13
Pump Typ Z
Version: 27215 -G.1
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
4.2
Operating
4.2.1
Operation Monitoring
In most cases the pump is controlled from
the central point of the overall facility. A
prerequisite for a perfectly functioning
pump is adherence to the data provided for
its installation and use. See the chapter on
specifications.
1.
Temperature of the delivery fluid:
-
Never operate the pump at
temperatures in excess of those stated
in the original specification.
2.
Noise emission:
- The acoustic power
or sound pressure level is determined
by the motor as well as the pump, and
especially by the installation situation.
Special protective measures must be
taken to reduce transmission of
structure-borne or air-borne sound.
3.
Switching frequency:
- To avoid a
large temperature increase in the motor
and excessive strain on the pump, the
motor and bearings, do not switch the
motor on and off more than once per
minute.
4.
Minimum amount:
- If the sort of
facility includes the possibility of a run
against closed shut-off device on the
pressure-end, a minimum delivery rate
at t -30 to +70° C 15% of Qopt. over
+70 to +110° C 25% of Qopt. must be
supplied during this time.
5.
Density of the delivery fluid:
- The
power input of the pump changes in
proportion to the density of the delivery
fluid. In order to prevent the motor being
overloaded, the density must
correspond to the specifications.
4.2.2
Miscellaneous
Installed reserve pumps must be run briefly
once a week to ensure that they are always
ready for operation. They should be run for
approx. 5 minutes.
4.3
Indications of Faulty
Operation
4.3.1
General
When operated via a central control facility
faulty operation can be largely ruled out.
In the case of manual operation, but also
within a control complex, please observe
the following instructions.
Avoid damage to the pump and make sure
that:
•
The pump always runs quietly and
vibration free.
•
The pump does not run dry.
•
A longer period of operation with closed
shut-off device is avoided to prevent
heating up the delivery medium. For the
required minimum delivery see section
4.2.1.
•
The maximum permitted room tempera-
ture of +40° is not exceeded.
•
The maximum ball bearing temperature
does not exceed
room temperature by + 50° C and ne-
ver e 90° C (measured on the
outside of the motor housing).
•
During pump operation the shut-off de-
vice in the supply line is not closed.
4.3.2
Faults
In case of faults in the operation of the
pump, that were not caused by the control
facility or other foreign devices, proceed as
follows:
1. Locate the site of the fault or defect.
2. Determine the cause.
3. Remedy the fault.
Information:
Pay particular attention to the
following points for the manual
operation of the pump:
