Carrier VVT 33ZCVVTZC-01 Installation, Start-up And Configuration Instructions

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Carrier VVT 33ZCVVTZC-01 Installation, Start-up And Configuration Instructions Manual pdf 30 page image

30Table 5 — Alarm Configuration TableUNOCCUPIED SPACE TEMPERATURE LOW LIMIT— This configuration defines the lowest temperature that theunoccupied space can be before an alarm is generated.Unoccupied SpaceTemperatureLow Limit: Units F (C)Range 0 to 255 FDefault Value 40UNOCCUPIED SPACE TEMPERATURE HIGH LIMIT— This configuration defines the highest temperature that theunoccupied space can be before an alarm is generated.Unoccupied SpaceTemperatureHigh Limit: Units F (C)Range 0 to 255 FDefault Value 99DEMAND CONTROL VENTILATION LOW LIMIT — Thisconfiguration defines the lowest CO2 level reading that theoccupied space can have before an alarm is generated.Demand Control VentilationLow Limit: Units ppmRange 0 to 5000Default Value 250DEMAND CONTROL VENTILATION HIGH LIMIT — Thisconfiguration defines the highest CO2 level reading that theoccupied space can have before an alarm is generated.Demand Control VentilationHigh Limit: Units ppmRange 0 to 5000Default Value 1200Terminal Service Configuration Table — The Ter-minal Service Configuration Table (CONFIG) containsdecisions used to configure the main settings for the zonecontroller. This includes Terminal Type, Primary Inlet Size,and gains for the damper and heating PID loops. Decisionsregarding auxiliary heat are made in this table and up to10 temperature readings can be configured for room tempera-ture sensor averaging. SPT and SAT sensor trimming are donehere as well. See Table 6.TERMINAL TYPE — This configuration is used to indicatethe terminal type that the zone controller is installed on. A 1 isfor Single Duct terminals, a 2 is for Parallel Fan terminals, anda 3 is for Series Fan terminals.Terminal Type: Range 1 to 3Default Value 1PRIMARY INLET SIZE — The Primary Inlet Size configu-ration is used to input the inlet diameter of the terminal if usedwith a round inlet. The Inlet Area configuration is used for ovalor rectangular inlets. The zone controller will use the larger val-ue for demand weighting if both values are configured. If bothinlet size and inlet area are zero, then the damper will not be in-cluded in the average demand calculations.NOTE: Carrier sizes 12, 14, and 16 are oval.Primary Inlet Size(Inlet Diameter): Units InchesRange 0.0 to 24.0Default Value 6.0INLET AREA — The Inlet Area configuration is used if the ter-minal has an oval or rectangular inlet. The Primary Inlet Sizeconfiguration is used for round inlets. The zone controller will usethe larger value for demand weighting if both values are config-ured. If both inlet size and inlet area are zero, then the damper willnot be included in the average demand calculations.Inlet Area: Units Square InchesRange 0.0 to 500.0Default Value 0.0DAMPER LOOP PARAMETERS — The loop gains andstart value define how the terminal will respond to deviations inmeasured temperature in order control to the damper position.The Proportional Gain is calculated each time the airflow iscompared to the active airflow set point. As the error from setpoint goes to zero, the proportional term will also go to zero.The Integral Gain is a running summation of all integralterms since the loop started. This has the effect of trimming offany offset from the set point which might occur, if only theproportional term existed. Normally a proportional loop withno integral term would require frequent adjustments of thestarting value to eliminate the offset as static pressure and otherconditions change.The derivative gain tends to nullify or accelerate the chang-es in the proportional gain depending on the size of the errorfrom the set point. This allows the damper to respond fasterand more efficiently to accurately maintain the space tempera-ture set points. The Start Value is the initial value that is thenmodified by the error terms of the PID calculation.Damper Loop ParametersProportional Gain:Range 00.0 to 99.9Default Value 10.0Integral Gain: Range 00.0 to 99.0Default Value 2.5Derivative Gain: Range 00.0Default Value 4.0Start Value: Units %Range 0 to 100Default Value 40CLOCKWISE ROTATION — This configuration is used todefine what effect a clockwise rotation of the actuator will haveon the damper. If the actuator rotates clockwise to closed posi-tion, the configuration should be set to Close. If the actuator ro-tates clockwise to open, the configuration should be set toopen. This configuration is used to change the rotation of theactuator so that the damper transducer calibration will workproperly. The actuator does not have to be re-installed nor anyswitches changed to reverse the action.ClockwiseRotation: Range Close/OpenDefault Value CloseDESCRIPTION VALUE UNITS NAMEAlarm ConfigurationRe-alarm Time 0 min RETIMEAlarm Routing 00000000 ROUTINGSPT Occupied Hysteresis 5.0 ^F SPTHYSUnoccupied SPTLow Limit 40.0 dF LOWLIMHigh Limit 99.0 dF HIGHLIMDemand Ctrl VentilationLow Limit 250.0 LOWLIMHigh Limit 1200.0 HIGHLIM1104→→