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Summary of Contents for WaterFurnace WC Series
- Page 1 WC Series Variable Speed Dual Screw Chiller 175-275 Ton 60Hz 60 Hz Installation Information Water Piping Connections Electrical Data Microprocessor Control Startup Procedures Preventive Maintenance IM1903WC 07/19...
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Page 3: Table Of Contents
WC Series Variable Speed Screw Chiller Features........ -
Page 4: General Installation Information
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL General Installation Information Safety Considerations WARNING: To avoid equipment damage, do not leave the system filled in a building without heat Installing and servicing air conditioning and heating during cold weather, unless adequate freeze equipment can be hazardous due to system pressure and protection levels of antifreeze are used. -
Page 5: Model Nomenclature
Control Option B – Sound Kit B – Stand-Alone / BACnet Electrical Availability Voltage Dual Variable Speed 208-230/60/3 ● ● ● 460/60/3 575/60/3 7/21/2019 ● - “CH” only models All WC Series product is Safety listed under UL1995 thru ETL... -
Page 6: Wc Series Variable Speed Screw Chiller Features
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL The WC Series Variable Speed Screw Chiller Features HydroLink2 Aurora controls Fused power supply for Low impedance line reactors platform is a field proven high short circuit current reduce harmonic noise and... - Page 7 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL The WC Series Variable Speed Screw Chiller Features High efficiency compact Acoustical sound enclosure Structural Steel R134a screw compressors for for maximum sound reduction frame to reduce efficiency, reliability and vibration...
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Page 8: Operating Limits
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Operating Limits Condenser Evaporator Fluid Limit ˚F ˚C ˚F ˚C Min Entering Water Min Entering Brine 10.0 -1.1 Min Leaving Brine 21.1 -3.9 Min Leaving Water 21.1 Max Entering Water/Brine 56.1 26.7... -
Page 9: Dimensional Data
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Dimensional Data... - Page 10 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Dimensional Data cont. DETAIL A...
- Page 11 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Dimensional Data cont.
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Page 12: Rigging Data
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Rigging Data USE SPREADER BARS TO PREVENT DAMAGE OF UNIT... -
Page 13: Center Of Gravity
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Center of Gravity MODEL SHIPPING WEIGHT NET WEIGHT WCHVE 175 13,000 13,000 WCHVE 225 12,500 12,500 WCHVE 275 12,000 12,000... -
Page 14: Water Quality
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Water Quality 1.0. Minimum Fluid Volume 1.4. Flow Sensing Devices Water cooled chillers require a minimum amount of A fl ow switch or equivalent must be installed on the source and load side fl uid volume to ensure accurate evaporator for each unit to be installed. -
Page 15: Water Connections
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Water Quality Cont. 1.6. Insulation 1.7. Brine Applications Chillers are built with factory installed insulation on any Applications where the leaving fl uid temperature goes surface that may be subject to temperatures below the below 40°F a suitable brine solution must be used. -
Page 16: Electrical Data
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Electrical Data Compressor Total Rated Voltage Model Unit Circ Fuse/ Fuse/ Voltage Min/Max HACR HACR 460/60/3 414/506 190.0 156.0 20.0 312.0 351.0 460/60/3 414/506 225.0 185.0 20.0 370.0 416.0 460/60/3 414/506 290.0... -
Page 17: Wiring Schematics
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Status Modbus Add. ID Future Use Future Use Acc 2 – Dip 1 Acc 2 – Dip 2 GREEN K1-RV Relay X05-2 X05-1 K3-CC2 Relay K2-CC Rel ay K4-Fan Relay Status K1-RV Relay Modbus Add. - Page 18 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL inputs outputs 24V AC/DC S EC P RI RS-485-2 RS-485-1 outpu ts inputs...
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Page 20: Pressure Drop
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Evaporator Pressure Drop Condenser Pressure Drop... -
Page 21: Electrical System And Controls Safety Circuit
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Electrical System and Controls - Safety Circuit Chiller Safety Circuit • Safe Torque Off (STO) stantaneous Lock-Out • “motor-off” function. • Inverter (VFD) is powered anytime the chiller power is on. -
Page 22: Start-Up Service Data Collection
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Start-Up Data Collection Data Collection is to be schedule and implemented by a qualified representative. Prior to Powering Up Machine Suction Temperature Discharge Pressure Super Heat Hx1 Gas Pressure Subcooling Hx1 Sat... -
Page 23: Refrigeration Diagram
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Screw Refrigeration Cycle Analysis... -
Page 24: Reference Calculations
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Reference Calculations Heating Calculations: Cooling Calculations: LWT = EWT - LWT = EWT + GPM x 500* GPM x 500* NOTE: * When using water. Legend Abbreviations and Definitions LWT = Leaving Water Temperature... -
Page 25: Preventative Maintenance
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Preventative Maintenance Unit Heat Exchanger Maintenance Replacement Procedures Keep all air out of the water or antifreeze solution. When contacting the company for service or Keep the system under pressure at all times. Closed... -
Page 26: Startup And Troubleshooting Form
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL WC Commercial Screw Chiller Troubleshooting Form Company Name: _________________________________ Company Phone No: ______________________________ Technician Name: ________________________________ Date: __________________________________________ Model No: ______________________________________ Serial No:_______________________________________ Owner’s Name: __________________________________ Open or Closed Loop: _____________________________... -
Page 27: Chiller Startup Report
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Chiller Start-up Report PRELIMINARY CHECKS INSPECTION ITEM RESULT INITIALS INSPECT UNIT FOR SHIPPING OR INSTALLATION DAMAGE VERIFY UNIT IS LEVEL INSPECT WATER PIPING FOR PROPER INSTALLATION, AND THAT PIPING IS INSULATED ADEQUATELY... - Page 28 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Chiller Start-up Report cont. PRELIMINARY CHECKS CONT. INSPECTION ITEM RESULT INITIALS (GPM) SOURCE FLOW RATE GEO FLOW RATE (PSI) EVAPORATOR (LOAD) PRESSURE DROP EVAPORATOR PRESSURE DROP (PSI) CONDENSER PRESSURE DROP CONDENSER (SOURCE) PRESSURE DROP...
- Page 29 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Chiller Start-up Report cont. CONTROLS CHECKS INSPECTION ITEM RESULT INITIALS POWER ON INTERFACE AND ENSURE ALL PAGES AND DATA IS READING NORMALLY VERIFY USER MANAGEMENT IS SETUP PROPERLY (ENHANCED CONTROLS ONLY) VERIFY WATER TEMPERATURES CLOSELY MATCH REFRIGERANT SAT.
- Page 30 WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Chiller Start-up Report cont. RUN CHECKS INSPECTION ITEM RESULT INITIALS VERIFY COMPRESSOR OIL LEVEL (˚F) MODE (˚F) ENTERING HOT WATER TEMP (˚F) LEAVING HOT WATER TEMP (˚F) ENTERING COLD WATER TEMP (˚F)
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Page 31: Revision Guide
WC SERIES VARIABLE SPEED DUAL SCREW CHILLER INSTALLATION MANUAL Revision Guide Pages: Description: Date: Document Creation July 2019... - Page 32 175-300 Tons IM1903WW 07/19 Document: Installation Manual ©2019 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves the right to change design and specifi cations without notice.
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