caprari HVX Serie Betriebs- Und Wartungsanleitung Seite 15

6 USE AND MANAGEMENT
6.1 Starting
ATTENTION Before starting, it is always necessary to prime the pump by venting off the air in the ducts and pump itself.
The following operations are required if the pump is not installed below head:
1) remove the plugs from the delivery and suction mouth (when installed) and pour in water;
2) close the suction plug when water begins to flow out;
3) close the delivery plug when the pump has completely filled.
ATTENTION Consult paragraph 6.2 "Conduction and inspections" before starting for the first time.
If the electric pump fails to start (no "run-up"), do not repeatedly attempt to start as this could damage the unit. Identify the malfunction and repair.
If an indirect starting system is used, the starting transient must be brief and must never exceed a few seconds.
General prescriptions for employ of INVERTER
When starting and/or during use, the minimum frequency must not be less than 70% of the rated value.
The motor must be ordered with the type of electric winding that suits the use required.
dV
Voltage gradient
dt
Harmonic content of the voltage ≤ 1.5 %.
Harmonic content of the current ≤ 4 %.
Conditions that must be complied with regardless of the length of the power cables.
6.2 Conduction and inspections
ATTENTION Once installed, the pump will require no particular maintenance. To ensure continuously regular operation it is, however,
necessary to conduct regular preventive inspections on first start-up and at least every 1000÷1500 hours service. Check the
following items at this time:
- check the dimensions as indicated in the "Operating Brief" (consult the "Summary of operating data" chapter);
- check that the power draw never exceeds the data plate values, particularly during the initial operating phases;
- check that the motor cooling system is clean.
Proceed according to the instructions in this manual if operation is faulty.
6.3 Maintenance
Ordinary maintenance and repair of the electric pump must only be carried out by specialized personnel.
Extraordinary maintenance must be carried out by an authorized specialized workshop.
Removal
If the electric pump must be disassembled from the system, check the weight and stability of the various components as they are
demounted (consult chapter 4 "Storage and handling").
Replacing the mechanical seal
1) Remove the netting used to protect the coupling and loosen the screws that fix the two half-couplings;
2) hold the motor by its gripping zones and disassemble it;
3) remove the coupling, the spring ring and the mechanical seal flange;
4) ATTENTION remove the mechanical seal without turning the shaft;
5) fit a new seal and remount the flange, also changing the flat seal if this in no longer efficient;
6) restore the initial conditions by using the relative supplied fork spacer between the coupling and mechanical seal flange in order to raise the
pump shaft whilst the coupling is being tightened.
Only ever use genuine Caprari spare parts. Failure to do this could void the guarantee and would relieve the manufacturer of all responsibility in
merit.
Specify the following information when ordering spare parts from Caprari S.p.A. or from one of their Authorized After-Sales Centers:
1 - the complete code of the product;
2 - the date code and/or serial number and/or job number when pertinent;
3 - the denomination and reference number of the part as indicated in the spares catalogue (available from Authorized After-Sales Centers) or in
the typical sections illustrated in this manual;
4 - the required number of parts.
6.4 Inactivity
If pump remains inactive for 20÷30 days, always check that the rotor is free to turn and that the hydraulic part is primed before starting.
Consult chapter 4 "Handling and storage" chapter for further information.
7 DISPOSAL AND DISMANTLING
When dismantling the product, the technician must proceed with the relative phases and dismantle and destroy the unit in strict compliance with
the local safety rules and regulations governing such activities.
8 WARRANTY
The general conditions of sale governing all products manufactured by Caprari S.p.A. are also valid for the equipment in question.
In particular, remember that one of the essential conditions for recognition of the warranty is compliance with all the individual instructions given
in the enclosed documentation and the best hydraulic and electrotechnical provisions, fundamental condition to ensure regular operation of the
electric pump unit.
Malfunction caused by wear and/or corrosion is not covered by the warranty.
To prevent the warranty from becoming void, the electric pump unit must first be examined by our technicians or by technicians from our
Authorized After-Sales centers.
Failure to comply with the instructions in the documentation supplied with the electric pump unit shall void all form of guarantee and relieve the
manufacturer from all responsibility in merit.
Caprari S.p.A.
V
750
s
HVX - HVXS
GB
15