6-2
EB 2430 EN
Start-up
6.1
Start-up and putting the
device back into operation
1. Depending on the field of application,
allow the regulator and control thermo-
stat to cool down or warm up to reach
ambient temperature before start up.
2. Check the control thermostat to ensure it
functions properly.
6.1.1
Starting up the plant
when vapors and
liquids are controlled
1. Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side of the regulator and control thermo-
stat. Afterwards, open all the valves on
the consumer side (downstream of the
regulator).
2. Fill the plant
slowly
with the process me-
dium. Avoid pressure surges.
3. Make sure that the pressure rises simulta-
neously upstream and downstream of the
regulator and control thermostat to avoid
damaging it.
4. To start up the regulator and control ther-
mostat, open shut-off valves
slowly
.
5. Check the adjusted temperature set point
at the thermometer installed near the
temperature sensor.
6.1.2
Starting up the plant
when vapors are
controlled
1. Completely drain and dry steam lines to
prevent water hammering.
2. Slowly allow the steam to enter the plant
to ensure that the pipes and valves warm
up evenly and to avoid excessive flow
velocities.
3. Before the full capacity is reached, drain
off the start-up condensate.
4. Make sure that the air contained in the
plant escapes as quickly as possible.
5. Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side of the regulator.
6. Avoid pressure surges.
7. Check the adjusted temperature set point
at the thermometer installed near the
temperature sensor.
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