3.1.50.1 - 3.1.83.2 AHU Rules
3.1.50.1 - Hot Deck Temperature Not Rising In Temperature With Heating Command On
Summary
There is no increase in temperature across the heating coil with the valve open or heating command on, indicating the heating valve is not opening or no heating available. This will lead to increased comfort complaints.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Da Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Hot Deck Temperature |
Hot Deck Temp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Threshold |
Numeric |
5 |
This number is the filter mixed air temp threshold. The mixed air temp plus this threshold must be equal to or greater than the cold deck temperature for a period longer than the delay in order for a fault condition to exist. |
| Valve Threshold |
Numeric |
5 |
This number is the heating command valve threshold. The heating command must be greater than this threshold for a period longer than the delay in order for a fault condition to exist. |
3.1.51.1 - Cold Deck Temperature Not Dropping in Temperature With Cooling Command On
Summary
There is no decrease in temperature across the cooling coil with the valve open or cooling command on, indicating the cooling valve is not opening or no cooling available. This will lead to increased comfort complaints.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cold Deck Temperature |
ColdDeckTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Temperature Threshold |
Numeric |
5 |
|
| Open Valve Threshold |
Numeric |
5 |
|
3.1.52.1 - Mixed Air Temperature Too Low; Should Be Between Outside and Return Air Temperatures
Summary
Mixed air temperature too low; should be between the outside air temperature and the return air temperature. One or more of the three temperature sensors are out of calibration
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Temperature |
RaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station |
Optional |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Mixed Air Temperature Error Threshold |
Numeric |
5 |
Mixed air temperature error threshold. This constant must be less than return air temperature minus the return air temperature error threshold for a period longer than delay in order for a fault to exist. |
| Return Air Temperature Error Threshold |
Numeric |
2 |
Return air temperature error threshold. The return air temperature minus this constant must be less than the mixed air temperature error threshold for a period longer than delay in order for a fault to exist. |
| Outside Air Temperature Error Threshold |
Numeric |
5 |
Outside air temperature error threshold. The outside air temperature minus this constant must be less than mixed air temperature error threshold for a period longer than delay in order for a fault to exist. |
3.1.53.1 - Mixed Air Temperature Too High; Should Be Between Outside and Return Air Temperatures
Summary
Mixed air temperature is too high; should be between outside air temperature and return air temperature. One or more of the three temperature sensors are out of calibration.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Temp |
RaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Optional |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
5 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Mixed Air Temperature Error Threshold |
Numeric |
5 |
Mixed air temperature error threshold. This constant must be greater than return air temperature minus the return air temperature error threshold for a period longer than delay in order for a fault to exist. |
| Return Air Temperature Error Treshold |
Numeric |
2 |
Return air temperature error threshold. The return air temperature minus this constant must be less than the mixed air temperature error threshold for a period longer than delay in order for a fault to exist. |
| Outside Air Temperature Error Threshold |
Numeric |
5 |
Outside air temperature error threshold. The outside air temperature minus this constant must be less than mixed air temperature error threshold for a period longer than delay in order for a fault to exist. |
3.1.55.1 - Discharge Air Temperature Too Low in Heating Mode
Summary
Discharge air temperature too low, when in the heating or morning warm up operating state. It should be higher than mixed air temperature.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This Point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Discharge Air Temperature Threshold |
Numeric |
2 |
The discharge air temperature error threshold. |
| Mixed Air Temperature Error Threshold |
Numeric |
5 |
The mixed air temperature error threshold. |
| Supply Fan Temperature Rise |
Numeric |
2 |
The supply fan temperature rise. |
| Heating Command |
Numeric |
0 |
The heating command threshold. |
| Cooling Command |
Numeric |
0 |
The cooling command threshold. |
3.1.56.1 - Discharge Air Temperature Too Low in Full Heating
Summary
Discharge air temperature too low in full heating during a heating operating state.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTempOffPremWS |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Discharge Air Temperature Error |
Numeric |
10 |
The discharge air temperature error threshold |
| Design Discharge Air Temperature |
Numeric |
100 |
Design discharge air temperature. |
| Maximum Heating Command |
Numeric |
99 |
The maximum heating command threshold. |
| Cooling Command |
Numeric |
0 |
The cooling command threshold. |
3.1.57.1 - Discharge and Mixed Air Temperature Should be Approximately Equal When Economizing
Summary
Discharge air temperature and mixed air temperature should be approximately equal, when in economizer mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Discharge Air Fan Temperature Rise Threshold |
Numeric |
2 |
This discharge air fan temperature rise threshold. |
| Discharge Air Temperature Error |
Numeric |
