SECTION 25 0000



SECTION 25 1300BUILDING AUTOMATION SYSTEM CONTROLLERSGENERALSUMMARY Section provides requirements for acceptable types of controllers running the Niagara Framework and acceptable BACnet compliant controllers.DEFINITIONSControllerIntelligent, stand-alone, programmable Direct Digital Control device used in a Building Automation System (BAS) to control building equipment and systems.Dry-Type ContactContact closure without an electrical output (switch).FurnishTo supply and deliver to the project site, ready to be install.InstallTo place in position for service or use.MECA Major Equipment Controller (MEC) is used to control large building mechanical systems such as chilled water, heating hot water, and air distribution.Niagara ControllerController running the Niagara Framework.Niagara FrameworkSoftware platform developed by Tridium to integrate and control diverse systems, equipment, devices, and components real-time via local network or internet regardless of manufacturer or protocol. OhmUnit of electrical resistance.ProvideTo furnish and install, complete, ready for use.Stand-AloneTo operate or control without the need for higher level communications.TECA Terminal Equipment Controller (TEC) serves terminal equipment such as Variable Air Volume (VAV) boxes, fan powered terminals, and other miscellaneous equipment.TriacHigh-speed solid state three terminal device that can switch and control alternating current power in both directions of the sinusoidal waveform.SYSTEM DESCRIPTIONControllersControllers shall consist of a combination of MECs and TECs to satisfy design and performance requirements.Controllers shall perform monitoring, control, energy optimization, and other requirements indicated on project documents.Controllers shall use real-time digital control microprocessor.Each controller shall be capable of complete operation as an independent unit within the Building Automation System (BAS) distributed network.Controller ClassificationMajor Equipment Controller (MEC)Modular, Internet Protocol (IP)-based controller with network management and web-serving capability remotely programmable by Tridium Niagara 4 Supervisor. Tridium Niagara installations require a controller running the Niagara Framework with a Niagara Compatibility Statement (NiCS) supporting vendor-agnostic interoperability.BACnet installations require a native BACnet controller listed by the BACnet Testing Laboratory (BTL) as a BACnet Building Controller (B-BC) supported by a Protocol Implementation Conformance Statement (PICS). Primary function is control and optimization of major building mechanical systems such as: Chilled water systems.Hot water systems.Air handling systems.FeaturesNetwork management.Data logging.Scheduling.Alarming.Trending.Standalone facility wide execution of control strategies and sequences.The MEC shall be able to execute custom, job-specific processes defined by the user, to automatically perform calculations and special control routines.The MEC will support firmware upgrades without the need to replace hardware.MEC shall control only one Air Handling Unit (AHU) and control terminal equipment for only one AHU. Control of multiple AHUs, or control of terminal equipment from multiple AHUs by one MEC is not authorized.Terminal Equipment ControllerFully programmable or factory programmed, Ethernet or EIA-485 based controller with on-board input/output (IO) and point expansion capability programmable by Tridium Niagara 4 Supervisor. Tridium Niagara installations require a controller running the Niagara Framework compatible with Niagara 4.BACnet installations require a MS/TP compliant, native BACnet controller listed by the BACnet Testing Laboratory (BTL) as a BACnet Application Specific Controller (B-ASC) or a BACnet Advanced Application Controller (B-AAC) each with a supporting PICS.Primary function is monitor and control of a single piece of terminal equipment such as:Variable Air Volume (VAV) units.Laboratory Controllers.Fan Coil Units.Unit Ventilators.Lighting Panels.Pumps.Fans.Remote Dampers.Other miscellaneous equipment.FeaturesStand-alone Proportional Integral Derivative (PID) control.Ability to execute standalone control sequences in project documents.Indefinite storage of setpoints, flow limits, and occupancy schedules in non-volatile memory. TECs shall control terminal equipment on one floor only. Multi-floor control of VAV units is not authorized.SUBMITTALSRefer to section 25 0000.QUALITY ASSURANCERefer to section 25 0000.WARRANTYRefer to section 25 0000.PRODUCTSGENERALCommunicationController shall be capable of communication with all other controllers on the same network and able to communicate globally across all networks through dynamic routing and switching.Refer to Section 25 1100 for networking requirements.Operator InterfaceController shall be equipped with a service