Honeywell NOTIFIER SCS Series Operation And Installation Manual page 93

Building-Specific Operation and Programming Examples
NOTE: For FSCS Applications with AM2020/AFP1010 Revision 4.0 software or later, Zone 240 is used to activate FSCS mode priority.
Once this zone is activated, subsequent automatic events will be locked out. Smoke control operation can only be overridden manually.
Each smoke detector input that will lock out the system must be mapped to Z240. Inputs that are not to activate lockout, such as pull
stations, should not be mapped to Zone 240.
Now that a general scheme has been worked out, we can begin determining CBE programming for the FACP.
The Control-By-Event equations for control modules and the Control-By-Event lists for monitor modules (if used) require quite a bit of
thought before being programmed. Control-By-Event equations provide the necessary control capabilities during automatic operation of the
smoke control station. For instance, if a fan is to be turned on in response to a fire on a particular floor, the CBE equation for the control
module which controls that fan must reference all of the detectors on that floor. When one of the detectors is active as a result of a fire, the
CBE equation becomes TRUE, activating the control module and turning on the fan. If the designer is unfamiliar with CBE programming,
Appendix A, Control-By-Event, should be read before proceeding.
NOTE: Some of the CBE equations in this example exceed the 14 byte limitation called out in Appendix A. They were intentionally left
intact to show the complete equation and to reduce complexity. Equations larger than 14 bytes must be broken into smaller groups of
equations as shown in Appendix A.
The first CBE equation to be determined is for the stairtower fan. The stairtower fan has one control module for controlling the ON capabil-
ity of the fan (the control module is referred to as a CON
loop 9, L9M1 (the monitor module for the stairtower fan would be L9M2). For our example, if any detector, pull station, or waterflow switch
is ACTIVE, the stairtower fan must be turned on. So, the CBE equation for the CON
pull station and the waterflow switch would be monitored by an monitor module. The monitor module for the pull station is L1M1 and the
monitor module for the waterflow switch is L1M2. The six detectors on the first floor; L1D1, L1D2, L1D3, L1D4, L1D5, and L1D6; and the
two monitor modules; L1M1 and L1M2; are wired on SLC loop one of the FACP. Each floor has the same configuration of detectors and
modules except the second floor is on loop 2, the third floor is on loop 3, etc. So, the fifth detector on floor 8 would be L8D5. If nine reverse
software zones are defined (Z201, Z202, Z203, Z204, Z205, Z206, Z207, Z208, and Z209), one for each floor (Z201-Z208) and one for all
pull stations, the software zones for each floor would be programmed with CBE equations of:
OR(LxD1 LxD2 LxD3 LxD4 LxD5 LxD6 LxM2)
where x is one of the eight loops (1-8) that corresponds to the appropriate floor. The software zone for the pull stations (Z209) would be pro-
grammed with a CBE equation of:
OR(L1M1 L2M1 L3M1 L4M1 L5M1 L6M1 L7M1 L8M1)
The CBE equation for the stairtower fan control module would be:
OR(Z201 Z202 Z203 Z204 Z205 Z206 Z207 Z208 Z209)
The elevator fan operates under the same circumstances as the stairtower fan and therefore has the same CBE equation. The elevator fan has
one control module for controlling the ON capability of the fan (the control module is referred to as a CON
this CON CM is the third module wired on SLC loop 9, L9M3 (the monitor module for the elevator fan would be L9M4). Since the ele-
ON⁄OP
vator fan operates under the same conditions as the stairtower fan, the CBE equation for the CON
same:
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 CBE equations for the reverse zones would become
TRUE, which would cause that reverse zone to become ACTIVE. The activation of that zone would cause the equations for L9M1 and
L9M3 to be TRUE, which would cause the control modules to be ACTIVE. When the control modules become active the fans for the
stairtower and elevator hoistway will turn on.
The next set of equations to be determined is for the supply dampers. There is one control module per damper with the capability to open the
dampers (the control module is referred to as a CON
on the SLC loop for the floor that they serve. For instance the two control modules for floor 3 would be L3M3 and L3M6 (the four monitor
SCS Series Manual — P/N 15712:L 7/18/16
CM). Let us assume that this CON
ON⁄OP
CM). Let us assume that the two CON
ON⁄OP
CM is the first module wired on SLC
ON⁄OP
CM must be TRUE when any device is active. The
ON⁄OP
CM). Let us assume that
ON⁄OP
CM of the elevator fan will be the
ON⁄OP
CMs for the supply dampers are wired
ON⁄OP
The SCS⁄SCE
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