Set Point Adjustment - Samson 42-36 E Mounting And Operating Instructions

Operation

7.1 Set point adjustment

The flow rate can be adjusted either when
the electric actuator is mounted on the valve
or without a mounted electric actuator.
The flow rate set point is determined by the
position of the restriction (2.7) on the valve.
Î The control and shut-off valves as well as
all consumers or a bypass valve (if in-
stalled) must be open to ensure that the
maximum flow rate is reached.
Î Set the required flow rate by adjusting
the restriction (2.7), while watching, for
example the reading of a flow rate mea-
suring unit at the heat meter.
Note
Adjustment is always based on the closed re-
striction.
To adjust the flow rate, use the adjustment
diagrams for water (Fig. 7-2, Fig. 7-3 and
Fig. 7-4).
Refer to the associated mounting and operat-
ing instructions (see documents listed under
'Referenced documentation' in the 'Safety in-
structions and measures' section) for further
possible settings of the electric actuator.
In addition to the details in the mounting and
operating instructions of the basic device,
adjust the flow rate as described in sec-
tions 7.2.1 to 7.2.3.
7-2
Note
Observe the differential pressure across the
restriction ∆p
restriction
is determined by the differential pressure
springs (14) installed in the actuator (see the
'Markings on the device' section).
of 0.2 bar or 0.5 bar. It
EB 3018 EN