4010ES Automatic Extinguishing, Deluge and Preaction Sprinkler System Releasing Control
Page 2 AC4010-0005 Rev. 10 5/2017
ULC-S559 - Central Station Fire Alarm System Units (DAYRC)
ULC/ORD-C1076 - Proprietary Burglar Alarm System Units (APOUC)
ULC/ORD-C100 - Smoke Control System Equipment, UUKLC
Automatic Extinguishing Release Systems
These systems automatically activate electrically controlled actuators
for the release of a fire extinguishing agent (such as dry chemical, water
spray, foam, CO2, or clean agent) in response to fire detection device
inputs as determined by programming of the host fire alarm control unit.
Automatic Extinguishing Release Systems are required to have a
minimum of 24 hours of standby power. Initiating devices must be
Listed/Approved for the application, and may be wired either Class A
or B. Control actuators must be electrically compatible with the control
unit circuits and power supplies, and are wired Class B to provide coil
supervision.
Deluge or Preaction Sprinkler Systems
These systems automatically activate water control actuators in
response to fire detection device inputs.
Deluge Sprinkler Systems employ open sprinkler heads and provide
water flow when the fire detection system activates a common
automatic water control actuator. They are used to deliver water
simultaneously through all of the system sprinkler heads. This type of
system is applicable where the immediate application of large quantities
of water over large areas is the proper fire response.
Preaction Sprinkler Systems are similar to deluge systems except
that normally closed sprinkler heads are used and supervisory air
pressure is maintained in the pipe. Operation requires both an activated
sprinkler head and an activated fire alarm initiating device with specific
programming determined at the host fire alarm control unit.
Releasing System Requirements
Releasing actuators are controlled from a Suppression Release
Peripheral (A4090-9005 or A4090-9006). Connections are 2-wire, Class
B releasing circuits with only one 24 VDC actuator per circuit. Where
applicable, two, 12 VDC actuators in series, or one 12 VDC actuator with
manufacturer supplied resistor may be used.
1. Coil Supervision Module A2081-9046 must be wired electrically
before the actuator and located in the actuator wiring junction box.
The connected RAC provides continuity supervision of the actuator
coil and wiring and provides short circuit supervision to the coil
supervision module.
2. Cross-zoning or other alarm initiation logic per system requirements,
is to be implemented by programming at the fire alarm control unit.
3. UL Listed Automatic Extinguishing Releasing operation requires that:
battery standby must be a minimum of 24 hours with 5 minutes of
alarm and that listed actuators are used.
4. FM Approved Automatic Extinguishing Release requires secondary
standby to be a minimum of 24 hours with 5 minutes of alarm.
Actuators must be electrically compatible.
5. FM Approved Deluge and Preaction Sprinkler operation requires
that: initiating device circuits be Class A and wired to Listed/
Approved devices; standby power capacity must be a minimum of
90 hours with 10 minutes of alarm; and that compatible Automatic
Water Control Valves must be used.
6. Maintenance Switches, one per RAC, are required per NFPA 72, the
National Fire Alarm and Signaling Code to allow the system to be
tested or serviced without actuating the fire suppression systems.
Their use may not be allowed in some jurisdictions, always confirm
local requirements. When used, Autocall Maintenance Switches are
required to ensure that operation initiates a supervisory condition.
7. Abort Switches are available when abort operation is required. When
used, connect to an addressable Supervised IAM model A4090-9001
or similar addressable adapter module. The Autocall abort switch
and the IAM mount in a single gang box, 2-1/2" minimum depth.
8. Addressable Manual Releasing Stations are used to initiate
activation of the releasing actuators with the appropriate time delay
implemented by the fire alarm control unit.
9. Notification Requirements. Each hazard area typically requires
general audible and visible fire alarm notification and additional
dedicated NACs for area releasing status notification.
10. The IDNet Suppression Release Peripheral (SRP) required for release
control requires two inputs; IDNet and a dedicated NAC input. For
additional SRP reference refer to installation instructions 579-385AC.
Additional Releasing Systems Reference
For additional information, refer to Factory Mutual Research Corporation
(FMRC) "FMRC Approval Guide," FM Approval standard "Automatic
Releases for Preaction and Deluge Sprinkler Systems."
Please note that proper operation of releasing control systems requires
that the system design, installation, and maintenance be performed
correctly and in accordance with all applicable local and national codes,
and equipment manufacturer's instructions. No liability for total system
operation is assumed or implied.
