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VS <br /> OPOTTER VANE TYPE WATERFLOW <br /> The Symbol of Protection ALARM SWITCH WITH RETARD <br /> Maintenance <br /> Inspect detectors monthly. if leaks are found, replace the detector. The VSR waterflow sxvitch should provide years of trouble-free service. <br /> The retard and switch assembly are easily field replaceable.In the unlikely event that either component does not perform properly,please order <br /> replacement retard switch assembly stock#1029030(see Fig.6).There is no maintenance required,only periodic testing and inspection. <br /> Retard/Switch Assembly Replacement(See Fig.G) <br /> Tile Retard/Switch Assembly is field-replaceable without draining the system or removing the waterflow switch f-o€u the <br /> pipe <br /> 1. Make sure the fire alarm zone or circuit connected to the waterflow switch is bypassed or otherwise taken out of service. <br /> 2. Disconnect the power source for local bell(if applicable). <br /> 3. Identify and remove all wires from the waterflow switch. <br /> 4. Remove the(2)mounting screws holding retard/switch assembly to the base.Do not remove the(2)retard housing screws. <br /> 5. Remove the retard assembly by lifting it straight up over the tripslem. <br /> 0. Install the new retard assembly.Make sure the locating pins on the retard/switch assembly fit into the locating pin bosses on the base. <br /> 7. Re-install the(2)original mounting screws. <br /> 8. Reconnect all wires.Perform a flow test and place the system back in service. <br /> Fig.6 REMOVE(2)ORIGINAL MOUNTING <br /> SCREWS HOLDING RETARDISWITCH <br /> ASSEMBLY TO BASE <br /> BREAKOUTTHIN SECTIONOFCOVER <br /> IIJt WHEN WIRING BOTH SWITCHES <br /> FROM ONE CONDUIT ENTRANCE. (2)ORIGINAI.MOUNTING <br /> SCREWS <br /> RETARDISwITCH ASSEMBLY / <br /> Li <br /> I (2)LOCATING PINS i <br /> 0 <br /> (2)LOCATING PINS` <br /> DO NOT REMOVE I BOSSES IN BASE <br /> (2)R€iTARD 11OUS€N6 I I <br /> SCREWS j <br /> P j <br /> 3 <br /> PASL- <br /> P <br /> O <br /> O O <br /> DWG#1146-10 <br /> Removal of Waterllow Switch <br /> • To prevent accidental water damage,all control valves should be shut tight and Elie system completely drained before wate►ttow detectors are <br /> removed or replaced. <br /> • 'Turn off electrical power to the detector,then disconnect wiring. <br /> • Loosen nuts and remove U-bolts. <br /> • Gently lilt the saddle tar enough to get your fingers under it. With,your fingers,roll the vane so it will fit through the hole while continuing <br /> to lift the wmerflow detector saddle. <br /> • Lit)detector clear of pipe. <br /> PRINTED IN USA NIPG.95401146-REV L PA613 4 OF 4 <br /> 3i(19 <br />