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Page Inspect the Heat Exchanger Tubes andFlowDevices .............................74 • COOLER AND FLOW DEVICES • CONDENSER AND FLOW DEVICES WaterLeaks.....................................74 WaterTreatment.................................75 InspecttheStartingEquipment..................75 CheckPressureTransducers....................75 Optional Pumpout System Maintenance . . . . . . . . . 75 • OPTIONAL PUMPOUT COMPRESSOR OIL CHARGE • OPTIONAL PUMPOUT SAFETY CONTROL SETTINGS OrderingReplacementChillerParts.............75 TROUBLESHOOTINGGUIDE ................ 76-117 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Checking the Display Messages . . . . . . . . . . . . . . . . . 76 Checking Temperature Sensors . . . . . . . . . . . . . . . . . 76 • RESISTANCE CHECK • VOLTAGE DROP • CHECK SENSOR ACCURACY • DUAL TEMPERATURE SENSORS Checking Pressure Transducers. . . . . . . . . . . . . . . . . 76 INTRODUCTION Prior to initial start-up of the 19XR unit, those involved in the start-up, operation, and maintenance should be thoroughly familiar with these instructions and other necessary job data. This book is outlined to familiarize those involved in the start- up, operation and maintenance of the unit with the control sys- tem before performing start-up procedures. Procedures in this manual are arranged in the sequence required for proper chiller start-up and operation. Page • TRANSDUCER REPLACEMENT Control Algorithms Checkout Procedure . . . . . . . . 77 ControlTest.....................................77 ControlModules.................................87 • RED LED (Labeled as STAT) • GREEN LED (Labeled as COM) NotesonModuleOperation .....................87 ChillerControlModule(CCM) ...................88 • INPUTS • OUTPUTS IntegratedStarterModule .......................88 • INPUTS • OUTPUTS Replacing Defective Processor Modules . . . . . . . . 88 • INSTALLATION Solid-StateStarters .............................88 • TESTING SILICON CONTROL RECTIFIERS IN BENSHAW, INC. SOLID-STATE STARTERS • SCR REMOVAL/INSTALLATION Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 INDEX...................................... 118,119 INITIAL START-UP CHECKLIST FOR 19XR, XRV HERMETIC CENTRIFUGAL LIQUID CHILLER . . . . . . . . . . . . . . . . . . . . CL-1 to CL-14 ABBREVIATIONS AND EXPLANATIONS Frequently used abbreviations in this manual include: CONTENTS (cont) CCM CCN CCW CVC CW ECDW ECW EMS HGBP I/O ISM LCD LCDW LCW LED OLTA PIC II RLA SCR SI TXV VFD — Chiller Control Module — Carrier Comfort Network — Counterclockwise — Chiller Visual Controller — Clockwise — Entering Condenser Water — Entering Chilled Water — Energy Management System — Hot Gas Bypass — Input/Output — Integrated Starter Module — Liquid Crystal Display — Leaving Condenser Water — Leaving Chilled Water — Light-Emitting Diode — Overload Trip Amps — Product Integrated Controls II — Rated Load Amps — Silicon Controlled Rectifier — International System of Units — Thermostatic Expansion Valve — Variable Frequency Drive This unit uses a microprocessor control system. Do not short or jumper between terminations on circuit boards or modules; control or board failure may result. Be aware of electrostatic discharge (static electricity) when handling or making contact with circuit boards or module connections. Always touch a chassis (grounded) part to dis- sipate body electrostatic charge before working inside con- trol center. Use extreme care when handling tools near boards and when connecting or disconnecting terminal plugs. Circuit boards can easily be damaged. Always hold boards by the edges and avoid touching components and connections. This equipment uses, and can radiate, radio frequency energy. If not installed and used in accordance with the instruction manual, it may cause interference to radio com- munications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Sub- part J of Part 15 of FCC Rules, which are designed to pro- vide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interfer- ence, in which case the user, at his own expense, will be required to take whatever measures may be required to cor- rect the interference. Always store and transport replacement or defective boards in anti-static shipping bag. Words printed in all capital letters or in italics may be viewed on the Chiller Visual Control (CVC) (e.g., LOCAL, CCN, ALARM, etc.). Words printed in both all capital letters and italics can also be viewed on the CVC and are parameters (e.g., CONTROL MODE, COMPRESSOR START RELAY, ICE BUILD OPTION, etc.) with associated values (e.g., modes, tempera- tures, percentages, pressures, on, off, etc.). Words printed in all capital letters and in a box represent softkeys on the CVC control panel (e.g., ENTER , EXIT , INCREASE , QUIT , etc.). Factory-installed additional components are referred to as options in this manual; factory-supplied but field-installed ad- ditional components are referred to as accessories. The chiller software part number of the 19XR unit is located on the back of the CVC. 4PDF Image | 19XR,XRV Hermetic Centrifugal Liquid Chillers 50/60 Hz With PIC II Controls and HFC-134a
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