York YCAL0043 - Page 7

JOHNSON CONTROLS
7
FORM 150.67-NM2
ISSUE DATE: 01/31/2019
TABLE OF CONTENTS (CONT’D)
Evaporator Heater Control ...........................................................................................................................161
Pumpdown Control ....................................................................................................................................... 161
Standard Condenser Fan Control ................................................................................................................161
Standard Condenser Fan Control – YCAL0019 – YCAL0033 ......................................................................163
Standard Condenser Fan Control – YCAL0043 – YCAL0066 ......................................................................164
YCAL0019 – 0033 Low Ambient Fan Control Option ................................................................................... 165
YCAL0043 – 0066 Low Ambient Fan Control Option ................................................................................... 171
Load Limiting ................................................................................................................................................175
Compressor Run Status ...............................................................................................................................175
Alarm Status ................................................................................................................................................. 175
BAS/EMS Temperature Reset Using a Voltage or Current Signal................................................................175
SECTION 9 – SERVICE AND TROUBLESHOOTING ..........................................................................................177
Clearing History Buffers................................................................................................................................177
Service Mode ...............................................................................................................................................177
Service Mode – Outputs ............................................................................................................................... 177
Service Mode – Chiller Configuration ........................................................................................................... 178
Service Mode – Analog and Digital Inputs ....................................................................................................178
Control Inputs/Outputs .................................................................................................................................179
Checking Inputs and Outputs .......................................................................................................................181
Optional Printer Installation ..........................................................................................................................185
Troubleshooting ............................................................................................................................................186
SECTION 10 – MAINTENANCE ........................................................................................................................... 189
Important ......................................................................................................................................................189
Compressors ................................................................................................................................................189
Condenser Fan Motors .................................................................................................................................189
Condenser Coils ........................................................................................................................................... 189
Operating Parameters ..................................................................................................................................189
On-Board Battery Back-Up ...........................................................................................................................189
Plate and Frame Heat Exchanger (Evaporator) Heater ...............................................................................189
Overall Unit Inspection .................................................................................................................................189
ISN Control ................................................................................................................................................... 190
Bacnet and Modbus Data Communication ................................................................................................... 193
Temperature Conversion Chart ....................................................................................................................197
R410-A Pressure Temperature Chart ...........................................................................................................199