RS – Multi-Stage, I-280
Centrifugal Pump 280 – 16.03.EN
3
coupling, driver, seal and any additional equipment, with
the necessary CE Certificate/Declaration of Conformity
establishing it is suitable for the area in which it is to be
installed.
The output from a variable frequency drive (VFD) can
cause additional heating affects in the motor and so, for
pump sets with a VFD, the ATEX Certification for the
motor must state that it covers the situation where
electrical supply is from the VFD. This is particular
requirement still applies even if the VFD is in a safe
area.
E. SAFETY AWARENESS. It is imperative to comply
with the safety instructions contained in this manual, the
relevant national and international explosion protection
regulations, health and safety regulations and the
operator’s own internal work, operation and safety
regulations.
Ex symbol relates to additional
requirements which must be adhered to when
the pump is operated in potentially explosive
atmospheres.
F. SAFETY INSTRUCTIONS FOR THE OPERATOR
/USER.
Any hot or cold components that could pose a
hazard must be equipped with a guard by the
operator.
Guards which are fitted to prevent accidental
contact with moving parts (e.g. coupling) must
not be removed whilst the unit is operating.
Leakages (e.g. at the shaft seal) of hazardous
fluids (e.g. explosive, toxic, hot) must be
contained so as to avoid any danger to persons
or the environment. Pertinent legal provisions
must be adhered to.
Electrical hazards must be eliminated. (In this
respect refer to the relevant safety regulations
applicable to different countries and/or the local
energy supply companies.)
If the pumps/units are located in
potentially explosive atmospheres, it is
imperative to make sure that unauthorized
modes of operation are prevented. Non-
compliance may result in the specified
temperature limits being exceeded.
G. SAFETY INSTRUCTIONS FOR MAINTENANCE,
INSPECTION AND INSTALLATION WORK. The
operator is responsible for ensuring that all
maintenance, inspection and installation work be
performed by authorized, qualified personnel who are
thoroughly familiar with the manual and pumping unit.
To ensure safe operation the ball
bearings must be replaced at 20000 hours of
service or whenever the mechanical seal is
inspected or serviced.
The pumping unit must have cooled down to ambient
temperature, pump pressure must have been released
and the pump must have been drained before working
on any pumping unit. Work on the pumping unit must be
carried out during shutdown. The shutdown procedure
described in the manual for taking the unit out of service
must be adhered to.
Pumps handling fluids that are hazardous to personnel
must be decontaminated prior to being worked on.
Immediately following completion of the work, all safety
relevant and protective devices must be reinstalled
and/or reactivated. Please observe all instructions set
out in the Section VIII on start up before returning the
pumping unit to service.
H. NON-COMPLIANCE WITH SAFETY
INSTRUCTIONS. Non-compliance with safety
instructions may result in personal injury, property
damage, or unnecessary damage to the pumping unit.
Non-compliance with these safety instructions will also
lead to forfeiture of any and all rights to claims for
damages. Non-compliance, can for example, result in:
Failure of important pumping unit functions.
Failure of prescribed maintenance and servicing
practices.
Hazard to personnel by electrical, mechanical,
and chemical effects as well as explosion.
Hazard to the environment due to leakage of
hazardous substances.
I. UNAUTHORIZED MODIFICATION AND
MANUFACTURE OF SPARE PARTS. Modifications or
alterations of the pumping unit supplied are only
permitted after consultation with Carver Pump and to the
extent permitted by Carver Pump. Original spare parts
and accessories authorized by Carver Pump ensure
safety. The use of other parts can invalidate any liability
of Carver Pump for consequential damage and/or
warranty.
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