communication port for connection to a portable operator’s workstation.ServiceabilityController shall be equipped with LEDs to visually indicate controller power is on, communication fault or failure exists, and controller is sending and receiving signals to the network. Wiring and cable connection shall be made to be field removable such as modular terminal strip or termination cards connected by ribbon cable.Controller shall maintain BIOS and programming information in the event of power loss for a minimum of 72 hours.SoftwareSoftware applications shall reside and operate in the controller. Editing of application shall occur at the operator workstations.IO points shall be identified by point name and point descriptor. BACnet IO points shall be identified by object description, object ID and device ID. Same names shall be used at operator workstations.Controllers shall be configured to use stored default values to ensure fail-safe operation. Default values shall be used upon failure of a connected input instrument or loss of communication of a global point value.EnvironmentController shall be rated for operation from 32 to 120 deg F.Power and Noise ImmunityController shall operate at 90 to 110 percent of nominal voltage rating and shall perform an orderly shutdown below 80 percent of nominal voltage.Operation shall be protected against electrical noise of 5 to 120 Hz and from keyed radios with up to 5 W of power located within 36 inches (900 mm) of enclosure.Input and Output Point InterfaceAnalog Inputs (AI)AIs shall include monitoring of low-voltage, current, and resistance signals from thermistor and Resistance Temperature Detector (RTD) sensors.AIs shall be compatible with, and field configurable to, sensor and transmitters installed.Controller AIs shall perform analog-to-digital conversion with a minimum resolution of 8 bits or better to comply with accuracy requirements indicated.Signal conditioning including transient rejection shall be provided for each AI.Inputs shall be capable of being individually calibrated for zero and span.Incorporate common-mode noise rejection of at least 50 decibel (dB) from zero to 100 hertz (Hz) for differential inputs, and normal-mode noise rejection of at least 20 dB at 60 Hz from a source impedance of 10000 ohms.Analog Outputs (AO)Controller AOs shall perform analog-to-digital conversion with a minimum resolution of 8 bits or better to comply with accuracy requirements indicated.Output shall include low-voltage and current signals as required to include proper control of output device.Outputs shall be capable of being individually calibrated for zero and span.Binary Inputs (BI)Controller BIs shall accept contact closures and shall ignore transients of less than 5 milliseconds duration.Isolation and protection against an applied steady-state voltage of up to 180-Volts Alternating Current (VAC) peak.BIs shall include a wetting current of at least 12 milliamps (mA) to be compatible with commonly available control devices and shall be protected against effects of contact bounce and noise.BIs shall sense "dry contact" closure without external power (other than that provided by the controller) being applied.Pulse accumulation input points shall comply with all requirements of BIs and accept up to 10 pulses per second for pulse accumulation. Buffer shall be provided to totalize pulses. Pulse accumulator shall accept rates of at least 20 pulses per second. The totalized value shall be reset to zero on operator's command.Binary Outputs (BO)Controller BOs shall include relay contact closures or triac outputs for momentary and maintained operation of output devices.Relay contact closures shall have a minimum duration of 0.1 second. Relays shall include at least 180 volts of isolation. Electromagnetic interference suppression shall be provided on all output lines to limit transients to non- damaging levels. Minimum contact rating shall be 1 amp at 24-VAC.Triac outputs shall include at least 180 volts of isolation. Minimum contact rating shall be 1 amp at 24-VAC.BOs shall include for two-state operation or a pulsed low-voltage signal for pulse-width modulation control.BOs shall be selectable for either normally open or normally closed operation.Include tristate outputs (two coordinated BOs) for control of three-point floating-type electronic actuators without feedback.Limit use of three-point floating devices to air terminal unit control applications. Control algorithms shall operate actuator to one end of its stroke once every 24 hours for verification of operator tracking.Spare Processing Capacity:RAM, PROM, or EEPROM spare processing memory shall be 75 percent.Spare IO Capacity: AIs: Two.AOs: Two.BIs: Two.BOs: Two.Power and Communication RecoveryCommunicationUpon communications outage, all attached controllers and equipment shall continue to operate based on last