1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your VELPAX 5.26 GPM 20L Outdoor Propane Tankless Water Heater. Please read this manual thoroughly before attempting to install or operate the unit. Retain this manual for future reference.
Image 1.1: VELPAX 5.26 GPM 20L Outdoor Propane Tankless Water Heater with its digital remote control unit.
2. Safety Information
Important: Failure to follow these safety instructions could result in property damage, personal injury, or death. This appliance must be installed by a qualified professional in accordance with all local codes and regulations.
- Propane Gas: This unit is designed exclusively for use with propane (LPG). Do not attempt to use natural gas or any other fuel type. Ensure proper ventilation and leak detection for propane connections.
- Outdoor Installation: This water heater is designed for outdoor use only. Do not install indoors. Ensure the installation location is clear of combustible materials and has adequate air circulation.
- Water Pressure: Operate within the specified water pressure range of 3.16-150 PSI.
- Electrical Connection: Connect to a standard 120V AC outlet. Ensure the outlet is properly grounded.
- Freeze Protection: The unit features anti-freeze protection. However, in extremely cold conditions, additional measures may be necessary to prevent freezing.
- Overheating Protection: The unit is equipped with an overheating protection system that will shut off the heater if temperatures exceed safe limits.
- Flame Failure Device: A flame failure device is integrated to automatically shut off the gas supply if the flame extinguishes.
Image 2.1: Internal components highlighting multiple security protections including stainless steel vent, heat exchanger, burners, ignition needle, fan, gas proportional valve, and water flow sensor.
Image 2.2: The water heater is designed for outdoor use, featuring windproof, anti-freeze, and waterproofing capabilities for various weather conditions.
3. Product Overview and Features
The VELPAX 5.26 GPM 20L Outdoor Propane Tankless Water Heater provides on-demand hot water with precise temperature control and multiple safety features. Its robust construction ensures durability and efficient performance.
Key Features:
- High Capacity: Delivers up to 5.26 gallons per minute (GPM) of hot water, suitable for 3-4 fixtures simultaneously.
- Powerful Output: 120,000 BTU per hour heating capacity.
- Durable Construction: Features a stainless steel body for corrosion resistance and an oxygen-free copper water tank for efficient heat transfer and extended lifespan.
- Precise Temperature Control: Advanced water servo technology and built-in temperature sensors maintain water temperature fluctuations within ±1℉. Adjustable temperature range from 95℉ to 149℉.
- Intelligent Combustion: Four-stage combustion system adapts to seasonal changes for stable water temperatures year-round.
- Digital Display & Remote Control: LED smart digital display on the unit and a remote control panel for convenient temperature adjustments and feature activation from indoors.
- Multi-Protection: Includes flame failure device, anti-freeze protection, and overheating protection.
Image 3.1: The intelligent combustion system adjusts flame intensity (small, medium, conflagration) to maintain stable water temperatures across different seasons.
Image 3.2: The unit features a brass heat exchanger for high heat transfer efficiency and corrosion resistance. The water inlet includes a screen to filter impurities.
4. Setup and Installation
This water heater is designed for quick and easy outdoor setup. Professional installation is highly recommended to ensure compliance with all safety standards and local codes.
Installation Requirements:
- Location: Must be installed outdoors in a well-ventilated area, away from windows, doors, and air intakes. Ensure adequate clearance from combustible materials.
- Mounting: Securely mount the unit to a sturdy wall or structure using appropriate mounting accessories.
- Water Supply: Connect to a cold water inlet (1/2" NPT) and a hot water outlet (1/2" NPT). Ensure water pressure is within 3.16-150 PSI.
- Gas Supply: Connect to a propane (LPG) gas supply (1/2" NPT gas inlet). All gas connections must be leak-tested.
- Electrical Supply: Plug into a standard 120V AC grounded outlet.
- Remote Control: The remote control panel connects via a wire controller (up to 16ft long) to the unit. Ensure the wire controller is connected with power off.
Image 4.1: Overview of product connections including water inlet, gas inlet, power cable, control panel connection, and water outlet.
Image 4.2: Product dimensions are 14.4 inches (36.5 cm) in width, 5.9 inches (15 cm) in depth, and 22.8 inches (58 cm) in height. The power cable is 51.2 inches (130 cm) long, and the remote controller cable is 16 feet (490 cm) long.
5. Operating Instructions
The water heater is operated via its digital display and the remote control panel. Ensure all connections are secure and the gas supply is open before operation.
Remote Control Functions:
Image 5.1: The remote control panel allows for precise temperature adjustment and feature control from indoors.
- Power On/Off (6): Press to turn the unit on or off. In the power-off state, it acts as a confirmation key.
- Add Temperature Key (3): Press and hold the 'TEMP' up button to continuously increase the set temperature.
- Minus Temperature Key (4): Press and hold the 'TEMP' down button to continuously decrease the set temperature.
- Energy Saving Key (1): Enable or disable energy-saving features.
- Bathtub Key (2): Enable or disable the bathtub flush function.
- Smart Key (5): Enable or disable the prioritization feature.
The digital display shows the current water temperature in Fahrenheit. Adjust the desired temperature using the remote control within the range of 95℉ to 149℉.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your water heater. Always turn off the gas and power supply before performing any maintenance.
- Exterior Cleaning: Clean the exterior casing with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ventilation: Ensure the ventilation openings are clear of debris, leaves, or insect nests. Proper airflow is crucial for safe operation.
- Water Inlet Filter: Periodically check and clean the filter screen at the water inlet to prevent blockages and maintain water quality.
- Freeze Protection: While the unit has anti-freeze protection, in prolonged sub-zero temperatures, consider draining the unit or using additional insulation if recommended by a professional.
- Professional Inspection: It is recommended to have a qualified technician inspect the unit annually, especially the gas connections and heat exchanger, to ensure safe and efficient operation.
7. Troubleshooting
If you encounter issues with your water heater, refer to the following common troubleshooting steps. For complex problems, contact a qualified technician.
Common Issues and Solutions:
- No Hot Water:
- Check if the unit is powered on and the gas supply is open.
- Verify water flow and pressure. The unit requires a minimum water pressure to activate.
- Ensure the remote control is properly connected and the desired temperature is set.
- Inconsistent Water Temperature:
- Check for adequate water flow. Low flow can cause temperature fluctuations.
- Ensure the gas supply is stable.
- Clean the water inlet filter if it's obstructed.
- Unit Not Igniting:
- Confirm gas supply is on and propane tank is not empty.
- Check electrical connection and ensure power is supplied.
- Listen for ignition clicks. If no clicks, there might be an issue with the igniter or gas valve.
- Error Codes on Display:
- Refer to the specific error code in the full product manual (if available) or contact customer support for diagnosis.
8. Specifications
| Specification | Value |
|---|---|
| Brand | VELPAX |
| Model Number | HW-XGRSQ-20L |
| Fuel Type | Propane (LPG) |
| Flow Rate | 5.26 GPM (Gallons Per Minute) |
| Heating Output | 120,000 BTU/hour |
| Temperature Range | 95℉ - 149℉ |
| Water Pressure Range | 3.16 - 150 PSI |
| Power Supply | 120V AC |
| Product Dimensions (W x D x H) | 14.4 x 5.9 x 22.8 inches (36.5 x 15 x 58 cm) |
| Item Weight | 30.6 pounds |
| UPC | 762744689162 |
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact VELPAX customer service. Keep your purchase receipt as proof of purchase for any warranty claims.
Refer to the official VELPAX website or the documentation included with your purchase for specific warranty terms and contact details.
