Grundfos SCALA1 5-55 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 5-55 Specifications

General

Product Name	Grundfos SCALA1 5-55
Category	Water Pump
Max Head	55 m
Max Flow Rate	5 m³/h
Inlet/Outlet Size	1"
System Pressure	10 bar
Enclosure Class	IPX4D
Pumped Liquid	Clean water
Frequency	50/60 Hz
Max Pressure	10 bar
Motor Type	Permanent Magnet Motor
Protection Class	X4D
Liquid Temperature	0°C to 45°C
Inlet Pressure	6 bar
Approvals	CE, EAC