1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Eridanus Smart Toilet, Model ERI-ST210-S. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.
2. Safety Information
Observe all safety warnings and instructions to prevent injury or damage. Improper installation, operation, or maintenance can lead to electric shock, water leakage, or other hazards.
Electrical Safety
- Ensure the toilet is connected to a properly grounded electrical outlet.
- Do not immerse the product in water or spray water directly onto electrical components.
- Unplug the unit before performing any maintenance or cleaning.
- Do not use if the power cord is damaged. Contact qualified service personnel for repair.
Water Safety
- Ensure water supply connections are secure to prevent leaks.
- Do not use abrasive cleaners or chemicals that may damage the toilet's surfaces or internal components.
General Safety
- This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Keep children supervised to ensure they do not play with the appliance.

Figure 2.1: Various Safety Functions
3. Product Overview
The Eridanus Smart Toilet ERI-ST210-S is a one-piece tankless bidet toilet designed for enhanced hygiene and comfort. It integrates multiple advanced features for a superior bathroom experience.
Key Features
- Custom Wash Modes: Rear wash, bidet wash, and oscillating spray.
- Self-Cleaning Adjustable Nozzle: Stainless steel wand with adjustable spray angle.
- Instant Heating & Comfort Control: On-demand warm water, air drying, adjustable water temperature, air temperature, and seat warmth.
- Powerful & Efficient Flush: Power-assisted flush, foot-sensor flush, off-seat auto flush, and blackout flush.
- Built-In Cleaning & Freshening: Pre-wetting and air freshener.
- Modern Interface & Lighting: Sleek screen display, side control knob, ambient lighting, and soft night light.
- ADA Height: Elongated heated seat designed for comfort and accessibility.

Figure 3.1: Eridanus Smart Toilet ERI-ST210-S

Figure 3.2: Advanced Bidet System

Figure 3.3: Instant Heated Water System

Figure 3.4: Warm Comfort Seat
4. Setup and Installation
This section outlines the components included and provides guidance for the physical installation of the Eridanus Smart Toilet ERI-ST210-S. Professional installation is recommended.
Included Components
Refer to the diagram below for a visual representation of the included parts.

Figure 4.1: Product Dimensions and Included Parts
- Smart Toilet Unit
- Wax Ring
- Remote Control
- Flange & Mounting Bolts
- Shut-off Valve (1/2" NPT x 3/4")
- Toilet Inlet Adapter (3/4" G x 7/8")
- User Manual (this document)
- Footprint Template
Note: An optional Shut-off Valve (3/8" x 3/4" G) is not included but may be available upon request.
Installation Steps (Summary)
- Prepare the installation area, ensuring water and electrical connections are available.
- Install the flange and mounting bolts according to standard plumbing practices.
- Place the wax ring onto the flange.
- Carefully position the smart toilet unit over the flange and secure it with the mounting bolts.
- Connect the water supply line to the toilet inlet adapter and then to the shut-off valve.
- Connect the power cord to a grounded electrical outlet.
- Test for leaks and proper functionality.
For detailed installation instructions, refer to the separate Installation Guide provided with your product.
5. Operating Instructions
The Eridanus Smart Toilet offers various functions for personalized hygiene and convenience. Familiarize yourself with the control methods and settings.
Flushing Operations
The toilet supports multiple flushing methods:
- Foot-Sensor Flush: A sensor at the base of the toilet detects foot movement for hands-free flushing.
- Off-Seat Auto Flush: The toilet automatically flushes after the user stands up and moves away from the seat.
- Side Control Knob: A knob on the side of the toilet allows manual flushing.
- Remote Control: Use the remote to initiate a flush.
- Blackout Flush: Ensures flushing capability even during power outages.

Figure 5.1: Touchless Auto Flush Options

Figure 5.2: Off-seat and Foot-Sensor Flush Operation

Figure 5.3: Powerful Automatic Flush System
Bidet and Washing Functions
The integrated bidet system provides customizable cleaning options:
- Arc-shape Spray Wand: Designed to prevent contact with waste, ensuring hygiene.
- Wash Modes: Select between Rear Wash, Bidet Wash (for feminine hygiene), and Oscillating Spray for a wider cleaning area.
- Adjustable Water Temperature: Choose from Room Temp, 93°F, 96°F, and 99°F.
- Adjustable Water Pressure: Select from Low, Medium, Strong, and Ultra Strong settings.

