46
NFS-320/E/C Installation Manual —
P/N 52745:M2 7/1/14
Applications
Releasing Applications
)
Figure 4.11 Release Circuits (Mechanical Disconnect Switch)
4.7.5 Connecting a Releasing Device to the FCM-1 Module
The module can control 1 A of current. Make sure to keep total system current within the limits of
the power supply. You can power the module from the power supply of the Control Panel or any
UL/ULC listed 24 VDC regulated power-limited power supply for Fire Protective Signaling. For
more information, refer to the
Device Compatibility Document
.
Circuit Requirements
When connecting a releasing device to the FCM-1 module, note the
following:
1. Refer to the Releasing Applications appendix in the
NFS-320/E/C Programming Manual
for
configuration details (such as setting the Soak Timer).
2. For applications using power-limited circuits:
a) Use an in-line supervisory device (P/N REL-47K) with the FCM-1 module. Connect the in-
line supervisory device as shown in Figure 4.12.
b) Program the releasing circuit for Type Code REL CKT ULC.
c) Circuits are supervised against opens and shorts.
3. For applications not requiring power-limited circuits:
a) In-line supervisory devices (P/N REL-47K) are not required; however, the releasing device
circuit is not supervised against shorts.
b) In non-power-limited applications, program the releasing circuit for Type Code
RELEASE CKT.
GasDiscon
n
ec
t.wm
f
–
+
–
Compatible UL-listed
24 VDC releasing device
REL-47K
(Use with Type Code
Rel Ckt ULC,
or see Circuit
Requirement 3.)
Brown
Red
Non-resettable
24 VDC Power
Power Supervision
Relay (EOLR-1)
Relco
n
n-fcmtp
H
.wmf
+ –
FCM-1
–
+
SLC from FACP
Note: See text for circuit requirements.
N.C. Supervision
Relay Contact
Part of EOLR-1
*If the SLC device does
not match the one in this
figure, refer to the SLC
manual appendix, which
contains wiring conversion
charts for type V and type
H modules.
Figure 4.12 Typical Connection of a 24 VDC Releasing Device to the FCM-1 Module