2 |
The discharge air temperature error threshold. |
| Heating Command |
Numeric |
0 |
The heating command threshold. |
| Cooling Command |
Numeric |
0 |
The cooling command threshold. |
| Mixed Air Temperature Error |
Numeric |
5 |
The mixed air temperature error threshold. |
3.1.58.1 - Outside Air Temperature Too High For Free Cooling Only
Summary
Outside air temperature too high for free cooling without additional mechanical cooling.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Temp Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprMinPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTemp |
This Point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Outside Air Temperature |
OaTempOnPremWS |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station |
Optional |
Scalar |
| Outside Air Temperature |
OaTempOffPremWS |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Outside Air Temperature Threshold |
Numeric |
2 |
The outside air temperature error threshold. |
| Discharge Air Fan Temperature Threshold |
Numeric |
2 |
This discharge air fan temperature rise threshold. |
| Discharge Air Temperature Error Threshold |
Numeric |
2 |
The discharge air temperature error threshold. |
| Heating Command |
Numeric |
0 |
The heating command threshold. |
| Cooling Command |
Numeric |
0 |
The cooling command threshold. |
3.1.59.1 - Outside and Mixed Air Temperature Should Be Approximately Equal During Mechanical Free Cooling Mode
Summary
Outside and mixed air temperature should be approximately equal during mechanical and free cooling mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (singe or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temp |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point myst be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point myst be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTemp |
This point myst be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTempOnPremWS |
This point myst be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Optional |
Scalar |
| Outside Air Temperature |
OaTempOffPremWS |
The point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
0 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Outside Air Temperature Error Threshold |
Numeric |
2 |
The outside air temperature error threshold. |
| Outside Air Damper Position Threshold |
Numeric |
100 |
The outside air damper position threshold. |
| Mixed Air Temperature Threshold |
Numeric |
5 |
The mixed air temperature error threshold. |
| Heating Command |
Numeric |
0 |
The heating command threshold. |
| Cooling Command |
Numeric |
0 |
The heating command threshold. |
3.1.60.1 - Outside Air Temperature Too Low For 100 Percent Outside Air Cooling During Mechanical and Free Cooling
Summary
Outside air temperature too low for 100% outside air cooling during mechanical and free cooling.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Temp Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
The point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature |
OaTempOnPremWS |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Optional |
Scalar |
| Outside Air Temperature |
OaTempOffPremWS |
This point must be a direct child of the equipment that the rule is attached to. Point is off prem at weather station. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Outside Air Temperature Error Threshold |
Numeric |
2 |
The outside air temperature error threshold. |
| Outside Air Damper Position Threshold |
Numeric |
100 |
The outside air damper position threshold. |
| Discharge Air Temperature Threshold |
Numeric |
2 |
The discharge air temperature threshold. |
| Discharge Air Fan Temperature Rise Threshold |
Numeric |
2 |
The discharge air fan temperature rise threshold. |
| Heating Command |
Numeric |
0 |
The heating command threshold. |
| Cooling Command |
Numeric |
o |
The cooling command threshold. |
3.1.61.1 - Discharge Air Temperature Too High During Mechanical and/or Free Cooling
Summary
Discharge air temperature too high during mechanical and/or free cooling; should be less than mixed air temperature.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Temperature |
MaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprPosSp |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Discharge Air Temperature Error Threshold |
Numeric |
2 |
This discharge air temperature threshold. |
| Discharge Air Fan Differential Temperature Treshold |
Numeric |
2 |
The discharge air fan differential temperature threshold. |
| Mixed Air Temperature Error Threshold |
Numeric |
5 |
The mixed air temperature error threshold. |
| Heating Command |
Numeric |
0 |
The heating command threshold. |
| Cooling Command |
Numeric |
o |
The cooling command threshold. |
| Outside Air Damper Position Threshold |
Numeric |
100 |
The outside air damper position threshold |
3.1.62.1 - Discharge Air Temperature too High in Full Cooling
Summary
Discharge air temperature too high during mechanical and/or free cooling; should be less than mixed air temperature.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Temp Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprPosSp |
This point must be a direct child of the equipment that the rule is attached to. Point is on prem at weather station. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Discharge Air Temperature Threshold |
Numeric |
2 |
This discharge air temperature threshold. |
| Heating Command Threshold |
Numeric |
0 |
The heating command threshold. |
| Maximum Cooling Command Threshold |
Numeric |
o |
The maximum cooling command threshold. |
| Outside Air Damper Position Threshold |
Numeric |
100 |
The outside air damper position threshold |
3.1.63.1 - Cold Deck Temperature Sensor Failure
Summary
The temperature sensor point does not change by more than a tolerance of (0.01) or is outside the range (250 - -40).
