Associated equipment

Lights

The FSCS provides lights that show the mode of each zone and the status of each piece of smoke control mechanical equipment. The status lights must conform to a specific color code scheme (Table 3).

Table 3. Pilot lamp color codes

Color

Description

 

 

Green

Fan On or damper Open

 

 

Red

Fan Off or damper Closed

 

 

Yellow (or Amber)

Verification of Operation Status light. Fan or

 

damper not in commanded position.

 

 

Audible trouble indicator

The FSCS may provide an audible trouble indicator with a silence switch. If provided, the indicator alerts personnel to system trouble.

Manual switches

The FSCS provides manual switches that operate smoke control system fans and dampers. Normally, there is one manual switch for each piece of equipment. However, in complex smoke control systems that have very large fan systems, one switch may operate more than one piece of equipment. This allows the smoke control system to coordinate smoke control functions without damaging equipment. For example, the manual switches that control large central fan systems may also operate the mixing dampers to prevent tripping the high- and low-pressure cutouts.

Manual switches at the FSCS are either 2- or 3-position switches. Labels show the current state of each switch (Table 4).

Table 4. Switch state descriptions

Switch state

Equipment

 

 

ON-AUTO-OFF

Fans controlled by the smoke control system or

 

other automatic control system

 

 

OPEN-AUTO-CLOSE

Dampers controlled by the smoke control

 

system or other automatic control system

 

 

ON-OFF

Fans only controlled from the FSCS

 

 

OPEN-CLOSE

Dampers only controlled from the FSCS

 

 

Smoke control system equipment

The smoke control system receives alarm signals from the FACP and manual command signals from the FSCS. On receiving alarm signals and/or manual commands, the smoke control system controls the mechanical smoke control equipment. Manual command signals from the FSCS take priority over alarm signals.

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Trane Engineered Smoke Control System for Tracer Summit Smoke control system equipment, Lights, Audible trouble indicator

BAS-APG001-EN, Engineered Smoke Control System for Tracer Summit specifications

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