EBARA WINNER Operating And Maintenance Manual page 6

4.4.2. BHS PUMP RATING PLATE
The two types of rating plate (1) and (2) applied to BHS-series
pumps are featured below. For descriptions of numerical val-
ues, see PART 1 chap. 12.
EN
The pump comes with a second adhesive plate (2) to be applied
on the control panel.
4.5. INFORMATION ON AIRBORNE NOISE
Given the type of use, the motor-driven pumps do not exceed an
A-weighted sound pressure emission level of 70 dB (A).
THE MANUFACTURER RESERVES THE RIGHT TO AMEND
TECHNICAL DATA FOR THE PURPOSE OF PRODUCT IMPROVE-
MENTS AND UPDATING.
5. PREPARING FOR USE
WARNING
USE A ROPE FASTENED ON THE RELEVANT HOOKS
TO LIFT OR LOWER THE PUMP: NEVER USE THE
POWER CORD (WHEN HANDLING THE IDROGO UNIT,
REMEMBER NEVER TO PULL THE FLOAT CABLE AND
SWITCH - FIG. 6)
To install WINNER-BHS-IDROGO series pumps, proceed as di-
rected in PART 1, chapter 7 and in the following points:
5.1. WINNER - BHS
The submersible pump must be installed correctly if it is to
provide lengthy, efficient service. Submersible WINNER-BHS
pumps purchased without a motor can be coupled with any kind
of submersible motor of suitable size and power, according to
NEMA standards.
To perform the operation properly, proceed as follows:
5.1.1. Coupling to submersible motor (FIG. 2-3-4):
– Remove the motor (A) and pump (B) from the packaging and
place both the motor and pump down on a horizontal sur-
face.
6
Work on motor (FIG. 2):
a) Remove the four nuts (1) and four spring washers (2), being
careful not to lose them;
b) Where necessary, loosen the screw (3) fastening the earth
cable, turning the cable so that it runs in the same direction
as the power cord, and fasten it (4);
c) At this point, the motor is ready to accommodate the pump.
Work on pump:
Keeping the pump upright:
a) remove the pump's cable cover (5) by means of the four
fastening screws (6), (7) and, where applicable, the suction
filter (8), if an external model is fitted (FIG. 4).
b) set the motor in an upright position with the shaft sticking
out at the top;
c) holding the pump upright, turn it so that the slot in the bot-
tom of the pump is lined up with the motor's power cord;
d) lower the pump using the motor's tie rods as a guide and
centre the pump on the motor. If you have trouble coupling,
turn the motor shaft slightly or turn the pump's coupling;
e) insert the washers and tighten the nuts securing the motor's
tie rods, fastening them in a criss-cross pattern (as an extra
precaution, use thread-locking liquid to make nut tightening
even more secure);
f) align the cable along the outer surface of the pump, keeping
it above the suction port;
g) fasten the filter, if an external one is fitted, and cable cover.
5.1.2. Installation
a) The motor-driven pump has two openings to be used to con-
nect a safety cable (FIG. 1);
b) in pumps with a self-locking screw (9) (FIG. 4) on the delivery
port:
1) unscrew the self-locking screw
2) screw in the delivery pipe
3) fasten the screw just enough to prevent the pipe unscrew-
ing during starting but without deforming the delivery
pipe;
c) use an instrument to make sure that the motor is not
earthed.
d) the motor comes with a cable. When joining the cable, be
sure to:
– choose suitable cable;
– perform the work correctly;
– ensure the extension is good quality and intact;
e) once you have done, make sure the joint has been made
properly and is insulated, checking electrical insulation from
phase to earth. Once you have done, use a tester to make
extra sure that joints and connections have been made
properly;
f) the extension of the modular delivery pipe is performed
at the same time as the pump is lowered into the well (by
means of the safety cable). This involves inserting nonreturn
valves between the parts, where necessary (the delivery
pipe's diameter must be equal to or greater than the pump's
port). The power cord is fastened to the pipe with clamps;
g) the pump comes with a nonreturn valve, but it is best to in-
stall (see point C) an additional valve on the delivery pipe
after 15 m and another one every 40 m. Fitting these valves
avoids damage caused by water hammer, reducing shocks
produced by the water immediately after switching on and
off;
h) once the pump has been lowered into the well, make sure it
does not touch the bottom and that it is always at least 1m
under water and suspended at least 1m above the gravel.
The well should be purged of sand and any other foreign
matter contained;
make sure the pump is still submersed even after extensive
use, where necessary lowering it or installing a safety device
employing a minimum-level sensor to prevent dry running;