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

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B05AO2HeatingSetpointCoolingSetpointAO1FIG:cntrl_crv_10Figure 16: Zone Controller Set for Terminal Reheat on AO2 and Peripheral Heating on BO5(Rooftop Controller in Heating Mode)Stage2Stage2Stage1Stage1100%PI DemandStage 2Start/Stop(Approx.)PI Demand (Depends on Control Type Selected)Increase HeatingStage 1Start/Stop(Approx.)0%PI DemandStage 1Start/Stop(Approx.)Stage 2Start/Stop(Approx.)PI Demand (Depends on Control Type Selected)Increase Cooling100%PI DemandFIG:tw_stg_htng_tw_stg_clgFigure 17: Rooftop Controller Sequence of Operation forTwo-Stage Heating and Two-Stage Cooling48TEC Zoning Control System for Stand-Alone and BACnet® MS/TP Networked ApplicationsTechnical Bulletin
The system mode can be set to either Off or Auto. The Auto mode allows therooftop controller to determine, from the average PI demand (if a network isdetected) or from the return air sensor PI demands (if a network is not detected), ifthe rooftop unit is in heating mode or cooling mode.FIG:mn_usr_mnuFigure 18: Main User MenuSequence of Auto Status Display ScrollingThe TEC2664Z-2 Rooftop Controller features a two-line, eight-character statusdisplay. A low-level, backlight is always active, and can only be seen in the dark.When the rooftop controller is left unattended, an auto scroll status displayindicates the actual status of the system.TEC Zoning Control System for Stand-Alone and BACnet® MS/TP Networked ApplicationsTechnical Bulletin49
Page 1 and 2: TEC Zoning Control System for Stand
Page 3 and 4: Sequence of Manual Status Display S
Page 5 and 6: TEC Zoning Control System for Stand
Page 7 and 8: Figure 1 illustrates a typical TEC
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 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: HeatingSetpointCoolingSetpointB05AO
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 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

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

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