Grundfos

Grundfos 99287250 Alpha 1 High-Efficiency Variable-Speed Circulator, 21 gpm Flow Rate, 15 mm Inlet x 15 mm Oulet, 115 VAC, 1 ph

99287250 MFG #: 99287250
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Grundfos 99287250 Alpha 1 High-Efficiency Variable-Speed Circulator, 21 gpm Flow Rate, 15 mm Inlet x 15 mm Oulet, 115 VAC, 1 ph
  • Amperage Rating: 0.1 to 0.65 A
  • Cord Type: In-Line
  • Dimensions: 4 in W x 7 in D x 6.5 in H
  • Enclosure Type: IP42
  • Flow Rate: 21 gpm
  • Frequency Rating: 60 Hz
  • Impeller Type: Composite
  • Inlet Size: 15 mm
  • Manufacturer Name: Grundfos
  • Maximum Pressure: 145.04 psi
  • Mounting Type: Surface
  • Outlet Size: 15 mm
  • Phase: 1
  • Power Rating: 5 to 45 W
  • Series: Alpha 1
  • Temperature Rating: 32 to 104 deg F Ambient
  • Type: High-Efficiency
  • Voltage Rating: 115 VAC
The ALPHA1 is an energy efficient, variable speed circulator built with reliable, electronically controlled Grundfos permanent magnet motor (ECM) technology. Featuring three-constant pressure control modes, an LED display and easy-to-use push button controls, the ALPHA1 is the perfect solution for domestic hydronic heating and hot water recirculation applications.
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Systems with Constant/Varying Flow, One/Two Pipe Systems, Underfloor-Heating, Domestic Hot-Water Recirculation and Systems Where Night Setback is Required
ECM Permanent Magnet Motor
  • ALPHA1 can replace more than 30 other pump models
  • ALPHA1 features the highest torque rating and most powerful start feature in its class which attempts to restart indefinitely every seven seconds in blocked rotor conditions
  • Designed with trusted Grundfos ECM (permanent magnet motor) technology which has been used by Grundfos for more than 15 years
  • ALPHA1 features three-constant pressure control modes with easy to use push button settings
  • Large LED display shows energy watt consumption and flow indicator in gals per minute
  • ALPHA1 is compatible with either a line cord or terminal box for conduit connections
  • Extremely quiet 19.2 dB(A) operation - Tested in one of the best European sound labs
  • ALPHA1 features an integrated check-valve and nut captures for flanges
  • Magnetite resistant design with a stainless-steel bearing plate, robust ceramic shaft and ceramic bearing rings
  • Stainless flange with line cord
  • https://youtu.be/BGu_SSM7E6Y
ANSI/UL 778|ANSI/NSF 61/372|cETLus Listed|cULus Listed|CAN/CSA C22.2 #108|Canadian ICES-003|EN 1.4308 Housing|ETL|FCC