Advance Overrides: View, Create, Release
There are four basic types of advanced override that can be performed if your user profile is assigned to a user role capable of performing advanced overrides:
- Present Value Override - circumvents the present value specified by the control strategy for a unit controller or application. The override value stays in effect until the value is released (by a user) and unless a competing request with a higher priority is received for the value.
- Additional Override - lets you specify a value for a piece of equipment that has additional points that can be individually overridden, such as valves. The only points available for this type of override are those that appear on the Overrides tab of the Properties window in Tracer Summit (namely, VAV Type II/II/IV, Space Comfort Controller (v14 & earlier)/(v15 & later), Voyager Rooftop Unit, Commercial Self-Contained Unit, Intellipack Rooftop Unit, Terminal Unit Controller). Additional overrides remain in effect until they are changed by another user.
- Timed Override - if a BCU has been configured for an area Timed Override, Tracer Ensemble can be used to make the timed override active or inactive. Details about the timed override can only be edited using Tracer Summit. Once activated, a timed override remains in effect until its configured time expires or a user deactivates it, whichever happens first.
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Note: Additional overrides and timed overrides are considered "Advanced Overrides" in terms of user role permissions. If your user profile is assigned to a role without access for Advanced Overrides, the Additional Overrides section and the Timed Override button will not appear on the Tracer Ensemble pages.
- Point Out of Service Override - Inputs and outputs can be put out of service with a specified value, and put back into service if they are currently out of service. In order to perform a point service type of override, your user profile must be assigned to a role with Point Service permission enabled.
To create a present value override:
- Use the building navigation sidebar to go to the status page for the unit controller or application you want to override.
- Click Override.
- Select Override Present Value.
- Select the priority level at which you want the override applied next to Apply at Priority Level. You cannot select a higher priority than your user role permits. Look at the priority array to see the competing controls for the present value. Your override will have no effect as long as there is a competing request of higher priority.
- Select the present value you want to apply next to Change Value To. Only valid values will appear in the list.
- Click Apply.
To create an additional override.
- Use the building navigation sidebar to go to the status page for the unit controller or application you want to override.
- Click Override.
- Locate the point you want to override, below the present value override.
- Select a new value in the Value column
- Click Apply.
To put an input or output point into or out of service:
- Use the building navigation sidebar to go to the status page for the input or output.
- Locate and select the point.
- Click Override.
- Select In service to put the point into service or select Out of Service to put the point out of service. If you are putting an input point out of service, specify a value for the point to use while it is out of service.
- Click Apply.
To release a standard override:
- Use the building navigation sidebar to go to the status page for the unit controller, application, or points that you want to override.
- Click Override.
- Click Release Control.
- Click Apply.
To activate or deactivate a timed override for an area:
- Use the building navigation sidebar to go to the area status page of the area you want to override.
- Click Timed Override. The Timed Override popup window appears.
- Select Active to activate the timed override or Inactive to deactivate the timed override.
- Click Apply.
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