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Grundfos 99287256 ALPHA1 15-55F High-Efficiency Circulator Pump

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Price: $175.95
Item Number: 99287256
Manufacturer Name: Grundfos
Manufacturer Part No: ALPHA11555F

Brochure & Specification Sheets 

The Grundfos ALPHA1 is a high-efficiency, variable speed circulator fitted with electronically commutated motor. Designed for circulating liquids in heating systems.

It features a constant pressure control mode with three settings. The intuitive one-button operation and LED display makes the selection of the settings easy. The large LED display shows the current energy consumption in Watts and estimated flow in gallons per minute.

ALPHA1 materials and design are resistant to blockage from magnetite found in hydronic systems.

The robust startup enables ALPHA1 to continuously attempt to restart – indefinitely – in blocked rotor conditions.

ALPHA1 is complete with an integrated check-valve, and nut captures for flanges.

For power connection two options are available with either line cord or terminal box for conduit connections.
performance-curve

Product name ALPHA1 15-55F
Product No. 99287256
EAN 5713826610364

Technical

Head max 18.05 ft
TF class 110
Approvals on nameplate ETL, FCC

Materials

Pump housing Cast iron
EN 1561 EN-GJL-150
Impeller Composite

Installation

Range of ambient temperature 32 .. 104 °F
Maximum operating pressure 145.04 psi
Type of connection GF
Pipe connection 1 1/2
Pressure stage PN 10
Port-to-port length 6 1/2 in

Liquid

Pumped liquid Water
Liquid temperature range 35.6 .. 230 °F
Selected liquid temperature 140 °F
Density 61.35 lb/ft³

Electrical data

Power input - P1 5 .. 45 W
Main frequency 60 Hz
Rated voltage 1 x 115 V
Maximum current consumption 0.1 .. 0.65 A
Enclosure class (IEC 34-5) IP42
Insulation class (IEC 85) F
Built-in motor protection NONE
Thermal protec ELEC

Controls

Pos term box 6H

Others

Net weight 6.34 lb
Gross weight 7.1 lb
Shipping volume 0.28 ft³
Sales region USA

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