Product Overview
The Grundfos SCALA2 3-45 model 93013251 is a 115V variable-speed water booster that integrates the pump, motor, pressure sensor, controller, and tank in one compact assembly. The controller adjusts pump speed as demand changes to help maintain the selected water pressure across compatible household fixtures. This makes the unit suitable for properly sized residential pressure-boosting, storage-tank, and water-supply applications where demand varies throughout the day.
The confirmed performance data lists a rated flow of 13.2 GPM, maximum flow of 20.3 GPM, rated head of 88.59 ft, and maximum head of 147.6 ft. The “3-45” model name is not a 3-to-45 GPM range. Actual delivery depends on the required pressure, inlet pressure, elevation, suction conditions, pipe diameter, fittings, and simultaneous fixture demand.
This 115V model uses a 6.56 ft power cord and US plug, with a confirmed maximum current consumption of 4.9A. The unit carries drinking-water approvals identified as NSF/ANSI 61 and 372. Confirm the electrical circuit, source-water suitability, system pressure, and complete duty point before installation. Replacement references shown for this product include 98562818, 96860172, and 96860195; verify the full application before substitution.
Key Features:
- Integrated variable-speed water booster
- Helps maintain the selected pressure as demand changes
- 115V single-phase operation
- Pump, motor, sensor, controller, and tank in one unit
- Built-in operating diagnostics and protection functions
- 1 in. NPT male inlet and outlet
- Drinking-water approvals identified as NSF/ANSI 61 and 372
Common Uses:
- Residential water-pressure boosting
- Improving pressure from a compatible municipal supply
- Storage-tank or cistern supply to a home
- Compatible garden and light irrigation demand
Technical Specifications:
-
Model: SCALA2 3-45
-
Product Number: 93013251
-
Voltage: 115V single phase
-
Power Input: 550W
-
Rated Motor Output: 0.603 HP
-
Maximum Current: 4.9A
-
Rated Flow: 13.2 GPM
-
Maximum Flow: 20.3 GPM
-
Rated Head: 88.59 ft
-
Maximum Head: 147.6 ft
-
Maximum Operating Pressure: 145.04 PSI
-
Maximum Inlet Pressure: 87 PSI
-
Connections: 1 in. NPT male inlet and outlet
-
Liquid Temperature Range: 32-113°F
-
Power Cord: 6.56 ft, US 115V plug
-
Enclosure Type: Type 3
Dimensions:
-
Height: 11.9 in.
-
Length: 15.9 in.
-
Width: 7.6 in.
-
Weight: 21.3 lb
Installation and Sizing Notes:
Use the SCALA2 pump curve and calculate the required flow at total dynamic head. Confirm circuit capacity, incoming pressure, suction conditions, pipe sizing, water temperature, drainage, service access, and freeze protection. Follow the linked Grundfos specification sheet and installation manual.
FAQ:
Does “3-45” mean the pump provides 45 GPM?
No. The confirmed maximum flow is 20.3 GPM.
What is the maximum head?
The confirmed maximum head is 147.6 ft, not 230 ft.
How does SCALA2 manage changing demand?
The variable-speed controller adjusts pump output to help maintain the selected pressure.
What older product numbers are referenced?
98562818, 96860172, and 96860195 are listed as replacement references; confirm compatibility before substitution.
Why Buy From Big Frog Supply?
Big Frog Supply provides clear technical information, helpful support, and convenient online ordering for residential water-pressure systems.
