Sauermann SI-83 2 Litre Condensate Tank Pump for AC & Boiler Systems
£73.44
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Sauermann SI-83 2 Litre Condensate Tank Pump for AC & Boiler Systems
SI-83
£73.44
Sauermann SI-83 Pack 1 — 2 Litre Condensate Tank Pump | SI83CE01UN23
The Sauermann SI-83 is a compact centrifugal tank condensate pump with a 2-litre reservoir, redesigned from the inside out to be the most compact and easiest-to-maintain tank pump in its class. Suitable for residential air conditioning systems up to 20kW and heating units (gas condensing boilers, high-efficiency furnaces) up to 40kW. Comes with a dedicated Smartphone App for installation and maintenance guidance.
Key Features
- 2-litre tank — handles high condensate volumes from larger AC and boiler systems
- One-piece centrifugal pump with integrated barb end check valve
- Stainless steel motor shaft — exceptional durability and reliability
- Removable anti-return valve — no need to remove the pump from the installation to clean
- Tolerates acidic condensates, pH >2.5 — suitable for gas condensing boilers
- Built-in safety switch — NC 5A resistive 250V
- Thermal protection at 120°C (auto-reset)
- IP44 protection rating
- Smartphone App for installation and maintenance (iOS & Android)
- CE / EAC certified | RoHS compliant | Made in France
Technical Specifications
| Part Number | SI83CE01UN23 / SI83CE41UN23 / SI83CE71UN23 |
| Tank Capacity | 2 litres |
| Mains Supply | 230V~ 50Hz |
| Max Discharge Head | 5.4m |
| Max Pressure (zero flow) | 5.7m |
| Max Flow Rate | 26 L/h (at 1m head, 5m tube) |
| Outlet Connection | Ø 10mm internal diameter |
| Sound Level | ≤45 dBA at 1m |
| Max Condensate Temp | 55°C (80°C short peaks, 10 min) |
| Max Condensate Acidity | pH >2.5 |
| Safety Switch | NC 5A resistive 250V |
| Thermal Protection | 120°C auto-reset |
| IP Rating | IP44 |
| Weight (with packaging) | 1.83kg |
| Box Dimensions | 315 × 151 × 175mm |
| Country of Origin | France |
Kit Contents
- One-piece centrifugal pump with 2-litre tank
- Integrated barb end check valve, Ø ext. 10mm
- 1.8m power cord with plug
- Built-in safety switch, 1m wires, plug
- 2 screws, 2 plugs
- Straight connector with tube and zip tie for Ø 6mm int. tubes
Applications
- Residential air conditioning up to 20kW — wall-mounted splits, ceiling cassettes, ducted systems
- Gas condensing boilers up to 40kW
- Condensing high-efficiency gas furnaces
- Fan coil units (FCUs)
- Multiple indoor units draining to a single collection point
SI-83 vs SI-10 — Which Do I Need?
- Sauermann SI-10 — compact inline mini pump for single wall-mounted splits
- Sauermann SI-83 — 2-litre centrifugal tank pump for larger systems, cassettes, boilers, or multiple indoor units
Also in the Sauermann Range
- Sauermann SI-10 — universal quiet mini pump, 10 m head
- Sauermann SI-20 — world's slimmest mini pump, 27×27mm, 19 dBa
- Sauermann SI-1805 — high-volume tank pump for larger commercial systems
Frequently Bought With
- Castel DH-ADP96 Flexible Condensate Drain Hose — 50m Coil
- Sauermann ACC00211 Tee 6mm Hose Connectors — Pack of 5
Frequently Asked Questions
- Can the SI-83 be used with a ceiling cassette AC unit?
- Yes. The 2-litre tank handles higher condensate volumes. Check the required lift against the 5.4m max discharge head.
- Can the SI-83 be used for boiler condensate removal?
- Yes. It tolerates acidic condensates down to pH 2.5, making it suitable for gas condensing boilers and high-efficiency furnaces.
- What is the difference between the SI-83 and the SI-10?
- The SI-10 is a compact inline pump for single wall-mounted splits. The SI-83 is a 2-litre centrifugal tank pump for higher-volume applications.
- Does this pump include a safety switch?
- Yes. Built-in safety switch triggers on high water level to protect against overflow.
- Browse our full range of condensate pumps and Sauermann products.