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Direct Digital Control
The DDC terminal unit controls are
sometimes specified to be supplied by
the controls contractor in order to ensure
compatibility with a proprietary Building
Automation System (BAS).
Typically the controls contractor will
supply the terminal unit controller which
incorporates an air flow transducer, a
variety of inputs and outputs and an electric
actuator.
In order to simplify integration of terminal
unit controls with the Building Automation
System (BAS), Price will factory install
DDC controls supplied by various controls
manufacturers. When requested, Price will
factory install, wire and mount specified
control components on the terminal unit.
When required a protective shroud is
supplied by Price to enclose the control
components.
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The Price multipoint flow sensor is
compatible with most DDC controls on the
market and is recommended for applications
requiring factory mounting of DDC controls.
Price will also provide operational checks
and calibration of control components
before factory shipment, on request.
These additional services performed in the factory ensure an operational unit and reduce field labor. Price can also supply its own brand of DDC controls called the Price Intelligent Controller (PIC). This controller can operate stand alone or be networked to a Building Automation System (BAS) using the ASHRAE standard BACnet. The PIC controller is shown below on the A terminal unit. For more information on the PIC controller. |
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