31
Fig.3
POSITIONING
•
The pumps are of a self-suction type even though assembly below the swimming pool or
tank water level is advised to improve performance.
•
Should it be necessary to install the pump above the water level, the difference in height
should not be more than 2 metres. Ensure that the suction tube is as short as possible
since a long tube increases suction time and facility load loss.
•
It should be ensured that the pump is free from possible flooding and it is given dry
ventilation.
SAFETY INDICATIONS
ALL THE ELECTRICAL INSTALLATIONS MUST COMPLY WITH STANDARD: EN 60335-2-41
“All 230 V single-phase or 400 V electrical units must be installed at a minimum distance of 3,5
meters from the edge of the pool. In the case of a modification on the filtration system, the
manufacturer must be informed”.
ELECTRICAL UNIT
•
The electrical unit should have a multiple separation system with contact opening of at
least 3 mm.
•
Connection to the mains can only be done using a rigid cable. In the event that a flexible
cable is used this should have terminals to connect it to the pump motor terminals.
•
In the three-phase motor a motor guard with heat-magnetic protection needs to be used.
•
A protection differential of 0.03 A is needed for any pump in order to protect from
electrical escapes (shown in diagrams).
•
Three-phase motors should be protected from overload by a safety switch for the motor.
•
The heat relay regulation data for the single-phase motor are merely illustrative since the
motor comes with an incorporated protector.
