York YVAA Installation Operation & Maintenance page 9

Form 201.47-ICOM1
Issue date: 17/11/2022
Figure 1 - YVAA air-cooled screw liquid chiller with variable speed drive ............................................................... 15
Figure 2 - Chiller control system .............................................................................................................................16
Figure 3 - View of YORK control center user interface ...........................................................................................18
Figure 4 - Lifting lug ................................................................................................................................................24
Figure 5 - Lifting using lugs.....................................................................................................................................24
Figure 5 - Power panel, 1 to 4 ................................................................................................................................25
Figure 6 - Power panel, 1 to 5 ................................................................................................................................26
Figure 7 - Power panel, 1 to 6 ................................................................................................................................27
Figure 8 - Power panel, 1 to 8 ................................................................................................................................28
Figure 9 - Acceptable minimum clearances around and between units ................................................................. 30
Figure 10 - Pipework arrangement .........................................................................................................................33
Figure 11 - Leaving water temperature out of range suggested layout .................................................................. 33
Figure 12 - Suggested layout for applications with a flow rate less than the evaporator minimum
allowable flow rate ................................................................................................................................34
Figure 13 - Suggested layout for applications with a flow rate greater than the evaporator maximum
allowable flow rate ................................................................................................................................34
Figure 14 - Grooved nozzle ....................................................................................................................................34
Figure 15 - Flange for GB vessels ..........................................................................................................................36
Figure 16 - Flange attachment................................................................................................................................36
Figure 17 - Single point power wiring .....................................................................................................................39
Figure 18 - Dual point power wiring ........................................................................................................................40
Figure 19 - Customer control connections .............................................................................................................41
Figure 20 - Thermal dispersion flow switch connections ........................................................................................42
Figure 21 - Reserved customer wiring entry ..........................................................................................................43
Figure 22 - Water box heater wiring box .................................................................................................................43
Figure 23 - Standard two-pass, right side inlet/outlet evaporator connections ....................................................... 70
Figure 24 - Optional two-pass left side inlet/outlet connections..............................................................................72
Figure 25 - Standard two-pass left side inlet/outlet connections ............................................................................74
Figure 26 - Optional three-pass inlet/outlet connections ........................................................................................75
Figure 27 - YVAA dimensions .................................................................................................................................77
Figure 28 - Isolator selection and mounting locations ............................................................................................78
Figure 29 - Isolator selection and mounting locations ............................................................................................79
Figure 30 - Isolator selection and mounting locations ............................................................................................80
Figure 31 - Isolator selection and mounting locations ............................................................................................81
Figure 32 - Isolator selection and mounting locations ............................................................................................82
Figure 33 - Isolator selection and mounting locations ............................................................................................83
Figure 34 - Isolator selection and mounting locations ............................................................................................84
Figure 35 - Isolator selection and mounting locations ............................................................................................85
Figure 36 - Isolator selection and mounting locations ............................................................................................86
Figure 37 - Isolator selection and mounting locations ............................................................................................87
Figure 38 - Elastomeric isolator ..............................................................................................................................88
Figure 39 - Elastomeric isolator specifications .......................................................................................................89
Figure 40 - One inch deflection isolator ..................................................................................................................90
Figure 41 - One inch deflection isolator specifications ...........................................................................................91
Figure 42 - Two inch deflection isolator ..................................................................................................................92
Figure 43 - Two inch deflection isolator specifications ............................................................................................93
Figure 44 - LED indicator buttons ...........................................................................................................................95
Figure 45 - Flow switch set .....................................................................................................................................96
Figure 46 - Flow below the representation range ...................................................................................................96
Figure 47 - Flow exceeds the representation range ...............................................................................................96
Figure 48 - Keyboard and display ...........................................................................................................................99
Figure 49 - New 331-03478-xxx microboard ........................................................................................................104
Figure 50 - Micropanel .......................................................................................................................................... 119
Figure 51 - Unit data key ......................................................................................................................................122
Figure 52 - System data keys 1 through 4 ............................................................................................................124
JOHNSON CONTROLS
List of figures
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