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2 double interlock zone releasing, 2 double interlock zone releasing -14 – SilentKnight 5700 User Manual

Page 146

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System Operation

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8-14

Conditions required for an General Alarm and Release Output Activation

If two or more addressable detectors, or a manual release switch activate, the “Alarm” and the “Release” outputs
will activate. (Also refer to Table 8-3.)

Note: Refer to Table 8-2 for approved releasing solenoids and ratings.

8.6.2

Double Interlock Zone Releasing

A Double Interlock Zone uses a minimum of two Addressable detectors, a designated manual release switch, and
an interlock switch input. An interlock switch is typically a dry-contact pressure switch and will be referred to as
an interlock/pressure switch in this document.

Conditions Required for a Pre-Alert Output Activation

If any single addressable detector is activated, the “Pre-Alert” output will activate. This alerts the user that the
initial stages required for a release condition are present. (Also refer to Table 8-3.)

Conditions Required for a General Alarm Output Activation

If two addressable detectors, a manual release switch is activated, or an interlock switch is active, the “Pre-
Alert”, and “General Alarm” outputs will activate.

Table 8-3: Input Conditions and Output Results

Inputs

Output Results

1st Addressable Detector

X

X

X

X

2nd Addressable Detector

X

X

X

X

Manual Release Station

X

X

X

X

Normal

Pre-

Alert

Pre-

Alert

Release and General Alarm

Release and General Alarm

Release and General Alarm

Release and General Alarm

Release and General Alarm

Important!

Detectors must be installed at 0.7 times the linear spacing as described in NFPA 72.

Important!

Only addressable detectors can be used. No conventional detectors can be used.

Each Single Interlock Zone input requires at least one manual release switch.

Each Double Interlock Zone input requires at least one Interlock/pressure switch