Specifications

JOHNSON CONTROLS
7
LIST OF FIGURES
FORM 160.81-NOM2
ISSUE DATE: 2/29/2012
LIST OF FIGURES
LIST OF TABLES
FIGURE 1 - Unit Rigging ......................................................................................................................................... 11
FIGURE 2 - Compressors – Evaporator, Condenser and Waterboxes Dimensions ...............................................14
FIGURE 3 - Standard Neoprene Vibration Isolator Pad Mounts (English) ..............................................................16
FIGURE 4 - Standard Neoprene Vibration Isolator Pad Mounts (Metric) ................................................................17
FIGURE 5 - Spring Isolators (Optional) (English) ....................................................................................................18
FIGURE 6 - Spring Isolators (Optional) (Metric) ......................................................................................................19
FIGURE 7 - Model YR – Front View of Assembled Unit .......................................................................................... 20
FIGURE 8 - Rigging Compressor Assembly............................................................................................................21
FIGURE 9 - Form 3 Field Assembly – Exploded View ...........................................................................................23
FIGURE 10 - Form 7 Shipment ...............................................................................................................................24
FIGURE 11 - Form 7 Field Assembly – Exploded View ..........................................................................................26
FIGURE 12 - Form 8 Field Assembly – Exploded View .........................................................................................28
FIGURE 13 - Saturation Curve ................................................................................................................................29
FIGURE 14 - Schematic of a Typical Piping Arrangement ......................................................................................33
FIGURE 15 - Cooling Tower Piping with 3 Port By-Pass Valve ............................................................................... 34
FIGURE 16 - Typical Refrigerant Vent Piping from Relief Valves ............................................................................35
FIGURE 17 - YR Motor Connections (Electro-Mechanical Starter) ......................................................................... 37
FIGURE 18 - YR Screw Chiller Component Layout Drawing – Design Level “C” ...................................................46
FIGURE 19 - YR Screw Chiller System Schematic – Design Level “C” .................................................................47
FIGURE 20 - Oil Filter System ................................................................................................................................49
FIGURE 21 - Oil Solenoid Valve Assembly .............................................................................................................51
FIGURE 22 - Variable Orice ..................................................................................................................................51
FIGURE 23 - Charging Oil .......................................................................................................................................59
FIGURE 24 - Oil Filters ............................................................................................................................................60
FIGURE 25 - Dual Oil Filter Isolation Valve .............................................................................................................61
FIGURE 26 - Diagram, Megohm Motor Windings ...................................................................................................65
FIGURE 27 - Evacuation of the Chiller ....................................................................................................................70
TABLE 1 - Construction Drawings (Product Drawings) Issued by the Johnson Controls Service Office ..................9
TABLE 2 - Service Clearance Requirements ..........................................................................................................10
TABLE 3 - Unit Weights ..........................................................................................................................................12
TABLE 4 - Overall Dimensions ...............................................................................................................................15
TABLE 5 - Form 3 Field Assembly Parts .................................................................................................................22
TABLE 6 - Form 7 Field Assembly Parts .................................................................................................................25
TABLE 7 - Form 8 Field Assembly Parts .................................................................................................................27
TABLE 8 - Oil Quantities .........................................................................................................................................27
TABLE 9 - System Pressures .................................................................................................................................30
TABLE 10 - Water Flow Rate Limits – GPM (L/S) ...................................................................................................32
TABLE 11 - Refrigerant Relief Characteristics ........................................................................................................36
TABLE 12 - Variable Orifice Pressure Differential Setpoints ...................................................................................51
TABLE 13 - Operation / Inspection / Maintenance Requirements for York YR Chillers ..........................................57
TABLE 14 - Maintenance Schedule ........................................................................................................................57
TABLE 15 - Compressor Oil Limits .........................................................................................................................58
TABLE 16 - York Oil Type for R-134a .....................................................................................................................58
TABLE 17 - Refrigerant Charge Level ....................................................................................................................62
TABLE 18 - Toubleshooting ....................................................................................................................................71
TABLE 19 - SI Metric Conversion ...........................................................................................................................75