2.5.4 THERMIC MOTORS
Do not forget that these motors are not reversible. It is
absolutely necessary to carefully control the suction and
discharge sides of the pump before connecting the
group to the piping.
Using electric motors is very common now; however, we
strongly advise careful reading of the accompanying ins-
truction manual.
2.5.5 CONTROL OF THE SENSE OF ROTATION
This control needs to be done with no liquid pumped
through the pump, and both the suction and discharge
circuits venting to avoid generating unexpected pressu-
re (at the suction side, for example). This will ensure that
the control will not damage either the pump or the instal-
lation.
Start the pump empty to check that the connections are
good and that the direction of rotation corresponds to the
suction and discharge direction on the installation. If it is
necessary to reverse the direction of rotation, follow the
instructions below :
Three-phase motor : switch any 2 current input wires.
Bi-phase motor : switch two same phase wires.
Single-phase motor : follow the instructions on the notice
supplied with the motor.
THE SURFACES CAN BE AT A TEMPE-
RATURE LIABLE TO CAUSE INJURY
OR SEVERE DAMAGE.
CAUTION
Excessive temperature-
can cause injury or
severe damage.
A DRIVE SHAFT GUARD BETWEEN THE
PTO AND PUMP MUST BE PROVIDED
TO PREVENT PERSONAL INJURY,
PROPERTY DAMAGE, OR DEATH.
WARNING
Do not operate
without guard
in place.
IT IS IMPERATIVE THAT THE HYDRAULIC
PRESSURE IS RELEASED BEFORE EACH
MAINTENANCE OPERATION TO AVOID
PERSONAL INJURY OR MATERIAL
DAMAGE
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
TAKE ALL NECESSARY MEASURES
TO RENDER ANY START-UP, EVEN
ACCIDENTAL, OF THE PUMP DURING
THE WORK IMPOSSIBLE.
WARNING
Any unforeseen start-up
can cause serious
injuries or important
material damages.
2. INSTALLATION (continued)
11/23
NT 1004-C00 09.09 SLC24 SLC36 e
3.1 NOISE LEVEL
The sound level of a pump is greatly influenced by its
conditions of use. Cavitation and pumping products with
high gas contents generally increases the sound level.
Under the following pumping conditions :
• excluding cavitation
• discharge pressure :
• SLC24 : . . . . 9 bar (130,5 psi)
• SLC36 : . . . . 6 bar (87 psi)
• speed of rotation 460 rpm
• product viscosity of 1 cSt
The sound level reached for the SLC24 / SLC36 pump
in good conditions without the drive is less than 83 dB(A).
3.2 COMMISSIONING
Make sure that the circuit valves are open before star-
ting the pump.
To avoid any risk of polluting the product to be pumped,
rinse the whole installation before starting-up so as to
eliminate any contaminants that may remain in the
piping, tanks etc. at the time of installation.
3.3 DRY RUNNING
The SLC series pump is self priming and is capable of
emptying the pipes. To do this, it can run dry for a maxi-
mum duration of 5 minutes.
3.4 PUMP STOP
So as not to damage the pump, make sure that the
pump is completely stopped before closing the valves.
3. UTILISATION
