York YCAL0019 - Page 8

JOHNSON CONTROLS
8
FORM 150.67-NM1
ISSUE DATE: 4/28/2017
TABLE OF CONTENTS (CONT’D)
Equipment Start-Up Checklist ......................................................................................................................149
Checking The System Prior To Initial Start .......................................................................................... 149
Unit Checks ..................................................................................................................................149
Compressor Heaters ...........................................................................................................................149
Panel Checks ......................................................................................................................................149
Checking Superheat And Subcooling ........................................................................................................... 150
Leak Checking ..............................................................................................................................................151
Unit Operating Sequence .............................................................................................................................152
SECTION 7 – UNIT CONTROLS .......................................................................................................................... 153
Introduction ...................................................................................................................................................153
Ipu Ii And I/O Boards ....................................................................................................................................153
Unit Switch ..........................................................................................................................................154
Display .................................................................................................................................................154
Keypad ................................................................................................................................................154
Battery Back-up ................................................................................................................................... 154
Transformer ........................................................................................................................................ 154
Single System Select and Programming # of Compressors ...............................................................154
Status Key ....................................................................................................................................................155
Unit Status ........................................................................................................................................... 155
General Status Messages ...................................................................................................................155
Fault Safety Status Messages .............................................................................................................156
System Safeties ...........................................................................................................................157
Unit Safeties .................................................................................................................................158
Unit Warning ........................................................................................................................................158
Status Key Messages ..........................................................................................................................160
DISPLAY/PRINT KEYS ................................................................................................................................ 161
Oper Data Key .....................................................................................................................................161
Oper Data Quick Reference List .........................................................................................................164
Print Key .............................................................................................................................................. 164
Operating Data Printout .......................................................................................................................164
History Printout .................................................................................................................................... 165
History Displays ...................................................................................................................................166
Software Version .................................................................................................................................168
Entry Keys ....................................................................................................................................................169
Up and Down Arrow Keys ...................................................................................................................169
Enter/Adv Key .....................................................................................................................................169
Setpoints Keys .............................................................................................................................................170
Cooling Setpoints ................................................................................................................................170
Leaving Chilled Liquid Control .............................................................................................................170
Return Chilled Liquid Control ..............................................................................................................171
Remote Setpoint Control .....................................................................................................................171
SCHEDULE/ADVANCE DAY KEY................................................................................................................172
PROGRAM KEY ........................................................................................................................................... 173
System Trip Volts .................................................................................................................................175
Unit Trip Volts ......................................................................................................................................175
Unit Keys .....................................................................................................................................................177
Options Key ......................................................................................................................................... 177
Option 1 – Language ...................................................................................................................177
Option 2 – System Switches: (two system units only) .................................................................177
Option 3 – Chilled Liquid Cooling Type: ....................................................................................... 177
Option 4 – Ambient Control Type .................................................................................................178