Table of Contents
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CONTROLLER .....................................................185
Valve Controller & Control Algorithm ..............185
ECONOMIZER CONTROL ................................188
CONDENSER FAN CONTROL .........................189
CONTROL OPERATION ....................................191
Local Current Limit Control ..............................193
Pulldown Current Limit Setpoint .......................193
REMOTE CURRENT LIMIT RESET ...............194
Sound Limit Controls .........................................196
VSD OPERATION & CONTROLS ....................198
VSD Cooling and Cooling Loop ........................200
VSD SAFETIES ....................................................204
IBGT Gate Driver (Hardware) Fault ..................207
Power Supply (Hardware) Fault .........................209
UNIT WARNINGS ...............................................212
UNIT SAFETIES ..................................................216
SYSTEM SAFETIES ............................................218
STATUS KEY ........................................................224
UNIT DATA KEY .................................................228
SYSTEM DATA KEY ...........................................230
VSD DATA KEY ...................................................234
OPERATING HOURS & START KEYS ............236
HISTORY KEY .....................................................237
Unit Data.............................................................239
VSD Data ............................................................239
System Data ........................................................240
Compressor Operating Hours & Starts ...............242
Chilled Liquid & Cooling Setpoints ..................242
Options................................................................242
Program Values ...................................................243
SETPOINTS KEY .................................................245
PROGRAM KEY ..................................................247
OPTIONS KEY .....................................................250
DATE/TIME & SCHEDULE KEY ......................254
Date/Time Key ....................................................254
Schedule Key ......................................................255
Unit Operating Schedule ....................................256
Sound Limit Schedule ........................................257
MANUAL OVERRIDE KEY ..............................258
PRINT KEY ...........................................................259
Operating Data Printout ......................................260
History Data Printout ..........................................261
SERVICE KEY ......................................................262
SYSTEM SWITCHES KEY ................................268
SERIAL NUMBER PROGRAMMING ..............269
JOHNSON CONTROLS
TABLE OF CONTENTS (CONT'D)
UNIT SETUP MODE ...........................................272
DEFAULT PROGRAMMABLE VALUES .........274
SERIAL PORT CONNECTIONS ........................275
ANALOG INPUT CONNECTIONS ...................276
DIGITAL INPUT CONNECTIONS ....................278
ANALOG OUTPUT CONNECTIONS ..............280
DIGITAL OUTPUT CONNECTIONS ...............282
SECTION 9 - MAINTENANCE
R-134A CONVERSION TABLES .......................291
MAINTENANCE ..................................................291
General Requirements ........................................291
MAINTENANCE REQUIREMENTS ................292
TROUBLESHOOTING GUIDE .........................294
EVACUATING A SYSTEM .................................296
WARRANTY POLICY .........................................297
New Equipment ..................................................297
Reconditioned or Replacement Materials...........297
All Warranties are VIOD if .................................297
CHILLED LIQUID & SUCTION TEMP
SENSOR INPUT VOLTAGE TABLE .................298
VOLTAGE TABLE ...............................................299
VOLTAGE TABLE ...............................................300
RESISTANCE TABLE .........................................301
& MAXIMUM VSD FREQUENCY ...................302
PRINTER WIRING ..............................................303
Okidata 184.........................................................304
Weigh-Tronix IMP Model 2600 .........................304
Seiko ...................................................................304
OPERATING LOG ...............................................305
Site and Chiller Info ...........................................305
Programmed Values ............................................305
Unit Operating Temperature, Pressures,
& Currents ..........................................................306
System Operating Conditions .............................307
Water System Conditions ...................................308
Condensor Conditions ........................................308
RECOMMENDED SPARE PARTS ....................309
FORM 201.21-NM1 (1223)
7
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