Alpha2 15-55SF Variable Speed Stainless Steel Circulator Pump w/ IFC, 1/16 HP, 115V

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The 99163937 from Grundfos is a Alpha2 15-55SF model stainless steel variable speed circulator with AutoADAPT feature. It's designed for use in a variety of heating, plumbing and cooling applications. Certified lead-free, approved for potable water applications and meets NSF61 & 372 standards.
Note: this model replaces older Alpha model 59896879.

Features:

New and improved version of Grundfos bestselling Alpha circulator;
AutoADAPT feature allows the circulator to adapt to changes in the hydronci system to maximize energy savings;
Push button allows to select between AutoADAPT, constant speed (3 settings - Hi/Med/Low) or contant pressure (3 settings) modes;
Large LED display;
Built-in check valve;
Insulation jacket and (2) gaskets (O-rings) included;
Permanent magnet motor technology with robust startup enables pump to restart indefinitely when rotor is blocked;
Stainless steel body for closed or open-loop heating and potable applications;
Standard flange accepts Grundfos GF15/26 and other brand flanges;
Hardwire model;
Certified lead-free;
Made in the USA.

Technical Specifications:

Voltage: 115V;
Amperage: 0.65A;
Hertz: 60;
Phase: 1;
Watts: 5 - 45W (depending on mode selected);
Wiring: Hardwired;
Temperature Range: 36°F - 230°F;
Max Pressure: 150 psi;
Flow range: 0 - 21 GPM;
Head Range: 0 - 19 ft of head;
Material: Stainless Steel;
Application: Plumbing or Heating.

Warranty:

1 year from the date of installation

Product Specs
Amperage:	0.65A
Application	Plumbing or Heating.
Flow Range:	0 - 21 GPM
Head Range:	0 - 19 ft of head
Hertz:	60
Material1	Stainless Steel
Max Pressure:	150 psi
Phase:	1
Temperature Range:	36°F - 230°F
Voltage	115V
Watts:	5 - 45W (depending on mode selected)
Wiring:	Hardwired