York YVAA - Page 7

JOHNSON CONTROLS
7
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE OF CONTENTS (CONT'D)
Two Inch Deflection Isolator Installation And Adjustment ...............................................................................94
Two Inch Deflection, Restrained Spring Isolator Specifications .....................................................................95
Y2RSI-xx-xxx .........................................................................................................................................95
SECTION 6 - COMMISSIONING ............................................................................................................................97
Preparation ..................................................................................................................................................... 97
Inspection .............................................................................................................................................97
Refrigerant Charge ................................................................................................................................ 97
Correct System Refrigerant Charge ......................................................................................................97
Service and Oil Line Valves ...................................................................................................................97
Compressor Oil .....................................................................................................................................97
Fans .....................................................................................................................................................98
Isolation / Protection .............................................................................................................................. 98
Control Panel .........................................................................................................................................98
Power Connections ...............................................................................................................................98
Grounding ..............................................................................................................................................98
Water System ........................................................................................................................................98
Flow Switch ...........................................................................................................................................98
Temperature Sensor(s) ..........................................................................................................................98
Programmed Options ............................................................................................................................98
Programmed Settings ...........................................................................................................................98
Date and Time .......................................................................................................................................98
Start/Stop Schedule ..............................................................................................................................98
Setpoint and Remote Offset ..................................................................................................................99
First Time Start Up .........................................................................................................................................99
Interlocks ...............................................................................................................................................99
Unit Switch ............................................................................................................................................99
Startup ................................................................................................................................................... 99
Oil Pressure ...........................................................................................................................................99
Loading ..................................................................................................................................................99
Condenser and Fan Rotation ................................................................................................................99
System Charge ......................................................................................................................................99
General Operation ....................................................................................................................................... 100
Operation in Sub-freezing Conditions .................................................................................................100
Unit Maintenance and Shutdown in Sub-freezing Conditions ............................................................100
SECTION 7 - OPERATION ...................................................................................................................................101
Operating Controls .......................................................................................................................................101
Unit Switch ..........................................................................................................................................101
Keypad ................................................................................................................................................101
Keypad Data Entry Mode ....................................................................................................................102
Display .................................................................................................................................................102
Anti-recycle Timer ................................................................................................................................102
Evaporator Pump Control .................................................................................................................... 102
Evaporator Heater Control ..................................................................................................................103
Alarms .................................................................................................................................................103
Chiller Run Contact .............................................................................................................................103
Flow Switch Control .............................................................................................................................103
Remote Run / Stop .............................................................................................................................. 103