Com no nc – System Sensor OSYEXP User Manual
Page 4

D770-27-00
4
I56-1429-002R
©
System Sensor 2005
1. Alarms generated by the actuation of the activating lever
may not be received by a central station if telephone or
other communication lines to the detector are out of
service, disabled, or open.
2. Supervisory switch alarm devices have a normal service
life of 10-15 years.
WARNING
The Limitations of Supervisory Switch Alarm Devices
3. Supervisory switches are not a substitute for insurance.
Building owners should always insure property and lives
being protected.
Figure 3. Supervisory switch wiring diagram:
To power source
compatible with bell
Local
Bell
COM
NO
NC
Typical Local Bell Connection
Break wire as shown for supervision of
connection. DO NOT allow stripped wire
leads to extend beyond switch housing.
DO NOT loop wires.
System Sensor warrants its enclosed pressure switch 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 pressure switch. 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 obliga-
tion of this Warranty shall be limited to the repair or replacement of any
part of the pressure switch 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, Return
Please refer to insert for the Limitations of Fire Alarm Systems
Three-Year Limited Warranty
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 neg-
ligence 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.
W0239-00
W0240-00
W0241-00
COM
NO
NC
COM
NO
NC
Sup. Switch
Sup. Switch
Typical Facp Connection
End of Line
resistor
To non-silenceable
intiating zone of
listed FACP