Honeywell NOTIFIER SCS Series Operation And Installation Manual page 103

Building-Specific Operation and Programming Examples
The recirculation damper has one control module and one monitor module. If they were wired on SLC loop 9, the CON
L9M5 and the VER
same reverse zones as the stairtower fan and elevator hoistway equations used, the equation would be as follows:
OR(Z201 Z202 Z203 Z204 Z205 Z206 Z207 Z208 Z209)
If any device in the building becomes active as a result of a fire, one of the eight reverse zone CBE equations would become TRUE, which
would cause that reverse zone to become active. The activation of that zone would cause the equations for L9M5 to be TRUE, which would
cause the CON
OFF⁄CL
The CBE equations for the supply and exhaust fans are a little more complex than the equations previously discussed. In order to prevent
damage to ductwork, the supply and exhaust fans should not be turned on until the dampers that need to opened are open and the dampers
that need to be closed are closed. So, not only do the CBE equations have to check when a detector is in alarm, but they have to check the
monitor modules on the dampers to ensure the open/closed position. The supply fan has one control module for controlling the ON capability
of the supply fan and the exhaust fan has one control module for controlling the ON capability of the exhaust fan (both control modules are
referred to as CON
ON⁄OP
and ninth modules on this loop. The control module for the supply fan would be L9M7 and the control module for the exhaust fan would be
L9M9 (the monitor modules would be L9M8 and L9M10 respectively).
There are two monitor modules per damper and there are four dampers per floor (two supply and two exhaust). The supply dampers must be
checked to make sure one of the dampers is closed. The exhaust dampers must be checked to ensure one of the dampers is open. Also, the
recirculation damper must be checked to ensure that it is closed. Let us assume that the four monitor modules for the dampers are wired on
the SLC loop for the floor that they serve. As stated earlier, the two monitor modules for one supply damper on floor 3 would be L3M5 and
L5M6 and the two monitor modules for the other supply damper on floor 3 would be L3M9 and L3M10 (where LxM5 and LxM9 are the
VER MMs and LxM6 and LxM10 are the VER
ON⁄OP
L5M13 and L5M14 and the two monitor modules for the other exhaust damper on floor 5 would be L5M17 and L5M18 (where LxM13 and
LxM17 are the VER
If eight more reverse software zones are defined (Z211, Z212, Z213, Z214, Z215, Z216, Z217, and Z218), one for each floor, and pro-
grammed with a CBE of:
AND(Z20x LxM6 LxM10 LxM13 LxM17)
where x is one of the eight loops (1-8) that corresponds to the appropriate floor, then the CBE equations for both L9M3 and L9M4 would be:
AND(OR(Z211 Z212 Z213 Z214 Z215 Z216 Z217 Z218) L9M6)
If any device in the building becomes active as a result of a fire (except the manual pull stations) AND both the supply dampers for that floor
are closed and the exhaust dampers for that floor are open, one of the eight reverse zone CBE equations would become TRUE, which would
cause that reverse zone to become active. The activation of one of the reverse software zones AND L9M6 active (indicating that the recircu-
lation damper is closed) would cause the equations for L9M7 and L9M9 to be TRUE, which would cause the control modules to be active.
When the control modules become active the supply fan and the exhaust fan will turn on.
Once CBE equations have been determined for all devices being used for smoke control, each control and monitor module must be mapped
to the appropriate EIA-485 protocol point. This process is very important because a control or monitor module is linked to its associated pro-
tocol point within a particular switch group for proper communication. The control module and monitor module information for the fans is
listed below:
Mapping in this fashion causes switch group 1 for the SCS at address 5 to control and monitor the fan for the stairtower. Similarly, Switch
group 2 would be for the elevator fan, switch group 3 would be for the supply fan, switch group 4 would be for the exhaust fan, and switch
group 5 would be for the recirculation damper. All of the dampers must be mapped in the same way.
SCS Series Manual — P/N 15712:L 7/18/16
MM would be L9M6. The recirculation damper must close in response to any detection of a fire. By using the
OFF⁄CL
CM to be active. When the control module becomes active the damper for the recirculation air duct will close.
CMs). Let us assume that both control modules are wired on SLC loop 9 of the FACP. These would be the seventh
MMs and LxM14 and LxM18 are the VER
ON⁄OP
Stairtower fan CON
VER
Elevator fan CON
VER
Supply fan CON
VER
Exhaust fan CON
VER
Recirculation damper CON
VER
MMs). The two monitor modules of one exhaust damper on floor 5 would be
OFF⁄CL
MMs).
OFF⁄CL
loop # / module #
CM L9M1
ON⁄OP
MM L9M2
ON⁄OP
CM L9M3
ON⁄OP
MM L9M4
ON⁄OP
CM L9M7
ON⁄OP
MM L9M8
ON⁄OP
CM L9M9
ON⁄OP
MM L9M10
ON⁄OP
CM L9M5
OFF⁄CL
MM L9M6
OFF⁄CL
OFF⁄CL
SCS address/point #
A5P1
A5P3
A5P5
A5P7
A5P9
A5P11
A5P13
A5P15
A5P17
A5P19
The SCS⁄SCE
CM would be
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