1. Introduction
The IGT A300 USL Single Stage Low Pressure Gas Regulator is designed to safely and efficiently regulate the flow of propane gas from your cylinder to various outdoor gas appliances. This manual provides essential information for the proper installation, operation, and maintenance of your regulator.
2. Safety Information
WARNING: Gas appliances and regulators must be handled with extreme care. Improper installation or use can lead to gas leaks, fire, explosion, and serious injury or death.
- Always ensure the gas source is turned off by rotating the valve on the propane tank before installing or removing the regulator.
- Verify compatibility: This regulator is designed for LPG/Propane gas appliances requiring an 11 inches water column (approx. 0.4 PSI) output pressure. It is NOT for natural gas appliances, which typically require different pressure levels. Always check the specifications of your gas source and appliance.
- Inspect for damage: Before each use, visually inspect the regulator and hose for any signs of damage, cuts, cracks, or excessive wear. Do not use if damaged.
- Leak test: After connecting the regulator, always perform a leak test using a soapy water solution. Apply the solution to all connections. Bubbles indicate a leak. If a leak is detected, turn off the gas immediately and tighten connections or replace faulty parts. Do not use an open flame to check for leaks.
- Outdoor use only: This regulator is intended for outdoor use with outdoor gas appliances.
- Keep away from heat: Ensure the hose is routed away from any extreme heat sources.
3. Product Overview
The IGT A300 USL regulator reduces the high pressure from a propane tank to a safe, consistent low pressure required by your appliance. It features a durable construction and is compatible with common propane tank connections.
Figure 3.1: IGT A300 USL Low Pressure Propane Gas Regulator with attached hose.
Figure 3.2: Key features and compatibility of the A300 USL regulator.
4. Setup and Installation
- Prepare the Tank: Ensure your propane tank valve is fully closed by turning it clockwise.
- Connect to Tank: The regulator is compatible with both QCC (Type 1) and POL inlet connections.
- For QCC connections, simply screw the large black nut onto the tank valve by hand, turning clockwise until snug.
- For POL connections, the regulator will screw into the tank valve.
Figure 4.1: Regulator connected to the propane tank valve.
- Connect to Appliance: The outlet connection for this regulator is 5/8 inch with 18 UNF threads. Connect the hose end to your gas appliance's inlet. Ensure a secure, gas-tight connection.
Figure 4.2: Close-up of the hose end for appliance connection.
- Perform Leak Test: After all connections are made, open the propane tank valve slowly. Apply a soapy water solution to all connections (tank to regulator, regulator to hose, hose to appliance). If bubbles appear, there is a leak. Immediately close the tank valve, tighten connections, and re-test. Do not proceed until all leaks are eliminated.
5. Operation
Once the regulator is securely installed and leak-tested:
- Slowly open the propane tank valve.
- Follow your appliance's instructions for ignition and operation. The regulator will automatically maintain the required low pressure (11 inches water column) for your appliance.
- When finished, always close the propane tank valve first, then turn off the appliance.
6. Maintenance
- Regularly inspect the hose and connections for wear, damage, or signs of leaks.
- Keep the regulator clean and free from debris.
- Store the regulator in a dry, protected area when not in use, especially during off-season.
- Do not attempt to disassemble or repair the regulator. If it is faulty, replace it with a new, compatible unit.
7. Troubleshooting
- No Gas Flow or Low Pressure:
- Check if the propane tank valve is fully open.
- Ensure there is sufficient propane in the tank.
- Perform a leak test on all connections.
- Check for kinks or blockages in the hose.
- If the issue persists, the regulator may be faulty and require replacement.
- Gas Odor:
- Immediately turn off the gas at the tank.
- Evacuate the area.
- Perform a thorough leak test. If a leak is found and cannot be resolved by tightening connections, do not use the product. Contact a qualified technician or emergency services.
8. Specifications
| Model | A300 USL |
| Inlet Pressure Range | 25 - 250 PSI |
| Outlet Pressure | 11 inches Water Column (approx. 0.4 PSI) |
| Flow Rate Capacity | 1.5 kg/hour (approx. 70,000 BTU/hr) |
| Inlet Connection | QCC and POL compatible |
| Outlet Connection | 5/8 inch - 18 UNF threads |
| Product Dimensions | 20.32 x 20.32 x 7.62 cm (8 x 8 x 3 inches) |
| Product Weight | 340 grams (0.75 lbs) |
9. Warranty and Support
This IGT A300 USL Low Pressure Propane Gas Regulator comes with a 5-year warranty from Integrated Gas Technologies. For warranty claims or technical support, please refer to the contact information provided with your purchase or visit the official Integrated Gas Technologies website.
Integrated Gas Technologies has over 40 years of experience in the global LPG regulator industry, committed to providing safe and reliable gas equipment.
