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Installation Installing Vac Sensor Housing onto Support Bracket <br /> Installing Vac Sensor Housing onto Support Bracket <br /> Route all of the cables through the opening in the mounting bracket and attach the Vac Sensor housing to the <br /> bracket by pushing the four hooks on the rear of the housing into the four slots in the bracket (see Figure 9) <br /> STP Riser <br /> Vac sensor device Vac Sensor housing <br /> connection guide <br /> (use felt pen) ----------------------- <br /> L T S e <br /> ------------- <br /> Route cables through Vac Sensor housing <br /> opening in back of support bracket <br /> vacsensors/fig8.eps bracket <br /> Figure 9. Attaching Vac Sensor housing to support bracket <br /> Vacuum Connections within Containment Sump <br /> Vacuum Connections to a Double-Wall Product Line <br /> 1. Get a 1/4" NPT/ barbed adapter and spring clamp from the Vac Sensor install kit. <br /> 2. Apply an adequate amount of fresh, UL classified for petroleum, non-setting thread sealant (herein after <br /> referred to as sealant) to the threads of the 1/4" NPT barbed fitting and screw it into the 1/4" NPT port in the <br /> vacuum termination fitting of the product line (Figure 10). <br /> NOTE: In some installations, the double-walled piping is equipped with one or more Schrader valves. You can <br /> connect the vacuum tubing directly to the Schrader valve using the Schrader fitting (P/N 576008-672 for <br /> QNorth American installations; P/N 576008-504 for EU installations). <br /> NOTE: any unused Schrader fittings must be capped to avoid leaks. <br /> 3. Get the 1/4" ID tubing from the install kit and measure a piece that will reach the barbed fitting on the bottom <br /> of the plastic valve (see Figure 4) that is connected to the Vac Sensor/Vac Float pair you labeled 'P'. Plan <br /> enough tubing so that it isn't stretched between fittings or have any sharp bends/kinks in it. Cut and install this <br /> tubing and secure tubing ends with spring clamps. <br /> 11 <br />