88
APPENDIX-L: RELEASING OPERATION
Configure:
• Set up a countdown time for the releasing operation to start when the releasing control
condition is satisfied.
• Set up the activation time for the NAC/Output channel:
ReleaseSync: operate simultaneously with the releasing channel.
Immediately: operate once the releasing control condition is satisfied.
• When the releasing control condition is satisfied, the countdown time starts. When the
countdown time is over, the releasing operation starts to distinguish the fire.
Manual releasing:
• When the releasing control is in pre-discharge phase, the releasing circuit is activated
immediately when the corresponding manual release is triggered.
• When the releasing control is not in the pre-discharge phase, a countdown timer of the
releasing circuit starts when the corresponding manual release is triggered. The
countdown time can be customized and the range is 10…60 s. UL allows up to 30
seconds.
• Checkbox: “Manual release overrides abort”.
Check (default)—Manual release takes effect even when abort is activated
Uncheck—Manual release doesn’t take effect when abort is activated, but it takes effect
immediately when the abort is deactivated.
• Manual release switch is not self-restoring. Users need to press the “Reset” button on
the panel to restore the manual release switch.
Abort
• Pause the countdown time or re-time 60 s.
Physical Disconnect Switch
Releasing service fire alarm systems used for fire suppression-releasing service (non-water
based) shall have the capability to disconnect releasing circuit(s).
A Listed physical disconnect switch (such as Fike model 10-2705) shall be used.
To provide a separate releasing notification, Audible Base (ABHW) needs to be installed
and programmed to sound March tone during pre-discharge, and a different tone (e.g.
continuous tone) when it discharges.
For Canadian Releasing applications the AW-3B self-restoring abort switch must be used.
It is painted blue and contains French Canadian verbiage.
For Canadian Releasing applications, the MSM-RB non-self-restoring manual release
switch must be used. It is painted yellow and contains French Canadian verbiage.
To Next Page
Loading...
Need help?
General
