York Millennium YCAS Series Installation Operation & Maintenance page 5

4. PRINT KEYS ............................................................................................................................... 153
4.1 General ....................................................................................................................153
4.2 Oper Data Key ........................................................................................................153
4.3 Operating Data - Local Display Messages ............................................................153
4.4 Operating Data - Remote Printout .........................................................................154
4.5 History Key ............................................................................................................156
4.6 Fault History Data - Local Display Messages ......................................................156
4.7 Fault History Data - Remote Printout ....................................................................159
5. ENTRY KEYS ............................................................................................................................... 160
5.1 General ....................................................................................................................160
5.2 Numerical Keypad ..................................................................................................160
5.3 Enter Key ...............................................................................................................160
5.4 Cancel Key .............................................................................................................160
!" # !" # !" # !" # !" # Keys ..........................................................................................................160
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6. SETPOINTS KEYS & CHILLED LIQUID CONTROL .......................................................................... 161
6.1 General ....................................................................................................................161
6.2 Chilled Liquid Temperature Control .......................................................................161
6.3 Local Cooling Setpoints Key .................................................................................164
6.4 Remote Cooling Setpoints Key ..............................................................................164
7. CLOCK KEYS ............................................................................................................................... 165
7.1 General ....................................................................................................................165
7.2 Set Time Key ..........................................................................................................165
7.3 Set Schedule / Holiday Key ...................................................................................166
7.4 Manual Override Key .............................................................................................167
8. PROGRAM KEY ............................................................................................................................... 168
8.1 General ....................................................................................................................168
8.2 Program Key - User Programmable Values ............................................................168
8.3 Programming "Default" Values ..............................................................................172
8.4 3 Compressor Condenser Fan Control ...................................................................173
8.5 4 Compressor Condenser Fan Control ...................................................................175
SECTION 9 MAINTENANCE ............................................................................................................. 178
General Requirements ........................................................................................................................... 178
Daily Maintenance ...................................................................................................................................178
Scheduled Maintenance ..........................................................................................................................178
Chiller/Compressor Operating Log ..................................................................................................... 178
Compressor Unit Operation .....................................................................................................................179
Maintenance Requirements ................................................................................................................... 180
General Periodic Maintenance Checks - Standard Units .................................................................... 181
SECTION 10 SPARE PARTS ............................................................................................................... 182
Recommended Spares ..............................................................................................................................182
Recommended Compressor Oils ..............................................................................................................182
Associated Drawings ..............................................................................................................................182
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SECTION TROUBLESHOOTING .................................................................................................. 183
Competent Persons Troubleshooting Guide .......................................................................................... 183
Sensor Calibration Charts .................................................................................................................... 185
Limited Warranty Applied Systems ...................................................................................................... 186
Temperature Conversion Chart ............................................................................................................. 187
YORK INTERNATIONAL
TABLE OF CONTENTS (CONT'D)
FORM 201.18-NM4
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