Orion System VCC-X Controller - Manual (Page 86)

APPENDIX B - VCC-X LCD SCREENS
VCC-X Controller Technical Guide 86
Alarm Screens
If there are no Alarms, the Alarm Screen will display “No Alarms.” If
there are alarms present, the screen will display, “Alarms.” You must
press
<ENTER> to scroll through the alarms. For alarm defi nitions
and troubleshooting, see pages 66-69.
Alarms
or No Alarms
Alarms
The screen will display the alarms as follows:
No Alarms
SAT SENSOR See Supply Air Temperature Sensor
Failure Alarm, page 67.
OAT SENSOR See Outdoor Air Temperature Sensor
Failure Alarm, page 67.
SPC SENSOR See Space Temperature Sensor Failure
Alarm, page 67.
MAIN EXP MISSING See Missing Expansion Module Alarm,
page 67.
CO2 SENSOR See CO
2
Sensor Failure Alarm, page 67.
SUCTION SENSOR See Low Suction Pressure Sensor Alarm,
page 67.
OAT CFM SENSOR See Airfl ow Alarms, page 67.
EX CFM SENSOR See Airfl ow Alarms, page 67.
SA CFM SENSOR See Airfl ow Alarms, page 67.
RA CFM SENSOR See Airfl ow Alarms, page 67.
REHEAT ALARM See Missing Expansion Module Alarm -
Reheat Board Missing, page 67.
MODGAS ALARM See Missing Expansion Module Alarm -
MODGAS Board Missing, page 67.
Alarm Screens
RLY EXP ALARM See Missing Expansion Module Alarm,
page 67.
COOLING FAILURE See Mechanical Cooling Failure Alarm,
page 67.
HEATING FAILURE See Mechanical Heating Failure Alarm,
page 67.
FAN POF FAILURE See Proof of Flow Interlock Alarm,
page 67.
DIRTY FILTER See Dirty Filter Alarm, page 67.
EMERG SHUTDOWN See Emergency Shutdown Alarm,
page 67.
HI SAT ALARM See High and Low Supply Temp Alarm,
page 68.
LO SAT ALARM See High and Low Supply Temp Alarm,
page 68.
CONTROL TEMP HI See High and Low Control Temp Failure,
page 68.
CONTROL TEMP LO See High and Low Control Temp Failure,
page 68.
HIGH HEAD See High Head Pressure Alarm, page 68.
PRESSURE
ECONO TITLE 24 See Title 24 Economizer Alarms,
page 68.
????? ALARMS This screen should never display. But if it
does, it means the controller doesn’t know
what the alarm is.