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Appendix A: RTU Open Points/Properties
70 RTU Open
Alarms
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Point Name/Description
Range
Safety Chain
R: – Indicates if the Safety Chain circuit trips. Normal/Alarm
Fire Shutdown
R: – Indicates if the Fire Shutdown circuit trips. Normal/Alarm
Compressor Safety
R: – Indicates if the Compressor Safety circuit trips. Normal/Alarm
Space Temp Sensor –
R: Indicates if the space temperature sensor fails. Normal/Alarm
Supply Air Temp Sensor –
R: Indicates if the supply air temperature sensor fails. Normal/Alarm
Outdoor Air Temp Sensor Alarm –
R: Indicates if the outdoor air temperature sensor fails. Normal/Alarm
Space Relative Humidity Sensor –
R: Indicates if the space relative humidity sensor fails. Normal/Alarm
IAQ Sensor –
Indicates if the indoor air quality (CO
2
R:
) sensor fails.
Normal/Alarm
OAQ Sensor –
Indicates if the outdoor air quality (CO
2
R:
) sensor fails.
Normal/Alarm
Space Temperature –
R: Indicates if the space temperature sensor exceeds the high or low alarm
limit.
Normal/Alarm
Alarming Temperature
R: – The value of the alarming space temperature sensor. The sensor's
range
Alarm Limit Exceeded
R: – The alarm limit that the alarming space temperature sensor exceeded. -60 to 250°F
High Supply Air Temperature
– Indicates if the supply air temperature exceeds the
High SAT
Alarm Limit
R:
.
Normal/Alarm
Low Supply Air Temperature
– Indicates if the supply air temperature falls below the
Low SAT
Alarm Limit
R:
.
Normal/Alarm
Setpoint Slider
R: – Indicates if the T56 sensor's setpoint slider potentiometer fails. Normal/Alarm
Switch Configuration
R: – Indicates if a duplicate configuration exists for two or more binary Input
3, 5, 8, & 9 Functions.
Normal/Alarm
Analog Input Configuration
R: – Indicates if a duplicate configuration exists at the analog Input 1
& 2 Functions.
Normal/Alarm
High Space Relative Humidity
– Indicates if the space relative humidity exceeds the
High
Space Humidity Alarm Limit
R:
.
Normal/Alarm
Low Space Relative Humidity
– Indicates if the space relative humidity falls below the
Low
Space Humidity Alarm Limit
R:
.
Normal/Alarm
High CO2
– Indicates if the indoor CO2 level rises above the
Occupied High CO2 Alarm Limit
R: . Normal/Alarm
Supply Fan Runtime
– Indicates if the supply fan runtime exceeds the value of the
Supply Fan
Service Alarm Timer
R:
.
Normal/Alarm
Compressor 1 Runtime
– Indicates if the compressor 1 runtime exceeds the value of the
Compressor 1 Service Alarm Timer
R:
.
Normal/Alarm