Application

Room Segment Functions
Device Control Functions HVAC
55
Siemens Industry, Inc.
Application Note
A6V11692042
Smart Infrastructure – Building Products
2019-04-01
Configuration
BACnet Objects
Description
Object
Object Type
Pre-loaded
Value
Supply air VAV duct area 1
Supply air VAV duct area 2
VavSuDuctArea1
VavSuDuctArea2
ACnfVal
0.349 ft
2
(0.0xx
m
2
)
Supply air VAV duct shape 1
Supply air VAV duct shape 2
VavSuDuctShape1
VavSuDuctShape2
MCnfVal
Round
Supply air VAV dimension A 1
Supply air VAV dimension A 2
VavSuDmsnA1
VavSuDmsnA2
ACnfVal
8.0 in.
Supply air VAV dimension B 1
Supply air VAV dimension B 2
VavSuDmsnB1
VavSuDmsnB2
ACnfVal
8.0 in.
Supply air VAV flow coefficient 1
Supply air VAV flow coefficient 2
VavSuFlCoef1
VavSuFlCoef2
ACnfVal
0.63 (0.63)
Nominal air volume flow 1
Nominal air volume flow 2
AirFlNom1
AirFlNom2
ACnfVal
100 ft
3
/min (50
l/s)
Supply air VAV maximum air volume flow for cooling
VavSuAirFlMaxC
[CLG FLOW MAX]
ACnfVal
1000 ft
3
/min
(500 l/s)
Supply air VAV maximum air volume flow for ventilation
VavSuAflMaxVnt
[VENT FLOW MAX]
ACnfVal
1200 ft
3
/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 1
Supply air VAV setpoint for relative air volume flow 2
VavSuSpAflRel1
VavSuSpAflRel2
[FLOW REL SP]
ACalcVal
0%
Supply air VAV setpoint for air volume flow 1
Supply air VAV setpoint for air volume flow 2
VavSuSpAirFl1
VavSuSpAirFl2
[AIR VOL SP]
AO
APrcVal
0 ft
3
/m (0 l/s)
Supply air VAV effective air velocity 1
Supply air VAV effective air velocity 2
VavSuAirVEff1
VavSuAirVEff2
[AIR VEL EFF]
ACalcVal
0 ft
3
/m (0 l/s)
Supply air VAV air volume flow deviation 1
Supply air VAV air volume flow deviation 2
VavSuAirFlDvn1
VavSuAirFlDvn2
[AIR VOL. DIFF]
ACalcVal
0%
Supply air VAV smoke control air volume flow setpoint
VavSuSpAflSmk
ACnfVal
800 ft
3
/m (400
l/s)
Supply air VAV minimum air volume flow for cooling
(can be set to zero and the ventilation flow required can be set per
occupancy mode in the VAV Ventilation Control [➙ 46].)
VavSuAirFlMinC
[CLG FLOW MIN]
ACnfVal
0.0 ft
3
/min (0.0
l/s)
Supply air VAV maximum air volume flow for heating
VavSuAirFlMaxH
[HTG FLOW MAX]
ACnfVal
150 ft
3
/min (75
l/s)
Supply air VAV minimum air volume flow for heating
(for units with heating elements and no fan, set the Heating
minimum flow to required value for heat transfer from the coils)
VavSuAirFlMinH
[HTG FLOW MIN]
ACnfVal
150 ft
3
/min (75
l/s)
Supply air VAV minimum air volume flow for ventilation
(can be set to zero and the ventilation configurations set per
occupancy mode set in VAV Ventilation Control [➙ 46])
VavSuAflMinVnt
[VENT FLOW MIN]
ACnfVal
0.0 ft
3
/min