GRUNDFOS DATA BOOKLET SCALA Multistage centrifugal boosters, 50/60 Hz
SCALA Table of contents 1. Product introduction . . . . . . . . . . . . . . . . . . . 3 Features and benefits Applications . . . . . . . Pumped liquids. . . . . Product range. . . . . . Performance range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 .3 .3 .4 .4 2. Selection guide . . . . . . . . . . . . . . . . . . . . . . .
1 Product introduction SCALA 1. Product introduction Features TM075413 Auto start-stop Left to right: SCALA1, SCALA2 Grundfos SCALA pumps are all-in-one integrated pressure boosters designed for domestic use and ensure a constant supply of clean water to households, gardens and light commercial applications. SCALA1 Grundfos SCALA1 is a self-priming, multistage pump, which combines all the components of a pressure booster into a compact composite enclosure.
1 SCALA Product introduction 1.4 Product range Nominal flow rate Pump type Max. head [m (ft)] [m3/h (gpm)] SCALA1 3-25 3 (13) 25 (82) SCALA1 3-35 3 (13) 35 (114) 45 (147) SCALA1 3-45 3 (13) SCALA1 5-25 5 (22) 25 (82) SCALA1 5-55 5 (22) 55 (180) SCALA2 3-45 3 (13) 45 (147) 1.5 Performance range The performance curves show the range of the SCALA pumps.
2 Selection guide SCALA 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.
3 SCALA Installation and operation 3. Installation and operation 3.1 Mechanical installation 3.1.3 Inlet and outlet pipes Placing the pump above ground is generally a convenient way to establish water or rainwater supply. The pump can be installed both indoors and outdoors. The product should be placed as close as possible to the liquid to be pumped to minimize the length of the inlet pipe. The motor is water-cooled, but we still recommend a clearance of 0.5 m (1.64 ft) on three sides of the product.
3 SCALA Installation and operation 3.1.4 Maximum system pressure Make sure that the system in which the pump is installed is designed for the maximum pump pressure. When installing a non-return valve in the plumbing system, make sure that the system has an expansion tank at the water heater and that the pressure-relief valve in the water heater is plumbed to a drain. Carry out the installation in accordance with local regulations. The maximum inlet pressure depends on the head at the actual duty point.
3 SCALA Installation and operation 3.2 Installation examples 3.2.2 Suction from a tank We recommend that you follow the installation examples. Valves are not supplied with the pump. 3.2.1 Suction from a well 1 2 2 3 3 4 1 5 A Pos. 8 6 Description 1 Highest tapping point 2 Isolating valve 3 4 Flexible hoses 4 Pipe support 5 Inlet filter 6 Foot valve with strainer H1 Maximum suction lift: 8 m (26.2 ft) H2 Inlet pipe must be submerged at least 0.5 m (1.
3 SCALA 3.2.4 Mains water pressure boosting, SCALA2 1 Installation and operation 3.2.3 Mains water pressure boosting, SCALA1 1 2 2 7 3 9 4 7 3 9 4 10 10 2 5 8 3 6 2 8 3 Mains water pressure boosting, SCALA1 Mains water pressure boosting, SCALA2 Pos. Description Pos.
3 SCALA Installation and operation 3.2.5 Roof tank filling 1 5 2 3 TM075330 4 Pos. Description 1 Float switch 2 External input (switch) cable 3 Pump 4 Water source (tank) 5 Roof tank 3.3 Electrical connection The electrical connection and protection must be carried out in accordance with local regulations. Please also observe the following requirements: • Make sure that the pump is suitable for the power supply to which they are to be connected.
SCALA1 4 SCALA 4. SCALA1 4.3.2 Robust design The pump is designed for long and trouble-free operation. Composite construction combined with excellent corrosion-resistant internal components ensure high robustness in operation. 4.3.3 Easy installation TM075390 SCALA pumps can be installed in three easy steps: • Connecting the pipes. • Priming the pump. • Plugging the pump into a power outlet. The pump will start running after it has been plugged into a power outlet. 4.
4 SCALA 50 Hz 60 Hz H [ft] H [m] 90 28 80 24 SCALA1 3-25 50 Hz 70 30 0 28 80 24 50 12 40 30 8 10 0 0 P1 [W] 0.8 600 0.4 0 0.8 2 1.2 4 1.6 2.0 6 8 2.4 2.8 10 12 3.2 3.6 14 16 4.0 4.4 18 4.8 22 Q 20 300 P1 [W] 0.8 600 0.4 200 100 0 H [m] 100 30 80 25 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 Q [m³/h] 5.2 SCALA1 5-25 50 Hz 0.2 0.0 0.0 3.2 3.6 14 16 3.2 3.6 4.0 4.4 18 4.
