FORM 160.81-EG2 (905) Mechanical Specifications The control panel is provided with a thermal ice storage control mode to enhance system performance during ice building operation. In the thermal storage control mode, the chiller will stay at 100% load until the setpoint shutdown temperature is reached.
FORM 160.81-EG2 (905) 6.1. Cycling shutdowns with a Solid State Starter (LCSSS) will include: a. initialization failed b. serial communications c. requesting fault data d. stop contacts open e. power fault f. low phase (X) temperature sensor g. run signal h. invalid current scale selection i. phase locked loop j. low supply line voltage k. high supply line voltage l. logic board processor m. logic board power supply n. phase loss 7.
FORM 160.81-EG2 (905) Mechanical Specifications of refrigerant to a remote refrigerant storage/recycling system. Optional condenser isolation valves permit storage of the charge in the condenser. leak tests completed, functional run tests completed, and refrigerant charge in place. The oil charge, relief device and other miscellaneous materials shall be packed separately. PAINT Exterior surfaces are protected with one coat of Caribbean blue, durable alkyd-modified, vinyl enamel, machinery paint.
FORM 160.81-EG2 (905) Accessories and Modifications SOLID STATE STARTER up to four chillers and eight chillers respectively. The Solid State Starter is a reduced voltage starter that controls and maintains a constant current flow to the motor during startup. It is compact and mounted on the chiller at the motor terminals. Power and control wiring is factory supplied. Available for 200-600 volts, the starter enclosure is NEMA-1 with a hinged access door with lock and key.
FORM 160.81-EG2 (905) Accessories and Modifications water circuits. Switch for 115V-1-50/60 Hz service. A chilled water flow switch is required. Condenser water flow switch is optional. water piping. Bolted-on covers are arranged for convenient access. Victaulic nozzle connections are standard; flanges are optional. Marine water boxes are available for condenser and/or evaporator.
FORM 160.81-EG2 (905) SI Metric Conversion The following factors can be used to convert from English to the most common Sl Metric values. MULTIPLY THIS ENGLISH VALUE BY TO OBTAIN THIS METRIC VALUE TONS REFRIGERANT EFFECT (ton) KILOWATTS (kW) HORSEPOWER (hp) GALLONS / MINUTE (gpm) FEET (ft) INCHES (in) POUNDS (lb) FEET / SECOND (fps) FEET OF WATER (ft) POUNDS / SQ. INCH (psi) 3.516 NO CHANGE 0.7457 0.0631 304.8 25.4 0.4536 0.3048 2.989 6.
FORM 160.81-EG2 (905) Application Data The following is a user’s guide in the application and installation of MAXE Chillers, and will ensure the reliability and trouble-free life for which this equipment was designed. While this guide is directed towards normal, water-chilling applications, the YORK sales representatives can provide complete recommendations on other types of applications.
FORM 160.81-EG2 (905) necessary to provide a larger allowance for fouling, and/ or to specify special materials of construction. General Piping – All chilled water and condenser water piping should be designed and installed in accordance with accepted piping practice. Chilled water and condenser water pumps should be located to discharge through the chiller to assure positive pressure and flow through the unit.
FORM 160.81-EG2 (905) Application Data Series Arrangement (Refer to Fig. 2 & Fig. 3) – The chillers may be applied in pairs with chilled water circuits connected in series and condenser water circuits connected in series or parallel. All of the chilled water flows through both coolers with each unit handling approximately one-half of the total load. When the load decreases to a customer selected load value, one of the units will be shut down by a sequence control.
FORM 160.81-EG2 (905) can be factory insulated with 3/4" (19mm) or 1-1/2" (38mm) thick insulation, as an option. This insulation will normally prevent condensation in environments with dry bulb temperatures of 50°F to 90°F (10°C to 32°C) and relative humidities up to 75% [3/4" (19mm) thickness] or 90% [1-1/2" (38mm) thickness]. The insulation is painted and the surface is flexible and reasonably resistant to wear.
