EBARA 3E Series, Original Instructions Manual

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4
EN
OPERATING AND MAINTENANCE MANUAL PART 2
THE USER SHOULD KEEP THIS DOCUMENT
1. INTRODUCTION
This instruction manual is split into two booklets: PART 1,containing
general information regarding our whole product range; and PART
2, containing information specific to the motor-driven pump you have
purchased. The two publications are complementary 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 contain-
ing the product’s specific information as valid.
NO PART OF THESE ILLUSTRATIONS AND/OR TEXT MAY BE RE-
PRODUCED FOR ANY REASON.
The following symbols have been used in the compilation of this in-
struction booklet:
WARNING!
Risk of damaging the pump or the system
Risk of causing injury and damaging property
Electric Hazard
Risk from Hot surface
2. CONTENTS
1. INTRODUCTION page 4
2. CONTENTS page 4
3. DESCRIPTION AND USE OF MOTOR-DRIVEN PUMP page 4
4. SPECIFICATIONS page 4
5. PREPARING FOR USE page 5
6. DIAGRAMS AND DRAWING page 5
3. DESCRIPTION AND USE OF MOTOR-DRIVEN PUMP
3.1 DESCRIPTION
MODEL/Type Cast iron Description
3E X Inline End suction close coupled cast iron pump
3ES X
Inline End suction close coupled with flanged
motors and rigid coupling
The motor-driven pumps are employed to handle cold and hot water
(see section 4) and are used in permanent installations. They are built
with materials assuring long life and consistent performance if used
ac- cording to the instructions given in Part 1 and 2 of the manual.
Their special construction means they can be disassembled to service
the motor and replace the impeller and mechanical seal without having
to disconnect the pump casing from the suction and delivery lines.
They are designed for low and medium delivery rates in conformity
with EN 733 DIN 24255 standards and other corresponding European
standards.
3.2 USE FOR WHICH PUMPS ARE DESIGNED
The motor-driven pumps can be used for the following applications:
RESIDENTIAL AND COMMERCIAL: General water supply, water
lifting, swimming pool, pressure boosting systems, air-conditioning,
cooling.
FARMING: sprinkler or flood irrigation.
INDUSTRIAL: water handling, Chilling unit, Boiler, Heat Exchanger,
coolant unit.
Use the motor-driven pump based on its technical specifications.
3.3 USE FOR WHICH PUMPS ARE NOT DESIGNED
3E inline motor-driven pumps cannot be used to handle dirty water,
water containing acids and corrosive liquids in general, water with tem-
peratures higher than those mentioned in section 4, saltwater, flamma-
ble liquids and hazardous liquids in general.
The motor-driven pumps must never be made to work without
liquid.
4. SPECIFICATIONS
4.1 PUMP SPECIFICATIONS
U/M 3E/3ES
Temperature of liquid pumped °C -10 to 120
Suction diameter mm 32-40-50-65-80-100
Delivery diameter mm 32-40-50-65-80-100
Maximum working pressure MPa 1.0/1.6
4.2 MOTOR SPECIFICATIONS
TYPE TEFC
RATINGS See motor-driven pump rating plate
OVERLOAD PROTECTION
THREE PHASE: prepared by
installer
4.3 INFORMATIONS ON AIRBORNE NOISE
Power
[kW]
Motor shaft height
[mm]
50Hz LpA
[dB] (A)*
60Hz LpA
[dB] (A)*
3E 3ES 3E 3ES 3E 3ES
0,37 80 - <70 - - -
0,55
80 80 <70 <70 - -
0,75 90 80 <70 <70 <70 -
1,1 90 80 <70 <70 72 <70
1,5 90 90 <70 <70 72 70
2,2
90 90 <70 <70 72 70
3 100 100 76 <70 76 74
4 100 112 76 <70 76 78
5,5 112 132 79 72 80 82
7,5
112 132 79 72 80 82
9,2 132 132 82 72 85 82
11 132 160 82 74 85 84
15 132 160 80 74 85 84
15
160 160 86 74 88-87 84
18,5 160 160 86 74 88-87 84
22 160 180 86 77 88-87 85
30 - 200 - 78 - 87
37
- 200 - 78 - 87
Power
[kW]
Motor shaft height
[mm]
4pole 50Hz LpA
[dB] (A)*
3E 3ES 3E 3ES
≤3 71-100 71-100 <70 <70
*Sound pressure level - Mean value of measurements taken 1 m from the pump.
Tolerance ±2.5 dB.