Project fire 39084 views. 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.
Addendum No 2 To The Drawings And Specifications For
Potter osysu 2 wiring diagram. 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. This device is available in two models. An overview of all the new installation features of potters osysu supervisory switch. 800am 500pm cdt. Building owners should always insure property and lives being protected.
They will mount on some valves as small as ½ 125mm. The osysu 1 containing one set of spdt form c contacts and the osysu 2 containing two sets of spdt form c contacts. The osysu is used to monitor the open position of an osyoutside screw and yoke type gate valve. 7 if possible to avoid creating a pinch point between the wheel and the osysu. Potter amseco osysu 2 outside screw and yoke valve supervisory switch double switch upc. The osysu crh provides additional corrosion protection on top of the nema 4x enclosure with corrosion resistant mounting hardware.
Potter signal 68741 views. How to wire a potter vsr flow switch to a bell duration. Wiring a zonecheck addressable flow switch duration. These switches mount conveniently to most osy valves ranging in size from 2 to 12 50mm to 300mm. Position the osysu with the bracket near the handwheel as shown in fig. These switches mount conveniently to most osy valves ranging in size from 2 to 12 50mm to 300mm.
Lpc approved sizes are 2 thru 8 50 mm thru 200 mm. Supervisory switch alarm devices have a normal service life of 10 15 years. The osysu 1 containing one set of spdt form c contacts and the osysu 2 containing two sets of spdt form c contacts. They will mount on some valves as small as ½ 125mm. Osysu2 pl osysu2 the osysu is used to monitor the open position of an osy outside screw and yoke type gate valve. Schedules 10 through 40 sizes 2 thru 8 50 mm thru 200 mm and schedule 5 sizes 2 thru 6.
785192000556 also known as. See ordering information chart. It is ul listed and fm approved for use on steel pipe. Supervisory switch wiring diagram. The osysu 2 contains two sets of spdt form c contacts. Warning the limitations of supervisory switch alarm devices 3.
Supervisory switches are not a substitute for insurance. This device is available in two models.