FORM 160.81-EG1 (502) Model YR Twin-Screw Compressor Liquid Chillers Design Level A 00562VIP 200 through 430 tons (60 Hz) 700 through 1500 kW (50 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-EG1 Table of Contents PAGE INTRODUCTION .......................................................... 3 RATINGS ..................................................................... 4 OPTIVIEW CONTROL CENTER ................................. 5 LIST OF TABLES TABLE NO. MECHANICAL SPECIFICATIONS ............................... 13 PAGE 1 Water Flow Rate Limits ................ 19 2 Motor Voltage Variations .............. 22 3 60 Hz Electrical Data ....................
FORM 160.81-EG1 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 lowest system IPLV/NPLV.
FORM 160.81-EG1 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-EG1 OptiView Control Center 00550VIP 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 screw chillers. The panel is configured with a 10.
FORM 160.81-EG1 OptiView Control Center (continued) 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-EG1 The EVAPORATOR screen displays a cutaway view of the chiller evaporator. All setpoints relating to the evaporator side of the chiller are maintained on this screen. Animation of the evaporation process indicates whether the chiller is presently in RUN condition (bubbling) and liquid flow in the pipes is indicated by alternating shades of color moving in and out of the pipes.
FORM 160.81-EG1 OptiView Control Center (continued) • • • • • Slide Valve Unload (Manual) Slide Valve Auto Max. Load Temperature Minimum Load FLA Minimum Load Control Source The HOT GAS BYPASS screen, accessed from the COMPRESSOR screen, displays a pictorial of the bypass line and solenoid valve location on the chiller. The Hot Gas ON and OFF Setpoints are programmed on this screen and system parameters pertinent to Hot Gas Bypass operation are displayed.
FORM 160.81-EG1 Programmable: • Full-load Amps • Voltage Range • Starting Current • Open SCR • Shorted SCR • kWH Reset The SETPOINTS screen provides a convenient location for programming the most common setpoints involved in the chiller control. The Setpoints are shown on other individual screens, but to cut down on needless searching, they can all be found on this screen. This screen also serves as a gateway to a sub-screen for defining the setup of general system parameters.
FORM 160.81-EG1 OptiView Control Center (continued) The USER screen allows definition of the language for the chiller to display and defines the unit of measure. Programmable: • System Language • English/Metric Units The COMMS screen allows the user to define communications parameters.
FORM 160.81-EG1 collecting the data, but the oldest data drops off the graph from left to right at the next data collection interval. For ease of identification, each plotted parameter, title and associated Y-axis labeling is color coordinated. Display Only: • This screen allows the user to view the graphical trending of the selected parameters and is a gateway to the graph setup screens. Programmable: • Start • Stop • y-axis • x-axis The TREND SETUP screen is used to configure the trending screen.
FORM 160.
FORM 160.81-EG1 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-EG1 Mechanical Specifications (continued) sure Vessel Code, Section VIII, Division 1. Tubes shall be high-efficiency, internally and externally enhanced type having plain copper lands at all intermediate tube supports to provide maximum tube wall thickness at the support area. Each tube will be roller expanded into the tube sheets providing a leak proof seal, and be individually replaceable. Water velocity through the tubes will not exceed 12 fps.
FORM 160.81-EG1 3. Status messages indicating: a. system ready to start b. system running c. system coastdown d. system safety shutdown-manual restart e. system cycling shutdown-auto restart f. start sequence initiated g. start inhibit 4. The text displayed within the system status and system details field will be displayed as a color coded message to indicate severity: red for safety fault, orange for cycling faults, yellow for warnings, and green for normal messages. 5.
FORM 160.81-EG1 Mechanical Specifications (continued) 11. A numbered terminal strip for all required field interlock wiring. 12. An RS-232 port to output all system operating data, shutdown / cycling message, and a record of the last 10 cycling or safety shutdowns to a field-supplied printer. Data logs to a printer at a set programmable interval. This data can be preprogrammed to print from 1 minute to 1 day. 13. The capability to interface with a building automation system to provide: a.
FORM 160.81-EG1 Accessories and Modifications SOLID STATE STARTER FACTORY INSULATION OF EVAPORATOR 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. Electrical lugs for incoming power wiring are provided.
FORM 160.81-EG1 Accessories and Modifications (continued) MARINE WATER BOXES Marine water boxes allow service access for cleaning of the heat exchanger tubes without the need to break the 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. KNOCK-DOWN SHIPMENT The chiller can be shipped knocked-down into major assemblies (evaporator, condenser, driveline, etc.
FORM 160.81-EG1 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-EG1 Application Data (continued) evaporator and condenser when the pumps are shut off. Piping should be adequately supported and braced independently of the chiller to avoid the imposition of strain on chiller components. Hangers must allow for alignment of the pipe. Isolators in the piping and in the hangers are highly desirable in achieving sound and vibration control.
FORM 160.81-EG1 nected in series and condenser water circuits connected in 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. Since all water is flowing through the operating unit, that unit will cool the water to the desired temperature.
FORM 160.81-EG1 Application Data (continued) In addition, the ASHRAE Standard 15 requires a refrigerant vapor detector to be employed for all refrigerants. It is to be located in area where refrigerant from a leak would be likely to concentrate. An alarm is to be activated and the mechanical ventilation started at a value no greater than the TLV (Threshold Limit Value) of the refrigerant. ELECTRICAL CONSIDERATIONS Motor Voltage – Low voltage motors (200 - 600 volts) are furnished with six leads.
FORM 160.81-EG1 FLA Motor kW Max. Motor kW = x The locked rotor amperes (LRA) are read directly from Tables 3 and 4 for specific Motor Code and voltage. This is because the LRA is dependent only on motor size and voltage and is independent of input power (kW). Max. Motor FLA The benefit from the FLA correction is the possible use of smaller power wiring and/or starter size. Inrush amperes (IRA) depend on LRA and the type of starter applied.
