Minimum Speed Curve - Airstream TC5-2V4SA User Manual

M
INIMUM VENTILATION SPEED CURVE
The user can define a minimum ventilation speed curve to adjust the Stage
1 minimum speed automatically over a given time period. Each curve is
defined by six points. Each point specifies a day number and a fan speed
for that day. Once the points are defined, the minimum speed curve must
be activated. When the minimum speed curve is activated, the controller
adjusts the Stage 1 minimum speed every hour in a linear fashion be-
tween two consecutive points.
When the last point of the curve is reached, the curve is deactivated. The
controller maintains the minimum speed specified for this point until the
curve is reactivated or until a new single minimum speed is specified using
the first method.
Temperature
or Speed
NOTE:
If the room temperature falls below the values shown in Table 1 below, the
fans will begin to run at the minimum speed specified for the first point
of the curve and will continue to do so as long as the room tempera-
ture remains below the set point. When the room temperature rises
above the set point, the fans will return to the current minimum speed,
calculated according to the minimum speed curve.
d35
d4 d10
d25
TC5-2V4SA

Minimum Speed Curve

d50
d70
TC5-2V4SA rev.06
Temperature Curve
d80
Days
31