Regulating The Rated Current Of The Pumps (Imax) And The Pump Starting And Stopping Levels (Only With Depth Sensor Connected); System Operation; Operation With 2 Floats Or Level Probes; Operation With 3 Floats Or Level Probes - DAB E.Box Plus Instructions Pour L'installation Et La Maintenance

If level probes are used and not floats, set DS_B4 at ON
•
If a depth sensor is used, set DS_B7 at ON and position DS_B5 according to the desired scale.
•
7.12 Regulating the rated current of the pumps (Imax) and the pump starting and stopping levels (only with depth sensor
connected)
With a straight tip screwdriver, position the indices in the centre of the graduated scales, as shown, so that:
Imax indicates the rated current of the installed pumps, which you can find on the pump data plate.
•
SP represents the maximum level in the tank (LMAX) that you want the water to reach during normal operation.
•
DP represents the minimum level in the tank (LMIN) that you want the water to reach during normal operation. DP is expressed as a
•
percentage of SP.
Attention, SP and DP have significance only if a depth sensor is used. For their meaning, refer to Figure 43. The scale adapting
label must be applied on SP.
7.13

System operation:

Operation with 2 floats or level probes

The operating logic is the following:
Float or level probe connected to input B starts P1 and stops both pumps.
•
Float or level probe connected to input C starts pump P2.
•

Operation with 3 floats or level probes

The operating logic is the following:
Float or level probe connected to input B starts pump P1.
•
Float or level probe connected to input C starts pump P2.
•
Both pumps are stopped on the float or level probe connected to A.
•
Note: the function with 3 floats is used in installations with deep narrow tanks that do not allow an ample travel of the floats!
Note: in the E.box version with display, the correct number of floats or level probes used is displayed automatically.

Operation with depth sensor and display

If a depth sensor is being used, with an E.box with display, it will be possible to set independently the starting level of pump P1, of pump P2, and
the stopping level of both. In particular:
HA is the stopping level of the pumps P1 and P2
•
HB is the starting level of pump P1
•
HC is the starting level of pump P2
•

Figure 42: Regulating the rated current SP and DP

Filling operation with 2 floats
Start
Float or level probe on
Pump P1
B = CLOSED
Float or level probe
Pump P2
C = CLOSED

Table 8: Filling operation with 2 floats

Filling operation with 3 floats
Start
Float or level probe on
Pump P1
B = CLOSED
Float or level probe
Pump P2
C = CLOSED

Table 9: Filling operation with 3 floats

ENGLISH
Float or level probe
B = OPEN
Float or level probe
B = OPEN
Float or level probe on
A = OPEN
Float or level probe on
A = OPEN
94
Stop
Stop