Honeywell NOTIFIER SCS Series Operation And Installation Manual page 112

Ratings and Wiring Diagrams
essary to cut the power to the fan: one is sufficient. When power is cut to the fan, the fan is
airflow in the duct. The VER
the VER MM is deactivated because the fan is
ON⁄OP
The use of switch group type 8 would never be necessary in a dedicated system unless there were a need for redundancy in
trol. Type 8 is used for
activated, and vice versa. The CON
trols a normally closed contact which switches power to the fan. When the CON
power to the fan. When the CON
essary to cut the power to the fan: one is sufficient. When power is cut to the fan, the fan is
airflow in the duct. The VER
the VER MM is deactivated because the fan is
ON⁄OP
The use of switch group type 9 would never be necessary in a dedicated system unless there were a need for redundancy in
trol. Type 8 is used for
CON CM is activated, and vice versa. The CON
OFF⁄CL
CON CM controls a normally closed contact that switches power to the fan. When the CON
OFF⁄CL
open, thus cutting power to the fan. When the CON
modules are not necessary to cut the power to the fan: one is sufficient. When power is cut to the fan, the fan is
, indicating no airflow in the duct. Since it is possible to determine both
CLOSED
group type 8, switch group type 9 would only be necessary for redundancy in verifying the state of the fan. For example, if switch group type
7 is used instead of switch group type 8, the
the fan would be verified when the monitor module is deactivated. Utilizing switch group types 7 or 8 also saves the use of an additional
monitor module. Switch group type 9 would use two monitor modules to provide the same verification as types 7 or 8.
112
MM monitors the
ON⁄OP
OFF
and control and verification of the
ON OFF
CM controls a normally open contact which switches power to the fan. The CON
ON⁄OP
CM is activated, the contact is open, thus cutting power to the fan. Both control modules are not nec-
OFF⁄CL
MM monitors the
ON⁄OP
OFF
and control and verification of the
ON OFF
OFF⁄CL
state of the fan would be verified when the monitor module is activated and the
OFF
position of the sail switch, which would indicate when the fan is
OPEN
and the sail switch is
CLOSED
state. When the CON
ON
ON⁄OP
position of the sail switch, which would indicate when the fan is
OPEN
and the sail switch is
CLOSED
and state. When the CON
ON OFF
CM controls a normally open contact that switches power to the fan. The
ON⁄OP
CM is activated, the contact is open, thus cutting power to the fan. Both control
ON
Dedicated Smoke Control System Wiring Diagrams
and the sail switch is
OFF
.
CM is deactivated, the CON
ON⁄OP
CM is deactivated, the contact is open, thus cutting
and the sail switch is
OFF
.
CM is deactivated, the
ON⁄OP
CM is deactivated, the contact is
ON⁄OP
OFF
and verification from switch group type 7 or switch
OFF
SCS Series Manual — P/N 15712:L 7/18/16
, indicating no
CLOSED
. In this case
ON
and con-
OFF ON
CM is
OFF⁄CL
CM con-
OFF⁄CL
, indicating no
CLOSED
. In this case
ON
and con-
OFF ON
and the sail switch is
state of
ON