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
OaTemp OaTempOnPremWS OaTempOffPremWS |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Cold Deck Temperature |
ColdDeckTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the rules parent equipment |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Value |
Numeric |
250 |
The high threshold. |
| Minimum Value |
Numeric |
-40 |
The low threshold. |
| Variance |
Numeric |
0.01 |
The variance threshold |
3.1.64.1 - Hot Deck Temperature Sensor Failure
Summary
The hot deck temperature sensor point does not change by more than a tolerance of (0.01) or is outside the range (250 - -40).
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Hot Deck Temperature |
HotDeckTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the rules parent equipment |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Value |
Numeric |
250 |
The high threshold. |
| Miniumum Value |
Numeric |
-40 |
The low threshold. |
| Variance |
Numeric |
0.01 |
The variance threshold |
3.1.65.1 - Fan Status is Off While Unit Appears to be Operating
Summary
This rule would identify periods of time when the unit is indicated to be off, but the pressure, vfd speed, return fan status, or other feedback indicates the unit is actually operating.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
DaFlow || DaFanFreq || (DaPress & DaPressSp) |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Flow |
DaFlow |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Da Fan Status (single or common) |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DA Fan Frequency (single or common) |
DaFanFreq |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| DA Pressure |
DaPress |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| DA Pressure Setpoint |
DaPressSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
30 |
The delay represents a span of time in minutes during which the ahu must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Discharge Airflow Threshold |
Numeric |
5000 |
The maximum discharge airflow threshold. |
| Discharge Airflow Threshold |
Numeric |
20 |
The discharge airflow threshold. |
| Minimum Fan Frequency |
Numeric |
0 |
The minimum fan frequency threshold. |
| Discharge Air Pressure Percentage Error |
Numeric |
20 |
The discharge air pressure percentage error. |
3.1.66.1 - Zone Temperature is Less Than Setpoint
Summary
The zone temperature is less than the zone temperature setpoint and may be experiencing inefficient control or mechanical issues. This will lead to increased operating costs and comfort complaints.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Zone Temperature Setpoint |
ZoneTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature |
ZoneTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Effective Heating Setpoint |
EffHeatSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Occupied Heating Setpoint |
OccHeatSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Zone Temperature Threshold |
Numeric |
1 |
|
3.1.67.1 - Zone Temperature is Greater Than Setpoint
Summary
The zone temperature is greater than the zone temperature setpoint and may be experiencing inefficient control of mechanical issues. This will lead to increased operating costs and comfort complaints.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Effective Cooling Setpoint |
EffCoolSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Occupied Cooling Setpoint |
OccCoolSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature Setpoint |
ZoneTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature |
ZoneTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Zone Temperature Threshold |
Numeric |
1 |
|
3.1.68.1 - High Return Air Humidity
Summary
When the return air humidity is greater than its maximum error allowed while the unit is in operation.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Humidity |
RaHumidity |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Return Air Humidity Threshold |
Numeric |
50 |
|
| Return Air Humidity Error Threshold |
Numeric |
1 |
|
3.1.69.1 - High Return Air CO2 levels
Summary
When the return air CO2 has a value greater than its maximum setting while the unit is in operation.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Return Air CO2 Setpoint |
RaCO2Sp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air CO2 |
RaCO2 |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
60 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Return Air CO2 Level Error Threshold |
Numeric |
100 |
|
3.1.69.2 - Low Return Air CO2 Levels
Summary
When the CO2 reading is abnormally low while the unit operation is not in economizer or purge mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Return Air CO2 |
RaCO2 |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Minimum CO2 Level Threshold |
Numeric |
350 |
|
| Maximum Outside Air Damper Position Threshold |
Numeric |
90 |
|
3.1.70.1 - Supply Air Flow Reading When Unit is Off
Summary
When the supply air flow has a reading which is higher than its minimum setting while the unit is off.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Airflow |
DaFlow |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
60 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Airflow Threshold |
Numeric |
0 |
|
3.1.71.1 - Chilled Water Valve Open While Unit is Off
Summary
The chilled water valve is open while the unit is off.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Commmand |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
|
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Cooling Command Threshold |
Numeric |
15 |
|
3.1.72.1 - Heating Control Valve Open While Unit is Off
Summary
The heating control valve is open while the unit is off.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rules attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
