Grundfos Alpha2 26-99SU is a powerful 115V stainless variable speed circulator pump, designed to replace most high head & high-flow circulators on the market and suitable for a wide range of open and closed-loop applications, including hydronic & radiant floor heating, domestic hot water (DHW) and chilled water cooling.
G150 union style connections (unions sold separately).
Cross-References:
- Grundfos: UPS 26-99F
- Taco: 0011-F4, VR3452
- B&G: ecocirc XL
- Push button allows to select between (8) consecutive operating modes: (3) proportional pressure curves, (1) proportional pressure AUTOAdapt (automatic system adjustment), (3) constant pressure curves and (1) constant pressure AUTOAdapt
- AUTOAdapt (default factory setting) automatically adjusts the pump performance to the size of the system and load over time
- Built-in removable check valve
- High-efficiency ECM motor uses up to 85% less electricity
- LED indicator lights for pump settings & alarms for easy set-up and diagnostics
- Stainless steel body for open-loop or closed-loop applications
- Permanent magnet motor technology with robust startup enables pump to restart indefinitely when rotor is locked
- cULus Listed; NSF/ANSI 61 & 372, MH26400 Listed
- Casing: Stainless Steel
- Circulator Pump Type: variable speed, high-efficiency w/ ECM motor and (8) modes - (4) proportional pressure (incl. AUTOAdapt) and (4) constant pressure (incl. AUTOAdapt)
- Connections: G150 Union style
- Circulator Height (Flange to Flange): 7-1/8"
- Electrical Specs: 115V, 60 Hz, 120W max, 1.7 A max
- Head Range: 0-42 ft
- Flow Range: 0-26 GPM
- Motor HorsePower: 1/6 HP
- Operating Temperature Range: 14°F - 230°F
- Max Operating Pressure:Â 150psi
- Dimensions (Depth x Width x Height): 5.91" x 6.57" x 6.5"
- Weight (lbs): 7.38 lbs
36 months from the date of manufacture / 30 months from the date of installation
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