1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Fogatti 27kW Electric Tankless Water Heater. Please read all instructions carefully before installation and use.
Product Overview
The Fogatti 27kW Electric Tankless Water Heater is designed to provide instant and continuous hot water for residential use. It features a compact, wall-mounted design, high energy efficiency, and precise temperature control.

Image: Advanced Instant Heating System features, including shower, heating unit, controls, and water flow sensor.
Key Features
- Instant Hot Water: Provides hot water on demand with a flow rate up to 6.7 GPM.
- Energy Efficiency: Achieves 98% energy efficiency for reduced energy consumption.
- Precise Temperature Control: Digital interface allows temperature settings from 86°F to 140°F in 1°F increments.
- Compact Design: Dimensions of 17.1" x 12.9" x 3.9" for flexible installation in small spaces.
- Safety Features: ETL certified with overheat protection, leak detection technology, and water-electric isolation.
Video: Overview of the Fogatti Electric Tankless Water Heater, demonstrating instant heating, temperature control, and safety features.
2. Safety Information
Your safety is paramount. This water heater is ETL certified and incorporates multiple safety mechanisms. Adhere to all local electrical and plumbing codes during installation and operation.
Integrated Safety Features
- Overheat Protection
- Dry Burn Prevention
- Anti-scale Design Heating Chamber
- IPX4 Waterproof Protection
- Leakage Protection
- Lightning-resistant Control Component

Image: ETL Certification details and icons representing six safety features: Water & Electricity Isolation, Anti Parched Protection, IPX4 Waterproof Protection, Overheat Protection, Anti Leakage Protection, and Automatic Fault Detection.
3. Setup and Installation
Professional installation is recommended. Ensure all electrical and plumbing connections comply with local codes and regulations.
Electrical Requirements
The Fogatti 27kW 240V electric tankless water heater requires a maximum draw of 113 Amps. It necessitates 3 x 40 AMP circuit breakers and 3 x (8AWG/2) wires. Ensure your electrical panel can accommodate these requirements.

Image: Detailed table outlining electrical specifications (voltage, power, breaker size, wire size, max amperage) and plumbing connections (3/4" NPT).
Wiring Diagram
Refer to the following diagram and video for correct wiring connections. The ET027A1G model must be connected to 3 sets of 240V power. Each set requires connection to a two-pole breaker. L1 & L2 lines must connect to breaker A, L1" & L2" to breaker B, and L1''' & L2''' to breaker C.

Image: Visual representation of the circuit diagram, showing connections from the water heater to the breaker panel with three two-pole breakers.
Video: A detailed demonstration of the electrical wiring process for the Fogatti 24/27kW Electric Tankless Water Heater, including connections to the circuit breakers.
Physical Installation
The unit is designed for wall-mounting. Choose a location that allows for proper ventilation, access for maintenance, and is protected from freezing temperatures. Ensure the mounting surface is capable of supporting the unit's weight.

Image: The compact Fogatti 27kW water heater mounted on a bathroom wall, illustrating its minimal space requirement.
4. Operation
Once installed, operating your Fogatti tankless water heater is straightforward using the digital interface.
Temperature Control
Adjust the desired water temperature using the intuitive knob and monitor it on the clear LED display. Temperatures can be set between 86°F and 140°F in 1°F increments. The unit's smart chip and dual sensors ensure consistent hot water delivery, minimizing temperature fluctuations.

Image: A graph demonstrating the consistent temperature output of the Fogatti water heater, maintaining a stable temperature within ±1°F of the set point.
Water Flow and Performance
The 27kW model can deliver up to 6.7 GPM, sufficient for 3-4 fixtures simultaneously, depending on the incoming water temperature. Refer to the performance chart for expected flow rates based on ground water temperature.

Image: A map showing average ground water temperatures across North America, alongside a performance chart detailing the maximum flow rate (GPM) and simultaneous shower use based on inlet water temperature for the 27kW model.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your tankless water heater.
Descaling
Depending on your water hardness, periodic descaling (flushing with a descaling solution) may be necessary to prevent mineral buildup in the heating elements. Consult a qualified plumber for this procedure, typically recommended annually in hard water areas.
Cleaning
Keep the exterior of the unit clean with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure air vents are clear of obstructions.
6. Troubleshooting
If you encounter issues with your water heater, refer to the following common troubleshooting steps. For complex problems, contact customer support.
Safety Thermal Cut-off Reset Instructions
If the product stops working due to the safety thermal cut-off protection function, you can reset it to restore normal operation. Warning: Ensure the unit is powered off before proceeding.
- Remove the outer shell: Carefully detach the unit's outer casing.
- Locate the safety thermal cut-off: Identify the thermal cut-off switch inside the unit.
- Press the reset button with a screwdriver: Use a screwdriver to press the reset button on the thermal cut-off.
- Install the outer shell: Reattach the outer casing securely.
To determine if the safety thermal cut-off has tripped: (1) The machine is not working (the display screen shows nothing); (2) The municipal power supply is normal (test whether other appliances at home are functioning properly); (3) The circuit breaker connected to the electric water heater has not tripped. If these three conditions are met simultaneously, the product's limiter may have tripped, requiring a reset.

Step 1: Remove outer shell

Step 2: Locate thermal cut-off

Step 3: Press reset button

Step 4: Install outer shell
7. Specifications
| Feature | Specification |
|---|---|
| Brand | FOGATTI |
| Model Number | 27kW |
| Product Dimensions | 3.9"W x 17.1"H |
| Color | Gray |
| Wattage | 27 KW |
| Voltage | 240 Volts |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Efficiency | 98% |
| Mounting Type | Wall |
| Item Weight | 21 pounds |
| Special Features | Overheat Protection, Leak Detection Technology |
8. Warranty and Support
Fogatti is committed to providing reliable products and customer satisfaction.
Warranty Information
This product includes a 2-Year Complete Unit Service warranty. Additionally, a 30-Day Hassle-free Refund policy is in place for your peace of mind.
Customer Support
For any inquiries, technical assistance, or warranty claims, please contact Fogatti customer support:
- Phone Support: Available 24/7
- Email Assistance: Available 24 hours

Image: Customer support details, including 24/7 phone support and 24-hour email assistance.