FORM 160.81-EG1 TABLE 4 – 50 HZ ELECTRICAL DATA AMP NAME(MAX) COMP. PLATE VOLT. FLA LRA MOTOR DATA 100% 90% 80% PF EFF PF EFF PF 70% 60% EFF PF EFF PF EFF 50% PF EFF 40% 30% PF EFF PF EFF 20% MAX. PF EFF KW (hp) 380 364 1414 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 T0/T1 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 94.1 415 333 1544 89.2 93.8 89.1 94.4 88.9 94.9 88.
FORM 160.
FORM 160.
FORM 160.81-EG1 DIM. A B C D E F G L M DIM. H J T0 & T1 COMPRESSORS T-T V-V T-T 10'–0" 14'–0" 3048 mm 7'–5-1/8" 7'–5-1/8" 2264 mm 5'–1" 5'–1" 1550 mm 2'–6" 2'–6" 762 mm 2'–7" 2'–7" 787 mm 1'–3" 1'–3" 381 mm 1'–3-1/2" 1'–3-1/2" 394 mm 2-3/4" 2'– 2-3/4" 70 mm 1'–3" 3'–3" 381 mm H J REAR HEAD 2 PASS 8-3/4" 375 — H J H J 343 — — 375 REAR HEAD 2 PASS 222 3 PASS — 1'–0-1/2" — 318 3 PASS — 318 REAR HEAD 2 PASS 194 WATER BOX DIMENSIONS (FT.
FORM 160.81-EG1 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 2 BB EVAPORATOR EVAPORATOR GG 1" MOTOR END GG FLOOR LINE 2-PASS NOZZLE ARRANGEMENTS NO. OF EVAP. PASSES IN OUT DD BB C K B J NOTE: Water must enter through bottom connection to achieve rated performance.
FORM 160.81-EG1 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-EG1 Dimensions (Ft.-In.) – Nozzle Arrangements CONDENSERS – COMPACT WATER BOXES FRONT OF UNIT FRONT OF UNIT 1-PASS Q CC CC CONDENSER GG 1" FRONT OF UNIT T R 2 BB BB CONDENSER CONDENSER S U MOTOR END FRONT OF UNIT 3-PASS Y W X V NOZZLE ARRANGEMENTS NO. OF COND. PASSES IN OUT DD DD 3 BB BB CONDENSER CONDENSER 1" R T NOTE: Water must enter through bottom connection to achieve rated performance GG 1" FLOOR LINE FRONT OF UNIT GG NOZZLE ARRANGEMENTS NO.
FORM 160.81-EG1 Dimensions (mm) – Nozzle Arrangements CONDENSERS – COMPACT WATER BOXES FRONT OF UNIT FRONT OF UNIT 1-PASS Q CC CC CONDENSER 1" FRONT OF UNIT FRONT OF UNIT 2-PASS S T R DD NOZZLE ARRANGEMENTS NO. OF COND. PASSES IN OUT DD BB 2 BB CONDENSER GG FRONT OF UNIT GG 1" FLOOR LINE FRONT OF UNIT 3-PASS W X V DD NOZZLE ARRANGEMENTS NO. OF COND.
FORM 160.81-EG1 Dimensions (In.) – 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 3" SUPPORT FOOT 6" 3" DIMENSION "A" From Fig. 3 (pgs.
FORM 160.81-EG1 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-EG1 Dimensions – Floor Layout SPRING ISOLATORS (Pgs. 26 & 27) (Pgs. 26 & 27) LD07378 ALL DIMENSIONS ARE IN INCHES (Pgs. 26 & 27) (Pgs.
FORM 160.81-EG1 Weights UNIT WEIGHTS COMP.
FORM 160.81-EG1 Guide Specifications GENERAL Furnish and install where indicated on the drawings YORK MAXE Rotary Screw Liquid Chilling Unit(s). Each tons, cooling unit shall produce a capacity of from °F to °F when supplied GPM of _____ GPM of condenser water at with kW with an IPLV °F. Power input shall not exceed _____. The evaporator shall be (NPLV) of ft2 °F hr/BTU fouling factor and a selected for ft. Water side maximum liquid pressure drop of shall be designed for 150 or 300 psig working pressure.
FORM 160.81-EG1 A 500W immersion oil heater shall be provided and temperature actuated to effectively remove refrigerant 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-EG1 Guide Specifications operated isolation valves located at the inlet to the oil separator and outlet of the condenser (isolation valves optional). Additional valves shall be provided to facilitate removal of refrigerant charge from the system. OPTIVIEW CONTROL CENTER General – The chiller shall be controlled by a stand-alone microprocessor based control center.
FORM 160.81-EG1 n. Oil - high pressure o. Control panel - power failure p. Watchdog - software reboot 5.1. Safety shutdowns with a Solid State Starter (LCSSS) shall include: a. Shutdown - requesting fault data... b. High instantaneous current c. High phase (X) heatsink temperature - running d. 105% motor current overload e. Motor or starter - current imbalance f. Phase (X) shorted SCR g. Open SCR h. Phase rotation 6.
Guide Specifications Standard features include: digital readout at the OptiView Control Center of the following: Display Only: • 3-phase voltage A, B, C • 3-phase current A, B, C • Input power (kW) • kW Hours • Starter Model • Motor Run (LED) • Motor Current % Full-load Amps • Current Limit Setpoints • Pulldown Demand Time Left Programmable: • Local Motor Current Limit • Pulldown Demand Limit • Pulldown Demand Time REMOTE ELECTRO-MECHANICAL COMPRESSOR MOTOR STARTER (OPTIONAL) A remote electro-mechanical st
