Setting the volume flow rate
Sufficient duct pressure must be ensured for all
operating conditions and for all control units. The
measurement points for fan speed control must be
selected accordingly.
Fig. 10: Setting the volume flow rate
1.
Using the volume flow rate scale (Fig. 10/1),
determine the setting value (1-10) for the
desired volume flow rate (l/s, m³/h, or cfm).
2.
Loosen the hexagon socket screw
(Fig. 10/3).
3.
Set the rotary knob to the determined value
of the setting scale (Fig. 10/2) and fix it with
the hexagon socket screw (Fig. 10/3).
No further measurement or adjustment is
necessary.
Setting Vmin/Vmax actuators
Fig. 11: Setting the volume flow rate
Factory setting:
Vmin: 4
Vmax: 8
1.
Using the volume flow rate scale (Fig. 11/1),
determine the setting value (1-10) for the
desired volume flow rate (l/s, m³/h, or cfm).
2.
Set the desired value at the Vmin potentiom-
eter (Fig. 11/3).
3.
Set the desired value at the Vmax potenti-
ometer (Fig. 11/2).
4.
Carry out a functional test using the test
push button and check the scale position
reached for the preset volume flow after the
motorised adjustment process.
Initial commissioning
CAV controllers EN
11
Summary of Contents for CAV controllers
Page 14: ...CAV controllers EN 14...
