UPS 26-99 FC - Heat pump Grundfos - Free user manual and instructions
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| Brand | Grundfos |
| Model | UPS 26-99 FC |
| Category | Heat Pump Circulator Pump |
| Product Type | Circulator Pump |
| Port Size | 1" (DN 25) Threaded |
| Maximum Flow Rate | 3.5 m³/h |
| Maximum Head | 9 m |
| Speed Settings | 3 Speeds (Manual Selector) |
| Power Input | 50–150 W (Dependent on Speed) |
| Voltage | 230 V ~ 50/60 Hz |
| Insulation Class | F |
| Protection Rating | IP44 |
| Liquid Temperature Range | -20 °C to +110 °C |
| Maximum Ambient Temperature | +40 °C |
| Maximum Operating Pressure | 10 bar |
| Pump Housing Material | Cast Iron |
| Impeller Material | PP (Polypropylene) |
| Shaft Material | Stainless Steel |
| Weight (Approx.) | 2.5 kg |
| Dimensions (L x W x H) | 180 mm x 100 mm x 150 mm |
| Connection Type | Threaded (R 1" Male) |
| Installation Orientation | Horizontal (Shaft Horizontal) |
| Maintenance | No Lubrication Required |
| Certifications | CE, WRAS (for heating) |
Frequently Asked Questions - UPS 26-99 FC Grundfos
How do I change the speed setting on the Grundfos UPS 26-99 FC?
The pump has a three-position selector switch on the terminal box. Turn it to select desired speed (I, II, or III). Always disconnect power before adjusting.
What type of fluid can be used with this pump?
Use clean water or water-glycol mixtures with up to 30% glycol. The pump is designed for closed heating systems.
How do I bleed air from the pump?
Open the vent screw on the pump housing slightly until water flows out without air bubbles, then close. Ensure the system is pressurized.
What is the maximum operating pressure?
The maximum operating pressure is 10 bar (1 MPa). Exceeding this may damage the pump.
How do I wire the pump to the power supply?
Refer to the wiring diagram inside the terminal box cover. Use a suitable disconnect device and overload protection. Connect L, N, and ground.
Why is my pump making noise?
Common causes: air in the system, cavitation due to low pressure, or debris. Bleed the pump, check system pressure, and clean the impeller if needed.
How often should I clean the pump?
No regular cleaning is required. If debris accumulates, disassemble the pump (isolate and drain) and rinse the impeller and housing.
What is the warranty period for this pump?
Grundfos offers a 2-year warranty from date of purchase for manufacturing defects. Register your product for warranty validation.
Can I use this pump for domestic hot water?
No, this pump is designed for closed heating systems and heat pumps. For domestic hot water, use a potable water pump.
How can I tell if the pump is running?
Listen for a hum or vibration. Check the differential temperature across the pump – a warm housing indicates operation. Some models have a running indicator.
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USER MANUAL UPS 26-99 FC Grundfos
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Product information
Brand : Grundfos
Model : UPS 26-99 FC
Category : Heat pump