known command.PowerUpon power loss, automatic shutdown with no programming or memory loss.Upon power restoration, automatic restart with automatic equipment start up and execution of programmed features and control algorithms.MAJOR EQUIPMENT CONTROLLER Minimum RequirementsHardwareProgrammable and expandable IO.Isolated RS-485 serial port connection.10/100 Mbps Ethernet port.Real-time clock.Firmware upgradable over-the-network.24-VAC supply.SoftwareMECs shall be fully programmable within any vendor’s version of the Niagara Workbench. MECs requiring a specific version of Workbench, or additional software to be programmed are not authorized.Programmable features Time-of-day scheduling.Calendar-based scheduling.Holiday scheduling.Temporary schedule overrides.Start-Stop Time Optimization.Automatic Daylight Savings Time Switch-over.Night setback control.Enthalpy switch-over (economizer).Peak demand limiting.Basis-of-Design Product: Java Application Control Engine (JACE) 8000.JACEs shall be provided with no connectivity restrictions regardless of brand. The NiCS for station and tool shall be:Station Compatibility INALL or *Station Compatibility OUTALL or *Tool Compatibility INALL or *Tool Compatibility OUTALL or *No brand specific software, utilities, or application shall be installed on a JACE.TERMINAL EQUIPMENT CONTROLLERMinimum RequirementsHardware:Capable of IO expansion.Isolated RS-485 serial port.10/100 Mbps Ethernet port.Real-time clock.IO Compatibility0-10 or 0-12 VDC.4-20 milliamps.0-1000 ohm resistive, or Type-3 10K ohm thermistor.Dry-type contacts (no grounds or no voltage) of either normally open (NO) or normally closed (NC) configuration. SoftwareTECs shall be programmable within any vendor’s version of the Niagara Workbench. TECs requiring a specific version of Workbench, or additional software to be programmed are prohibited.TECs shall not be limited in their ability to communicate with a specific brand of Niagara framework JACE.Programmable features. Calendar functions.Scheduling.Trending.Alarm monitoring and routing.Time synchronization.Application specific and custom control algorithms.Basis-of-Design Product: JENEsys Edge 414.Niagara Edge 10.Vykon Edge Controller.BACNET CONTROLLERBACnet controllers, when approved for use, will meet the additional requirements:MS/TP baud rate of 76.8 Kbps or higher.Selectable biasing resistance.PICS provided by manufacturer. Controllers without a manufactured provided PICS are not authorized.EXECUTIONGENERAL INSTALLATIONProvide controller and point expansion modules sized for point count to accommodate project design.Provide controller for each major system and for each piece of terminal equipment to ensure stand-alone capability.Provide wiring, cabling, connectors, jumpers, terminals, and other hardware for complete system.Mount in accordance with Section 25 1423.Configure IP based controllers to utilize static IP addresses. Request IP addresses through the DMS Project Manager.Utilize primary Ethernet port to connect controller to network drop or the nearest Access Switch.Coordinate power requirements with Mechanical Specifications and DMS Design and Construction Guidelines.Provide DMS with all controller login credentials.MAJOR EQUIPMENT CONTROLLER INSTALLATIONPlatform CredentialsChange factory platform default credentials to:New username: JACEAdmin New password: DMS123jaceRuntime ProfilesEnable Runtime profiles to support the following:Web client browser access (UX).Brower Web Workbench (WB).Station Installation Install station template provided by DMS:Station name shall be the abbreviated building name designated in Section 25 1200.Enable AUTO-START for the station to start every time the JACE is rebooted.Copy all files in the station directory and its subdirectories.Secondary Ethernet PortConfigure secondary Ethernet port on a JACE with static IP address.Engine Watchdog PolicySet timeout to 15 minutes.Enable Restart on Failure and Auto-Start.Additional DefaultsPort and security defaults shall remain unchanged.TERMINAL EQUIPMENT CONTROLLER INSTALLATIONDaisy chaining:Utilize the second Ethernet port to daisy chain TECs.Daisy chain TECs supporting the same equipment or system to minimize network connections to an Ethernet switch.Limit the number of TECs in daisy chain configuration to 32, or the maximum number supported by the specific controller brand, whichever is less. Do not connect TECs in a daisy chain configuration to the secondary Ethernet port of a JACE. Doing so requires use of DHCP addressing which is prohibited.BACNET INSTALLATIONSBACnet controllers, when approved for use, will meet the additional requirements:All controllers on a MS/TP network will be configured to utilize the same baud rate.Request Device Instance numbers through the DMS Project Manager.END OF SECTION ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download