Sauermann SI-10 Universal Quiet Condensate Pump for Mini Split AC Systems

Sauermann SI-10 is a universal quiet condensate removal pump — also known as a mini pump, AC drain pump, or condensate removal pump — designed for wall-mounted split AC, ceiling cassette, fan coil, and ducted systems where gravity condensate drainage is not possible. Piston pump technology delivers quiet, reliable operation trusted by HVAC engineers across the UK.

Key Specifications

• Max lift (head): 10m
• Max flow rate: 1.2 l/hr
• Tank capacity: 0.06 litres
• Voltage: 100–240V AC, 50/60Hz (universal)
• Pump type: Piston pump
• Safety device: Built-in float switch with alarm output
• Alarm output: Volt-free contact
• Outlet connection: 6mm (1/4")
• Dimensions: 110 x 55 x 45mm
• Weight: 0.22kg
• Mounting: Multi-orientation
• Housing colour: White
• Country of manufacture: France
• SKU: SI-10

Compatible Systems

• Wall-mounted split AC units
• Ceiling cassette units
• Fan coil units (FCUs)
• Ceiling concealed and ducted systems
• Heating and cooling equipment (universal compatibility)

Compatible Brands

Suitable for use with Daikin, Mitsubishi Electric, Fujitsu, Panasonic, Samsung, LG, Hitachi, Toshiba, and most other AC and fan coil brands.

When to Use This Pump

• When gravity condensate drainage is not possible — common in wall-mounted splits installed above the external drain level, basement installations, or long horizontal pipe runs
• Universal voltage (100–240V) makes it suitable for both UK and international AC equipment without adaptation
• Multi-orientation mounting allows flexible installation in tight or awkward spaces
• Piston pump technology provides quieter operation with low maintenance requirements
• Volt-free alarm contact allows integration with building management systems or AC unit alarm inputs

Need It Sooner? Available Alternatives

If the SI-10 is currently out of stock or on extended lead time, these in-stock alternatives offer comparable performance for mini split and wall-mounted AC installations:

• Sauermann SI-20 Ultra-Slim Mini Condensate Pump — world's slimmest pump at 27 x 27mm, 19 dBa, ideal for tight installations behind wall-mounted units
• Sauermann SI-30 Mini Piston Pump with Remote Detection Float Switch — same piston pump technology as the SI-10, adds remote float switch for concealed evaporator trays
• Aspen Mini Orange FP2212 — market-leading Aspen mini pump, widely used across UK AC installations, 10m head

Frequently Bought With

• DiversiTech RVT-1/4 Condensate Drain Hose 6mm 30m (P482) — standard drain hose for condensate pump installations
• DiversiTech RVT-3/8 Condensate Drain Hose 10mm 30m (P484) — larger bore drain hose option
• Sauermann ACC00919 Self-Sealing Drainage Fittings 6mm – Pack of 5 — for secure, tool-free hose connections
• Jubilee Clip 9–12mm (P500) — for securing the outlet hose connection

Also in the Sauermann Mini Pump Range

• Sauermann SI-20 Ultra-Slim Mini Condensate Pump — world's slimmest pump at 27 x 27mm, 19 dBa
• Sauermann SI-30 Mini Piston Pump with Remote Detection Float Switch — remote float switch for concealed evaporator trays
• Sauermann SI-83 2 Litre Condensate Tank Pump — high-volume tank pump for larger systems

Frequently Asked Questions

Can the SI-10 be used with a Daikin wall-mounted split?

Yes. The SI-10 is universally compatible with most wall-mounted split systems where condensate cannot drain by gravity.

What is the difference between the SI-10 and the Sauermann SI-83 tank pump?

The SI-10 is a compact inline pump suited to single indoor units. The Sauermann SI-83 is a larger 2-litre reservoir tank pump designed for higher condensate volumes.

Does the SI-10 work on 240V UK systems?

Yes. The SI-10 has universal voltage input (100–240V AC, 50/60Hz), compatible with standard UK 240V AC equipment.

Does this pump include a safety float switch?

Yes. The SI-10 includes a built-in float switch with volt-free alarm contact output.

Is this pump suitable for R32 systems?

Yes. The pump handles condensate water only and is refrigerant-agnostic — compatible with R32, R410A, R22, and all other common refrigerants.

Browse our full range of mini condensate pumps and condensate pump accessories.