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Pos.
11
12
13
14
14
15
16
17
18
19
20
21
*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.
Terminal
X8
X7
X6
81-88
81, 82
91 (GND), 92 (signal), 93 (12
V)
-
-
0.1 A T
-
-
-
Multilift MD1, MDV | | 25
Description
Fault, pump 1
Operation, pump 2
Operation, pump 1
Level switches
*1
High-level alarm
Analog sensors
Connection, PC Tool
Not used
Control-current fuse
Piezoresistive pressure sensor
module
DIP switches, not used
Connection, non-rechargeable
9 V battery
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