1. Introduction
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.
Product Overview
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.
Figure 1: Front view of the ANZZI Envo Electric Tankless Water Heater, showing the digital display and control buttons.
Key Features
- Tankless Design: Saves space and provides continuous hot water.
- Water/Electric Separation: Ensures safety by isolating the flowing water from the electrical system.
- LED Display: Provides real-time temperature readings and allows for easy temperature adjustment.
- Overheat Protection: Integrated safety feature to prevent overheating.
- Compact Size: 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. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read these instructions thoroughly before installing or servicing this equipment.
- This appliance must be installed by a qualified electrician and plumber in accordance with all national and local electrical and plumbing codes.
- Ensure the main power supply is disconnected before performing any installation or maintenance.
- Do not operate this water heater if any part of it has been submerged in water.
- Do not block or obstruct the flow of water into or out of the unit.
- Maintain proper clearances around the unit as specified in the installation section.
- The water heater is designed for indoor use only.
- Always test water temperature before use to prevent scalding.
3. Specifications
| Feature | Specification |
|---|---|
| Brand | ANZZI |
| Model Number | WH-AZ027-M3 |
| Wattage | 27000 watts (27 kW) |
| Voltage | 240 Volts |
| Product Dimensions | 10.24"W x 15.16"H |
| Item Weight | 18.19 pounds |
| Special Features | LED Display, Overheat Protection |
| Mounting Type | Wall |
| Efficiency | Highly Efficient |
| Certification | ETL |
| UPC | 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. Installation
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 Electrical Requirements
The ANZZI Envo 27kW model requires significant electrical capacity. Ensure your electrical panel can support the unit's demands.
- Voltage: 240 Volts
- Maximum Current Draw: 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 Plumbing Requirements
- 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.
Figure 5: Bottom view of the ANZZI Envo water heater, illustrating the inlet and outlet water connections.
Figure 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. Setup and Operating Instructions
5.1 Initial Setup
- 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.
- Turn on the electrical power to the unit at the circuit breaker.
- The unit's LED display should illuminate.
5.2 Operating the Unit
The ANZZI Envo features an intuitive LED display for temperature control.
- Power Button: Press the power button (⏻) to turn the unit on or off.
- Temperature Adjustment: Use the up (▲) and down (▼) arrow buttons to set your desired water temperature. The display will show the set temperature.
- Real-time Display: 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. Maintenance
Regular maintenance helps ensure the longevity and efficient operation of your tankless water heater.
- Annual Flushing: 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.
- Inspect Connections: Periodically check all water and electrical connections for any signs of leaks or corrosion. Address any issues promptly.
- Clean Exterior: Wipe the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Filter Cleaning (if applicable): Some models may have an inlet filter. Refer to specific instructions for cleaning or replacing it if present.
7. Troubleshooting
Before attempting any troubleshooting, ensure the power supply to the unit is disconnected at the circuit breaker.
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water / Unit not turning on | No power, tripped breaker, insufficient water flow. | Check circuit breakers. Ensure adequate water flow (minimum activation flow rate). Verify electrical connections. |
| Water not hot enough | 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). |
| Fluctuating water temperature | 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. |
| Leakage | 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. Warranty and Support
Warranty Information
The ANZZI Envo Electric Tankless Water Heater comes with a Limited Lifetime Warranty. 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 website for details.
Customer Support
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 website or on the product packaging.
