1. Introducción
This manual provides essential information for the safe and efficient operation of your ANZZI Envo Electric Tankless Water Heater, Model WH-AZ027-M3. Please read all instructions carefully before installation and use. Retain this manual for future reference.
Producto terminadoview
The ANZZI Envo Electric Tankless Water Heater is designed to provide on-demand hot water, eliminating the need for a traditional storage tank. Its compact design allows for installation in various locations, saving valuable space.

Figura 1: Frente view of the ANZZI Envo Electric Tankless Water Heater, showing the digital display and control buttons.
Características principales
- Diseño sin tanque: Saves space and provides continuous hot water.
- Water/Electric Separation: Ensures safety by isolating the flowing water from the electrical system.
- Pantalla LED: Provides real-time temperature readings and allows for easy temperature adjustment.
- Protección contra sobrecalentamiento: Función de seguridad integrada para evitar el sobrecalentamiento.
- Tamaño compacto: Dimensions of 10.24"W x 15.16"H allow for flexible installation.

Figure 2: Visual comparison illustrating the compact size of the ANZZI Envo tankless water heater compared to a traditional tank water heater, highlighting its space-saving benefit.
2. Información de seguridad
ADVERTENCIA: La instalación, el ajuste, la alteración, el servicio o el mantenimiento incorrectos pueden causar daños materiales, lesiones o la muerte. Lea estas instrucciones detenidamente antes de instalar o realizar el mantenimiento de este equipo.
- Este aparato debe ser instalado por un electricista y un plomero calificados de acuerdo con todos los códigos eléctricos y de plomería nacionales y locales.
- Ensure the main power supply is disconnected before performing any installation or maintenance.
- No opere este calentador de agua si alguna parte del mismo ha estado sumergida en agua.
- No bloquee ni obstruya el flujo de agua hacia dentro o hacia fuera de la unidad.
- Maintain proper clearances around the unit as specified in the installation section.
- The water heater is designed for indoor use only.
- Pruebe siempre la temperatura del agua antes de usarla para evitar quemaduras.
3. Especificaciones
| Característica | Especificación |
|---|---|
| Marca | ANZZI |
| Número de modelo | WH-AZ027-M3 |
| Quétage | 27000 vatios (27 kW) |
| Volumentage | 240 voltios |
| Dimensiones del producto | 10.24" de ancho x 15.16" de alto |
| Peso del artículo | 18.19 libras |
| Características especiales | LED Display, Overheat Protection |
| Tipo de montaje | Muro |
| Eficiencia | Altamente eficiente |
| Proceso de dar un título | ETL |
| Código Postal | 191042063433 |

Figure 3: Dimensions of the ANZZI Envo Electric Tankless Water Heater, showing a width of 10.2 inches and a height of 15.1 inches.
4. Instalación
Installation of this tankless water heater requires professional expertise. It is strongly recommended that a licensed electrician and plumber perform the installation to ensure compliance with all applicable codes and safety standards.
4.1 Requisitos eléctricos
The ANZZI Envo 27kW model requires significant electrical capacity. Ensure your electrical panel can support the unit's demands.
- Volumentage: 240 voltios
- Consumo máximo de corriente: 112.5 Amps
- Required Breakers: 3 x 40 Amp Double Pole Breakers
- Required Wire (AWG): 3x8 AWG
- Minimum Panel Capacity: 200 Amps or more is recommended.

Figure 4: Diagram detailing the electrical requirements for the ANZZI Envo 27kW model, including breaker and wire specifications. Professional installation is recommended.
4.2 Requisitos de plomería
- Install the unit vertically with water connections at the bottom.
- Ensure proper water pressure and flow rate are available at the installation site.
- The unit features water/electric separation for enhanced safety.
- All fittings are designed with O-rings to minimize potential leaks.

Figura 5: Abajo view of the ANZZI Envo water heater, illustrating the inlet and outlet water connections.

