Question 1

What is the function of the non-return valve on the TALLAS D-BOOST 1100/45 pump and how to maintain it?

Accepted Answer

The non-return valve (NRV - Non-Return Valve) integrated into the TALLAS D-BOOST 1100/45 (part no. 5) is an essential component located on the suction side of the pump. Its main function is to prevent the backflow of water into the suction piping when the pump is stopped. This maintains pressure in the system and allows the pump to restart without the risk of draining the circuit, thus protecting the motor and internal components from damage caused by dry running.

On the D-BOOST 1100/45, the non-return valve works in conjunction with the integrated suction filter (part no. 1) to maintain a stable water column up to a maximum suction depth of 8 meters. It also ensures effective priming of the pump and smooth operation of the pressure boosting system.

To maintain the non-return valve, start by turning off the pump and unplugging it from the power supply. Drain the pump by opening the drain plug (part no. 6) after closing any upstream valves. Then, remove the cap of the non-return valve with the accessory provided in the installation manual.

Carefully remove the non-return flap and clean it to remove any dirt or debris that may hinder its proper functioning. Mineral deposits or fine particles can block the flap and reduce the pump's efficiency. Use clean water to rinse the flap and check that it is not damaged or cracked.

After cleaning, reassemble the parts in reverse order: reinstall the flap, then close the cap of the non-return valve. Fill the pump completely with clean water through the filling hole (part of the transparent filter no. 1) before restarting. Regular maintenance of the non-return flap ensures the longevity of your TALLAS D-BOOST 1100/45 and optimal operation of the pressure boosting system.

Question 2

How does the thermal overload protection work on the TALLAS D-BOOST 1100/45 booster and what should be done in case of activation?

Accepted Answer

The TALLAS D-BOOST 1100/45 booster is equipped with an automatic thermal protection that cuts off the power to the motor when its temperature exceeds a critical threshold. This mechanism protects the motor and its electrical components from damage related to overheating. When the protection is triggered, the motor stops automatically and the cooling time is approximately 15 to 20 minutes. After this period, the pump automatically restarts if no problem persists.

Possible causes of overheating: Overheating generally occurs due to prolonged operation or unfavorable operating conditions. The main causes are dry running (without water), a clogged suction filter, an obstruction of the ventilation air around the motor, or continuous use beyond the pump's capabilities. A poorly ventilated environment or a buildup of dust around the motor can also promote overheating.

What to do in case of activation: As soon as the protection is triggered, immediately cut off the power supply to the pump by unplugging it. Allow the motor to cool for about 20 minutes before any intervention. Once cooled, thoroughly inspect the pump to identify and eliminate the cause of the problem.

Checks to perform: Ensure that the suction filter is not clogged (clean it if necessary by rinsing it under running water with a soft brush). Check that the pump is filled with clean water and is not running dry. Ensure that the area around the motor is well-ventilated and free of obstructions. Inspect the suction and discharge pipes for any clogging or obstruction. Also, check that the electrical connections are in good condition and properly secured.

Restarting: After performing these checks and eliminating the identified cause, wait for the complete cooling time, then reconnect the pump. If the thermal protection is triggered again immediately or very frequently, this may indicate a more serious electrical problem (motor short circuit). In this case, stop the pump immediately and consult a qualified technician or customer service.

Prevention: To avoid repeated activations, follow these rules: never start the pump without fully filling it with water (about 4 liters), immediately stop the pump if the water runs out to avoid dry running, and regularly clean the suction filter. Also, ensure that the pump is installed in a horizontal position and in a well-ventilated area.

User manual TALLAS Booster : user manuals and guides in PDF

Models TALLAS Booster most viewed

Other categories TALLAS

Recent questions about Booster TALLAS