Grundfos SCALA2 User Manual

English (GB)
7
3.3.4 How to reduce noise in the installation
Vibrations from the pump may be transferred to the
surrounding structure and create noise in the
20-1000 Hz spectrum, also called the bass
spectrum.
Correct installation using a vibration-damping rubber
pad, flexible hoses and correctly placed pipe
hangers for rigid pipes can reduce the noise
experienced by up to 50 %. See fig. 4.
Place pipe hangers for the rigid pipes close to the
connection of the flexible hose.
Fig. 4 How to reduce noise in the installation
3.3.5 Installation examples
Fittings, hoses and valves are not supplied with the
pump.
We recommend to follow the installation examples in
sections 3.3.6 to 3.3.8.
3.3.6 Mains water pressure boosting
Fig. 5 Mains water pressure boosting
We recommend to use flexible hoses and
mount the pump on a vibration-damping
rubber pad.
TM06 4321 1915
Rubber pad
Pipe hanger for rigid pipe
Flexible hose
TM06 4347 2015
Pos. Description
1 Highest tapping point
2 Pipe hangers and supports
3 Isolating valves
4 Flexible hoses
5 Bypass valve
6
Optional pressure-reducing valve on the
inlet side if the inlet pressure can exceed
10 bar (145 psi)
7
Optional pressure-relief valve on the outlet
side if the installation cannot withstand a
pressure of 6 bar (87 psi)
8
Drip tray. Install the pump on a small stand
to prevent the ventilation holes from being
flooded.
9 Pressure gauge
10 Mains water pipe
49
1
37
2
5
10
6
2
3
8

Grundfos SCALA2 Specifications

General

Max Inlet Pressure	6 bar
Pumped Liquid	Clean water
Maximum Operating Pressure	10 bar
Installation	Indoor
Mains Frequency	50/60 Hz
Connection Size	1 inch
Pump Type	Self-priming, centrifugal pump
Max Flow	3 m³/h
Power Supply	1 x 200-240 V
Power Consumption	550 W
Liquid Temperature Range	0°C to +45°C
Protection Class	X4D
Weight	10 kg
Approvals	CE, EAC
Maximum Ambient Temperature	+55°C
Type of Inlet Connection	G 1 inch
Type of Outlet Connection	G 1 inch
Material	Stainless steel