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Husky PV Vent Instal I ati on/Maintenance Instructions <br />0 <br />PRESSURE/VACUUM VENT MODEL 1 AND 4885 <br />INSTALLATION AND MAINTENANCE <br />INSTRUCTIONS <br />The PN Vent is designed to fit on top of a 2" vent pipe. Remove the P/V Vent from <br />the carton and visually inspect for any shipping damage. <br />DRAT <br />Model 4620 Slip On P/V Vent <br />The Model 4620 can be installed on <br />either a threaded or not threaded 2" <br />pipe. Hold the P/V Vent upside down <br />SCREWS and place the seal into the vent <br />opening. Using an Allen wrench, back <br />the 4 set screws out so that the P/V <br />Vent will slip over the vent pipe. <br />(set screws & seal for Model 4620 only) <br />Place the PN Vent on top of the vent pipe and push or pull down on the P/V Vent to <br />slightly compress the seal. Tighten the 4 set screws firmly. Periodic maintenance is <br />recommended (see below). <br />Apply pipe sealant to the threads on the 2" vent stack. Screw the P/V Vent onto the <br />vent stack and tighten snugly with a suitable wrench. DO NOT OVER -TIGHTEN. <br />Periodic maintenance is recommended (see below). <br />MAINTENANCE <br />To clean or inspect the P/V Vent for foreign <br />objects without removing the P/V Vent from the <br />vent pipe: <br />Remove the screws that holds the top <br />cover on. <br />Remove any debris that might be sitting <br />inside the lower cover. <br />Check the drain holes in the lower cover <br />for blockage: <br />The two (2) screens should not be <br />removed. <br />Reinstall the top cover and retaining <br />screws. <br />6. Tighten the screws firmly. <br />NOTE: PO NOT ALTER OR COVER T`:1, PiV VENT <br />Page 1 of 1 <br />h itp : //vr��;v. husky , yem/9041. � stir, 7,127/01 <br />