The Murphy External Float Chamber 15700799 is designed for model MLS-020, MLS-015, LS200, LS200N, LS200NDVO and LS200NDVOR liquid level switches. See image #2 for a typical installation with blocking and bleed valves.
Installation Using Murphy External Float Chamber:
1. Install the Murphy float chamber 15051098 or 15700799 on the outside wall of the pressure vessel using 1” NPT piping or use the mounting surface with a bracket. Position the 2” NPT threaded connection at the height where you want the level switch to operate. The 2” NPT threaded connection must be positioned away from the tank wall.
2. A tee and bleed valve are typically installed at the bottom of the lower 1 inch pipe riser to allow draining of the float chamber for servicing or replacement.
3. Install the LS200 or LS200N/NDVO/NDVOR in the 2” NPT connection of the float chamber. BE SURE float travel is not restricted and that the float is tight onto the float shaft.
4. To complete installation and wiring, follow the instructions for mounting directly into wall of the vessel and for wiring.
NOTE: Float extensions cannot be used with float chambers.