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AIRSIDE LINKAGE ALARM
This alarm indicates that RTU Open controller was connected
to a zoned system using Airside Linkage and it lost communi-
cations with its linkage master or it is receiving data from mul-
tiple masters.
Performance
CURRENT PERFORMANCE DATA
The RTU Open controller collects performance data during opera-
tion. The data can be used to monitor the operation of the unit over
time.
EQUIPMENT RUNTIME
RTU Open controller monitors the supply fan and records the
amount of time the unit has been operating. This value will con-
tinue to accumulate runtime until Performance Data has been
changed to Reset or will also automatically reset every 24 hours
at midnight if Save Performance Data Daily is set to Enable.
ECONOMIZER UTILIZATION
The amount of time the equipment has operated in the econo-
mizer mode as a percentage of the equipment runtime above.
This value will continue to accumulate runtime until Perfor-
mance Data has been changed to Reset or will automatically
reset every 24 hours at midnight if Save Performance Data
Daily is set to Enable.
DCV UTILIZATION
The amount of time the equipment has provided Demand Con-
trolled Ventilation as a percentage of the equipment runtime
above. This value will continue to accumulate runtime until
Performance Data has been changed to Reset or will automati-
cally reset every 24 hours at midnight if Save Performance
Data Daily is set to Enable.
UNOCC FREE COOL UTILIZATION
The amount of time the equipment has provided Free Cooling
while unoccupied as a percentage of the equipment runtime
above. This value will continue to accumulate runtime until
Performance Data has been changed to Reset or will automati-
cally reset every 24 hours at midnight if Save Performance
Data Daily is set to Enable.
PART LOAD COOLING UTILIZATION
The amount of time the equipment has operated in the cooling
mode but at less than 100% full cooling capacity as a percent-
age of the equipment runtime above. This value will continue
to accumulate runtime until Performance Data has been
changed to Reset or will automatically reset every 24 hours at
midnight if Save Performance Data Daily is set to Enable.
FULL LOAD COOLING UTILIZATION
The amount of time the equipment has operated in the cooling
mode at 100% full cooling capacity as a percentage of the
equipment runtime above. This value will continue to accumu-
late runtime until Performance Data has been changed to Reset
or will automatically reset every 24 hours at midnight if Save
Performance Data Daily is set to Enable.
HEATING UTILIZATION
The amount of time the equipment has operated in the heating
mode as a percentage of the equipment runtime above. This
value will continue to accumulate runtime until Performance
Data has been changed to Reset or will automatically reset ev-
ery 24 hours at midnight if Save Performance Data Daily is set
to Enable.
RECORDED HIGH OAT
The highest value of OAT noted since the last reset occurred. This
value will continue to update until Performance Data has been
changed to Reset or will automatically reset every 24 hours at
midnight if Save Performance Data Daily is set to Enable.
RECORDED LOW OAT
The lowest value of OAT noted since the last reset occurred. This
value will continue to update until Performance Data has been
changed to Reset or will automatically reset every 24 hours at
midnight if Save Performance Data Daily is set to Enable
PERFORMANCE DATA
Indicates the mode that is currently in effect. This point is used to
reset all of the above performance data manually at any time.
Range = Collect/Reset
Default = Collect
HISTORICAL PERFORMANCE DATA
The RTU Open controller collects historical performance every
time the performance data above has been reset.
SAVE PERFORMANCE DATA DAILY
If set to Enable, the control will automatically transfer the Cur-
rent Performance Data directly to the Historical Performance
Data values for each entry once every 24 hours at midnight. All
Historical data will only be available for viewing for the next
24 hours. Also, all current performance data will be reset after
the data has been transferred.
Range = Disable/Enable
Default = Enable
EQUIPMENT RUNTIME
The value of the equipment runtime when the current perfor-
mance data was last reset.
ECONOMIZER UTILIZATION
The value of the Economizer Utilization when the current per-
formance data was last reset.
DCV UTILIZATION
The value of the DCV Utilization when the current perfor-
mance data was last reset.
UNOCC FREE COOL UTILIZATION
The value of the Unocc Free Cool Utilization when the current
performance data was last reset.
PART LOAD COOLING UTILIZATION
The value of the Part Load Cooling Utilization when the cur-
rent performance data was last reset.
FULL LOAD COOLING UTILIZATION
The value of the Full Load Cooling Utilization when the cur-
rent performance data was last reset.
HEATING UTILIZATION
The value of the Heating Utilization when the current perfor-
mance data was last reset.
PREVIOUS HIGH OAT
The value of the Recorded High OAT when the current perfor-
mance data was last reset.
PREVIOUS LOW OAT
The value of the Recorded Low OAT when the current perfor-
mance data was last reset.
Third Party Networking
Third party communication and networking troubleshooting
should be done by or with assistance from the front end third party
technician. A Module Status Report (Modstat) can be run from
Field Assistant or Equipment Touch (see Table 5 to perform). This
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