FORM 160.81-EG2 (905) Application Data would be the control transformer, unless it is supplied by a separate source. Min. Circuit Ampacity = Motor kW 100%Load PF x x Max. Motor FLA Max. Motor kW PF@%Load 125% of compr. FLA of all other + motor amps loads on the circuit Example: Branch Circuit Overcurrent Protection – The branch circuit overcurrent protection device(s) should be a timedelay type, with a minimum rating equal to the next standard fuse/breaker rating above the calculated value.
FORM 160.81-EG2 (905) TABLE 4 – 50 HZ ELECTRICAL DATA AMP NAME(MAX) COMP. PLATE VOLT. FLA LRA T0/T1 T2/T3 MOTOR DATA 100% 90% 80% 70% 60% 50% 40% 30% 20% MAX. KW (hp) PF EFF PF EFF PF EFF PF EFF PF EFF PF EFF PF EFF PF EFF PF EFF 380 364 1416 89.3 93.7 89.2 94.3 89.1 94.8 88.4 95.2 87.7 95.6 84.9 95.8 82.1 95.9 73.3 95.3 64.5 94.7 400 348 1488 88.2 94.1 87.7 94.6 87.2 95.0 85.9 95.3 84.5 95.6 80.4 95.7 76.3 95.7 65.6 94.9 54.9 94.
FORM 160.
FORM 160.
FORM 160.
FORM 160.81-EG2 (905) Dimensions (Ft.-In.) – Nozzle Arrangements EVAPORATOR – CONDENSER SHELL CODES DIM.
FORM 160.81-EG2 (905) Dimensions (Ft.-In.) – Nozzle Arrangements EVAPORATORS – COMPACT WATER BOXES REAR OF UNIT REAR OF UNIT A CC EVAPORATOR MOTOR END 1 EVAPORATOR GG 1" GG FLOOR LINE A H H A 1" COMPRESSOR END REAR OF UNIT REAR OF UNIT B J C K DD BB EVAPORATOR MOTOR END 2 EVAPORATOR GG 1" GG FLOOR LINE 2-PASS NOZZLE ARRANGEMENTS NO. OF EVAP. PASSES IN OUT DD BB C K B J NOTE: Water must enter through lower connection to achieve rated performance.
FORM 160.81-EG2 (905) Dimensions (mm) – Nozzle Arrangements EVAPORATORS – COMPACT WATER BOXES REAR OF UNIT REAR OF UNIT A NOZZLE ARRANGEMENTS NO. OF EVAP. PASSES IN OUT H CC CC EVAPORATOR MOTOR END 1 EVAPORATOR GG 1" GG FLOOR LINE A H H A 1" COMPRESSOR END REAR OF UNIT REAR OF UNIT B J C K 2-PASS NOZZLE ARRANGEMENTS NO. OF EVAP.
FORM 160.81-EG2 (905) Dimensions (Ft.-In.) – Nozzle Arrangements CONDENSERS – COMPACT WATER BOXES FRONT OF UNIT 1-PASS NOZZLE ARRANGEMENTS NO. OF COND. PASSES IN OUT Q P CC CC CONDENSER GG 1" MOTOR END 1 CONDENSER GG FLOOR LINE P Q Q P 1" COMPRESSOR END 2-PASS FRONT OF UNIT S U R T NOZZLE ARRANGEMENTS NO. OF COND.
FORM 160.81-EG2 (905) Dimensions (mm) – Nozzle Arrangements CONDENSERS – COMPACT WATER BOXES FRONT OF UNIT 1-PASS Q P CC CC CONDENSER MOTOR END 1 CONDENSER GG 1" GG FLOOR LINE NOZZLE ARRANGEMENTS NO. OF COND. PASSES IN OUT P Q Q P 1" COMPRESSOR END 2-PASS FRONT OF UNIT S U R T NOZZLE ARRANGEMENTS NO. OF COND.
FORM 160.81-EG2 (905) Dimensions (Ft.-In.
FORM 160.81-EG2 (905) Dimensions (ft. in.
FORM 160.
FORM 160.
FORM 160.81-EG2 (905) Dimensions (ft. in.
FORM 160.81-EG2 (905) Dimensions (ft. in.
