Carrier RTU OPEN 11-808-427-01 - Manual (Page 73)

RTU Open 67
Alarm Configuration
Navigation: i-Vu / Field Assistant:
BACview: Properties > Equipment > Configuration > Alarm Configuration
HOME > CONFIG > ALARMS
Point Name/Description Default/Range
Space Temperature Alarm
Occupied Alarm Hysteresis – This value is added to the occupied high effective
setpoint and subtracted from the occupied low effective setpoint to establish the
occupied high and low limits that the space temperature must exceed before an
occupied SPT alarm is generated. The alarm returns to normal when the space
temperature drops below the high effective setpoint or rises above the low effective
setpoint.
D:
R: 3°F
0 to 20°F
Alarm Delay (min/deg) – Determines the amount of delay before an occupied space
temperature alarm is generated when the controller transitions to the occupied mode.
The delay time equals this value multiplied by the difference between the sensor
temperature and occupied alarm setpoint plus 15 minutes.
D:
R: 10 minutes
0 to 60 minutes
Unoccupied Low SPT Alarm Limit –The value that the space temperature must drop
below to generate a Space Temperature Alarm in the unoccupied mode. There is a
fixed hysteresis of 1° F for return to normal.
D:
R: 45°F
-60 to 250°F
Unoccupied High SPT Alarm Limit – The value that the space temperature must
exceed to generate a Space Temperature Alarm in the unoccupied mode. There is a
fixed hysteresis of 1° F for return to normal.
D:
R: 90°F
-60 to 250°F
Supply Air Temperature Alarm
Low SAT Alarm Limit – The value that the supply air temperature must drop below to
generate a Supply Air Temp Alarm. There is a fixed hysteresis of 1° F for return to
normal.
D:
R: 45°F
-60 to 250°F
High SAT Alarm Limit – The value that the supply air temperature must exceed to
generate a Supply Air Temp Alarm. There is a fixed hysteresis of 1° F for return to
normal.
D:
R: 120°F
-60 to 250°F
Space Humidity Alarm
Low Space Humidity Alarm Limit – The value that the relative humidity must drop
below to generate a Low Space Humidity Alarm. Requires a space relative humidity
transmitter and Configuration >Unit Configuration >Input 1 (or 2) Function set to
Space RH Sensor .
D:
R: 30%
0 – 99 %
High Space Humidity Alarm Limit – The value that the relative humidity must rise
above to generate a High Space Humidity Alarm. Requires a space relative humidity
transmitter and Configuration >Unit Configuration >Input 1 (or 2) Function set to
Space RH Sensor .
D:
R: 70%
0 – 99 %
IAQ/Ventilation Alarm