Grundfos CME User Manual

English (GB)
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13.45.2 "Backup operation"
Backup operation is possible with two pumps of
same size and type connected in parallel. Each
pump requires a non-return valve in series with the
pump.
One pump is operating continuously. The backup
pump is operated for a short time each day to
prevent seizing up. If the duty pump stops due to a
fault, the backup pump starts.
13.45.3 Setting up a multipump system
You can set a multipump system in the following
ways:
• Grundfos GO and wireless pump connection
• Grundfos GO and wired pump connection
• Advanced control panel and wireless pump
connection
• Advanced control panel and wired pump
connection
See step-by-step descriptions below.
Grundfos GO and wireless pump connection
1. Power on both pumps.
2. Establish contact to one of the pumps with
Grundfos GO.
3. Set the needed analog and digital inputs via
Grundfos GO according to the connected
equipment and the required functionality. See
section 13.42 Assisted pump setup.
4. Assign a pump name to the pump using Grundfos
GO. See section 13.36 "Pump name".
5. Disconnect Grundfos GO from the pump.
6. Establish contact to the other pump.
7. Set the needed analog and digital inputs via
Grundfos GO according to the connected
equipment and the required functionality. See
section 13.42 Assisted pump setup.
8. Assign a pump name to the pump using Grundfos
GO. See section 13.36 "Pump name".
9. Select the "Assist" menu and choose Setup of
multi-pump system.
10. Select the desired multipump function. See
section 13.45.1 "Alternating operation" and
13.45.2 "Backup operation" above.
11. Press [>] to continue.
12. Set the time for pump changeover i.e. the time at
which the alternation between the two pumps is
to take place.
13. Press [>] to continue.
14. Select "Radio" as the communication method to
be used between the two pumps.
15. Press [>] to continue.
16. Press "Select pump 2".
17. Select the pump from the list.
18. Press [>] to continue.
19. Confirm the setting by pressing [Send].
20. Press [Finish] in the "Setup complete" dialog box.
21. Wait for the green indicator light in the middle of
Grundfos Eye to light up.
This step applies only if you have selected
"Alternating operation, time" and if the
motors are fitted with FM 300.
Use the [OK] or button to identify the
pump.

Grundfos CME Specifications

General

Liquid temperature range	0 °C to +60 °C
Maximum operating pressure	10 bar
Series	CME
Frequency	50/60 Hz
Max Pressure	10 bar
Pump Type	Centrifugal
Material	Stainless steel
Applications	pressure boosting, irrigation
Pumped liquid	Clean water
Approvals	CE
Max Liquid Temperature	60°C
Power Supply	1-phase or 3-phase