FORM 160.
FORM 160.
FORM 160.81-EG2 (905) Dimensions (mm) – Floor Layout NEOPRENE ISOLATORS FLOOR LAYOUT CL EVAPORATOR CL SHELLS END SHEET END SHEET DIMENSION "C" From Fig. 3 (pgs. 26 & 27) CL CONDENSER 7/8" DIA. HOLE SUPPORT FOOT 3" 6" 3" DIMENSION "A" From Fig. 3 (pgs.
FORM 160.81-EG2 (905) Dimensions (mm) – Floor Layout NEOPRENE ISOLATORS FLOOR LAYOUT CL EVAPORATOR CL SHELLS END SHEET END SHEET DIMENSION "C" From Fig. 3 (pgs. 26 & 27) CL CONDENSER 22 mm DIA. HOLE 76.2 SUPPORT FOOT 152.4 76.2 DIMENSION "A" From Fig. 3 (pgs. 26 & 27) 25 DIMENSIONS ARE TYPICAL ALL 4 CORNERS 203.2 140 114 13 ISOLATOR TO BE CENTERED UNDER SUPPORT FOOT 178 152 114 13 114 140 140 13 13 mm STEEL PLATE 13 mm STEEL PLATE 25 mm DEFLECTED HEIGHT UNIT WEIGHT UP TO 7,423 KGS.
FORM 160.81-EG2 (905) Dimensions – Floor Layout SPRING ISOLATORS (Pgs. 26 & 27) (Pgs. 26 & 27) LD07378 ALL DIMENSIONS ARE IN INCHES (Pgs. 26 & 27) (Pgs.
FORM 160.81-EG2 (905) Weights UNIT WEIGHTS COMP.
FORM 160.81-EG2 (905) Weights COMP.
FORM 160.81-EG2 (905) Guide Specifications GENERAL Furnish and install where indicated on the drawings YORK MAXE Rotary Screw Liquid Chilling Unit(s). Each unit shall produce a capacity of tons, cooling GPM of from °F to °F when supplied with _____ GPM of condenser water at °F design ECWT. Power input shall not exceed kW with an IPLV (NPLV) of _____. The evaporator shall be 2 selected for ft °F hr/BTU fouling factor and a maximum liquid pressure drop of ft.
FORM 160.81-EG2 (905) Guide Specifications from the oil. Power wiring to the Control Center shall be factory installed. An oil eductor shall be provided to automatically remove oil which may have migrated to the evaporator and return it to the compressor. The oil separator shall be of a vertical design with no moving parts, and shall provide high-efficiency oil separation before the refrigerant enters the heat exchangers.
FORM 160.81-EG2 (905) Control Panel – The control panel shall include a 10.4in. diagonal color liquid crystal display (LCD) surrounded by "soft " keys which are redefined based on the screen displayed at that time. This shall be mounted in the middle of a keypad interface and installed in a locked enclosure. The screen shall detail all operations and parameters, using a graphical representation of the chiller and its major components.
FORM 160.81-EG2 (905) Guide Specifications 6.1 7. 8. 9. 10. 50 Cycling shutdowns shall include: a. Multiunit cycling - contacts open b. System cycling - contacts open c. Control panel - power failure d. Leaving chilled liquid - low temperature e. Leaving chilled liquid - flow switch open f. Condenser - flow switch open g. Motor controller - contacts open h. Motor controller - loss of current i. Power fault j.
FORM 160.81-EG2 (905) Other features include: low-line voltage, 115-volt control transformer; three-leg sensing overloads; phase rotation and single-phase failure protection; high tempera-ture safety protection, motor current imbalance and undervoltage safeties; open and close SCR protection; momentary power interruption protection. The LCSSS is cooled by a closed loop, fresh water circuit consist-ing of a water-to-water heat exchanger and 1/25 HP circulating pump.
P.O. Box 1592, York, Pennsylvania USA 17405-1592 Copyright © by York International Corporation 2002 Form 160.81-EG2 (905) Tele. 800-861-1001 www.york.com Subject to change without notice.
