Honeywell NOTIFIER SCS Series User Manual

182 SCS Series Manual — P/N 15712:L 7/18/16
Ratings and Wiring Diagrams HVAC Wiring Diagrams
Figure 5.74 EP Damper Control - HVAC Switch Group Type 8
Figure 5.74 depicts an EP damper in an HVAC system with the capability of OPEN control, switch group type 8. In the above configuration,
the CON
ON⁄OP
CM is activated. The CON
ON⁄OP
CM controls a normally closed contactor for the pressure switch power line. When the
CON
ON⁄OP
C M is activated, the normally closed contactor is opened. When the contactor opens, power is cut from the pressure switch,
which allows airflow to open the damper. When the CON
ON⁄OP
CM is deactivated, the EMS is free to control the damper. The EMS is cur-
rently being overridden by the CON
ON⁄OP
CM.
FMM-1
Airflow
PRESSURE
SWITCH
SMOKE
DAMPER
OPEN
Power
Source
Listed
24 VDC
Power Source
SLC Loop
DEP-h8A-fs-2.wmf
Power
Return
VER
OFF⁄CL
MM
(deactivated)
N/O
COM
Limit Switch
for closed
position
ELR-47K
(use 3.9K listed ELR with FZM-1)
Pneumatic
Tubing
Energy
Management
System
1b listed
contactor
FRM-1
CON
ON/OP
CM
(activated)
COM
N/O.
*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.

Honeywell NOTIFIER SCS Series Specifications

General

Brand	Honeywell
Model	NOTIFIER SCS Series
Category	Control Unit
Language	English