How To Test A Sprinkler System
Testing the Control Valve The first step when inspecting the sprinkler system is to test the butterfly control valve. These checks include water flow tests fire pump tests antifreeze concentration tests in applicable systems alarm tests and trip tests of dry pipe deluge and pre-action valves.
Troubleshooting Testing Power To A Sprinkler Valve Sprinkler Valve Sprinkler Repair Sprinkler
Quarterly inpsections semi-annual and annual fire sprinkler system testing and tagging must be performed and documented by a licensed technician in accordance with NFPA25 and your AHJ.
How to test a sprinkler system. It probably is a 2 person job to test. Turn the irrigation controller off manually. Jeffrey Knight of Ewing Irrigation explains why and shows you how t.
Each sprinkler is placed inside a testing apparatus that exposes it to airflow with controlled velocity and temperature. Fire Sprinkler Testing Timeline. Your system is equipped with an automatic alarm designed to provide an audible.
Each cycle will be brief perhaps up to 5 minutes each. Inspection tags for fire sprinkler systems must be current. If any sprinkler has been damaged or painted it shall be replaced immediately.
Performing regular inspections is important to the maintenance of your irrigation system. The full-flow test requires two technicians. If you think the leak is in a water line look for sprinkler heads in a zone that arent working or that have very low pressure.
You can use a multimeter to test between the common terminal and zone terminalif the voltage is too low they should be between 24 to 28 volts you will need to replace the entire controller. Testing them yourself can also cause damage and your results may not be accurate. If the systems are exposed to more than 150 psi 104 bar working pressure they must be tested at a pressure of 50 psi 35 bar in excess of system working pressure.
While exercising the valve closing in this scenario the control valve has a tamper switch installed the tamper will transmit a supervisory signal and or a. Because safety is the main concern with these sort of installations it is essential that you call a trained professional from either the fire department or the sprinkler manufacturer. Look for sprinkler heads that dont spray properly or have low water flow First you must locate the leak.
One to push the test button another to follow the activity and record which section is irrigated by 1 2 3 etc. Typically dry sprinkler testing is performed by submitting a random sampling of sprinklersthe greater of four sprinklers or 1 percent of the total number of sprinklersto a plunge test. A how-to video on troubleshooting sprinkler SolenoidYou will first notice a bad solenoid problem once the fuse blows or the lawn isnt getting watered.
The controller typically has a test button or something similar. One at the dry pipe valve and the other at the inspectors test connection which is usually located at the end of the highest most distant sprinkler pipe on a dry system. It must be conducted by a licensed fire sprinkler contractor such as Capitol Fire Sprinkler in the presence of the Fire Department.
For example if the normal water pressure in a neighborhood is 175 psi 12 bar the sprinkler system must be hydrostatically tested to at least 225 psi 155 bar. Check the wires and make sure they are intact. Turn the multimeter dial to the Ohms setting says Sprinkler Warehouse.
The test is completed by applying hydrostatic pressure to the fire department connection and maintaining the pressure for up to 2 hours. The low-voltage wires leading from the controller to the zone valves solenoid may be damaged or disconnected. If there is a significant addition or modification to an existing system.
Storage items placed too close to the sprinkler which would affect the spray in the event of a fire. During a complete fire sprinkler system test the technician should perform physical checks on all parts of your fire sprinkler system. Turn the screw on the defective zone.
Testing your fire sprinkler system is not something you should do yourself.
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