Danfoss RA 2990-013G2990 Snap Sensing Element Instruction Manual

Introducció

The Danfoss RA 2990-013G2990 Snap Sensing Element is designed for use with Danfoss RA 2000 series valve bodies, providing efficient and responsive temperature control for heating systems. This element features gas technology for a rapid reaction time of approximately 10 minutes, ensuring quick temperature adjustments. Its innovative ratchet fastening system simplifies installation, requiring no special tools.

This manual provides essential information for the proper installation, operation, and maintenance of your Danfoss RA 2990-013G2990 Snap Sensing Element.

Figure 1: Danfoss RA 2990-013G2990 Snap Sensing Element. This image shows the white thermostatic head with a numbered dial (1-5) and the Danfoss logo.

Configuració i instal·lació

The Danfoss RA 2990-013G2990 Snap Sensing Element is designed for quick and tool-free installation, particularly when replacing older Danfoss RA series thermostatic heads.

Comprovació de compatibilitat

Important: The RA 2990 is compatible only with Danfoss RA valve bodies that have a 17 mm connection diameter. Verify your existing valve body's specifications before installation.

Figure 2: Compatibility diagram illustrating that the Danfoss RA 2990 thermostatic head replaces older Danfoss RA thermostatic heads produced before 1986, specifically for valve bodies with a 23 mm diameter. Note: While this diagram illustrates the general replacement concept for older Danfoss RA heads, please refer to the product specifications for the exact 17 mm valve body compatibility of the RA 2990-013G2990 model.

Figure 3: Compatibility table showing replacement options for older Danfoss thermostatic valves. The table indicates that for RAV (1965-1978) with 34 mm neck diameter, replacements are RA/V 2960 or RA/V 2962. For RAV L (1979-1986) with 26 mm neck diameter, replacements are RA/VL 2950 or RA/VL 2952. For RA 2000 (since 1987), the replacement is RA 2990 or RAW 5010. This product, RA 2990, is designed for RA 2000 series valves.

Passos d'instal·lació

1. Treure el sensor antic: If replacing an existing thermostatic head, carefully remove the old sensor from the valve body. This typically involves unscrewing or un-clipping it.
2. Position New Element: Align the Danfoss RA 2990-013G2990 Snap Sensing Element with the Danfoss RA valve body.
3. Encaixa al seu lloc: Press the element onto the valve body. The new ratchet fastening system allows the element to automatically snap into place once it reaches the stop. No tools are required for this step.
4. Verifiqueu l'ajust segur: Ensure the element is securely attached to prevent water leakage and ensure proper function.

Figure 4: The Danfoss RA 2990-013G2990 Snap Sensing Element installed on a radiator valve, demonstrating its compact and integrated appearance.

Instruccions de funcionament

The Danfoss RA 2990-013G2990 Snap Sensing Element functions as a manual temperature controller for your radiator. Once installed, you can adjust the desired room temperature using the numbered dial on the thermostatic head.

• Configuració de la temperatura: Rotate the dial to select your desired temperature. The numbers on the dial typically correspond to different temperature levels, with higher numbers indicating warmer settings.
• Protecció contra les gelades: The asterisk (*) setting usually indicates a frost protection mode, maintaining a minimum temperature to prevent pipes from freezing.
• Temps de reacció: The gas technology within the sensing element provides a rapid reaction time of approximately 10 minutes to changes in room temperature, allowing for quick and efficient heating adjustments.

Figura 5: Primer pla view of the Danfoss RA 2990-013G2990 dial, showing temperature settings from 1 to 5 and a frost protection asterisk symbol.

Manteniment

The Danfoss RA 2990-013G2990 Snap Sensing Element is designed for durability and requires minimal maintenance to ensure long-term performance.

• Neteja: Periodically wipe the exterior of the thermostatic head with a soft, damp drap per eliminar la pols i la brutícia. Eviteu utilitzar netejadors abrasius o dissolvents.
• Inspecció: Occasionally check for any visible damage or loose connections. Ensure the element is securely seated on the valve body.
• Sense servei intern: The sensing element is a sealed unit and does not require internal servicing. Do not attempt to disassemble the unit.

Resolució de problemes

If you experience issues with your Danfoss RA 2990-013G2990 Snap Sensing Element, consider the following common points:

• El radiador no escalfa/sobreescalfa:
  • Ensure the thermostatic head is set to the desired temperature and not on the frost protection setting (*).
  • Verify the element is securely attached to the valve body. A loose connection can prevent proper operation.
  • Check if the valve pin is stuck. Sometimes, especially after long periods of inactivity, the pin inside the valve body can become stuck. Gently pressing the pin (with the thermostatic head removed) can sometimes free it.
  • Ensure there are no obstructions blocking the sensor from accurately reading room temperature (e.g., curtains, furniture).
• Fuga d'aigua:
  • If water leakage occurs, immediately turn off the water supply to the radiator.
  • Re-check the installation of the sensing element to ensure it is correctly and securely snapped onto the valve body.
  • If leakage persists, it may indicate an issue with the valve body itself or the connection. Consult a qualified plumber.

For persistent issues or concerns, it is recommended to contact a qualified heating technician or Danfoss customer support.

Especificacions

Figure 6: Diagram showing the dimensions of the Danfoss RA 2990-013G2990 Snap Sensing Element: 8 cm (depth), 5.5 cm (width), and 5.5 cm (height).

Garantia i Suport

Per obtenir informació sobre la garantia del producte, l'assistència tècnica o el servei tècnic, consulteu la pàgina oficial de Danfoss. website or contact your local Danfoss distributor. Keep your purchase receipt as proof of purchase.

Danfoss products are manufactured to high-quality standards and are designed for long-lasting performance with proper installation and use.