Honeywell NOTIFIER SCS Series Operation And Installation Manual page 154

Ratings and Wiring Diagrams
Power Source
Listed contact for
Energy
Management
System
1b listed
contact
Service
Disconnect
Switch
Figure 5.45 depicts a fan in an HVAC system with the capability of
above configuration, the CON
the fan (the contactor is used when the power being switched is greater than 24 volts). When the CON
is closed, thus allowing the EMS to freely control the fan. In this case the EMS is
power is supplied to the fan, the fan is
position of the sail switch, which would indicate when the fan is
OPEN
due to the EMS. When the CON
OFF
being supplied by the EMS.
Switch group type 7 is for a fan that would require the capability of
sible to determine this information from either switch group type 5 or switch group type 6, switch group type 7 would only be necessary for
redundancy in verifying the state of the fan. For example, if switch group type 5 were used instead of switch group type 7, the
fan would be verified when the monitor module is activated and the
Utilizing switch group types 5 or 6 also saves the use of an additional monitor module. Switch group type 7 would use two monitor modules
to provide the same verification as types 5 or 6.
154
Energy Management System
(use 3.9K listed ELR with FZM-1)
FAN OFF
Power Return
Figure 5.45 Fan Control - HVAC Switch Group Type 6
CM is deactivated. The CON
OFF⁄CL
and the sail switch is
OFF
CM is activated, the normally closed contactor opens, thus cutting any power to the fan that was
OFF⁄CL
Listed
24 VDC
Power Source
ELR-47K
Listed
Sail
Switch
N/O
COM
N/C
control and verification of the
OFF
CM controls a normally closed contactor which switches power to
OFF⁄CL
, so no power is being supplied to the fan. When no
OFF
, indicating no airflow in the duct. The VER
CLOSED
. In this case the VER
ON
control and verification of both the
OFF
state of the fan would be verified when the monitor is deactivated.
ON
HVAC Wiring Diagrams
Listed
24 VDC
Power Source
CON CM
OFF/CL
(deactivated)
*If the SLC device
does not match the
one in this figure,
refer to the SLC
manual appendix,
which contains
wiring conversion
FCM-1
charts for type V and
VER MM
type H modules.
ON/OP
(deactivated)
FMM-1
SLC Loop
state, switch group type 6. In the
ON
CM is deactivated, the contactor
OFF⁄CL
ON⁄OP
MM is deactivated because the fan is
ON⁄OP
and states. Since it is pos-
ON OFF
SCS Series Manual — P/N 15712:L 7/18/16
MM monitors the
state of the
OFF