60 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Heating Command Threshold |
Numeric |
10 |
|
3.1.73.1 - Return Air CO2 Sensor Failure
Summary
The CO2 level is outside of the limit or it does not change while the unit is operational.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Return Air CO2 |
RaCO2 |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| High Limit Threshold |
Numeric |
5000 |
|
| Low Limit Threshold |
Numeric |
0 |
|
| Variance Threshold |
Numeric |
1 |
|
3.1.74.1 - Zone CO2 Sensor Failure
Summary
The CO2 level is outside of the limit or it does not change while the unit is operational.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Zone CO2 |
ZoneCO2 |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| DaFanSts |
Discharge Air Fan Status |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| High Limit Threshold |
Numeric |
5000 |
|
| Low Limit Threshold |
Numeric |
0 |
|
| Variance Threshold |
Numeric |
1 |
|
3.1.75.1 - Discharge Air Fan VFD is Chronically at Full Speed
Summary
The discharge air fan's VFD operates consistently above a specific high percentage.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Speed |
DaFanSpd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Fan Speed Threshold |
Numeric |
95 |
|
3.1.76.1 - Return Air Damper Command and Position Do Not Match
Summary
Return air damper command does not match return air damper position.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Proints
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Return Air Damper Position |
RaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Damper Command |
RaDmprCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.76.2 - Return Air Damper is Invariant During Free Cooling or Mechanical and Free Cooling Mode
Summary
The return air damper has not moved, when it should be moving.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Return Air Damper Position |
RaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be the direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature On Premise Weather Station |
OaTempOffPremWS |
This point must be a direct child of the rule that the equipment is attached to. |
Optional |
Vector |
| Outside Air Temperature Off Premise Weather Station |
OaTempOffPremWS |
This point must be a direct child of the rule that the equipment is attached to. |
Optional |
Vector |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the rule that the equipment is attached to. |
Optional |
Vector |
| Economizer Enable Outside Air Temperature Setpoint |
EconEnabOaTempSp |
This point must be a direct child of the rule that the equipment is attached to. |
Optional |
Vector |
| Economizer Mode |
EconMode |
This point must be a direct child of the rule that the equipment is attached to. |
Optional |
Vector |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Variance Threshold |
Numeric |
1 |
|
| Economizer Outside Air Temperature Setpoint Threshold |
Numeric |
70 |
|
| Heating Command Threshold |
Numeric |
0 |
|
| Cooling Command Threshold |
Numeric |
0 |
|
3.1.76.3 - Return Air Damper Fully Or Partially Closed When Unit is Off
Summary
The Return Air Damper is partially or fully closed, when the supply fan is off. The damper should be fully open when the unit is off.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Damper Position |
RaDmprsPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Damper Position Threshold |
Numeric |
100 |
|
3.1.76.4 - Return Air Damper Should Be Fully Closed When Outside Air Damper is Fully Open During Mechanical and Free Cooling Mode
Summary
Return air damper should be fully closed when outside air damper is fully open during Mechanical and Free Cooling mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Damper Position |
RaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Heating Command Threshold |
Numeric |
0 |
|
| Cooling Command Threshold |
Numeric |
0 |
|
| Outside Air Damper Position Threshold |
Numeric |
100 |
|
| Return Air Damper Position Threshold |
Numeric |
0 |
|
3.1.77.1 - Outside Air Damper Command and Position Do Not Match
Summary
The outside air damper command does not match the outside air damper position.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Outside Air Damper Command |
OaDmprCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.77.2 - Outside Air Damper is Invariant During Free Cooling or Mechanical and Free Cooling Mode
Summary
Outside air damper has not moved, when it should be moving during free cooling or mechanical and free cooling mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature On Premise Weather Station |
OaTempOnPremWS |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Outside Air Temperature Off Premise Weather Station |
OaTempOffPremWS |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Economizer Enable Outside Air Temperature Setpoint |
EconEnabOaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
|
| Economizer Mode |
EconMode |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Variance Threshold |
Numeric |
1 |
|
| Economizer Outside Air Temperature Setpoint Threshold |
Numeric |
70 |
|
| Heating Command Threshold |
Numeric |
0 |
|
| Cooling Command Threshold |
Numeric |
0 |
|
3.1.77.3 - Outside Air Damper Unable to Meet Discharge Air Temperature Setpoint When Outside Air Temperature is Low Enough
Summary
When the outside air damper is 100% and the outside air temperature is low enough to meet discharge air temperature setpoint, but it cannot meet setpoint.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature On Premise Weather Station |
OaTempOnPremWS |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Outside Air Temperature Off Premise Weather Station |