Figure 5.4: Arc-shape Spray Wand and Wash Settings
Comfort Features
- Heated Seat: Enjoy adjustable seat warmth with multiple temperature settings (Room Temp, 93°F, 96°F, 99°F).
- Warm Air Dryer: After washing, use the warm air dryer with adjustable temperature settings (Room Temp, 95°F, 113°F, 131°F) to reduce toilet paper usage.
- Soft Close Lid and Seat: Prevents slamming and reduces noise.
- Night Light & Digital Display: A soft night light illuminates the bowl for nighttime use, and a digital display shows current settings like water temperature, seat temperature, and wind temperature.

Figure 5.5: Warm Air Dryer and Heated Seat Controls

Figure 5.6: Night Light and Digital Display
Control Methods
- Side Control Knob: Provides quick access to core functions like flushing, air drying, oscillating wash, rear wash, and bidet wash.
- Smart Remote: A wireless remote control allows for comprehensive adjustment of all settings, including wash modes, water/seat/wind temperature, water pressure, and self-cleaning.

Figure 5.7: Control Knob and Smart Remote
6. Maintenance
Regular maintenance ensures the longevity and hygienic operation of your Eridanus Smart Toilet.
Self-Cleaning Functions
- Self-Cleaning Wand: The stainless steel bidet wand automatically cleans itself before and after each use.
- Pre-Wet Function: The toilet bowl is automatically moistened when you sit down, which helps prevent waste from sticking and improves flushing efficiency.
- Air Freshener: A built-in air freshener helps maintain a pleasant bathroom environment.

Figure 6.1: Pre-Wet Function
General Cleaning
- Exterior: Wipe the exterior surfaces with a soft, damp cloth and mild, non-abrasive cleaner.
- Seat: Clean the seat with a soft cloth and a gentle, non-corrosive bathroom cleaner.
- Nozzle: While the wand is self-cleaning, occasional manual inspection and gentle cleaning with a soft brush may be performed if necessary. Ensure the power is disconnected before any manual cleaning of the nozzle.
- Do Not Use: Avoid using harsh chemicals, abrasive pads, or strong acids/alkalis, as these can damage the ceramic or electronic components.
7. Troubleshooting
This section addresses common issues you might encounter with your Eridanus Smart Toilet. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Unit unresponsive | Power cord unplugged, circuit breaker tripped, power outage. | Check power connection, reset circuit breaker, verify power supply. |
| No water or weak spray | Water supply valve closed, water pressure low, nozzle clogged. | Open water supply valve, check household water pressure, clean nozzle. |
| Heated seat not warming | Seat heating function off, temperature setting too low. | Activate seat heating via remote/control knob, increase temperature setting. |
| Flushing issues (e.g., weak flush, no flush) | Water supply issue, sensor obstruction, internal mechanism fault. | Check water supply, ensure sensors are clean and unobstructed, contact support if issue persists. |
| Water leakage | Loose connections, damaged seals. | Tighten connections, inspect seals, contact support immediately. |
8. Specifications
Detailed technical specifications for the Eridanus Smart Toilet ERI-ST210-S.
- Model Number: ERI-ST210-S
- Color: White
- Material: Ceramic (Toilet), Polypropylene (PP) (Seat)
- Installation Type: Floor Mounted
- Flush Type: Siphon Jet, Power-assisted, Foot-sensor, Off-seat Auto Flush, Blackout Flush
- Water Temperature Settings: Room Temp, 93°F, 96°F, 99°F
- Air Dryer Temperature Settings: Room Temp, 95°F, 113°F, 131°F
- Water Pressure Levels: Low, Medium, Strong, Ultra Strong
- ADA Compliant Height: Yes (17 inches from floor to seat)

Figure 8.1: Ergonomic Comfort Height (ADA Compliant)

Figure 8.2: Product Dimensions
| Dimension | Measurement |
|---|---|
| Overall Length | 27 1/2 inches |
| Overall Width | 16 9/10 inches |
| Overall Height | 18 7/10 inches |
| Seat Height | 17 inches |
9. Warranty and Support
Eridanus is committed to providing quality products and excellent customer service.
Warranty Information
Your Eridanus Smart Toilet ERI-ST210-S comes with a one-year limited after-sales support. This includes:
- Spare parts availability
- Prompt technical assistance
- 30-day easy returns
Customer Support
Our customer service team is available 24/7 to assist with any inquiries or issues you may have. For support, please refer to the contact information provided in your product packaging or visit the official Eridanus website.
We offer lifetime service for our products, ensuring continued support beyond the initial warranty period.





