Wheelock MT4-12-LS Anleitung zur Fehlerbehebung PDF herunterladen (Seite 17)

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Section 5. BASIC HARD-WIRED ZONES 1-5

This section provides the following information:

• General information about hardwired zones

• Installing 2-wire smoke detectors

• Installing 4-wire smoke/combustion detectors

• Programming hardwired zones

• Checkout procedure for hardwired zones

General Information about Hardwired Zones

Provides 5 Style B supervised hardwired zones having the following

characteristics:

• EOLR supervision supporting N.O./N.C. contacts from a listed fire alarm

control panel or N.O./N.C. sensors, including:

– fire alarm sensors (N.O. only)

– 24-hr. alarm sensors

– fire sprinkler supervisory sensors

• 300 – 500ms response time

• Individually assignable to bell output and/or aux. relay

• Supports up to 16 2-wire smoke detectors on Zone 5

• Supports 4-wire smoke detectors on any zone (power to these should be

supplied from the control's aux. relay power output; see "Installing 4-Wire

Smoke Detectors" later in this section).

• Tolerance of 300-ohms on Zones 1-4, 100-ohms on Zone 5 (excluding EOLR)

Wiring Devices To Zones 1-5

1. When used as a slave DACT for a listed FACP, wire the FACP's alarm,

supervisory and trouble contacts to the 5110XM's hardwired zones

(terminals 9-16). Fire alarm initiating devices such as smoke detectors

should be wired to the FACP and not the 5110Xm. When used as a stand

alone control, wire alarm initiating devices to the 5110Xm's hardwired

zones. See the summary of connections diagram.

2. Connect closed circuit devices in series in the high (+) side the loop. The

2,000 ohm EOL resistor must be connected in series with the devices,

following the last device. See the Summary of Connections diagram.

3. Connect open circuit devices in parallel across the loop. The 2,000 ohm EOL

resistor must be connected across the loop wires at the last device.

If the EOLR is not at the end of the loop, the zone will not be properly

supervised, and the system may not respond to an open circuit on the zone.

Wiring 4-Wire Smoke/Combustion Detectors on Zones 1-5

The system will support as many 4-wire detectors as can be powered from

Auxiliary Relay Power on the control. Refer to the detector’s instructions for

complete details regarding its proper installation and operation.

1. Connect 12 volt power for the detectors from Auxiliary Relay Power

terminals 7 (+) and 18 (-). Be sure to program the Aux Power Relay for the

smoke detector reset function in program field *34. Observe proper polarity

when connecting detectors.

2. Connect detectors (including heat detectors, if used) across zone terminals.

All detectors must be wired in parallel with the 2,000 ohm resistor wired in

parallel at the last device in the loop.

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