FIGURE 3. DELAY ADJUSTMENT DIAL
NOTE: NUMBER ON DIAL IS APPROXIMATE TIME DELAY IN SECONDS.
DELAY
ADJUSTMENT
DIAL
W0386-01
OPERATIONAL TESTING
Always notify the central station monitoring waterflow alarms before repairing,
maintaining or testing waterflow alarm devices.
1. Replace the cover and tighten the tamper-proof screws with the tamper-proof
wrench. Store the wrench in a secure place.
2. Open the inspector’s test valve and time how long it takes for the detector to
indicate a flow condition. The detector should remain activated until the inspec-
tor’s test valve is closed. Air pockets in the sprinkler system may increase the
apparent time delay.
MAINTENANCE
To prevent accidental water damage, control valves should be shut tight and the system
completely drained before waterflow detectors are removed or replaced.
Inspect detectors in accordance with applicable codes and standards and/or the
Authority Having Jurisdiction for leaks and replace if a leak occurs. Test detectors
at least quarterly as described under Operational Testing to ensure proper operation.
Test more often as required by applicable codes or standards.
Under normal conditions Safe Signal waterflow detectors should provide years of
trouble-free service. If any part of the detector does not perform properly, replace
the entire detector. Installation methods other than those listed in this installation
manual may prevent the device from reporting the flow of water in the event the as-
sociated fire sprinkler system is activated by a fire. Safe Signal is not responsible for
devices that have been improperly installed, tested, or maintained.
Proceed as follows to remove a detector:
1. Drain the pipe.
2. Turn off electrical power to the detector, and then disconnect wiring.
3. Loosen nuts and remove U-bolts.
4. Gently lift the saddle far enough to get your fingers under it. With your fingers,
roll the vane so it will fit through the hole while continuing to lift the waterflow
detector saddle.
5. Lift detector clear of pipe.
CAUTION
If a vane breaks off in a pipe, find and remove it. If it is not removed, the vane may
restrict the proper flow of water to all or part of the fire sprinkler system.
FIGURE 4. ASSEMBLY DIAGRAM
WATERFL
OW
U-BOLT
PIPE
SADDLE GASKET
REFER TO
TABLE 1
U-BOLT
NUT
ELECTRICAL
CONDUIT
ENTRANCE
COVER
TAMPER PROOF
WRENCH
(P/N WFDW)
ROLL PADDLE
OPPOSITE OF
FLOW ARROW
WHILE INSERTING
PIPE SADDLE
MOUNTING PLATE
TIMER
(REPLACEMENT
P/N FS-RT)
COVER TAMPER
SWITCH
(OPTIONAL P/N CTS)
W0392-01
FIGURE 5. GROUND SCREW LOCATION
GROUND
GROUND
SCREW
SCREW
W0383-01
3
I56-4051-F
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