Installation
P/N 06-237058-001 2-37 February 2012
2-8.7.2 R-NAC CIRCUITS USED AS RELEASING CIRCUITS
Each R-NAC circuit can be configured as a releasing circuit to activate either one control head or one
pre-action-sprinkler or deluge-sprinkler valve.
Note: For enclosures which include one or two power supply units, total current output of the
ARIES NETLink must not exceed 5.4 A per power supply unit. For enclosures which include
three or more power supply units, total current output must not exceed the parameters listed
in Appendix A, Section A-5, Calculating Maximum Load For Multiple Power Supply Units
In One Enclosure.
2-8.7.2.1 R-NAC Circuits for Single Control Head or Solenoid Valve
Figure 2-31 shows a releasing circuit wired for single-control-head or single-solenoid-valve actuation.
Both R-NAC circuits are supervised and power limited when configured as releasing circuits and
when an in-line releasing device (P/N 06-220023-001 or P/N 76-800000-004) is wired in series with
the solenoid valve. The compatible control heads and solenoid valves are listed in Appendix C, List
of Agency Listed Compatible Devices.
Note: Route non-power-limited wiring at least 1/4 inch away from all power-limited wiring. Place
non-power-limited wiring inside a conduit.
WARNING
Ensure that all releasing devices are physically disconnected from the releasing circuits
before performing any system testing or maintenance.
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