Install Instructions
Table Of Contents
- English (GB)
- 1. General information
- 2. Product introduction
- 3. Receiving the product
- 4. Installation requirements
- 5. Mechanical installation
- 6. Electrical connection
- 7. Starting up the product
- 8. Control functions
- 9. Setting the product
- 10. SCALA1 twin booster configuration
- 11. Service
- 12. Starting up after standstill
- 13. Taking the product out of operation
- 14. Storage
- 15. Fault finding
- 15.1 Grundfos Eye SCALA1
- 15.2 The pump does not start
- 15.3 The pump is not running
- 15.4 The pump is running
- 15.5 The pump cuts out during operation
- 15.6 The pump performance is insufficient
- 15.7 The pump starts and stops too frequently
- 15.8 The pump does not stop
- 15.9 The pump gives electric shocks
- 15.10 Twin booster system fault finding
- 15.11 Fault resetting
- 16. Technical data
- 17. Approvals
- 18. Disposing of the product
9.2.3.1 Selecting the performance mode
If the performance mode needs to be changed from the default
setting, follow these steps:
1. Remove the pump cover.
a. Unscrew and remove the priming plug from the pump.
b. Loosen and remove the inlet and outlet connections from the
pump.
c. Loosen and pull away the pump cover to remove it from the
pump.
TM075488
Remove the pump cover
2. Locate the performance mode knob.
3. Using a size 10 hex key, turn the knob to the desired selection.
Self-priming
Air handing
Positive inlet
TM075489
Rotate knob to select performance mode.
4. Return the pump cover and reconnect the priming plug and
connections.
9.3
Resetting to factory settings
To reset the pump to factory settings via the HMI:
1. Press and hold [Enable/Disable] and [Reset] buttons
simultaneously for 5 seconds.
Enable/Disable button
Reset button
It is also possible to reset to factory settings in Grundfos GO
Remote.
10. SCALA1 twin booster configuration
1
3
2
TM075400
SCALA1 twin booster system
Pos. Description
1 Inlet and outlet manifolds
2 Isolation valves
3 Twin base plate
Not pictured: communication
cable and fixing screws
SCALA1 can be easily set up as a twin boosting system by using
the accessory set and Grundfos GO Remote.
In the twin setup, the two SCALA1 pumps communicate together
via a cable included in the accessory set.
The twin boosting system is beneficial when the water flow demand
is higher, or a system with a standby pump is required.
Once connected, a priority will be assigned automatically to the
pumps.
In the twin booster configuration, an HMI on one pump will act as
system HMI, meaning that all actions done on one pump HMI will
be propagated to the other pump in the system.
All the alarms and functions of the pump are also available for the
twin system.
10.1
Operation modes and parameters
Once SCALA1 is installed as a twin booster system, it can run in
two different operation modes.
Duty/Standby
In Duty/Standby operation mode, only one pump will run at a time in
the twin system. This means that the maximum performance of the
system will be the same as the maximum performance of a single
SCALA1 unit. In case one pump fails to start, the other one will run.
The pumps will switch priority at the start based on the alternation
settings.
17
English (GB)