YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls

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8 LIST OF TABLES FORM 201.28-NM1.1 ISSUE DATE: 8/29/2012 TABLE 1 - Minimum Evaporator Tube Removal Clearance ....................................................................................24 TABLE 2 - Evaporator Flange Dimensions For GB Units .......................................................................................28 TABLE 3 - Electrical Lug Data ................................................................................................................................34 TABLE 4 - Physical Data .........................................................................................................................................50 TABLE 5 - Unit Rigging ...........................................................................................................................................56 TABLE 6 - Isolator Selection and Mounting Locations ............................................................................................62 TABLE 7 - Low Differential Oil Pressure Cutout .....................................................................................................91 TABLE 8 - Start Inhibit Sensor Thresholds .............................................................................................................92 TABLE 9 - Sensor Min/Max Outputs .....................................................................................................................102 TABLE 10 - Setpoint Limits ................................................................................................................................... 113 TABLE 11 - Programmable Operating Parameters ............................................................................................... 116 TABLE 12 - Printout Types ....................................................................................................................................124 TABLE 13 - Troubleshooting Guide ......................................................................................................................133 TABLE 14 - Temperature Input Voltage Sensor (Measured Signal To Shield At The Sensor) ......................................................................................136 TABLE 15 - Outside Air Temperature Sensor Input Voltage (Measured Signal To Shield At The Sensor) ......................................................................................137 TABLE 16 - Pressure Transducer Output Voltage (Measured Signal To Return At The Transducer) ..............................................................................138 TABLE 17 - Motor Temperature Sensor Resistance (Check At The Motor) ........................................................................................................................139 TABLE 18 - SI Metric Conversion .........................................................................................................................143 JOHNSON CONTROLS
FORM 201.28-NM1.1 ISSUE DATE: 8/29/2012 INTRODUCTION SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY YORK YVAA chillers are manufactured to the highest design and construction standards to ensure high performance, reliability and adaptability to all types of air conditioning installations. The unit is intended for cooling water or glycol solutions and is not suitable for purposes other than those specified in this manual. This manual contains all the information required for correct installation and commissioning of the unit, together with operating and maintenance instructions. The manual should be read thoroughly before attempting to operate or service the unit. All procedures detailed in the manual, including installation, commissioning and maintenance tasks must only be performed by suitably trained and qualified personnel. The manufacturer will not be liable for any injury or damage caused by incorrect installation, commissioning, operation or maintenance resulting from a failure to follow the procedures and instructions detailed in the manual. WARRANTY Johnson Controls warrants YVAA chillers in accordance with the "Limited Warranty Engineered Systems Equipment" procedure, Form 50.05-NM2. Johnson Controls warrants all equipment and materials against defects in workmanship and materials for a period of eighteen months from date of shipment or 12 months from date of startup, whichever comes first, unless labor or extended warranty has been purchased as part of the contract. The warranty is limited to parts only replacement and shipping of any faulty part, or sub-assembly, which has failed due to poor quality or manufacturing errors. All claims must be supported by evidence that the failure has occurred within the warranty period, and that the unit has been operated within the designed parameters specified. All warranty claims must specify the unit model, serial number, order number and run hours/starts. Model and serial number information is printed on the unit identification plate. The unit warranty will be void if any modification to the unit is carried out without prior written approval from Johnson Controls. For warranty purposes, the following conditions must be satisfied: • The initial start of the unit must be carried out by trained personnel from an authorized Johnson Controls Service Center. Refer to SECTION 6 - COMMISSIONING on Page 81 for more information. • Only genuine YORK approved spare parts, oils, coolants, and refrigerants must be used. • All the scheduled maintenance operations detailed in this manual must be performed at the specified times by suitably trained and qualified personnel. See SECTION 9 - MAINTENANCE on Page 129 for more information. • Failure to satisfy any of these conditions will automatically void the warranty. Refer to Form 50.05-NM2 for complete details. QUALITY ASSURANCE AND SAFETY YVAA chillers are designed within EN ISO 9001 and built within an EN ISO 9002 accredited manufacturing organization. Units conform with the following European Directives: • Machinery Directive (2006/42/EC) • EMC Directive (2004/108/EC) • Pressure Equipment Directive (97/23/EC) • Low Voltage Directive (2006/95/EC) • Safety Code for Mechanical Refrigeration (EN378-2(2008)) CE/PED marked units conform to the following standards: • Machinery Directive (2006/42/EC). • EMC Directive (2004/108/EC). • Pressure Equipment Directive (97/23/EC). • Low Voltage Directive (2006/95/EC). • Safety Code for Mechanical Refrigeration (EN378-2(2008)). JOHNSON CONTROLS 9 1
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YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls

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