Flowserve QLQ Vertical Worthington - Manual (Page 30)

QLQ, QLQC USER INSTRUCTIONS ENGLISH 87900027 – 06/14
Page 30 of 61
Connect all the external connections (external
flushing or gas piping, electrical supply and wiring of
instrument (if any) according to what specified in
Section 4.8.
See section 5.4 for Direction of
rotation before connecting motor to the power supply.
If external flushing is needed, ensure
that the external flushing is open and reach the
mechanical seal before starting the pump.
4.6.4.4 Other piping
Refer to the pump general arrangement drawing for
location of the auxiliary piping terminal points, such
as packing and bearings washing and hypochlorite
flushing.
4.6.5 Final checks
After connecting the piping to the pump, rotate the
shaft several times by hand to ensure no pipe strain.
If pipe strain exists, correct piping.
4.7 Electrical connections
Electrical connections must be made
by a qualified Electrician in accordance with relevant
local, national and international regulations.
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.
It is important to be aware of the EUROPEAN
DIRECTIVE on electromagnetic compatibility when
wiring and installing the 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 any doubt contact
Flowserve for advice.
The motor must be wired in
accordance with the motor manufacturer's
instructions (normally supplied within the terminal
box) including any temperature, ground leakage,
current and other protective devices as appropriate.
The identification nameplate should be checked to
ensure the power supply is appropriate.
A device to provide emergency stopping must
be fitted to the system.
If not supplied pre-wired to the pump unit, the
controller/starter electrical details will also be supplied
within the controller/starter.
For electrical details on pump sets with controllers
see the separate wiring diagram sent along with the
pump. If no such document is found, please call
Flowserve and request for prints.