Specifications - City of Montpelier, Vermont

Montpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Title:15900 – Direct Digital Control SystemPage #:3 of 40c. Identify equipment and devices by the reference designations shown onthe drawings and by unique point identification used in system software.Provide material list with, or on, each drawing.d. Block diagrams and schematics showing riser diagrams, the layout ofequipment, communication cabling, and wire type.e. Schematics showing the general mechanical system layout with allsensors/devices of each mechanical system shown with correspondingdetail and labeling.f. Floor plan drawings showing the general location of all controlledequipment and devices used for sensing and control.g. Provide panel schedule showing location, systems served and pointcount.h. Label each device with setting or adjustable range of control. Indicateall wiring, clearly, differentiating between factory and field installedwiring.2. Manufacturers Data: Provide manufacturers literature and data for allcomponents including the following:a. A wiring diagram for each type of input device and each type of outputdevice including controllers, modems, repeaters, etc. Diagram shallshow how the device is wired and powered, showing typical connectionsat the digital controllers and each power supply, as well as the deviceitself. Show for all field connected devices, including but not limited to,control relays, motor starters, electric or electronic actuators, andtemperature pressure, flow and humidity sensors and transmitters.b. Control air supply components, and sizing computations forcompressors, receivers and main air piping.3. Submit Manufacturers Data including:a. Model numberb. Pressure/temperature ratingsc. CapacityDIRECT DIGITAL CONTROL SYSTEMS159723