York YCAV0569, Installation Operation & Maintenance

Page: 6 / 278

6
JOHNSON CONTROLS
FORM 201.21-NM2 (616)
TABLE OF CONTENTS (CONT’D)
Water System ........................................................37
Flow Switch ..........................................................37
Temperature Sensor(s) ..........................................37
Programmed Options ............................................38
Programmed Settings ............................................38
Date & Time .........................................................38
Start / Stop ............................................................38
Setpoint & Remote Offset ....................................38
FIRST TIME STARTUP ...........................................38
Interlocks ..............................................................38
Unit Switch ...........................................................38
Start-Up ................................................................38
Oil Pressure...........................................................38
Refrigerant Flow ...................................................39
Loading .................................................................39
Condensor & Fan Rotation ...................................39
Suction Super Heat ...............................................39
Sub-Cooling ..........................................................39
General Operation.................................................39
SECTION 6 - TECHNICAL DATA
WATER PRESSURE DROP CHARTS ....................40
GLYCOL CORRECTION FACTORS ......................41
WATER TEMP. AND FLOWS .................................42
PHYSICAL DATA ....................................................44
OPERATING LIMITATIONS AND
SOUND POWER ......................................................46
ELECTRICAL DATA ...............................................47
ELECTRICAL NOTES ............................................50
ELEMENTARY WIRING DIAGRAM ....................52
CONNECTION DIAGRAM ....................................56
LOCATION LABEL .................................................60
DIMENSIONS ..........................................................62
TECHNICAL DATA (CLEARANCES) ...................90
WEIGHT DISTRIBUTION &
ISOLATOR MOUNTING ...................................92
ISOLATOR MOUNTING POSITIONS ...................93
SEISMIC ISOLATOR INSTALLATION .................96
NEOPRENE ISOLATOR POSITION ......................98
1" DEFLECTION ISOLATOR INSTALLATION ....99
REFRIGERANT FLOW DIAGRAM .....................101
PROCESS & INSTRUMENTATION
DIAGRAM .............................................................102
COMPONENT LOCATIONS ................................103
EQUIPMENT START-UP CHECK SHEET...........120
Unit Checks (NO power) ....................................120
Panel Checks
(Power ON-both system switches OFF) .............122
Programmed Values ............................................123
Chilled Liquid Setpoint ......................................123
Date/Time, Daily Schedule, & Clock Jumper ....123
Initial Start-Up ....................................................124
Check Subcooling & Superheat ..........................124
Leak Checking ....................................................125
CHILLER ELECTRONIC COMPONENTS ..........126
Keypad ................................................................126
Display ................................................................127
Chiller Control Board .........................................128
Relay Output Boards ..........................................129
VSD (Variable Speed Drive) ..............................129
AC to DC Rectifier .............................................129
SCR Trigger Board .............................................130
DC Link Filter ....................................................130
1L Line Inductor .................................................131
AC to DC Inverter ..............................................131
Laminated Bus Structure ....................................131
VSD Logic Board ...............................................132
Control Panel to VSD Communications .............132
IBGT Gate Driver Boards ...................................133
Current Transformers ..........................................133
DV/DT Output Suppression Network ................134
Flash Tank Feed/Drain Valve Controller ............134
DC Bus Voltage Isolation Board .........................135
Chiller Circuit Breaker .......................................135
Autotransformer..................................................135
CHILLER CONFIGURATION JUMPERS ............136
Number of Compressors Configuration Jumpers 136
VSD LOGIC TO CHILLER MICROPROCESSOR
BOARD RS-485 COMMUNICATION
CONFIGURATION JUMPERS..............................136
MAX VSD FREQUENCY .....................................137
SECTION 7 - OPERATION
OPERATING CONTROLS ....................................138
BASIC OPERATING SEQUENCE ........................140
NUMBER OF COMPRESSORS TO START ........141
General................................................................141
Standard IPLV.....................................................141
Optional Optimized IPLV ...................................141
MINIMUM VSD COMPRESSOR
START/STOP FREQUENCY .............................142
Minimum VSD Start Frequency .........................142
Minimum VSD Run Frequency ..........................142
ACCELERATION/DECELERATION RATE
WHEN STARTING & STOPPING
COMPRESSORS ....................................................143
VSD Acceleration/ Deceleration Rates...............143
STANDARD IPLV CAPACITY CONTROL ........144
Fuzzy Logic Control ...........................................145
Hot Water Starts ..................................................146
Lag Compressor Operation in Load Limiting ....146
OPTIONAL IPLV CAPACITY CONTROL ...........147
Fuzzy Logic ........................................................148
Hot Water Starts ..................................................149