Light Engineered Displays Section 16500 Specs - Manual (Page 2)

SECTION
16500
WATER LEAK DETECTION
ALARM SYSTEMS
2.2 Control Panel
A. The Control Panel shall operate from 120 VAC, include battery backup. and provide supervision for the
water sensing cable. The control panel shall provide, at a minimum, the following:
1. Green Power On LED.
2. Red Alarm LED, per zone.
3. Yellow Trouble LED, per zone.
4. Common Alarm and Common Trouble relays to remote tie-in.
5. Audible device and Acknowledge switch.
6. Adjustable sensitivity to compensate for ambient room environment.
7. Supervised detection zones utilizing low current, low voltage, pulsed AC to maximize cable longevity.
2.3 Water Detection Cable
A. Water Detection Cable shall consist of two parallel conductors with a supervised end of line resistor
circuit. The conductors are individually insulated with a protective outer covering of braided rayon.
B. The Cable shall be decay and corrosion resistant and shall not require replacement after being wet.
C. The Cable shall be designed to cut to fit installation using ordinary terminal blocks for connections.
Special connectors are not acceptable.
Part 3: Operation
Part 2: Products (continued)
3.1 Operation
A. Detection of water shall cause the following to occur:
1. Activate the alarm sonalert in the Water Detection Panel.
2. Visual indication of water detection, by zone, on the integral color coded annunciator map.
3. Operate alarm relay for remote tie-in.
B. A break in the water sensing cable, either conductor, any zone, shall cause the following:
1. Activate the trouble sonalert in the water detection panel.
2. Visual indication of trouble condition, by the zone, on the annunciator display.
3. Operate trouble relay for remote tie-in.
C. Loss of normal input power shall cause the following:
1. Power On indicator will extinguish.
2. Unit will continue to operate, with no loss of functions, for up to 24 hours.
3. Unit will indicate trouble if batteries become weak before normal power is restored.