Publicité
Les langues disponibles
Les langues disponibles
ENGLISH
increases.
- Turn the nut (Fig. 2, item 2) clockwise; the value of the low point
increases (the difference increases).
Before adjusting the pressure contactor, choose the starting and the
stopping pressures. We recommend:
Starting: 4 bars, stopping : 6 bars (maxi. 10 bars)
If you choose other points, check that the intersection of the starting
and stopping pressures is in the contactor's operating range (Fig. 2b).
After choosing the starting and stopping pressures, proceed as follow:
Open the discharge valve (item 11)
Close the discharge valve (item 11).
Remove the cover from the contactor.
Turn the nuts (items 1 & 2) fully clockwise
Start the pump to raise the pressure (max. 4 or 10 bars
depending on version).
Cut off power at the desired pump stopping pressure
(read on pressure gauge).
Turn the nut (item 1) anticlockwise until a
Open the discharge valve (item 12) to lower the pressure
to the desired pump starting level
(read on pressure gauge), then close it.
Turn the nut (item 2) anticlockwise.
If a click is heard.
Start the pump and check your
adjustments.
Adjustments OK
Adjustments
imprecise
Put the cover
back on
See "principle"
Commission
the adjustments
Adjustments OK
12
to depressurize.
without tightening.
click can be heard.
If no click.
Check your operating points
and the tank
pre-pressurization
pressure
(it must be 0.3 bars less than
the pump starting pressure).
If necessary, choose 2 new
points and adjust the pre-
and
refine
pressurization pressure.
Publicité
