Hydro Multi-E In System Without Inlet Pressure; User Interfaces; Standard Control Panel - Grundfos Hydro Multi-E Series Installation And Operating Instructions Manual

9.3 Hydro Multi-E in system without inlet pressure

Make sure that the power is switched off on the main
switch and the circuit breakers.
Do not start the pumps until they have been filled
with liquid.
Hydro Multi-E systems with CME pumps require a
positive inlet pressure during startup and operation.
The following startup procedure therefore only
applies to Hydro Multi-E systems with CRE or CRIE
pumps.
When you have carried out the mechanical and electrical
installation described in section
follows:
1. Check that Hydro Multi-E corresponds to the order and that no
single parts have been damaged.
2. Check that the precharge pressure in the diaphragm tank is
0.7 times the required outlet pressure (setpoint).
Measure the precharge pressure while the system is
pressureless.
3. Connect water and power supplies to the system.
4. Open all pump inlet valves.
5. Close all pump outlet valves, and prime all pumps and the
inlet pipe.
Vent screw
Fig. 27 Position of vent screw and filling screw
6. Switch on the power supply with the main switch.
7. Start pump 1 by pressing the start/stop button on the pump
control panel.
8. Vent pump 1 using the vent screw.
9. Slowly open the outlet valve approximately 50 %.
10. Repeat steps 9 and 11 for the other pumps in the system.
11. Slowly fully open all pump outlet valves.
12. Wait for a few minutes.
13. Set the desired outlet pressure.
If you change the outlet pressure, change the
diaphragm tank precharge pressure accordingly.
14. Check that the pumps are cutting in and out, thus adjusting
the performance to the demand.
Hydro Multi-E is now in automatic mode and ready for operation.
The standard settings can be changed using Grundfos Go
Remote, see section11. Multimaster function
panel.
16
6. Installation, proceed as
Filling screw
or advanced control

10. User interfaces

WARNING
Hot surface
Death or serious personal injury
- Only touch the buttons on the display as the
product may be very hot.
You can configure pump settings using the following user
interfaces:
•

Standard control panel

See section 10.1 Standard control
• Advanced control panel
See section 10.2 Advanced control panel
• Grundfos GO Remote.
See section 11. Multimaster
If the power supply is switched off, the settings will be stored.
10.1 Standard control panel
Fig. 28 Standard control panel
Pos. Symbol Description
Grundfos Eye
Shows the operating status of individuals
1 pump.
See section
information.
2 - Light fields for indication of setpoint.
Changes the setpoint and resets alarms
3
and warnings.
Enables radio communication with
4 Grundfos GO Remote and other products of
the same type.
Makes the pump ready for operation or
starts and stops the pump.
Start:
If the button is pressed when the pump is
stopped, the pump will only start if no other
functions with higher priority have been
enabled. See section
5
settings.
Stop:
If the button is pressed when the pump is
running, the pump will always be stopped.
When the pump is stopped via this button,
the "Stop" text next to the button will
illuminate.
panel.
function.
1
2
3
4
Stop
5
17. Grundfos Eye for further
16. Priority of