99287244 Alpha 1 High-Efficiency Variable-Speed Circulator, 21 gpm Flow Rate, 15 mm Inlet x 15 mm Oulet, 115V, 1 ph, Cast Iron - Discontinued

GRU99287244 MFG #: 99287244
  • Inlet Size: 15 mm
  • Outlet Size: 15 mm
  • Voltage Rating: 115 V
  • Amperage Rating: 0.1 to 0.65 A
  • Dimensions: 6.5 in H x 7 in D x 4 in W
  • Enclosure Type: IP42
  • Frequency Rating: 60 Hz
  • Impeller Type: Composite
  • Manufacturer: Grundfos
  • Manufacturer #: 99287244
  • Maximum Pressure: 145 psi
  • Motor HP: 1/16
  • Phase: 1
  • Series: Alpha 1
  • Temperature Rating: 32 to 104 degF Ambient
  • Type: High-Efficiency
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.

Grundfos Variable-Speed Circulator, High-Efficiency, Series: Alpha 1, 21 gpm Flow Rate, 15 mm Inlet, 15 mm Outlet, 5 to 45 W Power, 115 VAC, 0.1 to 0.65 A, 60 Hz Frequency, 1 ph, 145.04 psi Maximum, In-Line Cord, Composite Impeller, Surface Mounting, 32 to 104 deg F Ambient, IP42 Enclosure, 4 in W x 7 in D x 6.5 in H
  • Features
  • 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
  • Cast iron rotated flange with line cord