Credentials
With the Pressure Control example application on the controller, the VAV14-IP default credentials are:
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Username: admin
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Password: Admin123!
For more information, please see: Default Communication Settings and Credentials.
App Versioning
Please make sure to upload the most recent version of the application to the controller.
The most recent releases of tools containing the application (iC Tool or the nE2 Link module) are available in iSMA CONTROLLI Download Center.
Warning - Factory Default Deletes Application
The process of bringing back factory default settings erases the application from the controller. In such a case, it is required to restore the application from the available backup.
For detailed information on how to restore the backup, please see: Default Communication Settings and Credentials.
A Pressure Control example application for the VAV14-IP controls the room pressure adjusting it to a current demand setpoint. Additionally, this application has been enhanced with the function of heating the room using a duct reheater and/or peripheral heating such as a radiator or underfloor heating, implementing this function based on:
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occupancy status,
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space temperature,
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setpoint temperature.
The pressure control is based on the currently measured differential pressure between the room and the reference source in relation to the requested pressure setpoint for the room. The pressure demand is affected by the level of damper opening resulting from the pressure control loop.
The space temperature control loop is used to regulate the room temperature based on the current setpoint temperature and room occupancy status and influences the control of the reheater or peripheral heating according to the heating demand, as well as due to forcing from the HVAC mode.
The discharge air temperature control loop is used to regulate and limit the discharge air temperature specified by the current discharge air temperature setpoint based on the supply air temperature measurement. It can regulate and limit the reheater control only. The supply air temperature control loop operates only when there is a discharge air temperature sensor connected. If there is no discharge air temperature sensor, the control loop has no effect on regulate and limiting the supply air temperature.
The application is constructed to work in the following device configurations:
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pressure control,
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pressure control with optional reheater,
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pressure control with optional perimeter,
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pressure control with optional reheater and optional perimeter.
Configuration Scope
The Pressure Control example application can be configured in the following areas:
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damper direction,
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heating device type and priority,
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occupancy source,
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window and presence sensors,
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temperature source,
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temperature setpoint and offset.
For more details, please see Methods of Configuration.
Application Modes
Taking into consideration all configuration options the Pressure Control example application can be adapted to work in the following modes:
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pressure control,
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pressure control with optional reheater,
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pressure control with optional perimeter,
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pressure control with optional reheater and optional perimeter.
For more details, please see Configuration Variants.