11
ADJUSTMENT OF THE PRESSURE SWITCH
CHAPTER 6
The pressure switch of BOOSTER SETS PENTAIR is pre-set by the manufacturer at 2 bar for the start-up pressure and at 3 bar for
the pressure required to stop the pump. According to the manufacturer's experience, these are the most suitable values for the vast
majority of installations. To modify these settings, please contact a qualied electrician.
• In ordinary conditions, BOOSTER
SETS PENTAIR do not require any
maintenance
• To prevent possible problems, it
is advisable to periodically check
the pressure supplied and current
absorption
• A reduction of the pressure may
indicate that the electropump is worn
• Sand and other corrosive materials
present in the delivery uid cause
a rapid wear and a reduction of
performance
• In this case, it is advisable to use a
lter and select an appropriate lter
cartridge according to the application
• An increase in current absorption
indicates the presence of abnormal
mechanical friction in the pump
and/or the motor
• To avoid problems, it is advisable to
regularly check the pre-load pressure
in the tank
• At this point, disconnect the pump
from the mains and open the water
supply to remove the pressure from
the system
• Then, measure the pre-load pressure
using the valve on the rear side of
the tank
• Perform the measurement with an
independent pressure gauge
• Pressure should be equivalent to 1.5
bar. Correct the value if it is incorrect
• If the electropump is not going to be
used for a long period of time (i.e.
one year), it is advisable to empty it
completely (by opening the drain cap,
see Fig. 1 n. 10), rinse it with clean
water and store it in a dry location,
where it can be protected from frost
MAINTENANCE AND TROUBLESHOOTING
CHAPTER 7
Make sure the machine is disconnected from electric power supply, before performing maintenance operation.
DANGER - ELECTRIC SHOCK RISK
EN
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