Chapter 2: Smoke control system hardware
VM-1 Smoke Management Application Guide 39
• Set the Timer option on the GSA-IO module for the
amount of time required for the damper actuator to
open or close, whichever is greater, but not more
than 75 seconds.
• At startup, activate GSA-IO module (item 4).
Figure 24: Typical damper control and monitor circuit
24VDC-
24VDC+
HVAC SYSTEM
CONTROLS
SLC_IN+
SLC_IN-
12
3
4
7
8
CT1
12
3
4
6 5
7
8
IO
12
3
4
6 5
7
8
IO
SLC_OUT+
SLC_OUT-
+
K2
+
K1
47K EOLR
L
N
L
N
E
CLOSED
OPEN
47K EOLR
47K EOLR
(1)
(2) (3) (4)