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It is recommended to fit a foot valve on intake. To avoid the formation of air pockets in the suction pipe, ensure that the suction pipe is
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tilted slightly towards the electropump.
Provide a hole for priming the pump in the delivery pipe (see paragraph. 9.1).
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7.4 Working conditions of the PULSAR DRY
Water temperature: from 0°C to + 40°C / 32°F to 104°F.
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The electropump cannot operate when dry.
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7.5 Hydraulic connection PULSAR – PULSAR DRY
The hydraulic connection of the electropump can be carried out with iron or rigid plastic parts.
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Avoid any kind of choking of the output pipe.
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It is advisable to use pipes with an internal diameter at least equal to that of the delivery pipe, so as to avoid a fall in the performance
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of the pump and the possibility of clogging.
For the version with a float switch, ensure that the latter can move freely (see Paragraph 9.3. "REGULATING THE FLOAT SWITCH" ).
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The size of the pit must always be calculated in relation to the quantity of incoming water and to the flow rate of the pump so as not so
subject the motor to an excessive number of starts.
To lower the pump, always use a rope or chain fixed beforehand to the hook on top of the pump. (Fig.1, pag. 1). Never use the power
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cable to lift the electropump.
When using in a well, it is recommended to secure the power cable to the delivery pipe with hose clamps, every two/three metres.
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Install a non return valve on the delivery pipe at a distance of at least 2 mt / 6,5 ft from the delivery mouth of the
electropump. (Fig.1, pag. 1)
The length of the power cable on the electropump limits the maximum depth of immersion at which the pump may be
used.
Dry operation of the pump causes irreparable damage to the mechanical seal.
8.
ELECTRICAL CONNECTION
Ensure that the mains voltage is the same as that shown on the plate of the motor to be fed and that there is the possibility of
MAKING A GOOD EARTH CONNECTION.
Both the single-phase and the three-phase version of the electropump are supplied with an electric cable. If the power cable is
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damaged in any way it must be replaced and not repaired.
It is advisable to reserve an electric power line exclusively for the pump connection.
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Upstream from the pump, fit a suitably sensitive magnetothermal differential switch.
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Switch off the power upstream from the system before making the electrical connection.
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Single-phase motors are provided with built-in thermal overload protection and may be connected directly to the mains.
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N.B. if the motor is overloaded, it stops automatically. Once it has cooled down, it starts again automatically without requiring any
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manual intervention.
Three-phase pumps must be protected with motor protectors suitably calibrated according to the values on the data plate of the pump
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to be installed.
Connect the cable of the pump to the electric panel, ensuring that the following parts correspond:
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Before making a test start, check the level of the water in the well.
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PULSAR – PULSAR DRY 30/50
PULSAR – PULSAR DRY 40/50 – 40/506
PULSAR – PULSAR DRY 50/50 – 50/506
PULSAR – PULSAR DRY 65/50 – 65/506
PULSAR DRY 20/80
PULSAR – PULSAR DRY 30/80 – 30/806
PULSAR – PULSAR DRY 40/80 – 40/806
PULSAR – PULSAR DRY 50/80 – 50/806
Model
ENGLISH
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Line fuses (Amps)
1x220-240V 50/60Hz
1x230V 60Hz
6
8
8
10
8
8
10
16
Install in vertical position.
If installed in a pit, the pit must be free from frost.
3x400V 50/60Hz
4
4
4
4
4
4
4
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