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Orange County West Campus Office Building -HVAC <br />PDC Project 23020 BAS DIRECT DIGITAL CONTROL <br />SYSTEM 23 09 02 - 3 <br />A.The design of the BMS shall support networking of operator workstation and Building Controllers. <br />The network architecture shall consist of two levels,an Ethernet based primary network for all <br />operator workstations,servers,and primary DDC controllers along with secondary Floor Level <br />Networks (FLN)for terminal equipment application specific controllers. <br />B.Data Communications Protocol:Panel Level (BLN)communication must be BACnet compliant <br />(AHRAE 135). <br />C.Operator Workstation Communication: <br />1.The existing central database for Orange County will remain in the same facilities location. <br />The system graphics will be updated to monitor new equipment installed in this project.This <br />will provide consistency throughout all system workstations. <br />D.Primary Network -Panel to Panel Communication: <br />1.All Building Controllers shall directly reside on the primary Ethernet network such that <br />communications may be executed directly between Building Controllers,directly between <br />server and Building Controllers on a peer-to-peer basis. <br />2.Systems that operate via polled response or other types of protocols that rely on a central <br />processor,file server,or similar device to manage panel-to-panel or device-to-device <br />communications shall not be acceptable. <br />3.All operator interfaces shall have the ability to access all point status and application report <br />data or execute control functions for any and all other devices. Access to data shall be based <br />upon logical identification of building equipment. No hardware or software limits shall be <br />imposed on the number of devices with global access to the network data. <br />2.03 BUILDING CONTROLLER SOFTWARE <br />A.General <br />1.Furnish the following applications software to form a complete operating system for building <br />and energy management as described in this specification. <br />2.The software programs specified in this Section shall be provided as an integral part of <br />Building Controllers and shall not be dependent upon any higher level computer or another <br />controller for execution. <br />3.All points,panels and programs shall be identified by a 30 character name. All points shall <br />also be identified by a 16 character point descriptor. The same names shall be displayed at <br />both Building Controller and the Operator Interface. <br />4.All digital points shall have a user defined two-state status indication with 8 characters <br />minimum (e.g.Summer,Enabled,Disabled,Abnormal). <br />5.Building Controllers shall have the ability to perform energy management routines including <br />but not limited to time of day scheduling,calendar-based scheduling,holiday scheduling, <br />temporary schedule overrides,start stop time optimization,automatic daylight savings time <br />switch over,night setback control,enthalpy switch over,peak demand limiting,temperature- <br />compensated duty cycling,heating /cooling interlock,supply temperature reset,priority load <br />shedding,and power failure restart. <br />6.The Building Controllers shall have the ability to perform the following pre tested control <br />algorithms: <br />a.Two position control <br />b.Proportional control <br />c.Proportional plus integral control <br />d.Proportional,integral,plus derivative control <br />e.Automatic tuning of control loops <br />f.Model-Free Adaptive Control <br />7.Each controller shall be provided with an interactive HELP function to assist operators using <br />POTs and remote connected operators. <br />B.User Defined Control Applications <br />1.Controllers shall be able to execute custom,job-specific processes defined by the user,to <br />automatically perform calculations and special control routines. <br />Docusign Envelope ID: 8DED1454-68D2-4E36-9FC6-E56FF2124E5D