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LJ <br />Testing the Installation Adjusting the Pressurstat Line Relief Pressure <br />Adjusting the Pressurstat Line Relief Pressure <br />Note: Pressurstat line relief pressure is the line pressure after the pump stops. <br />1. All. pumps are factory set to a line relief pressure of 23-28 psi (160-195 kPa), <br />2. Remove the protective cover (see Figure 20). <br />3. Adjust the relief pressure to the desired level. Turning the adjusting screw clockwise will increase the line relief <br />pressure. With the adjusting screw fully down the line relief pressure should be from 40 to 45 psi. With the <br />adjusting screw all the way up the pressure should be from 0 to 3 psi. <br />4. The line relief pressure can be verified in three locations: <br />a. The pressure can be observed from the control unit of the electronic line leak detector. <br />b. The pressure can be observed by attaching a gauge to the impact valve. <br />c. The pressure can be observed by attaching a gauge to the line test port. <br />5, After setting the desired line relief pressure replace the protective cap. DO NOT USE PIPE SEALANT. <br />Lubricate the o -ring with petroleum jelly. Tighten to just snug after the protective cover has fully bottomed out. <br />e <br />I <br />0 <br />1 <br />