BACnet Objects
Description | Object | Object Type | Pre-loaded Value |
---|---|---|---|
Supply air VAV duct area | VavSuDuctArea [DUCT AREA] | ACnfVal | 0.545 ft2 (0.05 m2) |
Supply air VAV duct shape | VavSuDuctShape | MCnfVal | Round |
Supply air VAV dimension A | VavSuDmsnA | ACnfVal | 10.0 in. |
Supply air VAV dimension B | VavSuDmsnB | ACnfVal | 10.0 in. |
Supply air VAV flow coefficient | VavSuFlCoef | ACnfVal | 0.63 (0.63) |
Nominal air volume flow | AirFlNom | ACnfVal | 1200 ft3/min (600 l/s) |
Supply air VAV maximum air volume flow for cooling | VavSuAirFlMaxC [CLG FLOW MAX] | ACnfVal | 1200 ft3/min (600 l/s) |
Supply air VAV maximum air volume flow for ventilation | VavSuAflMaxVnt [VENT FLOW MAX] | ACnfVal | 1200 ft3/m (600 l/s) |
Supply air VAV ventilation request | VavSuVntReq [VAV VENT REQ] | ACalcVal | 0% |
Supply air VAV cooling request | VavSuCReq [VAV CLG REQ] | ACalcVal | 0% |
Supply air VAV setpoint for relative air volume flow | VavSuSpAflRel [FLOW REL SP] | ACalcVal | 0% |
Supply air VAV setpoint for air volume flow | VavSuSpAirFl [AIR VOL SP 3] | APrcVal | 0 ft3/m (0 l/s) |
Supply air VAV effective air velocity | VavSuAirVEff [AIR VEL EFF] | ACalcVal | 0 ft3/m (0 l/s) |
Supply air VAV air volume flow deviation | VavSuAirFlDvn [AIR VOL. DIFF] | ACalcVal | 0% |
Supply air VAV smoke control air volume flow setpoint | VavSuSpAflSmk | ACnfVal | 800 ft3/m (400 l/s) |
Supply air VAV minimum air volume flow for cooling | VavSuAirFlMinC [CLG FLOW MIN] | ACnfVal | 0.0 ft3/min (0.0 l/s) |
Supply air VAV maximum air volume flow for heating | VavSuAirFlMaxH [HTG FLOW MAX] | ACnfVal | 150 ft3/min (75 l/s) |
Supply air VAV minimum air volume flow for heating | VavSuAirFlMinH [HTG FLOW MIN] | ACnfVal | 150 ft3/min (75 l/s) |
Supply air VAV minimum air volume flow for ventilation | VavSuAflMinVnt [VENT FLOW MIN] | ACnfVal | 0.0 ft3/min |
Parameters
Description | Parameter | Pre-loaded Value |
---|---|---|
Switch-on point for differential pressure | SwiOnPtDiffP | 4% |
Hysteresis for differential pressure | HysDiffP | 2% |
Setpoint selector for extract air VAV box | SpSelVavEx | Supply airflow |
Switch-on point for air volume flow state | SwiOnAirFlSta | 4% |
Hysteresis for air volume flow state | HysAirFlSta | 2% |
Enable monitoring for fan state → Must = 0:No for parallel fan powered box applications; must = 1:Yes for series fan powered box applications. | EnMonFanSta | No |
Enable monitoring for missing air volume flow 0:No | EnMonNoAirFl | Yes |