1. Introduzione
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Thermoflow 3.5kW 110-120V Mini Tankless Electric Point of Use Water Heater. This compact unit is designed to provide instant hot water at the point of use, eliminating the need for preheating and reducing energy waste. Please read this manual thoroughly before installation and retain it for future reference.

Figure 1: Thermoflow Mini Tankless Water Heater (Model Elex 3.5L)
2. Informazioni sulla sicurezza
Adherence to the following safety guidelines is crucial for preventing property damage, personal injury, or death. Installation and service must be performed by a qualified professional.
- Sicurezza elettrica: This unit requires a dedicated electrical circuit. Ensure the power supply matches the unit's requirements (110-120 volts, 3.5 kW, 29 Amps). A 1 x 2-POLE 30 AMP breaker is required and is NOT included. All wiring must comply with national and local electrical codes.
- Pressione dell'acqua: The maximum operating pressure is 150 PSI. Ensure your water supply pressure is within this limit. Installation of a pressure regulating valve may be necessary if pressure exceeds this.
- Temperatura dell'acqua: The unit can heat water up to 122°F (50°C). Exercise caution to prevent scalding, especially when used by children or individuals with reduced physical, sensory, or mental capabilities.
- Luogo di installazione: Install the unit in a location protected from freezing temperatures. Ensure adequate ventilation and accessibility for maintenance.
- Perdita: Regularly inspect the unit and connections for any signs of water leakage. Address any leaks immediately.
3. Contenuto della confezione
Verificare che tutti i componenti siano presenti prima di iniziare l'installazione:
- Thermoflow Mini Tankless Water Heater (Model Elex 3.5L)
- Hardware di montaggio
- Connettore(i)
- Manuale di istruzioni

Figura 2: Esample of unit included in package
4. Installazione
4.1 Selezione del sito e montaggio
The Thermoflow Mini Tankless Water Heater is designed for point-of-use applications, typically under or over a sink. It can be mounted vertically or upside down.

Figure 3: Under-Sink (water inlets pointing up) and Over-Sink (water inlets pointing down) Installation
4.2 Collegamenti idraulici
Connect the water heater to your cold water supply and hot water faucet using 1/2" NPT pipe fittings. Ensure all connections are secure and leak-free. It is recommended to install a shut-off valve on the cold water inlet line for future maintenance.

Figure 4: Typical Plumbing Connection Diagram (Voltage: 110~120V, Power: 2.9kW~3.5kW)
4.3 collegamenti elettrici
This unit requires a hard-wired electrical connection. Ensure the power is OFF at the main breaker before beginning any electrical work. Connect the unit to a dedicated 110-120 volt circuit with a 1 x 2-POLE 30 AMP breaker. Use 1 x 12 AWG wire for connections. If you are unsure about electrical wiring, consult a licensed electrician.
5. Funzionamento
Once installed and connected, the Thermoflow Mini Tankless Water Heater provides instant hot water. There is no need to preheat. The unit features a smart modulation system that adjusts power automatically based on flow rate and temperature settings to maintain a stable output temperature between 95°F and 122°F.

Figure 5: Applications of Instant Hot Water
5.1 Controllo di flusso avanzato
The unit includes an exclusive Advanced Flow Control feature. If the demand for hot water temporarily exceeds the unit's capacity, you can slightly reduce the water flow at the faucet to maintain a consistent hot water temperature. This helps prevent sudden temperature drops during peak usage.

Figure 6: Advanced Flow Control Mechanism
6. Manutenzione
Una manutenzione regolare garantisce prestazioni ottimali e longevità dello scaldabagno.
- Ispezione periodica: Annually inspect all water connections for leaks and tighten if necessary.
- Pulizia: The exterior of the unit can be wiped clean with a damp panno. Non usare detergenti abrasivi.
- Sediment Check: If water flow decreases or temperature fluctuates, check for sediment buildup in the inlet filter (if applicable) and clean as needed.
- winterization: Se l'unità si trova in una zona soggetta a gelo e non verrà utilizzata per un periodo prolungato, svuotarla completamente per evitare danni causati dal congelamento dell'acqua.
7. Risoluzione Dei Problemi
Per i problemi più comuni e le possibili soluzioni, fare riferimento alla tabella sottostante.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessuna acqua calda / Unità non riscalda | No power; Breaker tripped; Water flow too low; Heating element failure. | Check power supply and breaker. Ensure adequate water flow. Reset unit if applicable. If problem persists, contact qualified service personnel. |
| Acqua non abbastanza calda | Inlet water temperature too low; Water flow too high; Incorrect temperature setting. | Reduce water flow at the faucet. Ensure temperature setting is appropriate. Refer to GPM chart in specifications. |
| Water too hot / Scalding | Temperature setting too high; Malfunctioning thermostat. | Adjust temperature setting. If issue persists, contact qualified service personnel. |
| Perdita d'acqua | Loose connections; Damaged fittings; Internal leak. | Tighten all plumbing connections. Inspect fittings for damage. If internal leak, contact qualified service personnel. |
| Flusso d'acqua ridotto | Sediment buildup in filter or pipes. | Check and clean inlet filter. Flush water lines. |
8. Specifiche
Detailed technical specifications for the Thermoflow Mini Tankless Water Heater (Model Elex 3.5L).
| Specificazione | Valore |
|---|---|
| Marca | termoflusso |
| Numero di modello | Elex 3.5L |
| Stile | 3500W |
| Voltage | 110-120 Volt |
| Cosatage | 3.5 kW |
| Ampera capacità | 29 Amps |
| Dimensioni del prodotto (L x A x P) | 7.4" x 5.4" x 3.4" |
| Peso dell'articolo | 3 libbre |
| Temperatura massima | 122 gradi Fahrenheit (50°C) |
| temperatura minima | 95 gradi Fahrenheit (35°C) |
| Pressione massima di esercizio | 150 bar |
| Raccordi per tubi | 1/2" NPT |
| Cavo richiesto | 1x12 AWG |
| Required Breakers | 1 x 2-POLE 30 AMP (NON incluso) |
| Certificazione | Certificato CSA |
| Efficienza | High efficient, Energy Saving (up to 99% instantaneous heating efficiency) |
| Tipo di montaggio | Wall Mounted (vertical or upside down) |
| Componenti inclusi | Connettore |

Figura 7: Dimensioni del prodotto

Figure 8: Usage Guide based on Inlet Water Temperature and GPM
9. Garanzia e supporto
Thermoflow products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase documentation or visit the official Thermoflow website. Please have your model number (Elex 3.5L) and purchase date available when contacting support.