The Tank Pump Re-Invented
Sauermann engineers have redesigned the tank pump from the inside-out, making the Si-83 more compact than any other tank pump in its class, all while redefining just how easy tank pump installation and maintenance can be in the field. The Si-83 even comes with a customized Smartphone App that makes installation both simple and intuitive.
The Si-83 is constructed from rugged materials and components for exceptional durability and reliability. The Si-83 tank pump from Sauermann is perfect for residential A/C (up to 20 kW / 60,000 BTU) and heating units (73 kW / 250,000 BTU).
Exceptional Durability and Reliability
Quick & Easy Installation in any place
Quicker & Easier Maintenance
Regular Duty
| Technical details | |
| Max discharge head | 21 ft |
| Mains supply | 120 V~ 60 Hz - 84 W – 1.7 A (SI83ULx2UN12). 230 V~ 60 Hz – 1.25 A (SI83ULx2UN23) |
| Operation conditions | 7%: 16s ON - 212s OFF |
| Protection | IP44 |
| Max condensate temperature | 130 °F |
| Max condensate acidity | pH > 2.5 (Gas condensing boilers) |
| Color | Negro, azul |
| Tank volume | 0.5 ft³ |
| Weight | 4 pounds |
| Master pack quantity | 105 |
| Safety switch | 5 A - 42 V peak (SI83UL02UN12, SI83UL02UN23: NC. SI83UL42UN12, SI83UL42UN23: NO. SI83UL72UN12, SI83UL72UN23: NO/NC) |
1 One-piece centrifugal pump with ½ gallon (2 l) tank
1 Integrated barb end check valve, Ø ext. 3/8” (10 mm)
1 6’ (1.8 m) power cord, US plug
1 Built-in safety switch, 3’ (1 m) wires, bare ends
1 Adaptor int. Ø 5/8”- 3/4”- 1” - 1 1/4”- 1 1/2” (15/17 mm - 20 mm - 24/25 mm - 32 mm - 40 mm)
2 screws, 2 plugs
| Pump Dimensions | ||
| Pump | Packaging | |
| Length | 11 5/16 inches | 12 3/8 inches |
| Width | 5 3/4 inches | 5 15/16 inches |
| Height | 5 5/16 inches | 6 7/8 inches |
| Safety standards |
| UL/CSA by Intertek |
| ROHS and WEE directives |
| Compliant |