Carrier VVT 33ZC Installation, Start-up And Configuration Instructions

Contents

15System Pressure — This variable displays the static systempressure through an integrated pressure sensor in increments of0.1 in. wg. When Bypass Commissioning and Pressure SensorCal are Enabled, the user may force this value to the correctreading of the System Pressure as measured with calibrated testequipment. From the forced value, the bypass controller calcu-lates a calibration multiplier that will always be applied to theSystem Pressure sensor reading. Once the multiplier is calcu-lated, the force is removed and the multiplier is applied to theSystem Pressure sensor reading.System Pressure: Display Units in. wgDefault Value 0.00Display Range 0.00 to 2.00Forcible YesSystem Pressure Setpt — This variable displays the supply airstatic pressure set point that is to be maintained by the bypasscontroller. The bypass controller determines the damper posi-tion by comparing the system static pressure to this set point.When the user forces the System Pressure Setpt from this table,the bypass controller automatically updates the SystemPressure Setpt configuration value in the Pressure Setpoint Ser-vice Configuration Table.System PressureSetpoint: Display Units in. wgDefault Value 0.50Display Range 0.10 to 1.80Forcible YesDamper Cal Alarm — This variable displays Alarm if thedamper calibration process failed because there was an errorduring the closed or open position calibration of the damper.Normal is displayed when a successful damper calibrationtakes place.DamperCal Alarm: Default Value NormalDisplay Range Normal/AlarmForcible NoPress Sensr Cal Alarm — This variable displays Alarm if thepressure transducer zero calibration process failed because thepressure sensor voltage did not decrease to within the zeropressure tolerance (1.0 ± 0.1 vdc). Normal will be displayedwhen a successful pressure transducer zero calibration takesplace.Press SensrCal Alarm: Default Value NormalDisplay Range Normal/AlarmForcible NoBYPASS CONTROLLER SYSTEM PILOT DEFAULTMAINTENANCE TABLE — See Table 8 for Bypass Con-troller System Pilot Default Maintenance (SP_MAINT).Duct Temperature — This variable displays the duct tempera-ture at the bypass damper through a 10K thermistor with ameasurement range from –40 to 245 F in 0.1º F increments.DuctTemperature: Display Units F (C)Default Value –40.0Display Range –40.0 to 245.0Forcible YesDamper Position — This variable displays the damper posi-tion percent range of rotation determined by the damper feed-back potentiometer. The bypass controller is designed for useon dampers with a range of rotation up to 90 degrees.DamperPosition: Display Units % openDefault Value 0Display Range 0 to 100Forcible NoSystem Pressure — This variable displays the static systempressure through an integrated pressure sensor in increments of0.1 in. wg.System Pressure: Display Units in. wgDefault Value 0.00Display Range 0.00 to 2.00Forcible NoSystem Mode — This variable displays the master zone con-troller’s system mode as the bypass controller’s system modeexcept when the bypass controller is in its commissioningmode or the network communication fails. In bypass commis-sioning mode, the system mode will display BPCOMMIS to in-dicate the bypass controller is in its own commissioning mode.If the network communication between the bypass controllerand the Linkage Coordinator zone controller fails, the systemmode will display LOCAL.System Mode: Display Units ASCIIDisplay Range HEATING, COOLING,FREE COOL,PRESSURE, EVAC,ZONE_BAL, OFF,BPCOMMIS, LOCALForcible NoConfiguration Tables — The bypass controller con-tains the following configuration tables: Alarm Configuration(ALMCONF), Bypass Controller Configuration (BP_SERV),Device Configuration (BYPASS), Language Configuration(LNGCONF), Duct Sensor Configuration (SEN_SERV), andSet Point Configuration (SETPOINT).ALARM CONFIGURATION TABLE — The Alarm Con-figuration Table (ALMCONF) contains decisions used to con-figure the alarm settings for the zone controller. This includesrealarm time and routing of alarms. See Table 9.Table 8 — System Pilot Default MaintenanceTable 9 — Alarm ConfigurationDESCRIPTION VALUE UNITS STATUS FORCE NAMEBypass ControllerDuct Temperature 73.8 dF DUCT_TMPDamper Position 0 %OPEN DMP_POSSystem Pressure 0.00 in H2O SP_SENSRSystem Mode BPCOMMIS SYS_MODEDESCRIPTION VALUE UNITS NAMEAlarm Routing Control 11010000 ROUTINGRe-alarm Time 10 min RETIME