SS-200-035 4 I56-4175-002
©2015 System Sensor
System Sensor warrants its enclosed waterflow detector to be free from defects in
materials 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 detector. 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 workman-
ship 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
1. Waterflow detectors may not work or operate properly if sprinkler piping being moni-
tored is plugged with pipe scale, mud, stones or other foreign material. Sprinkler sys-
tems 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.
WARNING
THE LIMITATIONS OF WATERFLOW ALARM DEVICES
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.
4. Waterflow detectors are not a substitute for insurance. Building owners should always
insure property and lives being protected by sprinkler systems.
5. If valves controlling the water supply to a sprinkler system are closed, vane-type wa-
terflow detectors will not work. All valves controlling a sprinkler water supply should
be sealed or locked in the normally open position. The normally open position should
be monitored by a sprinkler supervisory switch.
THREE-YEAR LIMITED WARRANTY
to: System Sensor, Returns Department, RA #__________, 6581 Kitimat Road, Unit 6,
Mississauga, Ontario L5N-3T5. 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.
Please refer to insert for the Limitations of Fire Alarm Systems
FIGURE 6. DIRECTIONAL COVER
NOTCHED COVER INDICATES FLOW DIRECTION AT A
DISTANCE FROM MULTIPLE VIEWING ANGLES
W0382-00
FIGURE 7. WFDNA WIRING:
CONTACT RATINGS
125/250 VAC
10 AMPS
24 VDC
2.5 AMPS
ULC-LISTED
COMPATIBLE
CONTROL PANEL
POWER
24VDC
OR
120VAC
INITIATING
LOOP
SSM24-X
SSV120-X
NOTE: COMMON AND B-NO
CONNECTIONS WILL CLOSE
WHEN VANE IS DEFLECTED, I.E.,
WHEN WATER IS FLOWING. DUAL
SWITCHES PERMIT
APPLICATIONS TO BE COMBINED
ON A SINGLE DETECTOR.
SCHEMATIC OF
INDIVIDUAL
SWITCH IN
"NO WATERFLOW"
CONDITION
BREAK WIRE AS
SHOWN FOR
SUPERVISION OF
CONNECTION. DO
NOT ALLOW
STRIPPED WIRE
LEADS TO EXTEND
BEYOND SWITCH
HOUSING. DO NOT
LOOP WIRES.
A-NC
B-NO
COM
SUGGESTED EOL
RESISTOR
+
-
+
-
W0393-00
