Honeywell NOTIFIER SCS Series Operation And Installation Manual page 177

HVAC Wiring Diagrams
Figure 5.68 depicts an EP damper in an HVAC system with the capability of verifying the
figuration, the EMS is supplying power to the pressure switch. When power is supplied, the pressure switch cuts the airflow to the damper,
closing the damper. When the damper completely closes, the damper closed limit switch is
position. The VER
CLOSED
tivated because the damper is
Management
Pneumatic
Tubing
PRESSURE
SWITCH
Power
Return
Figure 5.69 depicts an EP damper in an HVAC system with the capability of verifying the
above configuration, the EMS is supplying power to the pressure switch. When power is supplied, the pressure switch cuts the airflow to the
damper, closing the damper. When the damper completely closes, the damper closed limit switch is
switch is , indicating that the damper is in the
OPEN
limit switch and the VER
vated and the VER
ON⁄OP
SCS Series Manual — P/N 15712:L 7/18/16
MM monitors the
CLOSED
ON⁄OP
.
CLOSED
Power Source
Energy
System
Airflow
SMOKE
DAMPER
CLOSED
Figure 5.69 EP Damper Monitor - HVAC Switch Group Type 3
CLOSED
MM monitors the
CLOSED
ON⁄OP
MM is deactivated because the damper is
position of the damper open limit switch. In this case the VER
ELR-47K
(use 3.9K listed ELR with FZM-1)
Limit Switch
for open
position
N/O
COM
N/O
COM
Limit Switch
for closed
position
position. The VER
OFF⁄CL
position of the damper open limit switch. In this case the VER
.
CLOSED
Ratings and Wiring Diagrams
state, switch group type 2. In the above con-
OPEN
, indicating that the damper is in the
CLOSED
VER MM
ON⁄OP
(deactivated)
FMM-1
VER MM
OFF⁄CL
(activated)
FMM-1
and state, switch group type 3. In the
OPEN CLOSED
and the damper open limit
CLOSED
MM monitors the position of the damper closed
CLOSED
MM is deac-
ON⁄OP
*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.
SLC Loop
MM is acti-
OFF⁄CL
177