What to Do When Your 2N Intercom Is Not Weatherproof
2N IP intercoms are renowned for their robust construction, but discovering moisture or water inside your unit can be alarming. While these devices are designed for outdoor use, their level of weatherproofing is dependent on the specific model's Ingress Protection (IP) rating and, most importantly, the quality of the installation. If your 2N intercom is failing due to weather exposure, this guide will help you understand the causes and solutions.
Step 1: Understand IP Ratings
The 'weatherproof' nature of an electronic device is defined by its IP rating. This two-digit number clarifies its resistance to solids (first digit) and liquids (second digit).
- Example: A 2N IP Verso has a rating of IP54. The '5' means it is protected against dust ingress, and the '4' means it is protected against splashing water from any direction. It is not protected against powerful water jets or submersion.
- Example: A 2N IP Force has a rating of IP69K. This means it is fully dust-tight and protected against high-pressure, high-temperature water jets.
It is crucial to know your model's IP rating. Using a model with a lower IP rating in a location with heavy, wind-driven rain can lead to water ingress.
Step 2: The Critical Role of Correct Installation
The number one reason a 2N intercom fails due to weather is improper installation. The IP rating is only valid when the unit is installed precisely according to the manufacturer's instructions.
Common installation errors that compromise weatherproofing:
- Missing or Damaged Gaskets: Every 2N intercom comes with rubber or foam gaskets. These must be clean, undamaged, and seated correctly during installation to create a seal.
- Improper Sealing: The gap between the intercom's frame and the wall is a common entry point for water. It is essential to apply a bead of outdoor-grade, non-acidic silicone sealant around the top and sides of the unit. Leave the bottom unsealed to allow any condensation to drain out.
- Incorrect Mounting Box: Using a flush-mount box in a surface-mount application (or vice versa) without the proper frame or hood will leave gaps for water to penetrate.
- Cable Entry Points: If the hole for the Ethernet cable is not sealed with a grommet or silicone, it provides a direct path for water to get behind and inside the unit.
- Lack of a Drip Loop: Cables should be looped below the entry point before coming up to the device. This 'drip loop' ensures that rainwater running down the cable drips off at the bottom of the loop instead of following the cable directly into the wall or the back of the intercom.
Step 3: What to Do If You Find Water Inside Your 2N Unit
If you suspect water has already entered your intercom, you must act quickly to minimise damage.
- Disconnect Power Immediately: The biggest danger from water ingress is a short circuit. Disconnect the Ethernet cable from the PoE switch or injector that powers the unit.
- Disassemble and Dry: Carefully remove the intercom from the wall. Open the housing according to the manual's instructions. Use a lint-free cloth to gently pat dry any visible moisture.
- Allow to Air Dry: Place the disassembled components in a warm, dry, well-ventilated area for at least 48-72 hours. Do not use a hairdryer or other direct heat source, as this can damage the electronics. Placing the components in an airtight container with silica gel packets can help accelerate the drying process.
- Inspect for Corrosion: Before reassembling, look for any green or white residue on the circuit board or connectors. This is a sign of corrosion and may indicate permanent damage.
- Test: Once you are certain the unit is completely dry, reassemble it and temporarily reconnect power to see if it functions.
Step 4: Prevention and Long-Term Solutions
- Re-install Correctly: The best solution is to remove the unit and re-install it, paying close attention to all the details mentioned in Step 2.
- Add a Rain Hood: For intercoms in highly exposed locations, 2N offers accessory rain shields or hoods. These provide an extra layer of protection by physically shielding the unit from direct rainfall.
- Regular Inspection: Periodically inspect the silicone seal around your intercom to ensure it is not cracked or peeling. Check that the unit remains securely fastened to the wall.
By understanding the importance of the IP rating and ensuring a meticulous installation, you can make sure your 2N intercom remains protected from the elements and functions reliably for years to come.