System Sensor WFD European Models Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS Vane type Waterflow Detector Ratings Flow Rate Pressure Rating maximum Temperature Ranges Pipe Weight Rating Read Carefully And Save A 125 250 VAC 2.5 A 24 VDC to Table 1 bar 250 psi 1725 KPa 16 bar VdS to 68 32 to 155 Water Pipe Refer to Table 1 3.2 Kilograms 3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 Number 0786 CPD 40151 instruction manual contains important information about the installation operation of waterflow detectors Purchasers who install waterflow detec for use by others must leave this manual or a copy of it with the 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 DELUGE OR PRE ACTION SYSTEMS The sudden inrush of water such systems may break the vane or damage the mechanism not use in potentially explosive atmospheres Do not leave unused exposed OF OPERATION type waterflow detectors mount to water filled pipes in sprinkler sys Waterflow in the pipe deflects a vane Deflection of the vane produces a output usually after a specified delay All WFDEs have a pneumati controlled mechanical delay mechanism Delays are noncumulative they if the flow of water stops or drops below minimum triggering flow rate the entire delay has elapsed All detectors will activate on a sustained of water greater than the maximum specified in Table 1 but will not acti if the flow rate is less than the minimum specified in Table 1 System Sensor installation manual covers the following waterflow detec for sprinkler fire alarm applications 1 Rate Ref Size in 2 2,5 3 4 6 8 PIPE COMPATIBILITY O D NOT USE THE ABOVE MODELS ON COPPER PIPE The clamping forces of mounting bolts may collapse the pipe sufficiently to prevent the detector functioning properly NOT INSTALL STEEL OR IRON PIPE SECTIONS IN COPPER PIPING FOR A WATERFLOW DETECTOR Incompatibility between the dis metals will cause bimetallic corrosion GUIDELINES installing any waterflow alarm device be thoroughly familiar with national of practice and the requirements of the authority having jurisdiction to follow these directions may result in failure of the device to report waterflow condition System Sensor is not responsible for devices that have improperly 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 the unit 1.8 2.1 meters above the floor to protect from damage On horizontal runs position the detector on top or on the side of the Do not mount it upside down because condensation may collect in housing and impair the operation of the detector For vertical flow ap mount detector on pipe where upflow conditions exist Failure do so may prevent unit from operating properly Mount detector at least 15 cm from a fitting which changes the direction the water flow or no closer than 61 cm from a valve or drain BE SURE DIRECTION OF FLOW ARROW MATCHES ACTUAL DIREC OF FLOW IN THE PIPE INSTRUCTIONS Drain the pipe Cut a hole in the desired location Center the hole in the pipe as shown Figure 2 and be sure the hole is perpendicular to the center of the If the hole is off center the vane will bind against the inside wall of pipe Use a drill or hole saw to cut a hole of the proper diameter See 2 for hole size Before drilling use a punch or scribe to mark the site to keep the bit from slipping drilling out hole make certain that center of hole saw cut does not in pipe 2 NUMBER DIAMETER mm 1.6 mm in 1 16 in SETTING 47.5 NT M 35 FT LBS mm 1.6 mm in 1 16 in 81.3 NT M 60 FT LBS Remove burrs and sharp edges from hole Clean out scale and foreign mat from inside wall of pipe to ensure free movement of the vane Clean the of the pipe to remove dirt metal chips and cutting lubricant Seat the saddle gasket against the saddle and mount detector directly to Carefully roll the vane opposite the direction of flow and insert it the hole see Figure 5 Seat the saddle firmly against the pipe so the locating boss goes into the hole Install the U bolt around the pipe Thread both nuts onto the U bolt and tighten alternately to ensure a uniform seal See Table 2 for torque values Remove the metal cover with the tamper proof wrench provided Move actuator lever back and forth to check for binding If the vane binds the detector and correct the problem before proceeding sure the direction of flow arrow points in the correct direction otherwise a condition will go unreported See Figure 5 1 MOUNTING DIMENSIONS CM CM WIDTH PIPE DIAMETER 7.6 CM 3 2 LOCATION OF MOUNTING HOLE A ground screw is provided with all WFDE units When grounding is re clamp wire with screw in hole located between conduit entrance see Figure 6 Use proper waterproof conduit fittings where required A 22.2 mm conduit hole is provided for electrical connection An additional mm diameter knockout is provided for multiple line connections DIAMETER 13.3 CM Voltage Electrocution Hazard Do not handle live AC wiring or work on a de to which AC power is applied Doing so may result in severe injury or death utilizing switches at voltages greater than 74VDC or to provide all disconnection must be incorporated in field wiring such as a circuit breaker 3 FIELD WIRING PANEL OR EOL VAC RATINGS AMPS AMPS VDC COMMON AND B NO WILL CLOSE VANE IS DEFLECTED I E WATER IS FLOWING DUAL PERMIT TO BE COMBINED A SINGLE DETECTOR OF IN WATERFLOW WIRE AS FOR OF DO ALLOW WIRE TO EXTEND SWITCH DO NOT WIRES DELAY ADJUSTMENT pneumatic delay is preset at dial setting 25 at the factory To adjust the turn the adjustment dial on the delay mechanism Turn clockwise to the delay counterclockwise to decrease the delay Delay can be ad over a range from 0 to 30 seconds maximum see Figure 4 Set the delay to the minimum required to prevent false alarms due to surges extended service parts of the detector may become worn reducing the time and causing false alarms If this happens increase the delay 4 DELAY ADJUSTMENT DIAL BURRS FROM EDGE OF HOLE CLEAN OUT SCALE FOREIGN MATTER FROM INSIDE WALL OF PIPE TESTING Fill the sprinkler system and check for leaks around the WFDE If it first check for proper torque on U bolt nuts If leak persists drain system and remove the detector see removal instructions under Check for dirt or foreign objects under the gasket Check pipe surface is not dented Reinstall the detector and check again for Do not proceed until all leaks have been stopped Connect an ohmmeter or continuity tester across COM and B NO termi switch contacts see Figure 3 The ohmmeter should show an open no continuity Deflect the actuator lever and hold it until the pneumatic delay shaft the switch buttons The ohmmeter or continuity tester should a short circuit after the delay has elapsed If there is no delay