DAB Esybox Serie Instructions Pour L'installation Et L'entretien page 52

With the unit at full capacity, check that the current absorbed by the motor does not exceed that of the CE marking
(technical plate).
To improve immunity to possible radiated noise to other equipment, it is recommended to use a separate electrical
conduit for powering the product.
The product in question contains an inverter inside which there are direct voltages and currents with high frequency components (see table below).
In the case of single-phase power inverters
In the case of three-phase power inverters
7. COMMISSIONING
On the pump, fully open the suction valve and then energize the system.
7.1. Priming
Do not start the pump without having completely filled it with liquid, providing that it is completely filled, with clean water, through the
appropriate hole, after removing the filler cap.
Dry running causes irreparable damage to the mechanical seal.
The filler cap will then need to be screwed back on carefully.
If the product is equipped with software-assisted priming, see chapter 12.2 Filling system operation.
7.2. Starting
For the first start-up, follow these steps:
To start correctly, make sure that you have followed the instructions in the following paragraphs: 6 INSTALLATION e 7
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COMMISSIONING and its subsections;
Check the actual presence of water;
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Provide electrical power;
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If there are built-in electronics, follow the instructions (see chapter 13 CONTROL PANEL).
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7.3. Precautions
In the event that hot water is to be pumped, stop the pump only after excluding the heat source and allowing a period of time to elapse so
that the temperature of the liquid drops to acceptable values, so as not to create excessive temperature increases inside the pump body.
For a long period of shutdown, close the shut-off device of the suction pipe, and if necessary, if provided, all auxiliary control connections.
If long periods of inactivity are to be expected, plan short-term commissioning cycles to avoid deterioration and malfunctions.
FROST HAZARD: when the pump remains inactive for a long time at a temperature below 0°C, it is necessary to proceed with the
complete emptying of the pump body through the drain plug, to avoid any cracking of the hydraulic components. This operation is also
recommended in case of prolonged inactivity at normal temperature.
Check that the liquid spill does not damage property or people, especially in systems that use hot water. Do not close the drain plug
until the pump is used again. Starting after a long period of inactivity requires the repetition of the operations described in paragraph 7.2
listed above. To avoid unnecessary overloads of the motor, carefully check that the density of the pumped liquid corresponds to that
used in the design phase: remember that the power absorbed by the pump increases proportionally to the density of the conveyed liquid.
8. MANUTENZIONE
Before starting any work on the system, disconnect the power supply and wait at least 5 minutes. The system is exempt from routine
maintenance. In the event that it is necessary to drain the liquid to carry out maintenance, check that the leakage of the liquid does not
damage property or people, especially in systems that use hot water. In addition, the legal regulations for the disposal of any harmful liquids
must be observed. After a long period of operation, there may be some difficulties in disassembling the parts in contact with water: for
this purpose, use a special solvent found on the market and, where possible, a suitable extractor. It is recommended not to force on the
various parts with unsuitable tools.
8.1. Periodic checks
The product in normal operation does not require any kind of maintenance. However, it is advisable to periodically check the current
absorption, the manometric head with the mouth closed and the maximum flow rate, which allows you to identify faults or wear in
advance. The mechanical seal does not normally require any control step. You will only have to check that there is no leak of any kind.
If there is a different seal, check the dedicated appendix.
ENGLISH
Typology of possible ground fault currents
Alternating Pulsating Single-Pole
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Table 3
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Direct With high-frequency components
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