Appendix A: RTU Open Points/Properties in i-Vu®/Field Assistant
RTU Open v3
CARRIER CORPORATION ©2019
Installation and Start-up Guide
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86
Point Name/Description
Range
Save Performance Data Daily
– If enabled, automatically moves
Current Performance
Data
to
Historical Performance Data
when resetting the
Current Performance Data
every night at midnight.
D:
R:
Disable
Disable/Enable
Equipment Runtime
– RTU Open's hours of operation which occurred in the previous
period that was prior to the last
Performance Data
reset.
R: __ hr
Economizer Utilization
– Percentage of
Equipment Runtime
hours, above active
Economizer time, which occurred in the previous period that was prior to the last
Performance Data
reset.
R: 0 to 100%
DCV Utilization
– Percentage of
Equipment Runtime
hours that the DCV was active in
the previous period that was prior to the last
Performance Data
reset.
R: 0 to 100%
Unocc Free Cool Utilization
– Percentage of
Equipment Runtime
hours that the
Unoccupied Free Cooling was active in the previous period that was prior to the last
Performance Data
reset.
R: 0 to 100%
Part Load Cooling Utilization
– Percentage of
Equipment Runtime
hours that the
Cooling, with less than the maximum configured number of cooling stages, was active in
the previous period that was prior to the last
Performance Data
reset.
R: 0 to 100%
Full Load Cooling Utilization
– Percentage of
Equipment Runtime
hours that the
Cooling, with all of the configured number of cooling stages, was active in the previous
period that was prior to the last
Performance Data
reset.
R: 0 to 100%
Heating Utilization
– Percentage of
Equipment Runtime
hours that the Heating was
active in the previous period that was prior to the last
Performance Data
reset.
R: 0 to 100%
Previous High OAT
– Maximum recorded OAT in the previous period that was prior to
the last
Performance Data
reset.
R: __°F/C
Previous Low OAT
– Minimum recorded OAT in the previous period that was prior to the
last
Performance Data
reset.
R: __°F/C
Alarms
Navigation:
i-Vu® / Field Assistant:
Properties
>
Control Program
>
Alarms
Point Name/Description
Range
Safety Chain
– Indicates if the safety chain circuit trips.
R: Normal/Alarm
Fire / Smoke Shutdown
– Indicates if the fire shutdown circuit trips.
R: Normal/Alarm
Gas Valve
– Indicates that the integrated gas valve is stuck open and a flame is still
present while heat has been commanded off.
R: Normal/Alarm
Summary of Contents for RTU Open v3
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