it en fr de es pt
it en fr de es pt
it en fr de es pt
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<strong>en</strong><br />
6. Start-up information for installers<br />
6.1 Water Connection<br />
The water connections must be ma<strong>de</strong> by a qualified installation technician in compliance w<strong>it</strong>h the regulations in force.<br />
In case of connection to the water system, the regulations issued by the compet<strong>en</strong>t author<strong>it</strong>i<strong>es</strong> (municipal, public util<strong>it</strong>y company,…)<br />
must be observed. Th<strong>es</strong>e regulations oft<strong>en</strong> require the installation of a backflow prev<strong>en</strong>tion <strong>de</strong>vice, such as a disconnector or check<br />
valve or disconnection tank.<br />
The suction pipe must be perfectly sealed and watertight. If the pump/electric pump is installed near dwellings, su<strong>it</strong>able pip<strong>es</strong> or flexible unions should be provi<strong>de</strong>d<br />
to prev<strong>en</strong>t the transmission of vibrations <strong>fr</strong>om the pump to the pip<strong>es</strong>. Install on-off valv<strong>es</strong> on the suction and <strong>de</strong>livery si<strong>de</strong>s to avoid having to drain the<br />
system before maint<strong>en</strong>ance, repair or pump replacem<strong>en</strong>t operations can be performed. Wh<strong>en</strong>ever nec<strong>es</strong>sary, provi<strong>de</strong> a by-pass circu<strong>it</strong> to prev<strong>en</strong>t the overheating<br />
of the water insi<strong>de</strong> the pump.<br />
Refer to the instructions provi<strong>de</strong>d in section 3.1.4.<br />
For add<strong>it</strong>ional information refer to the relevant electric pump manual.<br />
WARNING<br />
After providing for the water connections, remove the motor fan cover and, operating the valve, make sure that the shaft is revolving<br />
<strong>fr</strong>eely. Afterwards replace the fan cover carefully.<br />
If any mechanical compon<strong>en</strong>ts rub against each other, please contact our Sal<strong>es</strong> and Service Departm<strong>en</strong>t.<br />
6.2 Electrical Connection<br />
The electrical connections must be performed by a qualified installation technician in compliance w<strong>it</strong>h the regulations in force.<br />
WARNING<br />
Make sure that the voltag<strong>es</strong> and <strong>fr</strong>equ<strong>en</strong>ci<strong>es</strong> are su<strong>it</strong>ed to the characteristics of the electric motor. Refer to the motor rating plat<strong>es</strong>.<br />
Provi<strong>de</strong> su<strong>it</strong>able g<strong>en</strong>eral protection against short circu<strong>it</strong>s on the power line.<br />
Before proceeding, make sure that all the connections (ev<strong>en</strong> those that are pot<strong>en</strong>tial-<strong>fr</strong>ee) are voltage-<strong>fr</strong>ee.<br />
Ground the system according to the regulations in force. The selection of the conductors (gauge, sheath material,…) must take into<br />
account the actual operating cond<strong>it</strong>ions. Protect the electrical conductors <strong>fr</strong>om too high temperatur<strong>es</strong>, vibrations and collisions.<br />
Refer to the motor operating instructions provi<strong>de</strong>d w<strong>it</strong>h the electric pump.<br />
6.2.1 Cable glands<br />
The motors are normally sold w<strong>it</strong>hout any cable glands.<br />
Use only the typ<strong>es</strong> of cable glands specified in the motor operating instructions.<br />
6.2.2 Overload protection<br />
WARNING<br />
You must provi<strong>de</strong> the overload protection (thermal relay or motor protector)<br />
Adjust the thermal relay or motor protector to the nominal curr<strong>en</strong>t value of the electric pump or to the operating curr<strong>en</strong>t in case the motor is not used at full<br />
load. If the motor has a star-<strong>de</strong>lta starting system, adjust the thermal relay to a value equal to 58% of the nominal curr<strong>en</strong>t or operating curr<strong>en</strong>t.<br />
6.2.3 Overload protection (version powered by a <strong>fr</strong>equ<strong>en</strong>cy converter)<br />
WARNING<br />
You must connect the terminals of the PTC or PT100 prob<strong>es</strong> to a release relay in or<strong>de</strong>r to stop the motor in case of malfunction.<br />
For add<strong>it</strong>ional information refer to the motor operating instructions.<br />
6.2.4 Protection Against Dry Running<br />
Avoid the possibil<strong>it</strong>y of dry running, i.e. the pump must not run w<strong>it</strong>hout water insi<strong>de</strong> <strong>it</strong>. Make sure that a su<strong>it</strong>able dry running protection<br />
system is installed.<br />
6.2.5 Grounding (FHF versions w<strong>it</strong>h painted pump casing)<br />
WARNING<br />
The paint might act as an electrical isolator. If you think that buildup of electrostatic charg<strong>es</strong> insi<strong>de</strong> the pump casing must be prev<strong>en</strong>ted,<br />
connect the pump casing to the equipot<strong>en</strong>tial line.<br />
6.3 Priming<br />
WARNING<br />
Fill the pump and suction pip<strong>es</strong> w<strong>it</strong>h water before starting the un<strong>it</strong>. Dry running can damage the pump.<br />
For add<strong>it</strong>ional information refer to the relevant electric pump manual.<br />
6.3.1 Suction From a Higher Level or From the Water System (Pos<strong>it</strong>ive Suction Head)<br />
Refer to the relevant electric pump manual.<br />
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