1. Introduzione
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your SAUERMANN SI1801SCUS23 Condensate Water Pump. This pump is designed to automatically remove condensate water from air conditioning and refrigeration systems, preventing water overflow and potential damage. Please read these instructions thoroughly before installation and retain them for future reference.
2. Informazioni sulla sicurezza
- Sicurezza elettrica: Always disconnect power to the unit before performing any installation, maintenance, or troubleshooting. Ensure the power supply matches the pump's voltage (230V, 50/60 Hz). All electrical connections must comply with local codes and regulations.
- Sicurezza dell'acqua: This pump handles water. Ensure all connections are secure to prevent leaks. Do not submerge the pump.
- Installazione: Install the pump on a stable, level surface. Avoid locations where it could be exposed to freezing temperatures or direct sunlight.
- Manutenzione: Regular cleaning is crucial for optimal performance and longevity. Refer to the maintenance section for detailed instructions.
- Personale qualificato: L'installazione e la manutenzione dovrebbero idealmente essere eseguite da personale qualificato.
3. Contenuto della confezione
Verificare che tutti i componenti siano presenti prima di iniziare l'installazione:
- SAUERMANN SI1801SCUS23 Condensate Water Pump with 1/2 Gal (2L) Tank
- Istruzioni per l'installazione e l'uso (questo manuale)
- Additional fittings or accessories may be included depending on the specific package.
4. Configurazione e installazione
Follow these steps for proper installation of the SAUERMANN SI1801SCUS23 pump:
- Posizionamento: Position the pump on a flat, stable surface near the air conditioning unit's condensate drain pan. Ensure there is sufficient space for maintenance and tubing connections. The pump should be lower than the drain pan to allow gravity flow into the pump's reservoir.
- Collegamento in ingresso: Connect the condensate drain line from the A/C unit to the inlet port of the pump's reservoir. Ensure a tight, leak-free connection.
- Collegamento della presa: Connect appropriate discharge tubing (not supplied) to the pump's outlet port. Route the discharge tubing upwards to the desired drainage point, ensuring it is secured and free of kinks. Avoid creating siphons or excessive back pressure. The maximum vertical lift is specified in the 'Specifications' section.
- Collegamento elettrico: Connect the pump to a dedicated 230V, 50/60 Hz power supply. Ensure the circuit is protected by an appropriate fuse or circuit breaker.
- Safety Switch (if applicable): Many condensate pumps include a safety switch that can be wired to shut down the A/C unit in case of pump failure or high water level. Consult your A/C unit's manual for proper wiring of this safety feature.
- Test iniziale: Once all connections are made, manually pour a small amount of water into the pump's reservoir to verify that the pump activates, discharges water, and then deactivates when the water level drops. Check for any leaks.

Figura 1: SAUERMANN SI1801SCUS23 Condensate Water Pump. This image shows the compact design of the pump with its integrated reservoir, inlet, and outlet connections, and the motor housing on top.
5. Istruzioni per l'uso
The SAUERMANN SI1801SCUS23 condensate pump operates automatically. When condensate water from the A/C unit flows into the pump's reservoir, a float switch inside the tank rises. Upon reaching a predetermined level, the float switch activates the pump. The pump then discharges the water through the outlet tubing until the water level drops, at which point the float switch deactivates the pump.
- Funzionamento automatico: The pump will cycle on and off as needed, based on the condensate production of your HVAC system.
- Suoni normali: It is normal to hear a low humming sound when the pump is operating.
- Safety Alarm: If the water level in the reservoir rises above the normal operating level (e.g., due to a blockage or pump malfunction), the high-level safety switch will activate. If wired, this switch will shut down the A/C unit to prevent water overflow.
6. Manutenzione
Regular maintenance ensures the longevity and efficient operation of your condensate pump. Perform maintenance at least once every three months, or more frequently in dusty environments.
- Scollegare l'alimentazione: Always disconnect the pump from the electrical supply before performing any maintenance.
- Serbatoio pulito: Remove the pump cover and carefully lift out the pump mechanism from the reservoir. Clean the inside of the reservoir to remove any sludge, algae, or debris that may have accumulated. A mild detergent and water can be used.
- Ispezionare l'interruttore a galleggiante: Clean the float switch mechanism to ensure it moves freely and is not obstructed by debris.
- Controllare i tubi: Ispezionare i tubi di ingresso e di uscita per individuare eventuali ostruzioni, pieghe o segni di usura. Rimuovere eventuali ostruzioni.
- Riassemblare e testare: Reassemble the pump, ensuring all components are correctly seated. Reconnect power and perform an initial test by pouring water into the reservoir to confirm proper operation.
7. Risoluzione Dei Problemi
Per i problemi più comuni e le possibili soluzioni, fare riferimento alla tabella seguente:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| La pompa non funziona | No power; Clogged inlet/outlet; Faulty float switch; Motor failure | Check power supply/breaker; Clear blockages; Clean/replace float switch; Contact support |
| La pompa funziona continuamente | Float switch stuck; Air leak in inlet; Discharge tubing blockage/siphon; Pump not priming | Clean float switch; Check inlet connections; Clear discharge line; Ensure proper priming |
| Perdite d'acqua dalla pompa | Loose connections; Cracked reservoir/tubing; Overflow due to blockage | Tighten connections; Inspect for damage, replace if necessary; Clear blockages |
| Rumore eccessivo | Detriti nella pompa; Pompa non a livello; Aria nel sistema | Clean pump impeller; Ensure pump is level; Bleed air from system |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please contact Sauermann customer support.
8. Specifiche
| Numero di modello | SI1801SCUS23 |
| Marca | Sauermann |
| Voltage | 230 Volt |
| Frequenza | Frequenza 50/60 Hz |
| Portata massima | 2.2 galloni al minuto (132 GPH) |
| Capacità del serbatoio | 1/2 Gallon (2 Liters) |
| Dimensioni del prodotto | 12 x 6 x 8 pollici |
| Peso dell'articolo | 5.35 libbre |
| Materiale | Metallo o plastica |
| Produttore | SAUERMANN |
9. Garanzia e supporto
For warranty information, technical support, or replacement parts, please contact Sauermann customer service directly. Keep your purchase receipt as proof of purchase. Do not attempt to repair the unit yourself, as this may void the warranty.





