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7
FBVI-2U4-4T Control Sequences
FBVI-2U4-4T COMMON CONTROL SEQUENCES
This section provides details of the typical control sequences used for most VAV applications. The
sequences covered in this manual include the following:
•
VAV Cooling only No Fan
•
VAV Cooling only
•
VAV Cooling only Variable Series Speed Fan
•
VAV One to Three Stage Electric Reheat No Fan
•
VAV One to Three Stage Electric Reheat Single Speed Fan
•
VAV One to Three Stage Electric Reheat Variable Speed Fan
•
VAV Modulating Hot Water Reheat No Fan
•
VAV Modulating Hot Water Reheat Single Speed Fan
•
VAV Modulating Hot Water Reheat Variable Speed Fan
VAV COOLING ONLY NO FAN
TEMPERATURE CONTROL
When the zone temperature is greater than the cooling temperature setpoint, the controller will enter
the cooling mode. The primary airflow rate will be varied between its
maximum Flowrate setpoint
temperature setpoint. Once the zone temperature falls below the cooling temperature setpoint, it will
exit the cooling mode.
When the zone temperature is between the cooling and heating temperature setpoints, it will be in
Deadband or Vent Mode. The controller will maintain the
When the zone temperature falls below the heating setpoint, the controller will enter the heating mode
and the primary airflow rate will maintain the
rises above the heating temperature setpoint, it will exit heating mode.
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maxCoolFlowStpt (A228)
as required to maintain the zone at the cooling
minCoolFlowStpt (A227).
FBVI-2U4-4T Contr
FBVi-2U4-4T |
minCoolFlowStpt (A227),
minCoolFlowStpt (A227).
Once the zone temperature
and its
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