Pos.
Terminal
Description
11
X8
Fault, pump 1
12
X7
Operation, pump 2
13
X6
Operation, pump 1
14
81-88
Level switches
14
81, 82
15
91 (GND), 92 (signal), 93 (12
V)
Analog sensors
16
-
Connection, PC Tool
17
-
Not used
18
0.1 A T
Control-current fuse
19
-
Piezoresistive pressure sensor
module
20
-
DIP switches, not used
21
-
Connection, non-rechargeable
9 V battery
*1
The high-level alarm can be used as a level detection backup when installed in parallel to
an analog level sensor. The high-level alarm starts and stops the pump by float switch
hysteresis with a factory-set stop delay of 60 seconds. You can adjust the stop delay by
means of Grundfos PC Tool.
5.5 Optional equipment
5.5.1 Accessories
For available accessories, see the link or QR code below.
http://net.grundfos.com/qr/i/98288126
5.5.2 Drainage pump
If the lifting station is installed in a basement with penetrating groundwater, we recommend that
you install a drainage pump in a separate pump sump below floor level. In some countries, a
drainage pump or only a pump sump is required.
Multilift MD1, MDV | |
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