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SCS Series Manual —
P/N 15712:L 7/18/16
121
Dedicated Smoke Control System Wiring Diagrams
Ratings and Wiring Diagrams
Figure 5.12 EP Damper Control, Dedicated System - FSCS Switch Group Type 2
Figure 5.12 depicts an EP damper in a dedicated system with the capability of
CLOSED
control and verification of the
OPEN
state, switch
group type 2. In the above configuration, the CON
OFF⁄CL
CM is activated. The CON
OFF⁄CL
CM controls a normally open contactor for the
pressure switch power. When the CON
OFF⁄CL
CM is activated, the normally open contactor is closed, thus supplying power to close the
damper. When the damper completely closes, the damper closed limit switch is
CLOSED
, indicating that the damper is in the
CLOSED
position,
and the damper open limit switch is
OPEN
. The VER
ON⁄OP
MM monitors the
CLOSED
position of the damper open limit switch. In this case the
VER
ON⁄OP
MM is deactivated because the damper is
CLOSED
.
Airflow
PRESSURE
SWITCH
SMOKE
DAMPER
CLOSED
1a listed
contactor
Power Source
Listed
24 VDC
Power Source
SLC Loop
FCM-1
CON
OFF/CL
CM
(activated)
DE
P-
dF2
A
-fs-2
.wm
f
Power
Return
VER
ON⁄OP
MM
(deactivated)
FMM-1
N/O
COM
Limit Switch
for open
position
ELR-47K
(use 3.9K listed ELR with FZM-1)
Pneumatic
Tubing
*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.