1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your WINTEMP 18kW Electric Tankless Water Heater, Model WN18. This unit is designed to provide on-demand hot water, offering energy efficiency and space-saving benefits compared to traditional tank water heaters.
Image 1.1: WINTEMP 18kW Electric Tankless Water Heater, Model WN18, with digital display and WiFi control icon.
The WN18 model is rated at 18KW (240V) with a maximum amperage of 75A, capable of delivering up to 4.3 gallons per minute (GPM) of hot water. It features an LED temperature display and WiFi control for convenient temperature adjustments.
Image 1.2: Comparison highlighting the benefits of electric tankless water heaters over traditional tank models, including size, energy use, and installation.
2. Safety Information
Your safety is paramount. This WINTEMP water heater is designed with multiple safety protections and is ETL certified to ensure reliable operation. Please read and understand all safety instructions before installation and use.
- Leakage Protection: Designed to prevent water leaks.
- Overheat Protection: Automatically shuts off if internal temperatures exceed safe limits.
- Dry-Fire Protection: Prevents the heating element from activating without water flow.
- ETL Certified: Confirms compliance with North American safety standards.
Image 2.1: Visual representation of the multiple protection features, including dry combustion, overheat, lightning resistance, control component, leakage, IPX4 waterproof, anti-scale design, and heating chamber.
Important: Professional installation is recommended. Consult a qualified electrician and plumber prior to installation to ensure compliance with local codes and safety standards.
3. Product Specifications
| Feature | Specification |
|---|---|
| Brand | WINTEMP |
| Model Number | WN18 |
| Wattage | 18000 watts (18kW) |
| Voltage | 240 Volts |
| Maximum Amperage | 75A |
| Maximum Flow Rate | 4.3 Gallons Per Minute (GPM) |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Efficiency | Up to 99% energy savings |
| Product Dimensions (W x H x D) | 11.1" x 19.1" x 4" (28.2cm x 48.5cm x 10.2cm) |
| Water Connection | 3/4" NPT |
| Mounting Type | Wall-mounted |
| Special Features | LED Display, Overheat Protection, WiFi Control |
| Item Weight | 12 pounds |
4. Package Contents
Verify that all items are present in the package before proceeding with installation:
Image 4.1: Contents of the WINTEMP 18kW Electric Tankless Water Heater package, including the unit, filters, instruction manual, positioning indicator paper, WiFi connection instructions, wall anchors, screws, and NPT waterproof gaskets.
- 1x WINTEMP 18kW Electric Tankless Water Heater Unit
- 1x Instruction Manual
- 1x Positioning Indicator Paper
- 1x WiFi Connection Instructions
- 1x Filters
- 3x Wall Anchors and Screws
- 2x 3/4" NPT Waterproof Gaskets
5. Installation Requirements
Proper installation is critical for the safe and efficient operation of your tankless water heater. Ensure all requirements are met before beginning installation.
5.1 Electrical Requirements
The WN18 model requires specific electrical infrastructure. Failure to meet these requirements can result in malfunction, damage, or safety hazards.
- Voltage: 240V
- Maximum Amperage: 75A
- Breakers: 2 x 40 Amp Double Pole (DP) breakers are required.
- Wiring: 2 x 8/2 AWG wiring with ground is required.
- Household Service: A 150 Amp household service is recommended.
Image 5.1: Diagram illustrating the electrical requirements, including the recommended 150 Amp household service, 2 x 40 Amp double pole breakers, and 2 x 8 AWG wiring.
5.2 Plumbing Requirements
- Water Connection: 3/4" NPT.
- Ensure adequate water pressure for optimal performance.
5.3 Mounting
The unit features a wall-mounted compact design. It occupies significantly less space than traditional tank water heaters and can be installed in various locations, provided electrical and plumbing requirements are met.
Image 5.2: Details on user-friendly setup, including the inlet filter screen design and brass, corrosion-resistant connections for high temperature and pressure.
Image 5.3: A sizing chart based on inlet water temperature and GPM, along with a three-step guide for finding location, checking water temperature, and verifying electrical infrastructure.
Refer to the provided positioning indicator paper for accurate mounting hole placement. The unit dimensions are 11.1" (W) x 19.1" (H) x 4" (D).
5.4 Application
The WN18 is suitable for whole-house hot water supply in many residential settings, supporting 2-3 points of use. Its compact size allows for installation in various areas of the home.
Image 5.4: Diagram illustrating how the tankless water heater can provide hot water for an entire house, connecting to multiple fixtures.
6. Operation Guide
The WINTEMP WN18 is designed for user-friendly operation with stable and continuous hot water delivery.
6.1 Temperature Control
- LED Display: The unit features an on-screen digital temperature display.
- Adjustable Range: Temperature can be adjusted from 86°F to 140°F.
- Self-Modulating Technology: The heater automatically adjusts energy consumption based on incoming water temperature and flow rate to maintain a stable output temperature and optimize power usage.
Image 6.1: Graph demonstrating the steady temperature control of the WINTEMP tankless heater compared to fluctuations in other water heaters.
6.2 WiFi Control
The unit is equipped with remote WiFi control, allowing you to adjust the temperature settings conveniently from your smartphone or other connected devices without needing to be near the water heater.
Image 6.2: The tankless water heater unit shown with a smartphone displaying the remote control interface for temperature adjustment and monitoring.
6.3 Energy Saving
The self-regulating technology ensures high energy efficiency. When water flow decreases, the system reduces power consumption. When not in use, it consumes no electricity, contributing to significant energy savings compared to traditional tank water heaters.
Image 6.3: Graph illustrating the temperature self-modulation technology and how it contributes to saving on water heating costs by only using electricity when water is flowing.
7. Maintenance
To ensure the longevity and optimal performance of your WINTEMP tankless water heater, regular maintenance is recommended.
- Filter Cleaning: Periodically check and clean the inlet filter screen to prevent sediment buildup.
- Visual Inspection: Regularly inspect the unit for any signs of leaks, corrosion, or damage to electrical connections.
- Professional Check: Consider an annual inspection by a qualified professional to ensure all components are functioning correctly and to address any potential issues.
- Unlike traditional tank heaters, this unit is non-scaling, reducing the need for descaling maintenance.
8. Troubleshooting
If you encounter issues with your WINTEMP tankless water heater, refer to the following general troubleshooting steps. For complex problems, contact customer support or a qualified technician.
- No Hot Water: Check power supply, ensure breakers are not tripped. Verify water flow. Ensure the unit is turned on.
- Insufficient Hot Water/Low Temperature: Verify the set temperature on the display or via the WiFi app. Check incoming water temperature and flow rate against the sizing chart (Image 5.3) to ensure the unit's capacity matches demand. Ensure the inlet filter is clean.
- Error Codes: If an error code appears on the LED display, consult the detailed troubleshooting section in the included instruction manual for specific remedies.
- Water Leakage: Immediately turn off the water supply and electrical power to the unit. Inspect connections for tightness. Contact a plumber if the leak persists.
- WiFi Connectivity Issues: Ensure your router is functioning and the unit is within range. Follow the WiFi connection instructions provided in the package.
9. Warranty and Support
WINTEMP provides a 2-year return and exchange warranty for this product. Additionally, long-term professional technical support is available to assist with any questions or issues you may encounter.
For warranty claims or technical assistance, please refer to the contact information provided in your included instruction manual or visit the official WINTEMP website.