Delta eZV-440 Application Manual

Contents

Delta eZV-440 Application Manual Manual pdf 25 page image

General TabPage 24 of 84 eZV-440 Application GuideEdition 2.6Global SettingsThe following fields are found in the Global Settings section.Field Name DescriptionApplicationTypeSelect the main HVAC system application for this controller. This determinesthe algorithm that will be used for the controller.The options for the eZV-440 are VAV-single duct, VVT and None.The configurable controller has no functional state until you select analgorithm.In a fully programmable controller, when you select an algorithm, you canoverride portions of the internal algorithm to suit your needs. See the sectionin this guide about overwriting the algorithm. Select None if you want toprogram a fully custom sequence of operations. When you select None, theinternal algorithms are disabled and all preconfigured algorithm I/O points andvariables are removed from the default database. Other object types, like AIC,that were part of the algorithm can be used as is or reconfigured.If you change an application type for another, the settings of theprevious application type will be deleted. You can save yourcontroller database before switching application types.TemperatureUnitsDisplays the temperature units used by the controller.Airflow Units Displays the airflow units used by the eZV-440 controller. Select betweenCFM, l/s or m3/h.In the configuration graphic, when VVT is selected as the application type, theunits are set to percentages which represent the damper min/max positions.When VAV is selected as the application type, the AV124 to AV127 objectsand the air flow setpoint will use the units set up in the Airflow Units field.ChildController(enteliWEBonly)If this controller reports to a parent controller, select this box. The childcontroller polls these variables from its parent controller:l HeatCoolLoad (AV802)l OccupancyMode (MV800)l DemandCtrlVent (AV813)