System For Two-Pump (Dlc) Operation With Four Float Switches; System For Two-Pump Operation (Dlc) With Submersible Level Transducer And Two Backup Float Switches - Grundfos SLC Series Installation And Operating Instructions Manual

6.5 System for two-pump (DLC) operation with four
float switches
Read all warnings listed in section
before you begin any work.
The pump is controlled by the liquid level in the pit. For wiring
diagrams, see section 4.3 Electrical
For functional information, see section
controlled option.
The use of backup float switches is optional.
Fig. 16 Two-pump system (DLC) with four float switches
6.5.1 Electrical connection
For all field connections to the panel, i.e. main power connection,
pump power connection, float switches, pump overtemperature
sensor, seal failure sensor, dry alarm contacts, see wiring
diagram, fig. 7, for terminal wiring locations.
Fit all cables/wires through the Pg cable entries and gaskets
(NEMA4X).
The maximum amperage is stated on the control panel
nameplate.
If required according to local regulations, install an external
disconnect switch.
16
4.3 Electrical connection
connection.
9.7.3 DLC, float-switch-
6.6 System for two-pump operation (DLC) with
submersible level transducer and two backup float
switches
Read all warnings listed in section
before you begin any work.
The pump is controlled by the liquid level in the pit. For wiring
diagrams, see section 4.3 Electrical
For functional information, see section
controlled option.
The use of backup float switches is optional.
Fig. 17 Two-pump system (DLC) with submersible level
transducer and optional two backup float switches
6.6.1 Electrical connection
For all field connections to the panel, i.e. main power connection,
pump power connections, submersible pressure transducer,
optional high/low level float-switch backup, pump
overtemperature sensor, seal failure sensor, dry alarm contacts,
see wiring diagram, fig. 8, for terminal wiring locations.
Fit all cables/wires through the Pg cable entries and gaskets
(NEMA4X).
The maximum amperage is stated on the control panel
nameplate.
If required according to local regulations, install an external
disconnect switch.
4.3 Electrical connection
connection.
9.7.4 DLC, transducer-