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ISD Flow Meter Installation Guide Installation Steps- Vacuum Assist System Below Shear Valve <br /> � Black <br /> To Seal-off From <br /> Console ISD Flow Meter <br /> + White <br /> ­'�1/2"rigid/ J <br /> conduit <br /> Epoxy sealed connections in a <br /> sd-evr\v.rmw r eps weatherproof junction box <br /> Figure 2. Field wiring Vapor Flow Meter-Observe Polarity <br /> Installation Steps - Vacuum Assist System Below Shear Valve <br /> NOTE:The Vapor Flow Meter should be installed prior to setting the dispenser in place or prior to <br /> installing any vacuum assist retrofit kits. If retrofitting the vacuum assist system,follow all <br /> manufacturer's instructions. <br /> 1. Before installing this device, turn Off, tag/lock out power to the system, including console and submersible <br /> pumps. <br /> 2. Remove the dispenser's lower sheet metal doors to access the vapor plumbing, if necessary. <br /> 3. If a retrofit vacuum assist kit will be installed, remove any hardware specified in the manufacturer's installation <br /> instructions. Do not install the retrofit assembly at this time. <br /> 4. Remove any unneeded field installed plumbing between the vapor shear valve and the vapor return line fitting. <br /> Figure 3 shows two example installations of the Vapor Flow Meter with the required lateral or wye fitting for <br /> running the TP-201.4 back pressure test. Approximately 3 inches of clearance is required on both sides of the <br /> piping to accommodate the width of the meter body. <br /> 5. Connect the lower flange to the pipe that is connected to the lateral or wye access fitting (see Figure 4). <br /> 6. Install the Vapor Flow Meter over the lower flange. <br /> 7. Connect the upper flange with serviceable screen above the Vapor Flow Meter. <br /> 8. Using a close nipple, thread the shear valve into the upper flange. <br /> 9. Install the vacuum assist retrofit kit, if required,following the retrofit kit manufacturer's installation instructions - <br /> or fit the dispenser to its permanent mounting points. <br /> 10. Using nipples, unions, and other plumbing as required, connect the vacuum assist outlet to the shear valve. <br /> 11. Route the wiring into the junction box via the supplied cord grip assembly. Connect the wires from the Vapor <br /> Flow Meter to the field wiring from the console and cap with wire nuts (see Figure 2) -OR- connect the wires <br /> to the TLS RF transmitter (W2). <br /> 12. After all other ISD Vapor Flow Meters and the ISD Pressure Sensor are installed, pressurize the tank ullage <br /> space and vapor piping to at least 2 inches WC and test for leaks using leak detection solution. <br /> ID-B <br /> CARE Approved IDM 10 -Veeder Root ISD Vapor Flow Meter-Executive Order VR-202 <br />