Installation; Pit With One Pump And A Ciu Unit; Pit With Two Or More Pumps And A Ciu Unit; Replacement Of Pump - Grundfos IO Instrucciones De Instalación Y Funcionamiento

4. Installation

For further information about setup of
Note
multi-pit mode, contact your local
Grundfos company.
Warning
Before beginning installation, make
sure that the power supply has been
switched off and that it cannot be
accidentally switched on.
The installation procedure depends on the number of
pumps to be installed, i.e. one or more pumps. In the
following, only systems with one CIU unit will be
described.
To ensure easy and correct installation, we
recommend you to carefully follow the order of
installation below.

4.1 Pit with one pump and a CIU unit

1. Install the pump in the pit.
2. Install the CIU unit.
See installation and operating instructions for
the CIU unit.
The GENIbus connection is not used
Caution
in this application.
3. Connect all relevant leads to the IO module.
See section 5. IO module.
4. Connect all relevant leads to the CIM module,
if fitted.
See installation and operating instructions for
the relevant CIM module.
5. Switch on the power supply to the CIU unit and
the pump. The CIU unit automatically establishes
communication with the pump.
6. Check that the CIU unit communicates with the
pump, using the Grundfos R100 remote control.
See section 6.1.1 CIU unit and pump status.

4.2 Pit with two or more pumps and a CIU unit

1. Install the pumps in the pit.
2. Install the CIU unit.
See installation and operating instructions for
the CIU unit.
The GENIbus connection is not used
Caution
in this application.
3. Connect all relevant leads to the IO module.
See section 5. IO module.
4. Connect all relevant leads to the CIM module,
if fitted.
See installation and operating instructions for
the relevant CIM module.
5. Switch on the power supply to the CIU unit and
pump 1. The CIU unit automatically establishes
communication with the pump.
6. Check that the CIU unit communicates with
pump 1, using the Grundfos R100 remote
control.
See section 6.1.1 CIU unit and pump status.
7. Switch on the power supply to pump 2.
8. Check with the R100 that the CIU unit
communicates with pump 2.
See section 6.1.1 CIU unit and pump status.
9. Repeat points 7 and 8 until all pumps have been
switched on.

4.3 Replacement of pump

1. Switch off the power supply to the system.
2. Replace the pump.
3. Switch on the power supply to the system.
4. Establish communication with the pump, using
the R100, and reset all addresses.
See section 6.4.6 System self-configuration.
5. Set new addresses with the R100.
See section 4.2 Pit with two or more pumps and a
CIU unit.

4.4 Removing a pump for service

1. Switch off the power supply to the system.
2. Remove the pump.
3. Switch on the power supply to the system.
4. Establish communication with the pump, using
the R100, and reset all addresses.
See section 6.4.6 System self-configuration.
5. Set new addresses with the R100.
See section 4.2 Pit with two or more pumps and a
CIU unit.
When a pump is removed from the
system, the warning or alarm
Note
"Communication fault, pump" will
appear.

4.5 EMC-correct installation

In order to ensure correct and stable function, it is
very important to follow the guidelines below.
Grundfos recommendations
Use only screened signal cables for all inputs and
outputs.
Any isolating plastic tape between
screen and sheath must be removed
Note
before mounting the cable in the earth
clamp.
Do not twist screen ends, as this will
Note
destroy the screen effect at high
frequencies.
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