Sauermann Si-83 Condensation Drain Pump, for Boilers and Air Conditioners up to 40kW, with 2L Tank

The Sauermann Si-83 Pack 1 is a compact centrifugal pump with a 2-liter tank, designed for draining condensate from condensing boilers, high-efficiency gas furnaces, and air conditioners up to 20 kW. Robust, quiet, and easy to install, it represents the evolution of tank-based pumps thanks to its compact design and reliable materials.

Ideal for residential applications, it can be installed on the floor, wall, or suspended from the ceiling. The pump tolerates acidic condensate (pH > 2.5) and high temperatures up to 80°C for short periods. It is equipped with an anti-fouling float and a removable check valve for easy maintenance.

Technical Specifications:

* Code: SI83CE01UN23
* Voltage: 230 V – 50 Hz
* Power consumption: 115 W
* Current: 1.4 A
* Maximum flow rate: 65 l/h (at 5.4 m)
* Maximum pressure: 5.7 m (at zero flow)
* Tank capacity: 2 liters
* Condensation temperature: up to 55°C (80°C max for 10 minutes)
* Condensation acidity tolerance: pH > 2.5
* Thermal protection: 120°C with automatic reset
* Operating cycle: 7% (16 s ON / 212 s OFF)
* Sound level: = 45 dBA at 1 meter
* Protection: IP44
* Insulation class: I
* Alarm contact: NC 5 A – 250 V
* Certifications: CE, EAC, RoHS, WEEE
* Packaging dimensions: 315 x 151 x 175 mm
* Weight with packaging: 1.83 kg

Kit includes:

* Centrifugal pump with 2-liter tank
* Removable Ø 10 mm check valve
* 1.8 m power cable with EU plug
* 1 m NC alarm cable with plug
* Ø 6 mm straight fitting and clamp
* Mounting kit: 2 screws and 2 wall plugs

Applications:

* Condensing boilers (up to 40 kW)
* Air conditioners and ducted systems (up to 20 kW)
* High-efficiency gas ovens