York YLAA0041 Installation Operation & Maintenance page 8

Air-cooled scroll chillers with brazed plate heat exchanger style b (60 hz) 4 to 12 fan 40 ton to 230 ton 140 kw to 800 kw
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Figure 1: Unit components, front view ....................................................................................................................21
Figure 2: Unit components, side view.....................................................................................................................22
Figure 3: Power panel components ........................................................................................................................23
Figure 4: Power Panel and control components.....................................................................................................24
Figure 5: Process and instrumentation diagram .....................................................................................................31
Figure 6: Rigging and lifting label ...........................................................................................................................33
Figure 7: Unit Rigging/Lifting .................................................................................................................................35
Figure 8: Lifting lugs ...............................................................................................................................................36
Figure 9: Chilled liquid system ...............................................................................................................................39
Figure 11: Control Wiring Inputs .............................................................................................................................42
Figure 12: Thermal Dispersion Flow Switch ...........................................................................................................44
Figure 13: Wiring of Thermal Dispersion Flow Switch ............................................................................................44
Figure 14: Control wiring outputs............................................................................................................................46
Figure 15: Elementary Wiring Diagram ..................................................................................................................78
Figure 16: Elementary Wiring Diagram ..................................................................................................................80
Figure 17: Fan Wiring, Standard Air Flow...............................................................................................................82
Figure 18: Fan Wiring, High Air Flow ......................................................................................................................84
Figure 19: Single and Dual Point Wiring Options ...................................................................................................86
Figure 20: Pump Wiring ..........................................................................................................................................88
Figure 21: EEV Controller Elementary Diagram .....................................................................................................90
Figure 22: Compressor Wiring................................................................................................................................92
Figure 23: Power Options Connection Diagram .....................................................................................................94
Figure 24: Power Panel ..........................................................................................................................................96
Figure 25: Micro Panel Connections ......................................................................................................................98
YLAA0081HE, YLAA0082HE ..............................................................................................................100
Figure 28: Four Fan Units Dimensions - YLAA0070ZJ ........................................................................................102
Figure 29: Five Fan Units Dimensions - YLAA0100SE .......................................................................................103
Figure 30: Five Fan Units Dimensions - YLAA0100ZJ ........................................................................................104
YLAA150SE, YLAA0155SE ...............................................................................................................106
Figure 33: Eight Fan Units Dimensions - YLAA0155ZJ .......................................................................................107
Figure 35: Twelve Fan Units Dimensions - YLAA200HE, YLAA0230HE ............................................................. 109
Figure 37: Unit Clearances - All Models .............................................................................................................. 111
Figure 38: EEV IB-G Interface Board ...................................................................................................................123
Figure 39: Drive Display .......................................................................................................................................126
Figure 40: Circuit breaker panel ...........................................................................................................................127
Figure 41: Tandem Set .........................................................................................................................................128
Figure 42: Trio Set ................................................................................................................................................128
Figure 43: Status Key Messages Quick Reference List .......................................................................................143
Figure 44: Operation data.....................................................................................................................................147
Figure 45: Setpoints Quick Reference List ...........................................................................................................159
Figure 46: Unit Keys Options Programming Quick Reference List.......................................................................169
Figure 47: Micro Panel Connections ....................................................................................................................171
Figure 48: Leaving Water Temperature Control Example.....................................................................................176
Figure 49: Setpoint Adjust ....................................................................................................................................177
Figure 50: Condenser Fan Locations ...................................................................................................................180
Figure 51: Microboard Layout...............................................................................................................................188
Figure 52: I/O Board Relay Contact Architecture .................................................................................................192
Figure 53: Printer to microboard electrical connections .......................................................................................196
8
List of figures
Form 150.72-ICOM6
Issue date: 12/19/2023
Johnson Controls

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