Edwards SIGA-REL — Signature Series analog addressable releasing module for deluge, preaction and automatic fire extinguishing systems.
The SIGA-REL communicates directly with the Signature loop controller and does the job of a standalone releasing panel, so no separate releasing panel is needed. It can release CO2, Halon or foam as well as control sprinkler valves, and it works with conventional manual release, abort and service disconnect devices. Built-in timers set the abort, manual and automatic delays.
Specifications
| On-board circuits |
Two Class B release circuits, two Class B pre-release NACs, one manual release input (latching), one abort input (non-latching), one Form C first alarm relay |
| Power riser |
24 VDC power limited; 25 mA max supervisory, 4 A max |
| Signature data line |
5.2 to 19.95 VDC, 1000 µA supervisory and alarm |
| First alarm relay |
Form C, 3 A at 24 VDC (0.6 power factor) |
| Delays |
Manual 0 to 30 s, automatic 10 to 50 s |
| Temperature |
32°F to 120°F (0°C to 49°C), 0 to 93% non-condensing |
| Wiring |
#18 to #12 AWG |
Features
- Four field-configurable abort modes
- Programmed with the panel SDU Rules Editor
- Automatic device mapping on the Signature loop
- A manual release sequence cannot be aborted; an active manual release station overrides automatic operation
Documents
FAQ
Is a separate releasing panel needed?
No. The SIGA-REL provides releasing control on the Signature loop of the existing control panel.
How many release circuits does it have?
Two supervised Class B release circuits, plus two Class B pre-release NACs, a manual release input, an abort input and a Form C first alarm relay.
Can a manual release be aborted?
No. Edwards notes that a manual release sequence cannot be aborted.
What delay times are available?
A manual delay of 0 to 30 seconds and an automatic delay of 10 to 50 seconds, set in the field.
