TEC Zoning Control System for Stand-Alone and BACnet® MS/TP ...

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Table 1: TEC Zoning Control System Related Documentation (Part 2 of 2)For Information On See Document LIT or Part NumberMounting and Wiring a TEC-7-PIROccupancy Sensor Zone ControllerCoverParticular Options Specified in theBACnet Standard and Implemented inthe TEC2647Z-2 or TEC2647Z-2+PIRZone ControllerParticular Options Specified in theBACnet Standard and Implemented inthe TEC2664Z-2 Rooftop ControllerProduct OverviewPIR Accessory Cover InstallationInstructionsZoning System TEC2647Z-2 andTEC2647Z-2+PIR Zone ControllersProtocol Implementation ConformanceStatement Technical BulletinZoning System TEC2664Z-2 RooftopController Protocol ImplementationConformance Statement Technical BulletinPart No. 24-9890-870LIT-12011399LIT-12011404RooftopControllerMS/TPBus•Rooftop UnitSupplyReturnBypassDamperMixed AirflowMS/TPBusZoneControllerZoneDamperZoneControllerBypassAirflow• •ReturnAirflowZoneDamperZoneControllerZone• DamperRS485 End-of-Line Terminator(MS-BACEOL-0)Figure 1: Typical TEC Zoning Control System Installed on a Single MS/TP BusThe TEC Zoning Control System features a fully scalable network architectureusing BACnet MS/TP communication capability that operates with a supervisorycontroller, or it can operate as a stand-alone system. This cost-effective zoningcontrol system provides efficient space temperature control for constant volume,pressure-dependent systems in multi-zone heating and cooling applications.The TEC Zoning Control System uses standard BACnet objects for automaticself-binding zone-controller-to-rooftop-controller configuration, communicatingin a peer-to-peer manner. Pre-configured sequences reduce the need forprogramming and eliminate flash downloading. Plain text menus, backlit display,and multiple interface keys make setup and operation quick and easy.FIG:typcl_znng_systm6TEC Zoning Control System for Stand-Alone and BACnet® MS/TP Networked ApplicationsTechnical Bulletin
Figure 1 illustrates a typical TEC Zoning Control System installed on asingle MS/TP Bus. This installation consists of multiple TEC2647Z-2 orTEC2647Z-2+PIR (onboard occupancy sensor) Zone Controllers, each controllinga single zone damper; and a TEC2664Z-2 Rooftop Controller controlling a rooftopunit. Optionally, the MS/TP Bus can be wired to a supervisory controller toprovide centralized monitoring and control of the system.IMPORTANT: The TEC Zoning Control System is intended to provide aninput to equipment under normal operating conditions. Where failure ormalfunction of the zoning control system could lead to personal injury orproperty damage to the controlled equipment or other property, additionalprecautions must be designed into the zoning control system. Incorporate andmaintain other devices, such as supervisory or alarm systems or safety or limitcontrols, intended to warn of or protect against failure or malfunction of thezoning control system.System Overview and ArchitectureThe TEC Zoning Control System is comprised of two terminal equipmentcontroller types, including:• TEC2647Z-2 or TEC2647Z-2+PIR Zone Controller• TEC2664Z-2 Rooftop ControllerCombined, this system delivers a simple yet efficient way to operate and controlpressure-dependent Variable Air Volume (VAV) zones with rooftop units.System control implementation is based on demand. The system is designed towork with small- to medium-sized staged heating and cooling rooftop unitequipment (2 to 20 tons typical).A local BACnet MS/TP Bus between all devices provides effectivecommunication and smooth data exchange of all required information between thezone controllers and the rooftop controllers for proper system operation.Integration into any BACnet supervision system is seamless.The zone controller and rooftop controller feature a backlit Liquid Crystal Display(LCD) with dedicated function menu buttons for simple user operation. Accuratetemperature control is achieved through a unique, Proportional-Integral (PI)time-proportioning algorithm that virtually eliminates temperature offsetassociated with traditional, differential-based thermostats.The zone controller is specifically designed for local pressure-dependent VAVzone control within Johnson Controls zoning system product family. The primarydamper output uses an off-the-shelf, standard 0 to 10 VDC VAV actuator forcontrol.TEC Zoning Control System for Stand-Alone and BACnet® MS/TP Networked ApplicationsTechnical Bulletin7
Page 1 and 2: TEC Zoning Control System for Stand
Page 3 and 4: Sequence of Manual Status Display S
Page 5: TEC Zoning Control System for Stand
Page 9 and 10: Example: A typical installation may
Page 11 and 12: Bypass Damper Design RulesA bypass
Page 13 and 14: The zone controller automatically s
Page 15 and 16: Main User MenuUse the Main User Men
Page 17 and 18: Table 2: TEC2647Z-2 and TEC2647Z-2+
Page 23 and 24: Table 3: System Mode Calculation wi
Page 25 and 26: Table 6: Lockout Level Function Det
Page 27 and 28: - It is possible for an internal zo
Page 29 and 30: Table 9: Maximum Heat Flow Adjustme
Page 31 and 32: Note that 0 to 100% is directly con
Page 33 and 34: Table 12: TEC2664Z-2 Rooftop Contro
Page 35 and 36: Table 12: TEC2664Z-2 Rooftop Contro
Page 37 and 38: The rooftop controller calculates t
Page 39 and 40: Rooftop Controller Heating and Cool
Page 41 and 42: Typically, the number of rooftop co
Page 43 and 44: PIR Occupancy Sensor LogicThe PIR o
Page 45 and 46: AO2HeatingSetpointCoolingSetpointAO
Page 47 and 48: HeatingSetpointCoolingSetpointB05AO
Page 49 and 50: The system mode can be set to eithe
Page 51 and 52: 1. The outdoor temperature displays
Page 53 and 54: FIG:byps_dmprSequence of OperationF
Page 55 and 56: • Properly set the Min Pos, Max P
Page 57 and 58:
Table 19: Rooftop Controller Commis
Page 59 and 60:
Table 22: Zone Controller Number (
Page 61 and 62:
Table 23: TEC2647Z-2 and TEC2647Z-2
Page 63 and 64:
Table 24: TEC2664Z-2 Rooftop Contro
Page 65:
Table 24: TEC2664Z-2 Rooftop Contro
Page 69 and 70:
• Ground the circuit if required.
Page 71 and 72:
Table 25: Troubleshooting Details 1
Page 73 and 74:
Table 25: Troubleshooting Details 1
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