FORM 150.67-NM2 (209)
7
JOHNSON CONTROLS
SECTION 7 – UNIT CONTROLS .....................................................................................................................127
INTRODUCTION .......................................................................................................................................127
IPU II and I/O Boards .........................................................................................................................127
Unit Switch .........................................................................................................................................128
Display ................................................................................................................................................128
Keypad ................................................................................................................................................128
Battery Back-up .................................................................................................................................128
Transformer .......................................................................................................................................128
Single System Select and Programming # of Compressors ........................................................128
“STATUS” KEY .........................................................................................................................................129
Unit Status ..........................................................................................................................................129
General Status Messages .................................................................................................................129
Fault Safety Status Messages ..........................................................................................................131
Unit Warning ......................................................................................................................................133
Status Key Messages ........................................................................................................................134
Status Key Messages Quick Reference List ...................................................................................134
DISPLAY/PRINT KEYS .............................................................................................................................135
Oper Data Key ....................................................................................................................................135
Oper Data Quick Reference List .......................................................................................................138
Print Key .............................................................................................................................................139
Operating Data Printout ....................................................................................................................139
History Printout .................................................................................................................................140
History Displays ................................................................................................................................140
Software Version ...............................................................................................................................142
“ENTRY” KEYS .........................................................................................................................................143
Up and Down Arrow Keys .................................................................................................................143
Enter/adv Key .....................................................................................................................................143
“SETPOINTS” KEYS ................................................................................................................................144
Cooling Setpoints ..............................................................................................................................144
Leaving Chilled Liquid Control ........................................................................................................144
Return Chilled Liquid Control ..........................................................................................................145
Remote Setpoint Control ..................................................................................................................145
SCHEDULE/ADVANCE DAY KEY ............................................................................................................145
PROGRAM KEY ........................................................................................................................................147
System Trip Volts ...............................................................................................................................148
Unit Trip Volts ....................................................................................................................................149
PROGRAM KEY LIMITS AND DEFAULT .................................................................................................149
SETPOINTS QUICK REFERENCE LIST ..................................................................................................150
“UNIT” KEYS ...........................................................................................................................................151
Options Key .......................................................................................................................................151
CLOCK ......................................................................................................................................................155
UNIT KEYS OPTIONS PROGRAMMING QUICK REFERENCE LIST .....................................................156
TABLE OF CONTENTS (CONT’D)
Summary of Contents for YCAL0019
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