Specifications

6 YORK INTERNATIONAL
1 Model YS Style D Rotary Screw Liquid Chiller .......................................................... 7
2 Rigging ......................................................................................................................... 9
3 Standard Neoprene Vibration Isolator Pad Mounts ................................................... 15
4 Overall Dimensions - English, S0 thru S3 Compressor .............................................. 16
5 Overall Dimensions - English, S4 and S5 Compressor............................................... 17
6 Overall Dimensions - Std. Intl., S0 thru S3 Compressor ............................................ 18
7 Overall Dimensions - Std. Intl., S4 and S5 Compressor ............................................ 19
8 Spring Isolators (Optional) .......................................................................................... 20
9 Schematic of a Typical Piping Arrangement for Cooling Units ................................. 22
10 Typical Refrigerant Vent Piping from Relief Valves .................................................. 23
11 Typical Refrigerant Vent Piping from Rupture Disk .................................................. 24
12 YS Motor Connections (Electro-Mechanical Starter Application) ............................ 27
13 Installation Check List and Request for Authorized Start-Up
Engineer
....................
28
14 YS Screw Chiller Component Layout Drawing – Design Level “E”
........................
34
15 YS Screw Chiller Oil Piping Schematic – Design Level “E”
....................................
35
16 YS Screw Chiller Optional Dual Oil Filter Piping Schematic – Design Level “E”
....
36
17 Oil Filter Location
.......................................................................................................
37
18 Oil & Filter Pressure Transducers
.............................................................................
38
19 Eductor Block
.............................................................................................................
38
20 YS Screw Chiller Oil Separator Schematic – Design Level “E”
..............................
39
21 Filter Driers and Oil Eductor
......................................................................................
41
22 YS Screw Chiller Oil Eductor Schematic – Design Level “E”
.................................
42
23 YS Screw Chiller Refrigerant Schematic – Design Level “E”
.................................
43
24 4-Way Directional Valve Sub-plate
............................................................................
44
25 Figure To Come
..........................................................................................................
44
26 YS Screw Chiller Capacity Control Piping Schematic – Design Level “E”
..............
45
27 Double Purpose Hydraulic Cylinder
...........................................................................
45
28 Oil Heater and Sight Glasses
......................................................................................
47
29 Oil Cooler Valve
.........................................................................................................
50
30 Diagram, Megging Motor Windings
............................................................................
52
31 Motor Stator Temperature & Insulation Resistances
.................................................
53
32 Transducer Measurement Points
................................................................................
54
33 YS Chiller Oil Recovery Guide
..................................................................................
57
1 Clearances .................................................................................................................... 8
2 Weights - English, R-22 and R-134a Units, 50 and 60 Hz ......................................... 10
3 Weights - SI, R-22 and R-134a Units, 50 and 60 Hz ................................................. 12
4 Refrigerant Relief Characteristics .............................................................................. 25
5 Variable Orifice Pressure Differential Setpoints ........................................................ 41
6 YORK Oil Types........................................................................................................ 46
7 Compressor Oil Limits ................................................................................................ 46
8 Maintenance Requirements for YORK YS Chillers.................................................. 48
9 Refrigerant Charge Level........................................................................................... 49
LIST OF TABLES
LIST OF FIGURES