York YCUL0020 Installation, Operation And Maintenance Manual page 9

Air-cooled scroll compressor condensing units style e

Table of Contents

Form 150.63-NM9

Issue date: 5/20/2021

List of tables

TABLE 1 - Fitting Equivalent Lengths .....................................................................................................................35

TABLE 2 - Refrigerant Piping Charges ...................................................................................................................35

TABLE 3 - Miscellaneous Liquid Line Pressure Drops ...........................................................................................36

TABLE 4 - Refrigerant Line Connections ...............................................................................................................36

TABLE 5 - Voltage Limitations ................................................................................................................................41

TABLE 6 - Physical Data (English) .........................................................................................................................42

TABLE 7 - Physical Data (SI) .................................................................................................................................43

TABLE 8 - Micro Panel Power Supply ....................................................................................................................44

TABLE 9 - Voltage Range ......................................................................................................................................44

TABLE 10 - Lug Ranges .........................................................................................................................................48

TABLE 11 - Status Key Messages Quick Reference List ..................................................................................... 116

TABLE 12 - Operation Data ..................................................................................................................................120

TABLE 13 - Cooling Setpoints Programmable Limits and Defaults ......................................................................131

TABLE 14 - Program Key Limits and Defaults .....................................................................................................131

TABLE 15 - Setpoints Quick Reference List .........................................................................................................132

TABLE 16 - Options Key Programming Quick Reference List .............................................................................138

TABLE 17 - Discharge Air Temperature Control for 5 and 6 Compressors (7 and 8 Steps) ................................. 140

TABLE 18 - Discharge Air Temperature Control for 4 Compressors (6 Steps) ..................................................... 140

TABLE 19 - YCUL0020 - YCUL0072 Condenser Fan Control Using Outdoor Ambient Temperature

and Discharge Pressure ..................................................................................................................143

TABLE 20 - YCUL0045 - YCUL0072 Condenser Fan Control Using Discharge Pressure Only ......................... 143

TABLE 21 - YCUL0020 - YCUL0072 Low Ambient Condenser Fan Control - Discharge Pressure Control ....... 144

TABLE 22 - YCUL0020 - YCUL0035 Low Ambient Condenser Fan Control - Discharge Pressure Control ....... 144

TABLE 23 - Compressor Operation - Load Limiting ............................................................................................145

TABLE 24 - I/O Digital Inputs ...............................................................................................................................149

TABLE 25 - I/O Digital Outputs .............................................................................................................................149

TABLE 26 - I/O Analog Inputs ..............................................................................................................................149

TABLE 27 - I/O Analog Outputs ............................................................................................................................149

TABLE 28 - Outdoor Air Sensor Temperature/Voltage/Correlation .......................................................................151

TABLE 29 - Discharge Air Temp. Sensor Temperature/Voltage/Resistance Correlation ...................................... 152

TABLE 30 - Pressure Transducers .......................................................................................................................153

TABLE 31 - Troubleshooting ................................................................................................................................156

TABLE 32 - Minimum, Maximum, and Default Values ..........................................................................................161

TABLE 33 - Values Required for Bas Communication .........................................................................................162

TABLE 34 - Real Time Error Numbers .................................................................................................................162

TABLE 35 - BACnet and Modbus Communications Data Map ............................................................................164

TABLE 36 - YorkTalk 2 Communications Data Map .............................................................................................169

JOHNSON CONTROLS

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