Pump Accessories Installation; Well Probe - Lorentz PS Série Manuel D'installation Et De Fonctionnement

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Pump Accessories Installation

9 Pump Accessories Installation
CAUTION – Installing a SunSwitch is
mandatory for all PS1800 CS-F and all
PS4000 pump systems. Operating without
a SunSwitch can lead to increased wear or
damage the pump. Such damage is
excluded from the warranty.
CAUTION – Never let the pump run dry.
Dry running will damage the pump and
void the warranty. LORENTZ requires a dry
run protection for every pump system.
CAUTION – Installing a surge protector at
all sensor inputs is recommended,
damaged inputs due to electric surges are
not covered by the warranty.
Figure 22: Well probe fixing

9.1 Well Probe

The well probe contains a mechanical float with a magnet
inside. When the probe is submerged, the float rises, and the
magnet actuates a switch. The switch closes (makes contact)
to indicate the presence of water. If the water level drops
below the probe, the float drops, and the switch opens
(breaks contact): The controller will stop the pump. When
the water level recovers and the switch closes again, the
controller will delay the restart for 20 minutes for the water
level to recover. To force a quick restart, turn the controller
off, then on again. The switch is sealed, so the contacts
never touch the water.
Submersion depth – The maximum submersion depth is
50 meters.
Fixing – Along with the probe two cable ties are provided.
For a pump that is to be installed in a vertical position,
clamp the probe to the pipe just above the pump outlet,
as shown in "Figure 22: Well probe fixing". Splice the two
wires of the probe using the splice kit components that are
packed with the probe. The assembly procedure is the same
as the main pump splice.
Wiring to the controller – The well probe must be wired
to the controller at terminal 1 and 2, cf. "7.7.1.3 Pump
Accessories Wiring" on page 28.
Plug controller - The well probe must be connected to the
controller at socket B2, cf. "7.7.2 Controllers with pre-wired
Plugs" on page 32
Potential problems with the well probe in surface
water – The probe has a moving float. It is highly resistant
to deposits and debris. However, the float can become stuck
where algae or water creatures are present in surface water..