York eco YCAS Series Manual page 7

7. CLOCK KEYS ............................................................................................................................... 208
7.1 General ....................................................................................................................208
7.2 Set Time Key .......................................................................................................... 208
7.3 Set Schedule / Holiday Key ...................................................................................209
7.4 Manual Override Key .............................................................................................210
8. PROGRAM KEY ............................................................................................................................... 211
8.1 General ....................................................................................................................211
8.2 Program Key – User Programmable Values ............................................................ 211
8.3 Programming “Default” Values .............................................................................. 215
8.4 3 Compressor Condenser Fan Control ...................................................................216
8.5 4 Compressor Condenser Fan Control ...................................................................219
SECTION 9 MAINTENANCE ............................................................................................................. 222
General Requirements ........................................................................................................................... 222
Daily Maintenance ...................................................................................................................................222
Scheduled Maintenance ..........................................................................................................................222
Chiller/Compressor Operating Log ..................................................................................................... 222
Compressor Unit Operation .................................................................................................................. 223
Maintenance Requirements ................................................................................................................... 224
General Periodic Maintenance Checks – Standard Units .................................................................... 225
SECTION 10 SPARE PARTS ............................................................................................................... 226
Recommended Spares ..............................................................................................................................226
Recommended Compressor Oils .............................................................................................................. 226
Associated Drawings .............................................................................................................................. 226
SECTION 11 TROUBLESHOOTING .................................................................................................. 227
Competent Persons Troubleshooting Guide .......................................................................................... 227
Sensor Calibration Charts .................................................................................................................... 229
Limited Warranty Applied Systems ....................................................................................................... 230
Temperature Conversion Chart ............................................................................................................. 231
Fig. 1 – Component Locations ................................................................................................................................ 14
Fig. 2 – Screw Compressor ...................................................................................................................................... 15
Fig. 3 – Unit Rigging ................................................................................................................................................ 30
Fig. 4 – Lifting Lugs ................................................................................................................................................. 30
Fig. 5 – Pipework Arrangement ............................................................................................................................... 33
Fig. 6 – Victaulic Groove .......................................................................................................................................... 34
Fig. 7 – Flange Attachments .................................................................................................................................... 34
Fig. 8 – Power Panel Section ................................................................................................................................... 37
Fig. 9 – Options Panel Layout (Typical) ................................................................................................................ 38
Fig. 10 – Logic Section Layout .................................................................................................................................. 39
Fig. 11 – Logic Section Layout with Control Panel Layout ..................................................................................... 40
Fig. 12 – Customer Connections ............................................................................................................................... 41
Fig. 13 – Customer Connections ............................................................................................................................... 42
Fig. 14 – Flow Rate and Pressure Drop (English Units, 60 Hz) .............................................................................. 47
Fig. 15 – Flow Rate and Pressure Drop (SI Units, 60 Hz) ....................................................................................... 47
Fig. 16 – Flow Rate and Pressure Drop (SI Units, 50 Hz) ....................................................................................... 48
Fig. 17 – Glycol Correction Factors .......................................................................................................................... 49
Fig. 18 – Multiple Point Power Supply Connection ................................................................................................ 63
Fig. 19 – Multiple Point Power Supply Connection with Individual System Circuit Breakers ............................. 63
Fig. 20 – Optional Single-Point Power Supply Connection with Individual System Circuit Breakers .................. 64
LIST OF FIGURES
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