Figura 6: Example installation diagram showing the ANZZI Envo water heater mounted on a wall in a utility area, serving a bathroom above.
4.3 Sizing and Capacity
The performance of a tankless water heater is dependent on the incoming water temperature and desired flow rate. Refer to the chart below to determine the appropriate model for your climate and usage needs.

Figure 7: Sizing chart for ANZZI Envo tankless water heaters, correlating regional inlet water temperatures with flow rates (GPM) and approximate fixture usage for different models.
The 27kW model is suitable for higher demand applications, but actual performance will vary based on your specific inlet water temperature and simultaneous hot water usage.
5. Instrucciones de instalación y funcionamiento
5.1 Configuración inicial
- After plumbing and electrical connections are complete and verified by a professional, ensure all water valves are open.
- Purge air from the system by opening all hot water faucets in your home until water flows smoothly without sputtering.
- Encienda la energía eléctrica de la unidad en el disyuntor.
- La pantalla LED de la unidad debería iluminarse.
5.2 Operating the Unit
The ANZZI Envo features an intuitive LED display for temperature control.
- Botón de encendido: Presiona el boton de poder (⏻) para encender o apagar la unidad.
- Ajuste de temperatura: Utilice el botón arriba (▲) y abajo (▼) arrow buttons to set your desired water temperature. The display will show the set temperature.
- Visualización en tiempo real: The LED screen will show the current water temperature as it heats.

Figure 8: Close-up of the ANZZI Envo control panel, showing the digital temperature display and adjustment buttons.
The unit provides instant and continuous hot water as long as the flow rate and inlet temperature are within its operational capacity.

Figure 9: Illustration of how cold water enters the unit and is instantly heated, then exits as continuous hot water, demonstrating the tankless operation.
6. Mantenimiento
El mantenimiento regular ayuda a garantizar la longevidad y el funcionamiento eficiente de su calentador de agua sin tanque.
- Lavado anual: It is recommended to flush the unit annually to remove mineral buildup, especially in areas with hard water. Consult a qualified plumber for this service.
- Inspeccionar las conexiones: Periodically check all water and electrical connections for any signs of leaks or corrosion. Address any issues promptly.
- Exterior limpio: Limpie el exterior de la unidad con un paño suave yamp Paño. No utilice limpiadores abrasivos ni disolventes.
- Filter Cleaning (if applicable): Some models may have an inlet filter. Refer to specific instructions for cleaning or replacing it if present.
7. Solución de problemas
Before attempting any troubleshooting, ensure the power supply to the unit is disconnected at the circuit breaker.
| Problema | Posible causa | Solución |
|---|---|---|
| No hay agua caliente / La unidad no enciende | No power, tripped breaker, insufficient water flow. | Check circuit breakers. Ensure adequate water flow (minimum activation flow rate). Verify electrical connections. |
| El agua no está lo suficientemente caliente | Inlet water too cold, flow rate too high, temperature setting too low, mineral buildup. | Reduce water flow. Increase temperature setting. Consider professional descaling if mineral buildup is suspected. Refer to sizing chart (Figure 7). |
| Temperatura del agua fluctuante | Inconsistent water pressure, air in the system, multiple hot water demands. | Check water pressure. Purge air from the system. Avoid excessive simultaneous hot water usage. |
| Fuga | Loose connections, damaged O-rings, internal component failure. | Immediately turn off water supply and power. Tighten connections. Contact a qualified plumber for repair. |
For issues not resolved by the above steps, or for any complex repairs, contact a qualified technician or ANZZI customer support.
8. Garantía y soporte
Información de garantía
The ANZZI Envo Electric Tankless Water Heater comes with a Garantía limitada de por vida. This warranty covers defects in materials and workmanship under normal use and service. Please refer to the warranty card included with your product for full terms and conditions, or visit the ANZZI websitio para más detalles.
Atención al cliente
For technical assistance, parts, or warranty claims, please contact ANZZI customer support. Have your model number (WH-AZ027-M3) and purchase date available when contacting support.
Contact information for ANZZI can typically be found on their official websitio o en el embalaje del producto.