4 50 Hz 60 Hz H [m] H [ft] SCALA1 3-45 45 120 80 25 30 80 25 20 60 15 40 10 0 10 5 20 0 0 0.0 P1 [hp] 1.4 1.2 1.0 P1 [W] 20 15 40 20 35 100 0.4 0 0.8 2 1.2 4 1.6 6 2.0 8 2.4 10 2.8 12 3.2 3.6 14 16 4.0 18 4.4 4.8 0 Q [m³/h] 5.2 22 Q 20 5 0.0 [US GPM] P1 [hp] 1.4 1000 1.2 800 1.0 P1 [W] 600 0.6 400 0.6 400 0.0 0 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 Q [m³/h] 5.
4 SCALA SCALA1 4.6 Technical data TM075267 4.6.1 Dimensions and weights Pos. H1 [mm] [inch] H2 [mm] [inch] H3 [mm] [inch] L1 [mm] [inch] B1 [mm] [inch] SCALA1 (all variants) 316 12.4 263 10.4 171 6.7 466 18.4 202 8.0 Weight SCALA1 3-25 [kg] [lb] SCALA1 3-35 [kg] [lb] SCALA1 3-45 [kg] [lb] SCALA1 5-25 [kg] [lb] SCALA1 5-55 [kg] [lb] 11 24.2 12 26.4 12 26.4 12 26.4 14 30.8 4.6.2 Operating conditions SCALA1 14 3-25 3-35 3-45 5-25 5-55 Max.
4 SCALA SCALA1 4.6.3 Electrical data All variants have insulation class F. 50 Hz Pump type Voltage [V] P1 [W (hp)] P2 [W (hp)] n [rpm] In Istart [A] [A] Standby power [W] SCALA1 3-25 1 x 230 550 (0.74) 360 (0.50) 2850 2.58 13.0 1.5 SCALA1 3-35 1 x 230 720 (0.97) 450 (0.60) 2800 3.27 13.0 1.5 SCALA1 3-45 1 x 230 910 (1.23) 580 (0.80) 2800 4.10 17.0 1.5 SCALA1 5-25 1 x 230 650 (0.88) 425 (0.60) 2850 3.00 13.0 1.5 SCALA1 5-55 1 x 230 1200 (1.62) 780 (1.
4 SCALA SCALA1 4.6.4 Construction of SCALA1 5 4 3 2 1 15 10 11 6 7 8 9 18 14 13 12 TM075375 16 17 Exploded view of SCALA1 Material specification 16 Pos.
4 SCALA SCALA1 4.
4 SCALA H [ft] H [m] 26 SCALA1 80 24 3-25 120 22 40 30 20 10 0 H [ft] 18 100 30 80 25 16 14 12 60 10 40 0m 6 4 6m 7m 8m 10 1m 5m 4m 2 20 2m 3m 0 0.5 1.0 1.5 0 2 4 6 2.0 8 2.5 10 12 3.0 3.5 14 4.0 16 4.5 5.0 5.5 Q [m³/h] 18 Q [US GPM] SCALA1 45 3-45 40 25 60 0 0.5 1.0 1.5 0 2 4 6 2.0 8 2.5 10 3.0 12 14 3.5 16 4.0 4.5 5.0 5.
SCALA1 twin booster system 5 SCALA 5. SCALA1 twin booster system Alternate on runtime Pump 1 will be the first to start until it accumulates the defined number of running hours. After that, Pump 2 will start first. Alternate on number of starts Pump 1 will be the first to start until it accumulates the defined number of starts. After that, Pump 2 will start first. 5.1.
5 SCALA SCALA1 twin booster system 5.
5 SCALA SCALA1 twin booster system 5.5 Technical data 5.5.1 Dimensions L2 TM075401 H2 H1 H3 L1 W1 Dimensions of SCALA1 twin system Pos. H1 [mm] [inch] H2 [mm] [inch] H3 [mm] [inch] L1 [mm] [inch] L2 [mm] [inch] W1 [mm] [inch] SCALA1 twin system 360 14.2 210 8.3 92 3.6 614 24.2 360 14.2 473 18.6 5.5.2 Construction of SCALA1 twin system 1 2 TM075400 3 SCALA1 twin system Pos.
6 SCALA SCALA2 6. SCALA2 6.2.2 Self-priming A self-priming pump ensures a stable operation, even if the pump is not fully filled with liquid. The self-priming pump is able to lift liquid from below the inlet level and handle a mix of air and liquid until the pump reaches a fully-primed pumping condition. 6.2.3 Robust design The pump is designed for long and trouble-free operation. Aluminium construction combined with excellent corrosion-resistant internal components ensure high robustness in operation.
