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Commissioning Instructions

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Central Functions
Supply Chain Air 11
5
12 | 21
Restricted
A6V12006922
Description
BACnet Name
(Abbreviated Name)
Type
Comment
Direction of Data Flow
Command for changeover
mode air
Note: Must select
“Changeover condition
determin. for air” = ACTIVE in
ABTSite Central Function
configuration.
ChoAirModCmd
(CHVR M AIR)
MPrcVal
Multistate value that deter-
mines the changeover
condition (Heating,
Cooling, Neither, Neutral).
This acts as a global
command to command Vav
Supply dampers for
warmup from DesigoCC.
If Vav supply dampers
ONLY provide Cooling,
make sure this BACNet
point is overridden to
always be set for Cooling.
To Terminals
Changeover function for
supply chain air number of
cooling demand
ChoAirNumCDmd
(CHVR AIRCQ)
ACalcVal
The evaluated number of
segments requiring cooling.
From Terminals
Changeover function for
supply chain air number of
heating demand
ChoAirNumHDmd
(CHVR AIRHQ)
ACalcVal
The evaluated number of
segments requiring
heating.
From Terminals
Evaluation of max. cooling
demand for Supply Air
Temperature
EvlTsuCDmdMax
(CLG DMD EVA)
ACalcVal
Average of the top 10
terminal cooling demands.
Used to calculate SAT
setpoint.
From Terminals
Evaluation of the number of
cooling demands for Supply
Air Temperature
EvlNumTSuCDmd
(CHG DMD QTY)
ACalcVal
Total number of terminal
units with their Changeover
in “Cooling”.
From Terminals
Evaluation of max. heat
demand for Supply Air
Temperature
EvlTsuHDmdMax
(HTG DMD EVA)
ACalcVal
Average of the top 10
terminal heating demands.
Used to calculate SAT
setpoint.
From Terminals
Evaluation of the number of
heating demands for Supply
Air Temperature
EvlNumTSuHDmd
(HTG DMD QTY)
ACalcVal
Total number of terminal
units with their Changeover
in “Heating”.
From Terminals
Setpoint for high Supply Air
Temperature
SpHiTSu
(AHU TEMP HI)
APrcVal
The high setpoint sent to
the AHU to determine the
“warm” SAT.
To AHU
Setpoint for low Supply Air
Temperature
SpLoTSu
(AHU TEMP LO)
APrcVal
The low setpoint sent to
the AHU to determine the
“cool” SAT.
To AHU