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2 Vac Sensor Installation Field Assembling Vac Sensor/Vac Float modules <br /> elbow into the other port of each Vac Float. Orient elbow and valves in Vac Floats as shown in Figure 2-4 then <br /> tighten nuts to secure the fittings . <br /> 6 . Get the angled support brackets from each Vac Float kit. Depending on the Vac Float' s position in the housing , <br /> orient the bracket so that when you slip the large hole in the front of the bracket over the valve handle , the two <br /> holes in the side of the bracket are in line with the two holes in the side of the Vac Float body as shown in <br /> Figure 2 -3 . Secure the Vac Float assembly to the housing using two # 10 x 1 / 2 " self-tapping screws which <br /> screw into the two holes in the side of the Vac Float. <br /> # 10 x 3/8" self-tapping screws T4 � 4 T <br /> ; <br /> (2 each Vac Sensor) ; <br /> Vac Sensor - STP Vac Sensor <br /> Siphon port (typ.) housing - back <br /> Vac Sensor housing front -�_ (2) # 10 x 1 /2" self-tapping <br /> screws (typ. ea. valve/vac <br /> float ass'y.) <br /> o° o ° <br /> 0 <br /> ° 00 <br /> Co <br /> CO <br /> CO <br /> CO <br /> 00 <br /> Left hand ass'y <br /> Right hand ass'y <br /> Figure 2. 3.0 Attaching Four Vac Sensors/floats To The Housing <br /> 7 . Get barbed elbows, tapered bushings and cord grip nuts ( 1 each for each Vac Sensor) from the secondary <br /> piping vacuum monitoring kits. Insert a tapered bushing and barbed elbow in the bottom port labeled VAC <br /> TEST (embossed on cover) of one of the Vac Sensors. Orient the elbows as shown in the Figure 2-4, then <br /> tighten the cord grip nut. <br /> 8 . From the kit' s 1 /4 " tubing , cut a piece of the 1 /4 " tubing and connect the VAC TEST port in one of the Vac <br /> Sensors to the rear elbow fitting in one of the Vac Floats (preferably the one under it) . Keep the connection kink <br /> free and as short as possible (see Figure 2-4) . Repeat this procedure for each additional Vac Sensor/Vac Float <br /> pair. Skip to Step 10 . <br /> 9 . If the tank interstice is monitored , get a barbed elbow, tapered bushing and cord grip nut ( 1 each) from the Vac <br /> Sensor tank interstice monitoring kit. Insert a tapered bushing and barbed elbow into the bottom port labeled <br /> VAC TEST (embossed on cover) of the Vac Sensor without a Vac Float. Orient the elbow as shown in the <br /> Figure 2-5 , then tighten the cord grip nut. <br /> 10 . Get the barbed tees , tapered bushings, cord grip nuts and one barbed elbow from the vacuum monitoring kits . <br /> 111ooking at the front of the Vac Sensor housing , insert the elbow in the side vacuum port bushing labeled 'STP <br /> Siphon ' (on the Vac Sensor cover) in the Vac Sensor closest to the side of the housing . Orient the elbow so <br /> that the open half is horizontal and pointing to the other Vac Sensors (see Figure 2-6) . Insert a tee in the same <br /> vacuum port in each of the other Vac Sensors . Orient the tees in the horizontal position , except the Vac Sensor <br /> closest to the other side of the Vac Sensor housing . Remove this tee and orient it so that one end points <br /> 2-3 <br />