Wilo Helix V 10, Инструкция по установке и эксплуатации

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- Lift the pump carefully by using the integrated hooks
rings, if necessary with a hoist and suitable slings
according to the current hoist guidelines.
WARNING! Risk of fall!
Take care to pump fixations especially for the highest
pumps whose center of gravity may lead to risk during
pump handling.
WARNING! Risk of fall!
Use integrated rings only if they are not damaged (no cor-
rosion ...). Replace them if needed.
WARNING! Risk of fall!
The pump must be never carried by using motor hooks:
these are only designed to lift the motor alone.
7.3 Pipe connection
- Connect the pump to the pipes by using appropriate
counter-flanges, bolts, nuts and gaskets.
CAUTION!
Tightening of screws or bolts must not exceed.
Use of impact wrench is prohibited.
- The circulation sense of the fluid is indicated on the
identification label of the pump.
- Pump must be installed in such a way that it is not
stressed by the pipework. The pipes must be attached so
that the pump does not bear their weight.
- It is recommended that isolation valves be installed on
the suction and discharge side of the pump.
- Use of expansion joints may mitigate noise and vibration
of the pump.
- As regards the nominal cross-section of the suction
pipe, we recommend a cross-section at least as large as
that of the pump connection.
- A check valve could be placed on the discharge pipe in
order to protect the pump against hammer shock.
- For direct connection to a public drinking water system,
the suction pipe must also have a check valve and a
guard valve.
- For indirect connection via a tank, the suction pipe must
have a strainer to keep any impurities out of the pump
and a check valve.
7.4 Motor connection for bare-shaft pump
(without motor)
- Remove coupling guards.
NOTE: Coupling guards can be removed without entirely
unscrewing screws.
- Install the motor on the pump by using screws (NEMA
lantern size – see product designation) or bolts, nuts
and handling devices) provided with the pump : check
motor power and dimension in Wilo catalogue.
NOTE: Depending on fluid characteristics, motor power
could be modified. Contact Wilo Customer Services if
needed.
- Close the coupling guards by screwing all screws provid-
ed with the pump.
7.5 Electrical connection
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be excluded.
• Electrical work by a qualified electrician only!
• All electrical connections must be performed after
the electrical supply has been switched off and secured
against unauthorized switching.
• For safe installation and operation a proper grounding
of the pump to the power supply’s grounding terminals
is required.
- Check that operating current, voltage and frequency
used comply with motor plating data.
- The pump must be connected to the power supply by a
solid cable equipped with a grounded plug-connection
or a main power switch.
- Three-phase motors must be connected to an approved
motor starter. The set nominal current must correspond
to the electrical data on the pump motor name plate.
- The supply cable must be laid so that it never touches
the pipework and/or the pump and motor casing.
- The pump/installation should be grounded in compliance
with local regulations. A ground fault interrupter can be
used as extra protection.
- The connection to the network must be in accordance
with the connection plan (Fig. 5).
7.6 Operation with frequency converter
- Motors used can be connected to a frequency converter
in order to adapt pump performance to duty point.
- The converter must not generate voltage peaks at motor
terminals higher than 850V and dU/dt slope higher than
2500 V/µs.
- In case of higher value, an appropriate filter must be
used: contact converter manufacturer for this filter defi-
nition and selection.
- Strictly follow instructions provided by the converter
manufacturer data sheet for installation.
- Minimum variable speed should not be set below 40%
of pump nominal speed.
230 PSI / 360 PSI
180 In. Lbs. / 260 In. Lbs.
English
12
WILO SE 01/2017