How does an accelerator work on a dry system?

When a sprinkler head in the system is actuated so that the pressure in the main chamber of the dry pipe valve begins to decay, the accelerator senses the decay and introduces pressurized gas into the intermediate chamber of the differential-type dry pipe valve to effect the actuation thereof.Click to see full answer. Keeping this in consideration, how does a dry fire system work?A dry pipe sprinkler system is one in which pipes are filled with pressurized air or nitrogen, rather than water. Located in a heated space, the dry-pipe valve prevents water from entering the pipe until a fire causes one or more sprinklers to operate. Once this happens, the air escapes and the dry pipe valve releases.Additionally, how do I test if my sprinkler system is dry? Open all low-point drains until water stops flowing. Reset the dry pipe valve and any quick-opening device, if installed, according to the manufacturer’s instructions. Compare the data of trip pressure, trip time, and water delivery time to the inspector’s test connection with previous test records. Subsequently, question is, how does a dry pipe valve work? The dry pipe valve prevents water from entering the pipe until a fire causes one of the sprinklers to operate. If this occurs, then the valve releases the air, water flows into the pipe, and the sprinklers release the water onto the fire.How do you reset a sprinkler system? How to Reset a Sprinkler System Turn the control dial to the “off” position. Press the “next” button to access the clear-memory feature. Press and hold the “off” button until the display stops blinking. Turn the control dial to the “run” position. Press and hold down the “minus” arrow and “prog” buttons simultaneously.