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Sterling SCW Series 7-6 Viewing Active Alarms and Handling Alarm Conditions , , 7-7 Viewing and Setting System Temperatures ,

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Page 46 of 77 SCW Series Central Chilling Stations

7-6 Viewing Active Alarms and Handling Alarm Conditions

! CAUTION

Never attempt to service a unit until a qualified

electrician has opened and locked out the main

disconnect using OSHA 1910.147 standards.

All electrical connections must be done by a qualified

electrician.

! WARNING

Disconnect all power to the unit, let the unit

cool down, and turn off the water prior to any

servicing.

Failure to do so can result in SERIOUS INJURY

OR DEATH!

7-7 Viewing and Setting System Temperatures

Contents

Main Central Chilling Stations Important! Read Carefully Before Attempting to Install or Operate Equipment Page Safety Considerations Table of Contents 1 General Information .................................................8 2 Shipping Info rmation .............................................16 3 Installation............................................................... 20 4 Sequence Of Operation........................................277 5 Startup Checklists..................................................34 6 Graphic Pane l Devices........................................... 41 7 Using the Standard Touchscreen Interface.........43 8 Using the Advanced Touchscreen Interface........48 Page Page 1 General Information 1-1 Introduction 1-2 Necessary Documents 1-3 Models Covered 1-4 Standard Features 1-5 Available Options Standard Features on Remote Condensers Model Number Nomeclature Page 12 of 77 SCW Series Central Chilling Stations Figure 1 Typical Two-Circuit 60-195 Ton Water Cooled Chiller SCW Series Central Chilling Stations Page 13 of 77 Page 14 of 77 SCW Series Central Chilling Stations Figure 2 Typical Two-Circuit 60-195 Ton Remote Air Cooled Chiller SCW Series Central Chilling Stations Page 15 of 77 SCWR Series Remote Condenser Models 2 Shipping Information 2-1 Unpacking and Inspection 2-2 In the Event of Shipping Damages Page 2-6 Uncrating Your New Chiller ! WARNING ! Page 3 Installation 3-1 Installation Location Considerations 3-2 Making Electrical Connections ! 3-3 Piping Considerations 3-4 Making Process Water Connections All Models 3-5 Making Tank Piping Connections 3-6 Water Connection Sizing Considerations 3-7 Galvanic Corrosion Considerations 3-8 Water Treatment Considerations 3-9 Making Water-Cooled Condenser Connections 3-10 Installing the Remote Air-Cooled Condenser 3-11 Checking Motor Direction -Notes- 4 Sequence Of Operation 4-1 Staging 4-2 Alarms 4-3 Lead-Lag Compressors 4-4 Lead-Lag Pumps 4-5 Chilled Water Circuit 4-6 Refrigeration Circuit 4-7 Freezestat Control Page 4-8 High Pressure Cutout 4-9 Low Pressure Cutout 4-10 Flow Switch 4-11 Control Nozzle 4-12 Control Probe 4-13 Chilled Water Manifold 4-14 Optional Condenser Water Manifold Page 5 Startup Checklists 5-1 Introduction 5-2 Water-Cooled SCW Series Startup Checklist Page 5-3 Water-Cooled SCW Series Startup 5-4 Remote Air-Cooled SCW Series Startup Checklist Page 5-5 Remote Air-Cooled SCW Series Startup 5-6 Determining Flow Rate 5-7 Shutdown -Notes- Page Page Using the Standard 7 Operator Interface 7-1 Operator Interface Introduction Page 7-3 Getting Started on the SCW Series Standard Operator Interface 7-4 Viewing and Operating Chiller Compressors 7-5 Viewing and Operating Chiller Pumps 7-6 Viewing Active Alarms and Handling Alarm Conditions 7-7 Viewing and Setting System Temperatures Failure to do so can result in SERIOUS INJURY OR DEATH! Page Using the Advanced 8 Touchscreen Interface 8-1 Touchscreen Interface Introduction (MMI) Page 8-3 Getting Started on the SCW Series Advanced Touchscreen Interface 8-4 Viewing and Operating Chiller Compressors Viewing Compressor Status Page Operating the chiller compressors Setting Compressor Lead/Lag Times and Activating Compressor Lead/Lag Operation Viewing Compressor Run Times 8-5 Viewing and Operating Chiller Pumps Viewing Chiller Pump Status Page Operating Chiller Pumps Setting Pump Lead/Lag Times and Activating Pump Lead/Lag Operation Viewing Pump Run Times 8-6 Viewing Active Alarms and Handling Alarm Conditions Page Failure to do so can result in SERIOUS INJURY OR DEATH! 8-7 Viewing and Setting System Temperatures Setting System Temperatures Page 9 Routine Maintenance 9-1 Lubrication 9-2 Condenser Maintenance 9-3 Evaporator Maintenance 9-4 Pump Motor Seal 9-5 Makeup Valve 9-6 Recommended Pump Tank Spare Parts 9-7 Preventive Maintenance Service Page 10 Troubleshooting Page . Page Page 72 of 77 SCW Series Central Chilling Stations I Index SCW Series Central Chilling Stations Page 73 of 77 Page Page Page SCW Series Central Chilling Stations Page 77 of 77 Technical Assistance Parts Department 2900 S. 160th Street New Berlin, WI 53151 www.sterlco.com