Winter Maintenance on your Wet or Dry Sprinkler System

Winter weather is almost here!  Don’t forget about your sprinkler system.  If you have a sprinkler system protecting your building, there are several steps that you can take to prevent damage to your system from freezing temperatures.

Wet Systems A wet sprinkler system consists of a network of pipes filled with water.  During the winter months areas that contain the sprinkler piping and sprinkler valves must be kept above freezing.  This sometimes becomes an issue when a build owner decides to shut off the heat to save money in a vacant building.  Dry Sprinkler Systems In a dry sprinkler system, the sprinkler pipes are filled with air instead of water to protect unheated areas like parking garages or cold storage.  If you have a dry sprinkler system, these simple steps should be completed before the cold weather each year: 1. Drain the drum drips until they are free of moisture. Close the top valve and open the bottom valve to drain any water into a bucket or drain.  Repeat until no more water comes out. 2. Leave the valves of drum drips in the proper positions (the top valve should be open and the bottom valve closed).  3. Check to make sure the valve room is heated.  The area of the sprinkler piping does not need to be heated, but the valve room must be heated. 4. Drain priming to proper levels. 5. Check the operation of the air compressor. These five small steps can save you thousands in water damage and or piping repairs.  During our regular scheduled inspections,  Associated Fire Protection will check these items for you, but they may need to be checked more frequently depending on how many times we visit your location a year. If you have any additional questions, give us a call for at 973-684-7250.