Carrier VVT Zone Installation And Startup Manual

Contents

Carrier VVT Zone Installation And Startup Manual Manual pdf 56 page image

Appendix A: VVT Zone Controller Points/Properties52 VVT Zone ControllerUnit Configurationi-Vu / Field Assistant:Navigation:BACview:Properties > Equipment > Configuration > Unit ConfigurationHOME > CONFIG > UNITPoint Name/Description Default/RangeHeat Enable D:– Enables the reheat function.R:EnableDisable/EnableParallel Fan Heat On Delay – The delay in reheat coming on after the zone has aheating demand. If the Term Type is Parallel, this allows the fan time to use plenum airto heat the space prior to bringing mechanical reheat. If the Term Type is Single DuctD:,we recommend that you set this value to 1 minute.R:15 minutes0 to 30 minutesFan Off Delay D:– Fan-type terminals only. The amount of time the terminal fan continuesto operate after a heating demand is satisfied. R:120 seconds0 to 180 secMaximum Heating SAT D:– The maximum supply air temperature allowed while ductedheat is operating. Ducted type supplemental heat is controlled so that it will not exceedthis limit. R:105°F80 to 140°FDCV Max Vent Damper Pos D:– The maximum damper position that the IAQ function canoverride the damper to. When active, the damper modulates to the temperaturecontrol position or the IAQ override position, whichever is greater. R:70%0 to 100%Filter Service Alarm Timer – The amount of time a Parallel or Series fan will run beforegenerating a Filter AlarmD:. Set to 0 to disable the alarm. R:0 hr0 to 9999 hrPushbutton Override D:– Enables or disables the use of a pushbutton override from alocal space temperature sensor. R:EnableDisable/EnableSetpoint Adjust D:– Enables the setpoint adjustment slider on the SPPL space sensor.R:EnableDisable/EnableSetpoint Adjustment Range D:- The maximum amount that a user can adjust thesetpoint on the local SPT sensor. R:2°F0 to 5°FHeating Lockout Temperature D:– Supplemental reheat is disabled if outside airtemperature exceeds this value. Supplemental reheat is enabled when the outside airtemperature falls below a fixed hysteresis of 2°F. This function is active only if there isa valid network outside air temperature.R:70°F-60 to 150°FPower Fail Restart Delay D:– How long the controller delays normal operation after thepower is restored. This is typically used to prevent excessive demand when recoveringfrom a power failure. Applies to Series Fan start delay when system mode transitionsfrom unoccupied to occupied. A delay of no greater than 120 seconds is recommendedfor Series Fan applications.R:60 seconds60 to 600 secondsOccupancy Schedules – If Enabled, the controller stores and follows a schedule sentover the network or programmed locally through a BACview or Field Assistant. IfDisabled, the controller occupancy is controlled from the BAS On/Off or System OccupancyD:network point.R:EnableDisable/EnableT55 Override Duration – The amount of time that the controller runs in the occupiedmode when a user presses the T55 sensor's override button for 1 to 10 seconds.Pushbutton Override must be set to EnableD:. R:1 hr1 to 4 hr