OaTempOffPremWS |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Outside Air Damper Position Threshold |
Numeric |
100 |
|
| Temperature Threshold |
Numeric |
10 |
|
3.1.78.1 - Mixed Air Damper Command and Position Do Not Match
Summary
Mixed air damper command does not match mixed air damper position.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Mixed Air Damper Command |
MaDmprCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Damper Position |
MaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
|
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.78.2 - Mixed Air Damper is Invariant During Free Cooling or Mechanical and Free Cooling Mode
Summary
The mixed air damper has not moved, when it should be moving during free cooling or mechanical and free cooling mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Mixed Air Damper Position |
MaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Temperature On Premise Weather Station |
OaTempOnPremWS |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Outside Air Temperature Off Premise Weather Station |
OaTempOffPremWS |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Economizer Enable Outside Air Temperature Setpoint |
EconEnabOaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
| Outside Air Temperature |
OaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
|
| Economizer Mode |
EconMode |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Variance Threshold |
Numeric |
1 |
|
| Economizer Outside Air Temperature Setpoint Threshold |
Numeric |
70 |
|
| Heating Command Treshold |
Numeric |
0 |
|
| Cooling Command Threshold |
Numeric |
0 |
|
3.1.78.3 - Mixed Air Damper Position is Greater Than Minimum Setpoint During Heating Mode
Summary
Excess outside air is being brought into the building. The mixed air damper position is greater than the minimum position setpoint during heating mode.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Mixed Air Damper Position |
MaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Vector |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
30 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Cooling Command Threshold |
Numeric |
0 |
|
| Heating Command Threshold |
Numeric |
0 |
|
| Mixed Air Damper Position Threshold |
Numeric |
0 |
|
3.1.78.4 Mixed Air Damper Position is Less Than The Minimum Damper Position Setpoint
Summary
A less amount of outside air is being brought into the building with the mixed air damper position less than the outside air damper minimum position setpoint.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Damper Position |
MaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
0 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.78.5 - Mixed Air Damper Open When Unit is Off
Summary
The mixed air damper is open to the outside air side and then supply fan is off, allowing air infiltration. The damper should be shut to the outside air when the unit is off.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Mixed Air Damper Position |
MaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
|
|
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Mixed Air Damper Position Threshold |
Numeric |
0 |
|
3.1.79.1 - Exhaust Air Damper Command and Position Do Not Match
Summary
The exhaust air damper command does not match the exhaust air damper position.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Exhaust Air Damper Command |
EaDmprCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Exhaust Air Damper Position |
EaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.79.2 - Exhaust Air Damper Appears Not To Be Operating As Expected
Summary
The exhaust air damper has not operated as expected or has not moved, when it should be moving.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Return Air Fan Status |
RaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Building Static Pressure |
BldgPress |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Building Static Pressure Setpoint |
BldgPressSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Exhaust Air Damper Position |
EaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Return Air Damper Position |
RaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Building Pressure Error Threshold |
Numeric |
0.01 |
|
| Damper Position Offset Threshold |
Numeric |
0 |
|
3.1.80.1 - Chilled Water Valve Command and Position Do Not Match
Summary
The chilled water valve command does not match chilled water valve position.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Chilled Water Valve Position |
ChWVlvPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.80.2 - Single Zone AHU Chilled Water Valve is Invariant During Free Cooling and Mechanical Cooling or Mechanical Cooling Mode
Summary
Chilled water valve has not moved, when it should be moving during free cooling and mechanical cooling or mechanical cooling mode and zone temperature is about the zone temperature setpoint.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Occupied Mode |
Occ |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Effective Cooling Setpoint |
EffCoolSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Occupied Cooling Setpoint |
OccCoolSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature Setpoint |
ZoneTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature |
ZoneTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Zone Temperature Error Threshold |
Numeric |
2 |
|
| Heating Command Threshold |
Numeric |
0 |
|
| Maximum Cooling Command Threshold |
Numeric |
100 |
|
| Outside Air Damper Position Threshold |
Numeric |
20 |
|
| Variance |
Numeric |
1 |
|
3.1.80.3 - AHU Chilled Water Valve is Invariant During Free Cooling and Mechanical Cooling or Mechanical Cooling Mode
Summary
