Introduction
This manual provides essential information for the installation, operation, and maintenance of your Drayton TRV4 Chrome Thermostatic Radiator Valve. The TRV4 is designed to offer precise temperature control for your heating system, featuring frost protection and a positive shut-off mechanism. It complies with EN 215 standards and operates within a temperature range of 10-27 degrees Celsius.
Product Features
- Liquid Sensor: Ensures accurate and responsive temperature sensing for optimal comfort.
- Bi-Directional Valve Body: Allows for flexible installation, accommodating flow in either direction.
- Lockshield Option: Provides a means to balance the heating system.
- Range Limit Feature: Enables setting minimum and maximum temperature limits for energy efficiency and safety.
- Energy Saving Trust Approved: Certified for its contribution to energy efficiency.
Setup and Installation
The Drayton TRV4 is designed for straightforward installation. It comes with a 15mm angled connection, suitable for most standard radiator setups. Due to the bi-directional valve body, the valve can be installed without concern for flow direction, simplifying the process.
Image: The Drayton TRV4 Chrome Thermostatic Radiator Valve. The image displays two components: the main TRV head with a numbered dial (3, 4, 5) and the Drayton TRV 4 branding, and a smaller, simpler lockshield valve. Both are finished in chrome and feature threaded connections for plumbing.
General Installation Notes:
- Ensure the heating system is drained and isolated before beginning installation.
- Connect the 15mm angled valve body to the radiator and pipework using appropriate plumbing techniques and seals.
- Attach the thermostatic head to the valve body. Ensure it is securely fastened.
- For optimal performance, install the TRV horizontally, away from direct heat sources or drafts that could affect its temperature sensing.
- After installation, refill and vent the system, then check for leaks.
Note: It is recommended that installation be carried out by a qualified professional to ensure correct and safe operation.
Operating Instructions
The TRV4 allows you to control the temperature of individual rooms. The valve head features a numbered dial for setting the desired room temperature.
- Temperature Setting: Rotate the chrome head to align the desired number with the indicator mark. The temperature range is approximately 10°C (lowest setting) to 27°C (highest setting).
- Frost Protection: Setting the valve to its lowest position (often marked with an asterisk or snowflake symbol, though not explicitly stated for this model, it's a common TRV feature) will activate frost protection, preventing the room temperature from dropping below approximately 5-7°C.
- Positive Shut-Off: The valve features a positive shut-off, meaning it can completely close the flow to the radiator when turned to its minimum setting, allowing for radiator removal or maintenance without draining the entire system.
- Range Limit Feature: If desired, the temperature range can be limited by adjusting internal clips or pins on the valve head (refer to specific installation guide for detailed instructions on this feature). This prevents users from setting temperatures outside a predefined range.
Maintenance
The Drayton TRV4 is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure its continued efficiency.
- Cleaning: Wipe the chrome surface with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish.
- Functionality Check: Periodically rotate the valve head through its full range of settings to ensure smooth operation and prevent sticking.
- Leak Inspection: Visually inspect the valve and connections for any signs of water leaks, especially after the heating system has been off for an extended period.
Troubleshooting
If you encounter issues with your TRV4, consider the following common troubleshooting steps:
- Radiator Not Heating:
- Ensure the TRV is set to a higher number than the current room temperature.
- Check if the valve pin is stuck. Remove the thermostatic head and gently press the pin to ensure it moves freely.
- Verify that the system pressure is adequate and the boiler is operating correctly.
- Room Too Hot/Cold (despite TRV setting):
- Ensure the TRV is not obstructed by curtains, furniture, or other items that could trap heat or block airflow, affecting its sensor.
- Check for drafts near the TRV that could cause it to register a lower temperature than the rest of the room.
- The system may need re-balancing. Consult a heating engineer.
- Leaking Valve:
- Tighten connections carefully. Do not overtighten.
- If the leak persists, the valve may require professional repair or replacement.
For persistent issues, contact a qualified heating engineer or Drayton customer support.
Specifications
| Attribute | Detail |
|---|---|
| Brand | Drayton |
| Model Number | TRV4 |
| Part Number | TRV4 |
| Item Weight | 1.31 pounds |
| Product Dimensions (L x W x H) | 0.59 x 0.59 x 0.59 inches |
| Style | Modern |
| Item Package Quantity | 1 |
| Included Components | TRV 15mm Angled |
| Temperature Range | 10-27 degrees Celsius |
| Compliance | EN 215 |
| Batteries Required? | No |
| Date First Available | October 8, 2014 |
Warranty and Support
For information regarding the product warranty, please refer to the documentation included with your purchase or visit the official Drayton website. For technical support, installation queries, or troubleshooting assistance beyond this manual, please contact Drayton customer service directly.
You can typically find contact details on the manufacturer's website or on the product packaging.
