Trane Tracer VV550 Installation, Operation And Maintenance Manual page 59

Active Minimum Flow Setpoint Selection Arbitration
The controller selects the active minimum flow setpoint based on the occupancy mode,
the use of reheat, and the control mode.
Ventilation reset may raise the active minimum flow setpoint when ventilation reset is
being performed at the system level.
and minimum ventilation requirements.
Table 38.Minimum airflow setpoints
Setpoint name
Cooling minimum
Heating minimum
Unit heating minimum
Cooling standby minimum
Heating standby minimum
Pressure dependent mode minimum
Ventilation minimum airflow setpoint
Note: Reported active minimum flow setpoint = Reported effective ventilation setpoint ÷ Communicated ventilation ratio limit.
Table 39.Space temperature control modes and minimum ventilation requirement
Mode
Occupied heat
Standby heat
Occupied cool
Standby cool
Off or stop
Construction
Unoccupied heat
Unoccupied cool
Morning warm-up
Pre-cool
Night purge
Maximum heat
Note: Ventilation flow control and flow tracking have no minimum ventilation requirements. Flow tracking does not use the active minimum
airflow setpoint.
CNT-SVX17G-EN
Table 38
Table 39
Rover field label
Minimum airflow
Minimum heating airflow
Minimum local heating airflow
Standby minimum airflow
Standby heating minimum air flow
Minimum position setpoint
Active minimum flow setpoint
Minimum ventilation requirement
Enforced
Enforced
Enforced
Enforced
No minimum ventilation requirement
Maximum heating airflow
No minimum ventilation requirement
No minimum ventilation requirement
No minimum ventilation requirement
No minimum ventilation requirement
No minimum ventilation requirement
Maximum heating airflow
Sequence of Operations
shows the minimum airflow setpoints.
shows space temperature control modes
Location in Rover
Configuration setup tab
Configuration setup tab
Configuration setup tab
Configuration setup tab
Configuration setup tab
Configuration setup tab
1
Ventilation tab
Use active minimum flow
setpoint
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes, occupied minimum
Yes, occupied minimum
Yes, occupied minimum
No
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