Murphy Pressure Vessel Installation LS200, LS200N and L1100, Installation with a Weld Collar

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Pressure Vessel Installation: LS200, LS200N and L1100

Direct Installation into the Wall of the Pressure Vessel

1.Determine that the float travel is not obstructed by the coupling in the vessel wall, internal baffles, etc. Do NOT use more than one float shaft extension P/N 15000478.

2.Make certain the float and extension are tight.

3.Before installing the level switch, use of a pipe thread sealant is recommended. Screw the unit directly into the threaded connection in the wall of the pressure vessel.

4.For LS200 and L1100, verify that the electrical connection is positioned at the bottom.

5.For LS200N the 1/8” NPT pneumatic connection should be on top (the 3/8” NPT vent connection should be on the bottom) for service on a “Trip on Rising” application. The LS200N can be modified for service on a “Trip on Falling” application.

6.Make the electrical wiring connections according to appropriate wiring diagrams for the alarm or shutdown system to be used. The electrical connection is 1/2”-14 NPT.

7.Ensure all electrical connections are insulated and the cover is fully installed before reconnecting electrical power.

8.Verify all pressure connections are tight before pressurizing the system.

Installation with a Weld Collar

1.The weld collar, P/N 15050375, must be welded into the wall of the pressure vessel according to code standards and good welding practices.

2.Follow above instructions for installation directly into the wall of the pressure vessel.

NOTE: Weld collar 15050375 can be used ONLY with model LS200.

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Contents LS200, LS200N LS200NDVOR Series L1100 Liquid Level Switches Before Beginning Installation of this Murphy Product Table of Contents This page Intentionally Left Blank LS200 FeaturesProduct Information LS200NDVOR LS200NDVO LS200NInstallation with a Weld Collar Pressure Vessel Installation LS200, LS200N and L1100Direct Installation into the Wall of the Pressure Vessel Installation Using Murphy External Float Chamber Installation and Adjustment for Pneumatic ModelsTrip Cam Operating Lever Orientation Replacing and Installing the DVO Assembly Models LS200NDVO & LS200NDVOR Tools NeededInstructions DVOOrifice Adjustment with float Electrical Replacement Parts LS200NDVO and LS200NDVORAccessories L1100Weld Collar 55050617 DVU150/DVU175 Adapter BushingExternal Float Chamber CB External Float ChamberFloat Shaft Extension Specifications All ModelsSection 00-02-0563 01-11-06