Grundfos SCALA1 User Manual

15.8 The pump does not stop
Grundfos Eye
Indicator
light
Automatic
reset
Cause Remedy
- -
The pump cannot deliver the
necessary discharge pressure.
Replace the pump.
- -
The existing pipes are leaking or
defective.
Repair the pipes.
- -
The non-return valve is blocked or
missing.
Clean the valve or fit a
non-return valve.
15.9 The pump gives electric shocks
Grundfos Eye Indicator light Automatic reset Cause Remedy
- - -
Defective earth
connection.
Connect the earth connection to the
pump according to local regulations.
15.10 Twin booster system fault finding
In twin configuration, the same fault finding applies.
SCALA1 alarms act in the following way:
• Dry-run alarm: Pump alarm: stops one pump first
and then the other in case of dry-running.
• Max. runtime: System alarm: stops the entire
system.
• Cycling protection: System alarm: stops the
entire system.
Pumps deliver different performances
Grundfos Eye Indicator light Automatic reset Cause Remedy
- -
Two different models of
SCALA1 connected.
Connect the same size
models.
32
English (GB)

Grundfos SCALA1 Specifications

General

Inlet/Outlet Size	1 inch
Weight	10 kg
Mains Frequency	50/60 Hz
Pumped liquid	Clean water
Housing Material	Composite
Pump Type	Self-priming, multistage centrifugal pump
Power Supply	1 x 230 V
Liquid Temperature Range	0°C to 45°C
Protection Class	IPX4D
System Pressure	Max. 10 bar
Approvals	CE, EAC
Installation Type	Horizontal