Description

The Potter PS10-2 Pressure Switch are design for the detection of a waterflow condition in automatic fire sprinkler systems of particular designs such as wet pipe systems with alarm check valves or deluge valves. The PS10 is also suitable to provide a low pressure supervisory signal; adjustable between 4 and 15 psi (0,27 and 1,03 BAR).

The operation of the pressure switch should be test upon completion of installation and periodically; thereafter in accordance with the applicable NFPA codes and standards and/or the authority having jurisdiction. When using control unit with retard connect the Potter PS10-2 Pressure Switch into alarm port piping on the input side of retard chamber and electrically connect PS10 that provides a retard to compensate for surges.

Also, insure that no unsupervised shut-off valves are present between the alarm check valve and PS10 for local bell application or with a control that does not provide a retard feature the PS10 must be installed on the alarm outlet side of the retard chamber of the sprinkler system. Testing: Accomplished by opening the inspector’s end-of-line test valve. Allow time to compensate for system or control retard.

Connect PS10 into alarm port piping that extends from the intermediate chamber of the alarm check valve. Install on the outlet side of the in-line check valve of the alarm port piping. Insure that no unsupervised shut-off valves are present between the alarm check valve and the PS10