Product Overview
The Danfoss RA-N 15 1/2 adjustable angle valve body is a high-quality component designed for integration into modern heating systems. It serves as the foundational element for a thermostatic radiator valve (TRV) system, allowing for efficient and precise control over the heat output of individual radiators. This valve body is engineered for durability and reliable performance, ensuring optimal comfort and energy savings when combined with a suitable thermostatic sensor.
This image displays the Danfoss RA-N 15 1/2 adjustable angle valve body, featuring its robust brass and silver metallic construction. The valve is designed for precise flow control in heating systems.
Safety Information
Please read and understand all safety instructions before installation and operation. Failure to follow these instructions may result in property damage, injury, or death.
- Installation should only be performed by a qualified professional in accordance with local plumbing and heating regulations.
- Always turn off the main water supply and drain the heating system before attempting any installation or maintenance.
- Be aware that heating system components can become very hot during operation. Allow components to cool before handling.
- Do not use this product for purposes other than its intended use in heating systems.
- Keep out of reach of children.
Package Contents
Verify that all items are present and undamaged upon opening the package.
- 1 x Danfoss RA-N 15 1/2 Adjustable Angle Valve Body
- 1 x Protective Cap (white)
The image shows the Danfoss RA-N 15 1/2 adjustable angle valve body alongside its white protective cap, which is typically removed before installing a thermostatic head.
Setup and Installation
This section provides general guidelines for installing the Danfoss RA-N 15 1/2 valve body. Professional installation is highly recommended.
- Prepare the System: Turn off the main heating system and allow it to cool down. Isolate the radiator by closing any existing valves and drain the water from the radiator or the entire system if necessary.
- Remove Old Valve (if applicable): Carefully unscrew and remove the old radiator valve. Be prepared for residual water.
- Prepare Connections: Ensure the radiator and pipe connections are clean and free of debris. Apply appropriate thread sealant (e.g., PTFE tape or pipe sealing compound) to the valve threads.
- Install Valve Body: Screw the Danfoss RA-N 15 1/2 valve body onto the radiator inlet connection. Ensure it is oriented correctly for an angle connection. Tighten securely using a suitable wrench, but do not overtighten.
- Connect Pipework: Connect the heating system pipework to the other end of the valve body. Ensure all connections are watertight.
- Refill and Bleed: Once the valve body is installed, refill the heating system and bleed any air from the radiators and pipework. Check for leaks at all connections.
- Install Thermostatic Head: Once the system is refilled and checked, remove the white protective cap from the valve body. Install a compatible Danfoss RA thermostatic radiator valve head onto the valve body according to the head's instructions.
A side view of the Danfoss RA-N 15 1/2 valve body, illustrating its angled design suitable for specific radiator connections.
Operating Instructions
The Danfoss RA-N 15 1/2 valve body itself does not have user-adjustable controls. Its operation is entirely dependent on the thermostatic radiator valve (TRV) head that is mounted onto it. Once a compatible TRV head is installed, you can control the temperature of the room by adjusting the setting on the TRV head. The valve body will then regulate the flow of hot water into the radiator based on the room temperature and the TRV head's setting.
Refer to the instruction manual of your specific Danfoss TRV head for detailed operating instructions, including temperature settings and frost protection features.
Maintenance
The Danfoss RA-N 15 1/2 valve body is designed for long-term, maintenance-free operation. However, general heating system maintenance practices should be followed:
- Regular System Checks: Periodically check your entire heating system for leaks or unusual noises.
- Bleeding Radiators: Bleed radiators regularly to remove trapped air, which can affect heating efficiency.
- Cleaning: Keep the exterior of the valve body clean. Do not use abrasive cleaners or solvents.
- Frost Protection: If the heating system is to be shut down for an extended period during cold weather, ensure adequate frost protection measures are in place for the entire system to prevent freezing and damage to pipes and components.
Troubleshooting
Most issues related to radiator heating are often due to the thermostatic head or general system problems rather than the valve body itself. However, here are some common scenarios:
| Problem | Possible Cause | Solution |
|---|---|---|
| Radiator not heating up | TRV head stuck or set too low; air in radiator; system pressure too low. | Check TRV head setting; try to free the pin on the valve body (gently push down); bleed radiator; check system pressure. |
| Radiator always hot | TRV head not closing valve; valve pin stuck open. | Ensure TRV head is correctly installed and functioning; gently try to push the valve pin down to ensure it moves freely. |
| Leakage at connections | Improperly tightened connections; insufficient thread sealant. | Turn off water supply, drain, and re-tighten connections with proper thread sealant. If problem persists, consult a professional. |
If you are unable to resolve an issue, it is recommended to contact a qualified heating engineer.
Specifications
- Brand: Danfoss
- Model: RA-N 15 1/2
- ASIN: B007C1RN3W
- Type: Adjustable Angle Valve Body
- Connection Size: 1/2 inch (DN15)
- Material: Brass / Metallic
- Color: Metallic (Brass/Silver)
- Date of First Availability on Amazon.com.be: April 22, 2022
Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Danfoss website. Danfoss products are known for their quality and reliability, and support is available for their range of heating solutions.
Danfoss Official Website: www.danfoss.com
