System Sensor OSYEXP Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS Explosion Proof Valve Supervisory Switch 2.875 Read Carefully And Save manual contains important information about the and operation of supervisory switches These apply to System Sensor switches for outside Installation Considerations 1 2 OSYEXP models are equipped with a ground screw the switch housing for those applications where Yoke Valves Figure 1 suggests installing the valve with mounting inside the yoke is recommended However some Clearance Valves used in fire protection systems However some of valves especially those less than 11 2 in diameter irregularly shaped yokes or such limited clearances causes the valve to bind If this is the case the use of Procedure step 1 on valves 11 2 in diameter and smaller Proceed directly to step 2 if the switch is being on a valve larger than 11 2 in diameter the valve to its fully open position Remove the position of the retaining washers to provide suffi 1 Detail gate valve shown 2 through 12 When install 2 STEM THREADED VALVE HEX BAR NOT SHOWN HEX NUT BOLT Position the switch on the valve with the bolts on the from the valve gland and in a location where actuating lever contacts the unthreaded section of valve stem if the valve stem is already grooved When the switch is in position on the valve slide the actuating lever by loosening the lever screw The is properly adjusted when it clears the clamping clearances of the bolts actuator mounting bracket Remove Valves 11 2 in diameter and smaller only Use Valves larger than 11 2 inches in diameter only Mount Ensure the lever by loosening the lever screw sliding the Adjust the switch is open when the actuating lever is in should close when the valve is closed 1 5 of its Tighten the nuts securely with a wrench and check When removing the cover of the OSYEXP use less The circuit should indicate a closure during and actuator positions until the switch closes placed into service and at least semiannually or as the proper authorities that the supervi switch es is are u