The chilled water valve has not moved, when it should be moving during free cooling and mechanical cooling or mechanical cooling mode and discharge air temperature is above discharge air temperature setpoint.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Occupied Mode |
Occ |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Heating Command Threshold |
Numeric |
0 |
|
| Outside Air Damper Position Threshold |
Numeric |
100 |
|
| Discharge Air Temperature Threshold |
Numeric |
2 |
|
| Maximum Cooling Command Threshold |
Numeric |
100 |
|
| Variance Threshold |
Numeric |
1 |
|
3.1.81.1 - Heating Command and Position Do Not Match
Summary
The heating command does not match heating position.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Heating Position |
HeatPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
3.1.81.2 - Single Zone AHU Heating Command is Invariant During Heating Mode
Summary
The heating command has not moved, when it should be moving during heating mode and zone temperature is below the zone temperature setpoint.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Occupied Mode |
Occ |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Effective Heating Setpoint |
EffHeatSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Occupied Heating Setpoint |
OccHeatSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature |
ZoneTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Zone Temperature Setpoint |
ZoneTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Minimum Position Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Cooling Command Threshold |
Numeric |
0 |
|
| Zone Temperature Error Threshold |
Numeric |
2 |
|
| Maximum Heating Command Threshold |
Numeric |
100 |
|
| Variance Threshold |
Numeric |
1 |
|
3.1.81.3 - AHU Heating Command is Invariant During Heating Mode
Summary
Heating has not moved, when it should be moving during heating mode and zone temperature is below discharge air temperature.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Occupied Mode |
Occ |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position |
OaDmprPos |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Outside Air Damper Position Minimum Setpoint |
OaDmprMinPosSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
120 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Cooling Command Threshold |
Numeric |
0 |
|
| Discharge Air Temperature Error Threshold |
Numeric |
4 |
|
| Maximum Heating Command Threshold |
Numeric |
100 |
|
| Variance Threshold |
Numeric |
1 |
|
3.1.82.1 - Single Zone AHU Has Insufficient Cooling Capacity
Summary
When the single zone temperature is greater than a maximum error allowed and the cooling has been commanded to maximum cooling.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Zone Temperature |
ZoneTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Effective Cooling Setpoint |
EffCoolSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Occupied Cooling Setpoint |
OccCoolSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature Setpoint |
ZoneTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Zone Temperature Error Threshold |
Numeric |
1 |
|
| Maximum Cooling Command Threshold |
Numeric |
100 |
|
3.1.82.2 - AHU Has Insufficient Cooling Capacity
Summary
When the discharge air temperature is greater than a maximum error allowed and the cooling has been commanded to maximum cooling.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Cooling Command |
ClgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
60 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Zone Temperature Error Threshold |
Numeric |
4 |
|
| Maximum Cooling Command Threshold |
Numeric |
100 |
|
3.1.83.1 - Single Zone AHU Has Insufficient Heating Capacity
Summary
When the zone temperature is greater than a maximum error allowed and the heating valve has been commanded to the maximum heating.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Zone Temperature |
ZoneTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Effective Heating Setpoint |
EffHeatSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Occupied Heating Setpoint |
OccHeatSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
| Zone Temperature Setpoint |
ZoneTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Optional |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
60 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Maximum Heating Command Threshold |
Numeric |
100 |
|
| Zone Temperature Error Threshold |
Numeric |
2 |
|
3.1.83.2 - AHU Has Insufficient Heat Capacity
Summary
When the discharge air temperature is greater than the maximum error allowed and the heating valve has been commanded to maximum heating.
| Equipment Type |
Equipment Tag Constraints |
Tuple Constraints |
| ahu |
-- |
-- |
Input Points
| Name |
Point Template |
Positional Requirements |
Optionality |
Multiplicity |
| Discharge Air Fan Status |
DaFanSts |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Heating Command |
HtgCmd |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature |
DaTemp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
| Discharge Air Temperature Setpoint |
DaTempSp |
This point must be a direct child of the equipment that the rule is attached to. |
Mandatory |
Scalar |
Input Constants
| Name |
Data Type |
Default Value |
Description |
| Delay |
Numeric |
15 |
The delay represents a span of time in minutes during which the sensor must be in a fault state before the rule starts to actually report that it is in a fault state. The intent of the delay is to reduce the level of alert noise by ensuring that the system does not alert until the fault condition has been in effect for some minimal interval of time. |
| Discharge Air Temperature Error Threshold |
Numeric |
4 |
|
| Maximum Heating Command Threshold |
Numeric |
100 |