6 SCALA SCALA2 6.4 Performance curves 50/60 Hz H [m] SCALA2 45 40 35 30 25 20 15 10 5 0 0.0 P1 [W] 0.4 0.0 0.8 1.2 0.2 1.6 2.0 0.4 2.4 0.6 2.8 3.2 0.8 3.6 4.0 1.0 4.4 1.2 Q [m³/h] Q [l/s] 600 500 400 200 100 0 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.
6 SCALA SCALA2 6.5 Technical data TM063305 6.5.1 Dimensions and weights Dimensions of SCALA2 Pos. H1 [mm] [inch] H2 [mm] [inch] H3 [mm] [inch] L1 [mm] [inch] W1 [mm] [inch] Weight [kg] [lb] SCALA2 302 11.9 234 9.2 114 4.5 403 15.9 193 7.6 10 22 6.5.2 Operating conditions SCALA2 3-45 Max. ambient temperature, 60 Hz models 45 °C (113 °F) Max. ambient temperature for 1 x 200-240 V, 50 Hz models 55 °C (131 °F) Max.
6 SCALA TM063306 SCALA2 6.5.4 Construction of SCALA2 Exploded view of SCALA2 Material specification Pos. Component Material 1 Combined pump and stator housing Aluminium, Composite and EN 1.4301 / AISI 304 2 Control box cover Composite 3 Pump cover Composite 4 Shaft seal Carbon/Ceramic 5 Chamber stack (four stages) Composite 9 Non-return valve, outlet Composite 10 Pressure tank complete Composite, Butyl and EN 1.
6 SCALA SCALA2 6.6 Approvals and markings TM075404 TM075405 TM074611 Safety approvals TM074610 ACS TM074613 Drinking water approvals TM070539 Combined WATER QUALITY Drinking water system component NSF/ANSI 61 MH26400 NSF/ANSI 372 Water circulation pump 99K4 6.7 Suction performance H [ft] H [m] 150 46 SCALA2 44 140 130 42 40 38 120 110 36 34 32 100 90 30 28 26 80 70 24 22 20 60 50 18 16 14 40 12 10 30 8 1m 6 3m 8m 4 2 0 4m 5m 10 6m 7m 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.
Accessories 7 SCALA 7. Accessories 7.1 SCALA twin accessory set 7.1.1 Construction of SCALA twin accessory set 2 1 Twin accessory set TM075402 TM075392 6 3 4 5 When an installation requires a two-pump solution, SCALA pumps can be easily connected using this set. It includes all the necessary components to set up SCALA pumps as a twin booster system. This set includes: Exploded view of SCALA twin accessory set Pos.
7 SCALA Accessories 7.2 Inlet filter 7.2.1 Filter specifications Micron rating 250 Efficiency percentage 80 Max. working pressure [bar (psi)] 8 (116) Max. differential pressure [bar (psi)] 0.8 (11.6) TM075393 Max. working temperature 45 °C (113 °F) p P [psi] [bar] 3.0 Inlet filter accessory 0.20 2.5 0.16 • Clean water provides long life for the pump. • Quick and easy installation. • Easy maintenance and cleaning.
7 SCALA 7.3 Flexible hoses Product number Flexible hose set 99891639 Flexible hose set (with brass elbow connection) 99891647 TM080290 Description Accessories 7.3.1 Product numbers The flexible hose range provides a safe and taint-free conveyance of potable water supplies in domestic and commercial applications.
8 SCALA Product numbers 8. Product numbers Guide on how to read the product number tables Abbreviation Description SNI Warranty card for Indonesia is included. ARB Printed installation and operating instructions in English (GB) and Arabic are included. CCC CCC approval on the nameplate. CSA CSA approval on the nameplate. 8.
Pump model Voltage Plug type/cable Country of origin Product number SCALA1 3-35 CCC 1 x 230 V 50 Hz No plug Hungary 99530434 SCALA1 3-45 CCC 1 x 230 V 50 Hz No plug Hungary 99530435 SCALA1 5-25 CCC 1 x 230 V 50 Hz No plug Hungary 99530436 SCALA1 5-55 CCC 1 x 230 V 50 Hz No plug Hungary 99530437 Pump model Voltage Plug type/cable Country of origin Product number SCALA1 3-25 ARB 1 x 230 V 60 Hz No plug Hungary 99530438 SCALA1 3-35 ARB 1 x 230 V 60 Hz No plug Hungary 9953
8 SCALA Product numbers 8.
9 Grundfos Product Center SCALA 9. Grundfos Product Center Online search and sizing tool to help you make the right choice. From the international view, you can select your specific country to view the product range available to you. International view: http://product-selection.grundfos.com All the information you need in one place Performance curves, technical specifications, pictures, dimensional drawings, motor curves, wiring diagrams, spare parts, service kits, 3D drawings, documents, system parts.
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