The Grundfos 99490917 is an ALPHA2 26-99 SU variable speed circulator with an electronically commutated (ECM) motor and a stainless steel pump housing with union connections.
ALPHA2 circulators adjust speed to system demand and include the AUTOADAPT setting, which selects the pump curve automatically, along with proportional-pressure, constant-pressure and constant-curve modes. The stainless steel housing makes this version suitable for open systems and domestic hot water as well as heating. The 26-99 size covers flows from 0 to 26 GPM.
Before ordering: this version uses union connections rather than flanges, so confirm you have union fittings for your pipe size and connection type. The pump runs on 115V, single phase.
Specifications
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Brand: Grundfos
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Manufacturer Part #: 99490917
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Series: ALPHA2
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Model: ALPHA2 26-99 SU
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Type: Variable speed ECM circulator
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Body Material: Stainless Steel
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Connection: Union
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Flow Range: 0-26 GPM
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Voltage: 115V, 1 phase, 60 Hz
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Amperage: 1.7 A
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Application: Heating
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UPC: 5713829959316
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Category: Variable Speed Circulators
Documents
See also: variable speed circulators, all Grundfos products.