DOS & DON'TS

AC pumps have a fixed direction of rotation that cannot be changed.
Three-phase pumps, on the other hand, can be connected incorrectly, causing the motors to rotate in the wrong direction. There is a direction of rotation arrow on the fan cover of the pump. If the direction of rotation is incorrect, a qualified electrician must be notified in order to set it correctly.

To check that the pump runs smoothly, insert a screwdriver (or Allen key) into the slot/opening at the end of the motor shaft (fan side) and turn the fan wheel by hand in the direction of motor rotation. If necessary, the fan cover can also be removed for this purpose.
It is essential to turn the motor shaft, e.g. after winter storage, before starting up the pump.
If the pump then runs sluggishly or makes unusual noises, it must be checked by a specialist.
Gate valves and ball valves can be installed for easier handling and disassembly during the inspection. These allow the pump to be removed and repaired in the event of a fault.

At branches, pipe bends or transitions to new pipe cross-sections, vortices are created in the water. For this reason, a straight pipe of at least 20 cm must be installed upstream of the suction and discharge connection of the pump in order to achieve a uniform and smooth flow pattern.

To avoid technical failures, the following conditions must be ensured:

• Kondenswasser ist zu vermeiden (auf ausreichende Be- und Entlüftung achten)
• Mindestabstand von 50 mm von der Lüfterhaube zur Wand
• Begrenzung der Umgebungstemperatur auf maximal 40 °C

The pump and all pipes must be visually inspected at regular intervals for leaks or other leaks.
If a major leak is detected, the system must be disconnected from the mains immediately and must not be operated until it has been repaired.

In the event of leakage or leaks, a sufficiently dimensioned floor drain must be planned in the technical room so that the respective quantities of water can drain away without problems. The size of the floor drain must be adapted to the local conditions!

The suction strainer must be checked and cleaned regularly. It keeps coarse dirt away from the pump and prevents blockages and malfunctions.
If the suction strainer is dirty, the flow rate decreases and there is no longer sufficient filtration.
The pump must never be operated without a suction strainer!

If the pump runs dry, frictional heat is generated in the seals and sealing surfaces and O-rings are damaged, which leads to leaks. In addition, the rising temperatures can cause damage to the plastic parts. If the pump has run dry, have the system checked by qualified personnel. Damage caused by the pump running dry is not covered by the warranty.

Chlorine tablets should not be placed in the pump's pre-filter. Due to the suction effect in the pre-filter housing, it is not possible to predict how quickly they will dissolve, which can lead to overdosing.
For correct dosing, chlorine tablets should ideally be placed in a skimmer basket, dosing float or chlorine dosing sluice in order to achieve optimum results.

The pump must be properly drained and disconnected from the power supply in good time before the first frost. The pump must be stored in a dry and frost-proof place in winter and protected from dust with a cloth.
If the pump is not drained sufficiently, (sometimes irreparable) frost damage may occur over the winter.
Pipes that may be at risk should also be drained in good time.