Johnson Controls York VERSECON YSWD Series - Page 8

JOHNSON CONTROLS
8
FORM 145.05-NOM1 (708)
SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS ......................................................................107
SECTION 8 – SERVICE ...................................................................................................................................113
ANALOG INPUTS .....................................................................................................................................113
Temperature Sensors ........................................................................................................................113
Duct Pressure Transducer ................................................................................................................113
Coil Pressure Drop (FlexSys Units Only) ........................................................................................114
Discharge Pressure Transducer ......................................................................................................114
Suction Pressure Transducer ...........................................................................................................114
Humidity Sensor (FlexSys Units Only) ............................................................................................114
FAULTS AND ALARMS ............................................................................................................................115
Compressor High Pressure (Fault / Alarm) .....................................................................................115
Compressor Low Pressure (Fault / Alarm) ......................................................................................115
Dirty Filter (Alarm) .............................................................................................................................116
Duct High Static (Fault / Alarm) ........................................................................................................116
External Safety ...................................................................................................................................116
Fan Failure (Alarm) ............................................................................................................................116
Freeze (Fault / Alarm) ........................................................................................................................117
CONTROL BOARD CONFIGURATION ....................................................................................................118
Main Control Board ...........................................................................................................................118
Auxiliary Control Board ....................................................................................................................119
WIRING DIAGRAMS .................................................................................................................................124
Constant Volume, Variable Air Volume ............................................................................................124
CV, VAV, FlexSys ................................................................................................................................125
CV, VAV, FlexSys ................................................................................................................................126
FlexSys ...............................................................................................................................................127
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