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Transmission Contact Switch -Automatic telephone dialer: ❑ Typically requires only a contact switch to activate dialing function. ❑ Is plugged (or wired directly) into an electrical outlet for power source. • Dialer power source is not supplied by control panel. ❑ With power to control panel, normally closed contacts are at terminals 3 and 4. ❑ Terminals will open - providing the switching mechanism to activate dialer - when control panel goes into alarm mode. Model SBOO11C Shown r i Power Circuit Sensor Circuit (To 120 Volts AC) To Ground Contact (To Sensor Assembly) Switch Circuit Power Circuit Automatic Telephone (To 120 Volts AC) Phone Dialer Line Power Source Switch Do not place intrinsically safe sensor AWARNING wiring in the same conduit as non - intrinsically safe wiring. CAUTION: Place wiring in watertight conduit and junction boxes (to maintain leak detection capability). • Typical wiring diagram is provided for accessories requiring power such as light beacon. ❑ Contacts (see Figure B, page 30) can provide 120 volts AC. ❑ Optional warning device must be rated for 300 watts or less. D5. Alarm Bell Silence Button • Depress Bell Silence Button on control panel to silence alarm bell. ❑ The alarm bell will activate again if second alarm condition occurs. D6. Normal Operation • If 'NORMAL" light is continuously illuminated, it means liquid level is in normal range. • Inner and outer walls are leak -free if liquid level in reservoir is stable. 18 • Liquid level in reservoir will fluctuate as the temperature of incoming stored product changes. • Reservoir is designed to provide adequate capacity for normal thermal expansion and contraction. D7. Testing and Maintenance Important: Check control panel warning system at least once per year. • Depress "TEST BUTTON' switch on front of control panel to verify that each internal circuit is operational. ❑ This does not test operation of monitoring sensors. • Use troubleshooting guide (See Figure A, page 29) to diagnose faulty circuit in control panel. • Contact Owens-Corning Field Service Manager for control Panel replacement parts (see phone numbers listed on page 2). D8. Leak Detection • In the unlikely event reservoir totally drains: ❑ Control panel alarm will activate. ❑ Warning light will illuminate. ❑ Alarm bell will sound. ❑ Transmission contacts will activate any accessory alarm devices. • Alarm bell can be primarily silenced by pushing Bell Silence Button. ❑ "WARNING" light will remain on. ❑ 'NORMAL" Light is off. • See section C8 - Reservoir Leak Detection. D9. Control Panel False Alarms • Occur when panel goes into alarm mode, but reservoir liquid level is still in normal range. • Typically result from failure of an electronic component inside control panel. • To maintain the 'NORMAL" condition: ❑ All electronic components must function properly. ❑ Any electrical component failure will result in an "ALARM" condition. Important: Refer to troubleshooting guide on page 29 to identify specific problem.