TotalPac®2 Dry - FIREFLEX SYSTEMS

TOTALPAC2 Page 3 of 4TOTALPAC2 Integrated Fire Protection SystemDry Pipe Accelerator OptionINSPECTION:Weekly inspection is recommended. If the system isequipped with a low air (or nitrogen) alarm, monthlyinspections may be adequate.1. Check the air pressure gauge located on the top of theaccelerator. Air pressure in the upper chamber of theaccelerator should equal the air pressure maintained inthe system on which it is installed. A difference inpressures other than slight variation due to gaugecalibration tolerance may indicate: Gauge malfunction,plugged accelerator orifices and/or filters,or othermaintenance is required.2. Check position of ½” (15 mm) NPT Ball Valve.Verify that the Anti-flood isolation valve and Acceleratorisolation valve are OPEN.3. Verify that all other trim valves are in their appropriatenormal operating position.4. Check for signs of mechanical damage and/or corrosiveactivity. If detected, perform maintenance as required or,if necessary, replace the device.5. Verify that accelerator and trim are adequately heated andprotected to prevent freezing and physical damage.After every operation, and each time water is allowed toenter the system:1. Inspect the interior of the accelerator for the presence ofwater. Dampness or condensation may indicate that theairsupply is not being dried adequately. An accumulation ofwater in the accelerator inlet chamber and associated trimpiping may indicate that the float check valve (locatedbetween the accelerator and the air inlet to the dry valve)is fouled open, allowing system water to leak past theseat when the dry valve operates filling the system withwater. If water is allowed to enter the middle and/or upperchamber of the accelerator, it may contaminate theaccelerator orifices and may prevent it from operatingproperly. Also, when the system operates, if water isallowed to flow into the inlet chamber of the accelerator,water will flow out of the vent opening in the bottom of theaccelerator until water supply to the dry valve is shut off.2. If dampness is found, take appropriate steps to ensure theair supply is adequately dried.3. If an accumulation of water is found in the accelerator inletchamber and associated trim piping, conduct an internalinspection of the spring loaded check valve. Clean theseat and or clapper as required.4. When the inspection is finished, replace the ½” (15 mm)NPT plug removed in step 1 above.FM-086G-0-52C