Specification

2. Selection guide
This guide helps you to size and select the most suitable SCALA product.
Follow the instructions below to determine which product variant is best suited to your needs.
1. Choose the right pump for your application.
Application Pump
Suitability rat-
ing
Recommendation
City water mains
SCALA1 ● ●
SCALA2 ● ● ●
Due to integrated frequency converter, SCALA2 can adapt the speed to varying water
pressure in the city mains, delivering constant pressure in all taps any time. PN10 rating
ensures robustness towards maximum system pressure.
Shallow well
SCALA1 ● ● ● SCALA1 construction offers better suction capabilities with different modes to handle air.
SCALA2 ● ●
Water storage tank (above
ground level)
SCALA1 ● ●
SCALA2 ● ● ●
Adjustable constant pressure for SCALA2 enables user to select the desired pressure
for the entire home, and thus avoids overpressure.
Water storage tank (below
ground level)
SCALA1 ● ● ● SCALA1 construction offers better suction capabilities with different modes to handle air.
SCALA2 ● ●
Roof tank
SCALA1 ● ●
SCALA2 ● ● ●
Adjustable constant pressure for SCALA2 enables user to select the desired pressure
for the entire home and thus avoids overpressure.
Water transfer
SCALA1 ● ● ●
External input and fixed speed in SCALA1 will make sure water is transferred as quickly
as possible from point A to B, when needed.
SCALA2 ●
Garden irrigation
SCALA1 ● ● ● External input and calendar function are a perfect combination for irrigation purposes.
SCALA2 ●
Kitchen
SCALA1 ● ●
SCALA2 ● ● ● SCALA2 delivers constant pressure to all taps regardless of the inlet pressure.
Bathroom
SCALA1 ● ●
SCALA2 ● ● ● SCALA2 delivers constant pressure to all taps regardless of the inlet pressure.
2. Size your pump.
Number of floors 1-5 taps 6-10 taps 11-20 taps 21-50 taps
4
SCALA1 3-45 or
SCALA2 3-45
SCALA1 5-55 SCALA1 Twin 5-55 SCALA1 Twin 5-55
3
SCALA1 3-45 or
SCALA2 3-45
SCALA1 3-45 or
SCALA2 3-45
SCALA1 5-55 SCALA1 Twin 5-55
2
SCALA1 3-35 or
SCALA2 3-45
SCALA1 3-45 or
SCALA2 3-45
SCALA1 5-55 SCALA1 Twin 5-55
1
SCALA1 3-25 or
SCALA2 3-45
SCALA1 3-35 or
SCALA2 3-45
SCALA1 3-45 or
SCALA2 3-45
SCALA1 Twin 5-55
Preconditions:
•
A tap pressure of 3 bar (43.5 psi) is considered. To achieve pressure of 4 bar (58 psi), remove two floors.
• The inlet is flooded. For suction operation, remove a floor for every 3 metres (9.84 ft) of suction depth.
• A tap flow between 9 and 12 l/min average usage and half of the taps opened at the same time will be considered.
SCALA
2
5
Selection guide