Honeywell NOTIFIER SCS Series User Manual

SCS Series Manual — P/N 15712:L 7/18/16 111
Dedicated Smoke Control System Wiring Diagrams Ratings and Wiring Diagrams
Figure 5.4 Fan Control, Dedicated System - FSCS Switch Group Type 5
Figure 5.4 depicts a fan in a dedicated system with the capability of
ON control and verification of the ON state, switch group type 5. In the
above configuration, the CON
ON⁄OP
CM is deactivated. The CON
ON⁄OP
CM controls a normally open contact which switches power to the fan
(the contact is used when the power being switched is greater than 24 volts). When the CON
ON⁄OP
CM is deactivated, the contact is open,
thus cutting power to the fan. When power is cut to the fan, the fan is
OFF and the sail switch is CLOSED, indicating no airflow in the duct. The
VER
ON⁄OP
MM monitors the OPEN position of the sail switch, which would indicate when the fan is ON. In this case the VER
ON⁄OP
MM is
deactivated because the fan is
OFF and the sail switch is CLOSED.
Switch group type 6 is for a fan that would require the capability of
ON control and verification of both the ON and OFF states. Since it is pos-
sible to determine this information from either switch group type 4 or switch group type 5, switch group type 6 would only be necessary for
redundancy in verifying the state of the fan. For example, if switch group type 4 is used instead of switch group type 6, the
OFF state of the
fan would be verified when the monitor module is activated and the ON state of the fan would be verified when the monitor module is deac-
tivated. Utilizing switch group types 4 or 5 also saves the use of an additional monitor module. Switch group type 6 would use two monitor
modules to provide the same verification as types 4 or 5.
The use of switch group type 7 would never be necessary in a dedicated system unless there were a need for redundancy in
OFF and ON con-
trol. Type 7 is used for
ON and OFF control and verification of the OFF state. When the CON
ON⁄OP
CM is deactivated, the CON
OFF⁄CL
CM is
activated, and vice versa. The CON
ON⁄OP
CM controls a normally open contact which switches power to the fan. The CON
OFF⁄CL
CM con-
trols a normally closed contact which switches power to the fan. When the CON
ON⁄OP
CM is deactivated, the contact is open, thus cutting
power to the fan. When the CON
OFF⁄CL
CM is activated, the contact is open, thus cutting power to the fan. Both control modules are not nec-
Power
Source
1a listed
contactor
Service
Disconnect
Switch
ELR-47K
(use 3.9K listed ELR with FZM-1)
Listed
Sail
Switch
N/O
COM
N/C
Power Return
Listed
24 VDC
Power Source
FMM-1
FCM-1
CON
ON⁄OP
CM
(deactivated)
VER
ON⁄OP
MM
(deactivated)
FAN-Df5-fs-2.wmf
SLC Loop
FAN OFF
*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