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JOHNSON CONTROLS

FORM 150.73-NM1

ISSUE DATE: 09/04/2020

LIST OF FIGURES

FIGURE 1 - Compressors .......................................................................................................................................15

FIGURE 2 - Unit Components Front .......................................................................................................................20

FIGURE 3 - Power Panel Components ..................................................................................................................21

FIGURE 4 - Power Panel / Control Components .................................................................................................... 22

FIGURE 5 - Refrigerant Flow Diagram ................................................................................................................... 27

FIGURE 6 - Process and Instrumentation Diagram ................................................................................................ 28

FIGURE 7 - Unit Rigging ........................................................................................................................................29

FIGURE 8 - Single-Point Supply Connection – Terminal Block, Non-Fused Disconnect Switch

Or Circuit Breaker ...............................................................................................................................40

FIGURE 9 - Discharge Air Sensor Field Wiring ......................................................................................................40

FIGURE 10 - Control Wiring ...................................................................................................................................41

FIGURE 11 - Elementary Wiring Diagram ..............................................................................................................60

FIGURE 12 - Power Options Connection Diagram .................................................................................................70

FIGURE 13 - Single Point and Dual Point Wiring ...................................................................................................74

FIGURE 14 - Wiring ................................................................................................................................................ 76

FIGURE 15 - Micro Panel Connections ..................................................................................................................78

FIGURE 16 - Elementary Diagram .........................................................................................................................80

FIGURE 17 - Unit Clearances – All Models ............................................................................................................ 87

FIGURE 18 - Sample Printout Supplied in the Isolator Package and in the Chiller Panel Literature Packet. ........88

FIGURE 19 - Status Key Messages Quick Reference List ................................................................................... 107

FIGURE 20 - Operation Data ................................................................................................................................ 111

FIGURE 21 - Setpoints Quick Reference List .......................................................................................................123

FIGURE 22 - Unit Keys Programming Quick Reference List ................................................................................129

FIGURE 23 - Discharge Air Temperature Control ................................................................................................. 132

FIGURE 24 - Suction Pressure Control ................................................................................................................133

FIGURE 25 - YLUA0078 – YLUA0095 Fan Location (Typical) ............................................................................. 135

FIGURE 26 - YLUA0098 – YLUA0130 Fan Location ...........................................................................................137

FIGURE 27 - YLUA0148 – YLUA0158 Fan Location ...........................................................................................138

FIGURE 28 - Microboard Layout ..........................................................................................................................144

FIGURE 29 - I/O Board Relay Contact Architecture ............................................................................................. 148

FIGURE 30 - Printer to Microboard Electrical Connections .................................................................................. 149