Trane TRACER SUMMIT BAS-APG001-EN Manuel D’Utilisation

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Chapter 2 Pre-installation considerations
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BAS-APG001-EN
Normal mode
A zone is in normal mode when no fire, smoke, or sprinkler alarms are 
present in the building. In some zoning systems, a zone may be in normal 
mode if an alarm condition is present in the building but the zone is not 
affected. In normal mode, the smoke control system is inactive.
Alarm mode
A zone is in alarm mode when it is the origin of the first fire, smoke, or 
sprinkler alarm. In alarm mode, the smoke control system operates fans 
and dampers to protect adjacent and unaffected zones and provide a 
smoke exhaust route for the alarm zone.
Adjacent mode
A zone is in adjacent mode when it is next to the alarm zone. However, in 
some zoning systems, zones that are not next to the alarm zone may be 
designated as adjacent zones. Other zoning systems may designate all 
non-alarm zones as adjacent zones. Codes do not state which zones are 
adjacent. In adjacent mode, the smoke control system sets fans and 
dampers to pressurize adjacent zones in order to contain the smoke in the 
alarm zone.
Unaffected mode
A zone is in unaffected mode when it is neither the alarm zone nor an 
adjacent zone and an alarm is present in the building. In large buildings, 
there may be many zones that are not near the alarm zone. Codes do not 
state which zones are unaffected. In unaffected mode, the smoke control 
system may shut down and isolate unaffected zones. Or, the smoke 
control system may allow unaffected zones to operate in normal mode. 
Actual system operation depends on the design of the smoke control 
system.
Associated equipment
Equipment associated with the smoke control system design is a pre-
installation consideration prior to setting up the smoke control system 
controls. Associated equipment includes: fire alarm system equipment, 
fire alarm control panel, firefighter’s smoke control station, and smoke 
control system equipment.
Fire alarm system equipment
The building fire alarm system is responsible for detecting an alarm 
condition, alerting occupants by audible and visual means, and signaling 
the smoke control system. Fire alarm system equipment includes: area,