System Sensor WFD Explosion Proof - Manual (Page 4)

D770-24-00 4 I56-1452-005R
© 2007 System Sensor
Three-Year LimiTed WarranTY
System Sensor warrants its enclosed waterflow detector to be free from defects in materi-
als and workmanship under normal use and service for a period of three years from date
of manufacture. System Sensor makes no other express warranty for this waterflow detec-
tor. No agent, representative, dealer, or employee of the Company has the authority to
increase or alter the obligations or limitations of this Warranty. The Company’s obligation
of this Warranty shall be limited to the repair or replacement of any part of the waterflow
detector which is found to be defective in materials or workmanship under normal use
and service during the three year period commencing with the date of manufacture.
After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return
Authorization number, send defective units postage prepaid to: System Sensor, Repair Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please include a
note describing the malfunction and suspected cause of failure. The Company shall not
be obligated to repair or replace units which are found to be defective because of damage,
unreasonable use, modifications, or alterations occurring after the date of manufacture.
In no case shall the Company be liable for any consequential or incidental damages for
breach of this or any other Warranty, expressed or implied whatsoever, even if the loss
or damage is caused by the Company’s negligence or fault. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation
or exclusion may not apply to you. This Warranty gives you specific legal rights, and you
may also have other rights which vary from state to state.
1. Waterflow detectors may not work or operate properly if sprinkler piping be-
ing monitored is plugged with pipe scale, mud, stones or other foreign material.
Sprinkler systems should be checked regularly for such blocking material, following
the instructions in Chapter 5 of NFPA Standard 13A.
2. Alarms generated by the activation of waterflow detectors may not be received by a
central station if telephone or other communication lines to the detector are out of
service, disabled, or open.
3. Vane-type waterflow detectors have a normal service life of 10-15 years. Hard water
systems, however, may substantially reduce waterflow detector service life.
WARninG
The LimiTaTions of WaTerfLoW aLarm devices
4. Waterflow detectors are not a substitute for insurance. Building owners should al-
ways insure property and lives being protected by sprinkler systems.
5. If valves controlling the water supply to a sprinkler system are closed, vane-type
waterflow detectors will not work. All valves controlling a sprinkler water supply
should be sealed or locked in the normally open position. The normally open posi-
tion should be monitored by a sprinkler supervisory switch.
6. Unless all six cover screws are installed and tightened to 40 in. lbs. min., the hazard-
ous location enclosure ratings will be voided.
Please refer to insert for the Limitations of Fire Alarm Systems