EN
Operating and
maintenance manual
Submersible motor-driven pumps
Serie BEST, RIGHT, DW
OPERATING AND MAINTENANCE MANUAL PART 2
THE USER SHOULD KEEP THIS DOCUMENT
1. INTRODUCTION
This instruction manual is split into two booklets: PART 1, con-
taining general information regarding our whole product range;
and PART 2, containing information speci c to the motor-driven
pump you have purchased. The two publications are comple-
mentary to each other, so make sure you have both.
Comply with the instructions contained in them to get the most
out of your motor-driven pump and assure its proper operation.
If you need further information, get in touch with your nearest
authorized dealer.
If information in the two parts contradict each other, take PART
2 containing the product’s speci c information as valid.
NO PART OF THESE ILLUSTRATIONS AND/OR TEXT MAY BE
REPRODUCED FOR ANY REASON.
The following symbols have been used in the compilation of this
instruction booklet.
WARNING!
Risk of damaging the pump or system
Risk of causing injury or damaging property
Electrical hazard
2. CONTENTS
4 egap NOITCUDORTNI .1
4 egap STNETNOC .2
3. DESCRIPTION AND USE OF MOTOR-DRIVEN PUMP page 4
4 egap SNOITACIFICEPS .4
4 egap ESU ROF GNIRAPERP .5
5 egap GNITRATS .6
5 egap ECNANETNIAM .7
8. INSTALLATION AND DISASSEMBLY DIAGRAMS page 36
3. DESCRIPTION AND USE OF MOTOR-DRIVEN PUMP
3.1. DESCRIPTION
Description: SUBMERSIBLE MOTOR-DRIVEN PUMPS
Model: OPTIMA/BEST
RIGHT
DW - DW VOX
3.2. USE FOR WHICH PUMPS ARE DESIGNED
The motor-driven pumps can be used for:
-wes ro ytrid sa llew sa )TSEB/AMITPO( retaw raelc gnildnah
age water (RIGHT-DW) with solids in suspension up to the
diameter indicated in chap. 4;
,sknat ,stnemesab ,srallec ,segarag fo tuo retaw gnipmup
reservoirs, fountains, rainwater drains;
ood irrigation of vegetable patches and gardens and oxygen-
ating water. The DW series can also be
used to drain rainwa-
ter drains, cesspits and septic tanks, and trenches etc..
WARNING!
NEVIRD-ROTOM SEIRES-WD DNA -THGIR ESU YLNO
PUMPS FOR CONTINUOUS DUTY IF THEY ARE FULLY
SUBMERSED.
DO NOT USE RIGHT – DW MOTOR-DRIVEN PUMPS
WITH THE MOTOR OUT OF WATER FOR MORE THAN 15
MINUTES.
Use the motor-driven pumps based on their technical speci-
cations.
3.3. USE FOR WHICH PUMPS ARE NOT DESIGNED
The pumps cannot be used to handle:
− -neg ni sdiuqil evisorroc dna ,sesab ro sdica gniniatnoc retaw
eral;
− ni nevig timil erutarepmet eht revo erutarepmet a htiw retaw
chap. 4.
− seawater;
− ammable liquids and hazardous liquids in general;
− -53306 NE ot gnidrocca( sloop gnimmiws ni desu eb tonnac
2-41);
− -tuo desu eb tonnac gnol m01 naht ssel elbac a htiw spmup
doors.
The motor-driven pumps must never be made to work without
liquid.
4. SPECIFICATIONS
4.1. OPTIMA/BEST PUMP SPECIFICATIONS
U.M. OPTIMA
BEST ONE
BEST ONE VOX
BEST
2-5
Max. temperature
of liquid pumped
°C 50 35
Max. size
of solids in
suspension
mm 10 20 10
Max. immersion
depth
m 5 10
Delivery diameter * G 1”
1
4
G 1”
1
2
* = threading according to ISO 228
4.2. RIGHT – DW PUMP SPECIFICATIONS
U.M. RIGHT DW DW VOX
Max. temperature
of liquid pumped
°C 40
Max. size
of solids in
suspension
mm 35 50
Max. immersion
depth
01m
Delivery diameter * G 1”
1
2
G 2” or DN 50 ange
* = threading according to ISO 228
4.3. OPTIMA/BEST - RIGHT - DW MOTOR SPECIFICATIONS
OPTIMA
BEST ONE
BEST 2-5 RIGHT DW
elbisrembuSEPYT
MAX. STARTS PER
HOUR
30 20
RATINGS See motor-driven pump rating plate
OVERLOAD
PROTECTION
SINGLE PHASE: thermal cutout w/automatic reset
THREE PHASE: by installer
4.4. 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).
5. PREPARING FOR USE
WARNING!
USE A ROPE FASTENED AROUND THE HANDLE TO LIFT OR
LOWER THE MOTOR-DRIVEN PUMP: NEVER PULL THE POWER
CABLE AND/OR FLOAT CABLE AND SWITCH (FIG. 12).
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