FRBH, FRBHX AND FRBHS USER INSTRUCTIONS ENGLISH 71569178 20-08
Page 32 of 60
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the motor into final alignment. The pump and
driver should be within 0.38 mm (0.015 in.) FIM
(full indicator movement) parallel, and 2.5 mm/m
(0.0025 in./in.) FIM angular.
c) Run piping to the suction and discharge to the
pump. There should be no piping loads
transmitted to the pump after connection is
made. Recheck the alignment to verify that there
are no significant changes.
d) Perform final alignment. Check for soft-foot
under the driver. An indicator placed on the
coupling, reading in the vertical direction, should
not indicate more than 0.05 mm (0.002 in.)
movement when any driver fastener is loosened.
Align the driver first in the vertical direction by
shimming underneath its feet.
e) When satisfactory alignment is obtained the
number of shims in the pack should be
minimized. It is recommended that no more than
five shims be used under any foot. Final
horizontal alignment is made by moving the
driver. Maximum pump reliability is obtained by
having near perfect alignment. Flowserve
recommends no more than 0.05 mm (0.002 in.)
parallel, and 0.5 mm/m (0.0005 in./in.) angular
misalignment. (See section 6.9.6)
f) Operate the pump for at least an hour or until it
reaches final operating temperature. Shut the
pump down and recheck alignment while the
pump is hot. Piping thermal expansion may
change the alignment. Realign pump as
necessary.
4.9
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 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 any doubt contact
Flowserve for advice.
4.9.4
The motor must be wired up in
accordance with the motor manufacturer's
instructions (normally supplied within the terminal
box) including any temperature, earth 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.
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.
See section 5.3,
Direction of rotation
before connecting the motor to the electrical supply.
4.10 Protection systems
The following protection systems are
recommended particularly if the pump is installed in
a potentially explosive area or is handling a
hazardous liquid. If in doubt consult Flowserve.
If there is any possibility of the system allowing the
pump to run against a closed valve or below
minimum continuous safe flow a protection device
should be installed to ensure the temperature of the
liquid does not rise to an unsafe level.
If there are any circumstances in which the system
can allow the pump to run dry, or start up empty, a
power monitor should be fitted to stop the pump or
prevent it from being started. This is particularly
relevant if the pump is handling a flammable liquid.
If leakage of product from the pump or its associated
sealing system can cause a hazard it is
recommended that an appropriate leakage detection
system is installed.
To prevent excessive surface temperatures at
bearings it is recommended that temperature or
vibration monitoring are carried out. See sections
5.7.4 and 5.7.5.
