Flowserve MENBLOC 60Hz User Manual download pdf (Page 21)

MENBLOC 60Hz USER INSTRUCTIONS ENGLISH 71559945 - 02/13

Page 21 of 36 flowserve.com

Control

manometer

Installation of control manometer

Do not tighten flanges before the

final check (see § 4.3.4).

Never wire up the electric motor

before the pump installation has been completely

finished.

4.3.4 Final checks

a) Check the tightening of anchor bolts. Tighten

them if necessary.

b) Check that protective covers on suction and

discharge flanges are removed.

c) Check that holes of piping flanges are parallel

and correspond to those of the pump.

d) Tighten suction and discharge flanges.

e) If it is required, connect piping (hydraulic,

pneumatic, sealing system).

f) Check seal and the working of auxiliary piping.

4.4 Electrical connections

4.4.1 Safety conditions about electrical

connections

Electrical connections must be made

by a qualified Electrician in accordance with

relevant local national and international

regulations. This includes any grounding.

It is important to be aware of the

EUROPEAN DIRECTIVE on potentially explosive

areas where compliance with IEC60079-14 is an

additional requirement for making electrical

connections.

Avoid mechanical, hydraulic or electrical

overload by using motor overload trips or a power

monitor and make routine vibration monitoring.

It is important to be aware of the EUROPEAN

DIRECTIVE on electromagnetic compatibility when

wiring up and installing equipment on site. Attention

must be paid to ensure that the techniques used

during wiring/installation do not increase

electromagnetic emissions or decrease the

electromagnetic immunity of the equipment, wiring or

any connected devices. If in doubt, contact

Flowserve for advice.

If the pump assembly has been

stored or is located in a damp atmosphere, the

isolating resistance of the electric motor must be

checked by a qualified electrician before wiring up.

The resistance must be greater than 5000 ohms

per volt specified on the motor nameplate.

Carry out the ground connections according to the

current local regulations.

The motor must be protected from

electrical overloading by a thermal overload switch

(overload relay) and fuses, installed between the

isolating switch and motor.

The capacity of the buses and overload relay must

be selected with reference to the full load values

written on the motor nameplate.

The final adjustment of the overload relay setting

should be done following § 5.4.2.

An emergency stop must be fitted.

4.4.2 Electrical supply

Make sure that the voltage of the electrical supply

line is correct for that specified on the motor

nameplate.

Make sure that the supply wires have sufficient

load capacity for the correct running of the

installation.

4.4.3 Wiring Instructions

IEC motors must be wired as follows (these

instructions don’t apply for NEMA motors):

• Delta connection (∆) for 220/240 V supply or

star connection ( ) for 380/415 V supply for

motors below 3 kW

• Delta connection (∆) for 380/415 V supply for

motors 3.0 kW or larger

• Supply frequency 50 Hz in all cases

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Flowserve MENBLOC 60Hz User Manual Page 21

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