Installation Position - Lorentz PS Série Manuel D'installation Et De Fonctionnement

50 Pump Installation

8.5.3 Installation Position

The pump may be mounted horizontally or vertically.
CAUTION – When installing the pump
vertically, the pump head must be facing
downwards.
Rigid mounting – is not required in most installations. In
a non battery system, the pump starts gradually and does
not jerk with the start. In a battery system it will jerk slight-
ly, but can be stabilized by mounting it to a small wood-
en board. The pump may be hung vertically on a rope. Ob-
serve the pump to ensure pipes are not overstressed or loos-
ened as it starts.
CAUTION – Do not mount the pump direct-
ly to a wall or wood floor in your home.
This will increase the noise.
Changing the pump head position – The pumps' fit-
tings can be changed to face sideways or downwards. The
pump head may be rotated to a different position by loosen-
ing the clamp screws that secure the pump to the motor. Be-
fore installing the pump, inject water into the inlet and run
the pump.
The pump may be installed either max. 3 m below (gravi-
ty feed) or above (suction mode) the water level. Thereby the
geodetic head between liquid level and pump inlet must not
exceed 3 m. The suction lift may be significantly reduced by
flow resistance in the suction line (if the pipes are very long
and/or insufficiently dimensioned).