1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your MIZUDO 800GPD Tankless Reverse Osmosis Water Filter and Instant Hot Water Dispenser. Please read these instructions carefully before use to ensure proper function and safety.
Image 1.1: MIZUDO 800GPD Tankless RO System and Instant Hot Water Dispenser with filter cartridges and smart faucet.
2. Product Features
The MIZUDO 800GPD system combines advanced water purification with instant hot water dispensing, offering convenience and improved water quality.
- All-in-One RO Purification & Instant Heating: Provides instant hot and cold water with 9-stage purification. Features 6-level temperature control and a flow rate of 2.1L/min.
- Long-Life Filtration: Includes a 3-year RO filter, a 1-year PCF filter, and an optional 1-year mineralization filter. Designed with a larger filtration area to prevent clogging.
- Advanced 9-Stage Filtration: Removes up to 99.99% of pollutants, including heavy metals, chlorine, fluoride, cadmium, TDS, and PFAS, down to 0.0001 microns.
- Precise Temperature Control: Offers 6 temperature levels from 104℉ to 203℉ for various uses like coffee, tea, baby formula, and cooking.
- Water and Energy Efficiency: Features a 3:1 pure to drain ratio, reducing water waste. External tank heating technology enhances efficiency and safety.
- Innovative External Heating Technology: Utilizes external tank heating to eliminate electric leak risks, provide faster and more uniform heating, and prevent temperature fluctuations by separating cold and hot waterways.
- Smart Touchscreen Faucet: Displays water temperature, TDS level, and filter status. Includes child lock and temperature indicators for safety.
- Safety Assurance: Certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 for lead-free materials. Features anti-scalding child lock, dry-burn protection, leak-proof waterway, and food-grade T304 stainless steel tank.
Image 2.1: User enjoying pure hot water from the MIZUDO system.
Image 2.2: Six temperature options available for various needs.
Image 2.3: Detailed view of the 9+1 stage purification process.
3. Setup and Installation
The MIZUDO system is designed for quick installation and minimal maintenance. It is intended for under-sink installation only.
3.1 Unpacking
Carefully remove all components from the packaging. Verify that all parts listed in the 'What's in the Box' section are present.
3.2 Installation Steps
Installation can typically be completed in approximately 30 minutes without specialized tools.
- Position the main unit under the sink, ensuring adequate space for filter changes.
- Install the smart faucet on your countertop.
- Connect the water inlet tubing, drain water outlet tubing, and pure water tubing as per the diagram.
- Connect the power cable to a suitable electrical outlet.
- Flush the system as instructed in the operating section before first use.
Note: The unit must be installed under the sink. Installing it higher than the faucet may cause abnormal dripping.
Image 3.1: Installation diagram for the MIZUDO RO system.
Image 3.2: Simplified filter replacement process.
4. Operating Instructions
The smart touchscreen faucet provides intuitive control over water dispensing and temperature settings.
4.1 Initial Use
After installation, flush the system by dispensing water for several minutes to clear any air and ensure optimal performance.
4.2 Dispensing Water
- Cold/Ambient Water: Touch the corresponding icon on the faucet to dispense purified water at ambient temperature.
- Hot Water: Activate the child lock feature (if enabled) then select your desired temperature from the 6 available options. The faucet will dispense hot water at the selected temperature.
4.3 Temperature Control
The faucet allows selection of 6 precise temperature settings:
- 77℉ (Room-temp Water)
- 113℉ (Dissolving Milk Powder)
- 131℉ (Honey Water)
- 167℉ (Making Tea)
- 185℉ (Brewing Coffee)
- 203℉ (Cooking Spaghetti)
4.4 Smart Faucet Display
The touchscreen faucet provides real-time information:
- Current water temperature.
- TDS (Total Dissolved Solids) level of the purified water.
- Filter status indicators.
- Child lock status.
Image 4.1: Smart touch control faucet with display.
Image 4.2: Visual representation of the 6 temperature settings.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your MIZUDO RO system.
5.1 Filter Replacement
The system features tool-free filter replacement, which can be done in seconds without moving the unit.
- PCF Filter: Replace approximately every 1 year.
- RO Filter: Replace approximately every 3 years.
- Mineralization Filter (Optional): Replace approximately every 1 year.
Refer to the filter status indicator on the smart faucet for timely replacement reminders.
5.2 Cleaning
Wipe the exterior of the unit and faucet with a soft, damp cloth. Do not use abrasive cleaners or solvents.
5.3 Auto-Flush Function
The system includes an auto-flush feature to maintain filter freshness and prevent limescale buildup, contributing to zero maintenance.
Image 5.1: Filter lifespan and replacement schedule.
Image 5.2: Internal components and auto-flush feature for freshness.
6. Troubleshooting
This section addresses common issues you might encounter with your MIZUDO RO system.
| Problem | Possible Cause | Solution |
|---|---|---|
| No water dispensed | Power outage, water supply off, clogged filter, system error. | Check power connection and water supply. Inspect filter status on the faucet. If error code is displayed, refer to specific error code instructions. |
| Slow water flow | Clogged filter, low water pressure. | Check filter status and replace if necessary. Ensure adequate incoming water pressure. |
| Water tastes unusual | New filters not flushed, expired filters, contamination. | Flush new filters thoroughly. Replace expired filters. If taste persists, contact support. |
| Error Code F4 displayed | Indicates a system malfunction, often related to water flow or internal components. | Restart the system by unplugging and re-plugging the power cord. If the error persists, contact MIZUDO customer support for assistance. |
| Hot water not dispensing or not hot enough | Child lock active, incorrect temperature setting, heating element issue. | Deactivate child lock. Verify selected temperature. Ensure the system is powered and heating. |
| Abnormal dripping from faucet | Incorrect installation (unit higher than faucet), loose connections, faulty faucet. | Ensure the main unit is installed under the sink. Check all connections for tightness. If issue persists, contact support. |
7. Specifications
| Specification | Detail |
|---|---|
| Model Name | Megaflo Hot 800GPD |
| Item Model Number | WD800 |
| Product Dimensions (L x W x H) | 18.5" x 7.3" x 19.7" |
| Item Weight | 38 Pounds |
| Installation Type | Under Sink |
| Power Source | Corded Electric |
| Maximum Flow Rate | 0.6 Gallons Per Minute |
| Lower Temperature Rating | 40 Degrees Fahrenheit |
| Special Features | Adjustable Temperature, Built-In TDS Meter, Change Filter Indicator, Child Lock, Reduce TDS |
| Certifications | NSF/ANSI 58, NSF/ANSI 372, CSA & SGS Tested |
Image 7.1: Compact dimensions of the MIZUDO RO system.
Image 7.2: CSA & SGS Tested and Certified standards.
8. Warranty and Support
MIZUDO offers comprehensive support for your product.
- Warranty: 1-year free repair and replacement.
- Quality Guarantee: Lifetime quality guarantee from US-based experts.
For technical assistance, troubleshooting, or warranty claims, please contact MIZUDO customer support. Contact information can typically be found on the product packaging or the official MIZUDO website.
