4
YORK INTERNATIONAL
FORM 201.18-NM1 (102)
TABLE OF CONTENTS (CONT’D)
SECTION
8
MICRO PANEL CONTENTS ..................................................................................... 103
Chiller Control Panel Programming and Data Access Keys ........................................................ 103
Display and Status Information Keys ............................................................................................ 103
ON / OFF Rocker Switch .................................................................................................................. 103
Program & Setup Keys ..................................................................................................................... 103
1. INTRODUCTION & PHYSICAL DESCRIPTION ........................................................................ 104
1.1
General .................................................................................................................. 104
1.2
Keypad & Display ................................................................................................. 104
1.3
Unit (Chiller) On / OFF Switch ............................................................................ 105
1.4
Microprocessor Board .......................................................................................... 105
1.5
Ancillary Circuit Boards ....................................................................................... 105
1.6
Circuit Breakers .................................................................................................... 106
1.7
Current Transformers (C.T.) ................................................................................. 106
1.8
Transformers ......................................................................................................... 106
1.9
Motor Protection Modules .................................................................................... 107
1.10
EMS / BAS Controls ............................................................................................. 109
1.11
Microprocessor Board Layout .............................................................................. 111
1.12
Logic Section Layout ............................................................................................ 112
1.13
Anti-Recycle Timer ............................................................................................... 113
1.14
Anti-Coincidence Timer ....................................................................................... 113
1.15
Evaporator Pump Control ..................................................................................... 113
1.16
Compressor Heater Control .................................................................................. 113
1.17
Evaporator Heater Control .................................................................................... 113
1.18
Pumpdown (LLSV) Control ................................................................................. 113
1.19
Alarms ................................................................................................................... 113
1.20
Run Status (Chiller) .............................................................................................. 114
1.21
Lead / Lag Compressor Selection ......................................................................... 114
2. STATUS KEY: GENERAL STATUS MESSAGES AND FAULT WARNINGS ........................... 115
2.1
General .................................................................................................................. 115
2.2
General Status Messages ...................................................................................... 115
2.3
Unit Warnings ....................................................................................................... 116
2.4
Anticipation Control Status Messages .................................................................. 117
2.5
Unit Fault Status Messages ................................................................................... 118
2.6
System Fault (Safety) Status Messages ................................................................ 119
2.7
Printout on Fault Shutdown .................................................................................. 122
3. DISPLAY KEYS & OPTION SWITCHES ...................................................................................... 123
3.1
General .................................................................................................................. 123
3.2
Chilled Liquid Temps Key .................................................................................... 123
3.3
System # Data Keys .............................................................................................. 124
3.4
Ambient Temp Key ............................................................................................... 124
3.5
Motor Current Key ................................................................................................ 125
3.6
Operating HRS / Start Counter Key ..................................................................... 125
3.7
Options Key & Dip Switch Settings ..................................................................... 125
3.8
Function Key ......................................................................................................... 127
4. PRINT KEYS ....................................................................................................................................... 128
4.1
General .................................................................................................................. 128
4.2
Oper Data Key ...................................................................................................... 128
4.3
Operating Data – Local Display Messages ........................................................... 128
4.4
Operating Data – Remote Printout ....................................................................... 129
4.5
History Key ........................................................................................................... 131
4.6
Fault History Data – Local Display Messages ..................................................... 131
4.7
Fault History Data – Remote Printout .................................................................. 134
Summary of Contents for MILLENNIUM YCAS0230
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