kitControl-OutsideAirOptimization
This component supports applications that need to allow for enthalpy based free cooling. This object is typically used during occupancy periods.
OutsideAirOptimization is available in the Energy folder kitControl palette.
The freeCooling output is set to false if outside >= inside and set to true if outside <=
inside - (abs) thresholdSpan.
There is also a low temperature check to protect against freezing.
| Property | Value | Description |
|---|---|---|
| Temperature Facets | Config Facets window | Selects units and configures how the value displays: units defaults to temperature. precision defines the number of decimal places of temperature. min defines the lowest temperature allowed. max defines the highest temperature allowed. This configuration applies to Outside Temp, Inside Temp, and Low Temperature Limit properties. |
| Humidity Facets | Config Facets window | Selects units and configures how the value displays: units defaults to percentage of relative humidity (%RH). precision defines the number of decimal places of humidity percentage. min defines the lowest humidity allowed. max defines the highest humidity allowed. This configuration applies to the Outside Humidity and Inside Humidity property values. |
| Outside Temp | number of degrees of temperature (defaults to 0.0 degrees F) and null definition | Defines the current outside air temperature. This input
must be valid for this object to function. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Outside Humidity | percentage of humidity (defaults to 0.0 RH percent) and null definition | Defines the current outside air humidity. This input must
be valid for this object to function. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Inside Temp | number of degrees of temperature (defaults to 0.0 degrees F) and null definition | Defines the current inside air temperature. This input must be valid for this object to functio |
| Inside Humidity | percentage of humidity (defaults to 0.0 RH percent) and null definition | Defines the current inside air humidity. This input must be valid for this object to function. |
| Low Temperature Limit | number of degrees of temperature (defaults to 0.0 degrees F) and null definition | Provides freeze protection. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Outside Enthalpy | number (defaults to 0.00) and null definition | Displays the calculated outside air enthalpy. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Outside Enthalpy String | text (defaults to blank) and null definition | Provides the outside enthalpy value as a string or possible
status/error message. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Inside Enthalpy | number (defaults to 0.00) and null definition | Displays the calculated inside air enthalpy. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Inside Enthalpy String | text (defaults to blank) and null definnition | Provides the inside enthalpy value as a string or possible
status/error message. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Free Cooling | true or false (default) and null definition | Sets the value of the Free Cooling Command when the component determines that free cooling should be used.
Otherwise, the value is null. When null value is checked, the value displayed defaults to the incoming value from the device. If you remove the check mark you can configure the In value. |
| Current Mode | text (defaults to No Free Cooling) | Indicates what mode this object is currently in: Input out of range Free Cooling No Free Cooling Low temperature Input error |
| Threshold Span | number to two decimal places (defaults to 1.00) | Configures the difference between the inside enthalpy and the outside enthalpy. The actual difference must be greater than this value before the system enables free cooling. |
| Use Enthalpy | true (default) or false | Enables (true) and disables (false) the use of enthalpy for determining if free cooling is available. Otherwise, the component uses outside and inside temperature to decide. |
| Free Cooling Command | true (default) or false | Defines the Boolean value to be set in the Free Cooling property if free cooling is available. |
| Use Null Output | true (default) or false | true sets the null flag on Free Cooling output when free cooling is not available. |