FP3501

Aspen Endurance FP3501 Boiler Condensate Removal Pump - 550L/h Flow, 5m Head

Aspen Pumps UK logo in orange and white , featuring the brand name for reliable condensate and HVAC pumps at Pipelagging.com, UK.
The Aspen Endurance Boiler Pump is engineered for reliability in demanding boiler applications. With a robust stainless steel motor shaft, it handles acidic condensate (pH >2.2) and temperatures up to 60°C (85°C for short bursts). Delivering a max flow of 550L/h and a max head of 5m, it’s ideal for units up to 200kW. Features IP24 protection, thermal protection, and a 1.5L tank. Perfect for efficient condensate removal.
Ex. VAT
£73.29
Inc. VAT
£87.95

Description

Aspen Endurance Boiler Pump (FP3501)

High‑capacity condensate removal for domestic & commercial Condensing boilers up to 200 kW

Overview

The Aspen Endurance Boiler Pump is engineered for robust performance in boiler condensate removal applications. Ruggedised to enhance reliability, it accommodates short, infrequent temperature spikes up to 85 °C (less than 5 minutes) while maintaining a standard operating temperature of 60 °C. Designed to handle acidic condensate with pH > 2.2 (or lower with a neutraliser), this pump is suitable for boilers up to 200 kW, making it ideal for larger domestic and commercial condensing boilers.

With a maximum flow rate of 550 L/h at 0 m head and a recommended maximum head of 5 m (approx. 55 L/h), the Endurance ensures efficient condensate evacuation. Its 1.5 L tank capacity and quiet operation at 44 dB(A) @ 1 m minimise noise disruption. Powered by 230 VAC at 0.7 A (80 W, 50 Hz), the pump operates non‑continuously with a cycle of 5 minutes on / 5 minutes off for efficiency and longevity.

Installation is straightforward, aided by a built‑in spirit level and IP24 splash‑proof protection. The pump includes four inlets (21–27 mm) and 6 mm / 10 mm outlets, plus a 3.0 A normally‑closed high‑level safety switch to prevent overflow. A stainless‑steel motor shaft and a thermally protected, maintenance‑free motor ensure durability and safety.

Key Features

  • Stainless steel motor shaft for enhanced durability
  • Max working temp 60 °C (short excursions to 85 °C)
  • Handles acidic condensate (pH > 2.2, or lower with neutraliser)
  • Thermally protected, maintenance‑free motor
  • IP24 protection against water splashes
  • Built‑in spirit level for easy installation
  • High‑level safety switch (3 A normally closed)

Technical Specifications

Specifications
ParameterValue
Max. Flow550 L/h @ 0 m head
Max. Recommended Head5 m (≈ 55 L/h flow)
Tank Capacity1.5 L
Sound Level44 dB(A) @ 1 m
Power Supply230 VAC, 0.7 A, 80 W, 50 Hz
OperationNon‑continuous (5 min on / 5 min off)
Appliance ClassClass I
Max. Boiler Output200 kW (682,000 Btu/h)
Max. Water Temperature60 °C
Inlets4 × 21–27 mm
Outlets6 mm & 10 mm
IP ProtectionIP24
Safety Switch3.0 A Normally Closed
Thermal ProtectionYes

Performance Data (230 VAC, 50 Hz)

For 10 mm Outlet
Head (m)Flow (L/h)Boiler Output (kW)
0550200
1470171
2360131
324087
415055
55520
5.400
For 6 mm Outlet
Head (m)Flow (L/h)Boiler Output (kW)
0300109
121578
215958
310639
46524
53613
5.400

In the Box

  • Endurance Pump
  • Outlet Adapter
  • Clear PVC Hose (6 m × 10 mm)
  • 2 × Cable Ties (200 mm × 4.8 mm)
  • Wall Mounting Clips (removable)

Suggested Accessories

  • Tube Soil Stack Adaptor (FP2038)
  • 1 Amp Fuse (FP2620)
  • Vinyl Tube Braided 1/4” (6 mm) (AX5100)
  • Vinyl Tube Braided 3/8” (10 mm) (AX5101)
  • AX2500 Insulation Sleeve (for condensation prevention on tank exterior)

Installation & Safety

Installation must be performed by a qualified HVAC/R professional. Fit a 3 A fuse in the wiring circuit; consider an inline 1 A fuse (FP2620) for additional protection. Wire the high‑level safety switch to shut down the boiler on fault. After installation, test by filling the tank, checking for leaks, and verifying safety switch operation.

Do not use in oily or dusty environments. Keep discharge hose ≤ 10 mm ID. Maintain regularly by inspecting/cleaning floats and tank. Dispose via WEEE‑compliant recycling.

More Information

Product Name Aspen Endurance FP3501 Boiler Condensate Removal Pump - 550L/h Flow, 5m Head
SKU FP3501
mpn FP3501
Manufacturer Aspen Pumps
Brand Aspen Pumps

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User Guides and Technical Downloads

File Icon FP3500 Manual (1.34 MB)
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