Osysu across the valve yoke as far from the valve gland as possible so that the spring loaded trip rod of the osysu is pulled against the non threaded portion of the valve stem. Supervisory switches are not a substitute for insurance.

Ul Fm Supervisory Switch China Ul Fm Supervisory Switch
Potter osysu 2 wiring diagram. 785192000556 also known as. They will mount on some valves as small as ½ 125mm. Lpc approved sizes are 2 thru 8 50 mm thru 200 mm. Position the osysu with the bracket near the handwheel as shown in fig. Warning the limitations of supervisory switch alarm devices 3. The osysu 2 contains two sets of spdt form c contacts.
These switches mount conveniently to most osy valves ranging in size from 2 to 12 50mm to 300mm. Potter signal 68741 views. The osysu 1 containing one set of spdt form c contacts and the osysu 2 containing two sets of spdt form c contacts. Supervisory switch alarm devices have a normal service life of 10 15 years. Potter amseco osysu 2 outside screw and yoke valve supervisory switch double switch upc. An overview of all the new installation features of potters osysu supervisory switch.
How to wire a potter vsr flow switch to a bell duration. The model vsr is a vane type waterflow switch with non corrosive insert for use on wet sprinkler systems. Potter osysu 1 installation on osy fire sprinkler valve duration. Osysu2 pl osysu2 the osysu is used to monitor the open position of an osy outside screw and yoke type gate valve. They will mount on some valves as small as ½ 125mm. Schedules 10 through 40 sizes 2 thru 8 50 mm thru 200 mm and schedule 5 sizes 2 thru 6.
See ordering information chart. This device is available in two models. The osysu 1 containing one set of spdt form c contacts and the osysu 2 containing two sets of spdt form c contacts. 7 if possible to avoid creating a pinch point between the wheel and the osysu. It is ul listed and fm approved for use on steel pipe. This device is available in two models.
The osysu is used to monitor the open position of an osyoutside screw and yoke type gate valve. Wiring a zonecheck addressable flow switch duration. Building owners should always insure property and lives being protected. These switches mount conveniently to most osy valves ranging in size from 2 to 12 50mm to 300mm. Supervisory switch wiring diagram. 800am 500pm cdt.
The osysu crh provides additional corrosion protection on top of the nema 4x enclosure with corrosion resistant mounting hardware. Project fire 39084 views.