JOHNSON CONTROLS
6
FORM 145.05-NOM2 (807)
SECTION 5 – SEQUENCE OF OPERATION ....................................................................................39
ON / OFF .....................................................................................................................................................39
SUPPLY FAN OPERATION .........................................................................................................................39
Constant Volume Fan Operation ........................................................................................................39
VAV Fan Operation ..............................................................................................................................40
Communicated VFD Speed Input .......................................................................................................40
FLEXSYS DEW POINT CONTROL ............................................................................................................40
Sequence of Operation .......................................................................................................................41
ECONOMIZER OPERATION ......................................................................................................................41
Sequence of Operation .......................................................................................................................41
Outdoor Air Economizer ...............................................................................................................41
COOLING OPERATION ..............................................................................................................................42
Sequence of Operation .......................................................................................................................42
Supply Air Temperature Control ..................................................................................................42
Return Air Temperature Control ..................................................................................................42
Dew Point Temperature Control (FlesSys Units) .......................................................................42
Coil Leaving Temperature Control (FlexSys Units) ...................................................................43
FLEXSYS BYPASS DAMPER CONTROL ..................................................................................................43
Sequence of Operation .......................................................................................................................43
HEATING OPERATION ...............................................................................................................................43
Sequence of Operation .......................................................................................................................44
Supply Air Temperature Control ..................................................................................................44
Return Air Temperature Control ..................................................................................................44
Staged Heat Operation .................................................................................................................44
Modulating Heat Operation ..........................................................................................................45
Tristate Modulated Heat ...............................................................................................................45
SECTION 6 – USER INTERFACE CONTROL CENTER ...................................................................47
KEYPAD ......................................................................................................................................................47
POWER UP BANNER SCREEN .................................................................................................................47
RUN STATUS SCREEN ..............................................................................................................................47
ALARM SCREEN ........................................................................................................................................48
FAULT SCREEN ..........................................................................................................................................48
I/O POINTS ..................................................................................................................................................49
Analog In ..............................................................................................................................................49
Digital In ...............................................................................................................................................49
Digital Out ............................................................................................................................................49
Analog Out ...........................................................................................................................................49
PID Loop Out ........................................................................................................................................49
Continued on next page
TABLE OF CONTENTS (CONT.)
Summary of Contents for YSCD
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