Grundfos SCALA1 User Manual

15.6 The pump performance is insufficient
Grundfos Eye
Indicator
light
Automatic
reset
Cause Remedy
- - Pump inlet pressure is too low. Check pump inlet conditions.
- - Pump is undersized.
Replace the pump with a
larger pump.
- -
Inlet pipe, inlet strainer or
pump are partially blocked by
impurities.
Clean the inlet pipe or the
pump.
- - Leakage in the inlet pipe. Repair the inlet pipe.
- -
Air in the inlet pipe or the
pump.
Prime the inlet pipe and the
pump. Check pump inlet
conditions.
15.7 The pump starts and stops too
frequently
Grundfos Eye
Indicator
light
Automatic
reset
Cause Remedy
- -
Leakage in suction pipe or
air in the water.
Restore the water supply or
repair suction pipe.
- -
A tap has not been closed
entirely after use.
Check that all taps have been
closed. See section Anti-
cycling.
- -
Minor leakage in the
system.
Check the system for leakages.
See section Anti-cycling.
31
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