System Sensor AFD Models Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS Accuflow Waterflow Detector Solid State Time Retard Ratings Threshold Bandwidth Rate Pressure Rating Installed Temperature Range Pipe Weight Rating Range Requirements Patent Number A 125 VAC 2 A 30VDC to 10 gpm PSI Max 2 8 x 3.0 W x 6.7 D to 120 0 to 49 Accuflow models listed below to 7 lb according to size Type 4 V DC 108 VAC at 12 and 24 V DC or at 120 VAC 3,845,259 Read Carefully And Save instruction manual contains important information about the instal and operation of waterflow detectors Purchasers who install water detectors for use by others must leave this manual or a copy of it with user all instructions carefully before beginning Follow only those instruc that apply to the model you are installing vane type waterflow detectors in wet pipe systems only Do NOT use in dry pipe deluge or preaction systems The sudden inrush of in such systems may break the vane or damage the mechanism not use in potentially explosive atmospheres Do not allow unused to remain exposed Of Operation waterflow detectors mount to water filled pipes in sprinkler sys Waterflow in the pipe deflects a vane which produces a switched after a specified delay All waterflow detectors have a con delay mechanism Delays do NOT accumulate they reset if the of water stops before the entire delay has elapsed All switches actu when the water flow rate is 10 gallons per minute or greater but will actuate if the flow rate is less than 4 gallons per minute This System installation manual covers the following waterflow detectors for alarm applications Models Schedules through 40 through 40 through 40 through 40 through 40 through 40 through 40 through 40 Diameter Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 Compatibility AFD waterflow indicators may receive power and operate on a two initiating zone of a fire alarm control panel When determining com of these devices the standby operating voltage of the control must be between 8.5 and 35 volts In the standby mode the AFD a maximum current of 0.3 mA In alarm the AFD acts as a short the initiating zone similar to a manual fire box For two wire fire alarm control panels not more than 5 waterflow may be connected to a single initiating zone The maximum time of the waterflow indicator plus the initiating zone shall exceed 90 seconds two wire addressable control panels the number of waterflow connected to the panel signaling line circuit shall be lim only by the circuit current capacity Guidelines installing any waterflow alarm device be thoroughly familiar with 72 13 25 applicable NFPA standards local codes and the requirements of the having jurisdiction Fire Alarm Code of Sprinkler Systems Testing and Maintenance of Sprinkler Systems methods other than those listed in this installation may prevent the device from reporting the flow of water the event the associated sprinkler system is activated by a System Sensor is not responsible for devices that have been installed tested or maintained Mount the detector where there is adequate clearance for installation removal and a clear view of it for inspections See Figure 1 for dimensions Locate detector 6 to 7 ft above the floor to protect from potential damage On horizontal runs position the detector on the top or side of the pipe not mount it upside down because condensation may collect in the and impair the operation of the detector For vertical flow mount the detector on pipe through which water flows Otherwise the unit may not operate properly Mount the detector at least 6 inches from a fitting that changes the of water flow and no less than 24 inches from a valve or Be sure the direction of flow arrow matches the direction of flow in the Instructions Drain the pipe Cut a hole at the desired location Center the hole in the pipe as in Figure 2 and be sure the hole is perpendicular to the center the pipe Before drilling use a punch or scribe to mark the drill site prevent the bit from slipping If the hole is off center the vane will against the inside wall of the pipe Use a drill or hole saw to cut hole of the proper diameter See Table 1 for hole size drilling the hole with a hole saw make certain that the center of the does not remain in the pipe NOT use any of the AFD models on copper pipe The clamping forces the mounting bolts may collapse the pipe sufficiently to prevent the from functioning properly NOT install steel or iron pipe sections in copper piping for mounting a detector Incompatibility between the dissimilar metals causes corrosion Remove burrs and sharp edges from the hole Clean and remove all and foreign matter from the inside of the pipe for one diameter each side of the hole to ensure free movement of the vane Clean outside of the pipe to remove dirt metal chips and cutting lubri Seat the gasket against the saddle and mount the detector directly to pipe Carefully roll the vane opposite the direction of flow and it through the hole Seat the saddle firmly against the pipe so the locating boss goes into the hole the U bolt tightening the nuts alternately to ensure a uniform See Table 2 for torque values Remove the metal cover with the tamper proof wrench provided the actuator lever back and forth to check for binding If the binds remove the detector and correct the cause before pro the sprinkler system and check for leaks around the waterflow detec If it leaks first check for the proper torque on the U bolt nuts If the persists drain the system and remove the detector refer to Check for dirt or foreign objects under the gasket and sure that the pipe surface is not dented Reinstall the detector and again for leaks Do not proceed until all leaks have been stopped 1 Mounting dimensions diameter 5 1 4 nut saddle vane sure the direction of flow arrow points in the right direction or else flow will go unreported See Figure 9 Voltage Electrocution Hazard Do not handle live AC wiring or work a device to which AC power is applied Doing so may result in injury or All models have two wires and two sets of terminals Wires W1 W2 designated on PCB These wires are con to a latching normally open as in No Flow relay contact They isolated from all electronics They will close and cause a short water flows and the retard time elapses They will remain short until waterflow stops Once waterflow stops these contacts will re Power Terminals T2 designated on PCB This is a two screw block The Accuflow gets its power from these terminals terminals must have voltage present from the FACP or other suit source of power before anything will work If no power is present Accuflow will not provide proper alarm signals These terminals accept power in any polarity as well as AC line power Relay Terminals T1 designated on PCB This is a THREE screw block These terminals are connected to a latching Form C In no flow conditions COM is connected to A When flow is COM will disconnect from A and connect to B This relay will in that state and reset after water stops flowing Adjust Dip Switch to desired time delay See Figure 11 For Dip Switch see Figure 9 When connected to a listed sprinkler fire alarm control panel the ini circuit must be nonsilenceable A ground screw is provided with all waterflow detectors When is required clamp wire with screw in hole located between entrance holes See Figure 10A page 4 a second conduit entry is required remove the knockout plug using flat blade screwdriver as shown on Figure 10B page 4 Strike sharply a hammer to pie