Description
The Grundfos 99490917 (ALPHA2 26-99 SU) is a Circulator Pump — High Efficiency ECM. ALPHA2 series high-efficiency ECM circulator. Rated 115V, 1-Phase, 60 Hz. Applications include HVAC: Heating, HVAC: Air Conditioning, Residential heating.
Genuine Grundfos Part
OEM component engineered and manufactured to Grundfos specifications. Maintains pump performance and warranty coverage.
Full Traceability
Genuine Grundfos parts carry manufacturer traceability from production through delivery. No counterfeit risk.
Authorized Source
PumpStop is an authorized Grundfos distributor. All parts are genuine — not aftermarket, not surplus.
Confirm Compatibility
Always verify part number against your pump model number and serial number before ordering. Contact PumpStop for parts identification assistance.
Technical Support Available
PumpStop technical team can identify correct parts from pump nameplate data, serial number, or model code. Call (781) 281-8905 or chat.
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| Model Number | 99490917 |
| Product Series | ALPHA2 |
| Series Description | Circulator Pump — High Efficiency ECM |
| Voltage | 115V |
| Phase | 1-Phase |
| Frequency | 60 Hz |
| Insulation Class | F |
| Protection Class (IP) | IP42 |
| Nominal Flow | 6.6US gpm |
| Max Operating Pressure | 145.04psi |
| Max Fluid Temperature | 203°F |
| Max Ambient Temperature | 131°F |
| Nominal Pipe Bore | 1 1/2inch |
| Pipe Pressure Rating | PN 10 |
| Pipe Standard | G |
| Impeller Material | Composite |
| Housing Material | Stainless steel |
| Approvals / Certifications | UL, NSF |
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 115V, 1-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 203°F or max ambient temperature 131°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. ALPHA2 pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations. |
| Maintenance | Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation. |
- EAN
- 5713829959316
- Approvals
- UL
- Built-in motor protection
- NONE
- Connection
- PN 10
- Density
- 61.35 lb/ft³
- Enclosure class (IEC 34-5)
- IP42
- Gross weight
- 11.5 lb
- Housing
- Stainless steel
- Impeller
- Composite
- Insulation class (IEC 85)
- F
- Length
- 180 mm
- Liquid temperature range
- 14 .. 203 °F
- Mains frequency
- 60 Hz
- Material Pricing Group
- 50
- Maximum current consumption
- 1.7 A
- Maximum head
- 32.48 ft
- Maximum operating pressure
- 10 bar
- Minimum current consumption
- 0.05 A
- Model
- A
- Net weight
- 6.39 lb
- Pressure rating for connection
- PN 10
- Product family
- ALPHA2 26-99, North America
- Pump housing
- Stainless steel
- Pumped liquid
- Water
- Range of ambient temperature
- 32 .. 131 °F
- Rated flow
- 6.6 US gpm
- Rated voltage
- 1 x 115 V
- Real Time
- 1 Available on 10/13/2023 Plant: Allentown Update with real time availability and Net price
- Sales region
- USA
- Selected liquid temperature
- 140 °F
- Size of connection
- 1 1/2 inch
- Terminal box position
- 6H
- TF class
- 95
- Thermal protec
- ELEC
- Type of connection
- G
Dimensional Drawing
Wiring Diagram