Honeywell NOTIFIER SCS Series Operation And Installation Manual page 166

Ratings and Wiring Diagrams
1a, 1b
listed
contact
Damper
Open
Power
MOTOR
Power Return
Figure 5.57 depicts a motorized damper in an HVAC system with the capability of
group type 6. In the above configuration, the CON
contactor for the damper open power line, and a dual normally open/normally closed contactor for the damper close power. When the
CON CM is activated, the normally closed contactor is opened (cutting any power supplied by the EMS to the damper open power
OFF⁄CL
line), the normally closed portion of the dual contactor is opened (cutting any power supplied by the EMS to the damper closed power line),
and the normally open portion of the dual contactor is closed, thus supplying power to close the damper. When the CON
vated, the EMS is free to control the damper. The EMS is currently supplying power to the damper closed power line.
When power is supplied to the damper closed power line, the damper closes. When the damper completely closes, the damper closed limit
switch is , indicating that the damper is in the
CLOSED
The VER MM monitors the
ON⁄OP
damper is .
CLOSED
166
1b listed contact
Damper
Closed
Power
DAMPER
CLOSED
AC
Figure 5.57 Motorized Damper Control - HVAC Switch Group Type 6
position of the damper open limit switch. In this case the VER
CLOSED
Energy
Management
System
ELR-47K
(use 3.9K listed ELR with FZM-1)
Limit Switch
for open
position
N/O
COM
CM is deactivated. The CON
OFF⁄CL
position.
CLOSED
Power Source
Listed
24 VDC
Power Source
CON CM
OFF/CL
(deactivated)
FCM-1
VER MM
ON⁄OP
(deactivated)
FMM-1
control and verification of the
CLOSED
CM controls two contactors: a normally closed
OFF⁄CL
MM is deactivated because the
ON⁄OP
SCS Series Manual — P/N 15712:L 7/18/16
HVAC Wiring Diagrams
*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
state, switch
OPEN
CM is deacti-
OFF⁄CL